PROVIDING HVAC, PLUMBING &
ELECTRICAL SERVICES
IN WILMINGTON, NC, THE GREATER
CAPE FEAR REGION & BEYOND
SINCE 1981

ALSO SERVING SHALLOTTE, NC & MYRTLE BEACH, SC

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O’BRIEN SERVICE COMPANY COMPLETES OVER 7,000 TRAINING HOURS ANNUALLY

At O'Brien Service Company, continuous training is part of our commitment to excellence. Our team completes more than 7,000 training hours each year, ensuring we're equipped with the latest knowledge, skills, and industry certifications to provide exceptional HVAC, Plumbing, Electrical, and Building Performance services. Combined with decades of experience, it's one more reason homeowners and businesses have trusted O'Brien Service Company since 1981. Thank You for choosing and supporting a locally owned & operated family business!

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HVAC technician performing maintenance on a heat pump in Brunswick County.

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O'Brien Service Company office in Wilmington, North Carolina.

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Google Rating

4.9

Based on 1474 reviews

O'Brien Service Company

4.9

Eleanor K Post

17:39 21 Sep 26

A+++++ service from start to finish!From our initial estimate visit with Tim, we knew we were in great hands. He was extremely knowledgeable and walked us through everything from signing the contract to the final inspection date. Every single thing he promised—from timelines to who would be contacting us—happened exactly as described.A huge shoutout to Heather in the office as well! She was incredibly helpful, punctual, and seamless when scheduling our service dates and handling all necessary follow-ups.Finally, Cameron and Steven—the absolute dynamic duo who installed our new HVAC unit, air handler, and replaced all our ductwork. Professional and considerate don't even begin to cover it. They were beyond respectful of our home, which was no small task given the size of this job. Most of the time, I barely even knew they were here. Super polite and executed the installation better than I could have ever imagined.We have been with O'Brien Service Company for years now, and this experience is exactly why we will never switch. Thank you, O'Brien team!

Rick Davis

21:31 17 Sep 26

Rich and Jett were absolutely phenomenal!! Professional and clean work, would highly recommend! Absolutely satisfied!

Zach Newkirk

15:13 17 Sep 26

Excellent service ! They really listen to what your needs are and are accommodating to help !

Jim Smith

13:07 16 Sep 26

Dustin

19:12 15 Sep 26

Guage and Nick and his team were fantastic and made this process as seamless as possible! Kris our salesman was awesome. They went above and beyond to make sure we were satisfied and informed. Obviously the last thing anyone wants to do is spend money on repairs but they truly made it as pleasant as it possibly could be to have to do it!

Raymond Burt

23:12 09 Sep 26

From my initial discussion with Matt Buckingham-about replacing my HVAC system to the installation team led by Gauge Hancock, I was highly impressed with their professionalism and competence. The installation team did a great job in a timely manner. Gauge and his crew worked quickly while respecting the property. They responded to any requests or questions I had. I highly recommend them to anyone considering a replacement of the HVAC system.

Diane Kelly

18:45 04 Sep 26

Cameron and his crew were here 4 days installing a new HVAC system and ducts. We were kept informed of everything as the work progressed. The project was excellent from the sales rep’s presentation to instructions on system operation. Thanks O’Brien.

Colleen Parker

17:34 31 Aug 26

I was extremely satisfied with the work the OBrien team did on my home while installing my AC. They were very professional, knowledgeable and arrived on time. I would definitely use again.

Peggy Hendrix

16:05 27 Aug 26

My experience with O’Brien Service has always been exceptional. From the time they send a technician out to diagnose problem until situation is resolved, every person is very professional and knowledgeable. Matt Buckingham explains everything up front, quotes the job, and schedules when the work is to be done. With this most recent improvement to my upstairs unit to prevent condensation, technicians Gauge, Nick, Eli were wonderful to work with and take care of every detail, including total cleanup. I can highly recommend this company for any HVAC needs! Thank you, O’Brien Service team!!!

James Edwards

18:23 25 Aug 26

Jeremy is the man! Super knowledgeable and helpful

Armando DeSousa

13:07 10 Aug 26

We have been O'Brien customers for over 26 years. 3 new HVAC installations and a few emergency calls later and their service is still nothing short of amazing.The office response is always prompt, the technicians are courteous, friendly and efficient.Thank you for always being there when needed during emergencies.

Nick Pandolf

00:24 06 Aug 26

I’m very pleased with my unit you guys installed, and I’m especially pleased with Nick, gauge, and Eli. They are a great crew and were able to answer any questions I had throughout the installation process!

Rob Ronner

16:50 04 Aug 26

I would recommend O'Brien's to anyone who had any AC problems or needs. Eric and Jackson were fantastic technicians, personable and professional as well as speedy and thorough. They did a great job and it feels fantastic in my house now. I can't thank you guys enough!

Mary Lucht

16:43 31 Jul 26

Excellent care from the installation team and Jackson and Eric were amazing!

Wooster

22:41 29 Jul 26

Excellent job. Jackson and Eric went above and beyond what I expected. They showed up on time and didn't stop until my new A/C unit was installed and working as it should. Thank you so much. I appreciate how polite you were and also left everything clean and tidy.

Monica Mclamb

22:25 29 Jul 26

Jordan stopped by to put together a quote for a AC unit replacement for our infant room. Very polite, respectful, made sure I knew exactly what he was doing during this process and very thorough with any explanations for questions I had

Ann Seymour

19:32 29 Jul 26

I had the best possible experience with O'Brien. As part of a government program, I was able to have a new heat pump installed in my home. O'Brien was the company I selected for purchase and installation, and it was the best decision I could have made. Every single step in the process was seamless: from my first phone call to O'Brien to county inspection following installation of the Trane system. It was.quite a job! Jeremy Heise came over first, reviewed everything (my decrepit systems, the best heat pump for my small house, and what was involved in approvals by EnergySaverNC who was responsible for the project). Jeremy made what could have been a difficult process for me an easy one to understand. The two-day removal/installation was scheduled in no time and went without a hitch. Mike Bennett handled all walk-throughs: his attention to detail was remarkable, The work was performed by very, very skilled technicians who were also a joy to have in the house – JT Walsh, Steven Clark, Carson from Meade Electric. Jeremy was always available, Tyler Criteser and Jared Leclair came by later to double-check the fuse box: terrific technicians and wonderful guys. Abby Modlin was my patient, intrepid scheduler who also sorted out all my questions. Every one of them went over and beyond for me. Apologies for anyone I forgot to mention: you were fabulous, too. I recommend them as highly as I can and without reservation. Thank you so much, everybody. My house feels wonderful for the first time in years. It's a home.

Patrick Adams

13:27 29 Jul 26

Review editedJustin was very helpful in diagnosing the issues with our system. I'm am pleased that the management team stepped up to assist us with our issue. Back to 5 stars.

Carl Busian

01:10 28 Jul 26

Several weeks ago, and one of the hottest days of the year, our HVAC unit went out Saturday morning 4:30 a.m. I called the afterhours number and left a message and indicated I was a member of the Energy Savings Club. I was contacted soon after and was advised they could have a technician at our house within 4 hours. I got a call from Jared LeClair around 11:00 indicating he would arrive in 20 minutes. He was very thorough in checking our unit to find the problem. He determined we had a bad circuit breaker and would have to drive across town to get a replacement at the shop in order to match our electrical panel. He took the time to drive to the shop and return with a new circuit breaker. After replacing the breaker our unit was back! He still wasn't happy with one of the numbers and added freon to the unit which did the trick. I can't say enough for his attitude and the prompt service from O'Brien. I am extremely glad I am a member of their Energy Savings Club too as I got preferred/quick service, and a discount on my invoice. A++ for O'Brien

William Podd

23:27 27 Jul 26

O'Brien Service Company is excellent! Recent service was first rate across the board. Customer Service, HVAC, Plumbing, Estimating and Installation - all A+. It's not often that an entire team is so consistently customer focused.

Stephanie Harrison

13:22 27 Jul 26

Joe first came to our home to investigate why it was very hot on one side of the house and very cold on the other side. Joe was very polite and explained exactly what was happening and how it could be fixed to ensure it never happened again. Unfortunately the prior service we used was never a reliable or sound ac/heat company. Joe explained the current system the other company used may or may not last. I asked Joe to draw up what he thought would be the best for our current situation. Well the old system lasted three days!! We requested Joe to fix the problem with the system he provided details of. Joe did an outstanding job during the extreme heat we’ve had recently! We highly recommend Joe for any type of ac/heating issues you may have today or in the future. He’s very professional and knowledgeable!! We also highly recommend O’Brians! Excellent service always!!

gauge hancock

23:50 23 Jul 26

Gauge Eli and nick did a great job installing my new unit very professional 10 out of 10 service

Veronica Snow

21:15 22 Jul 26

Great service! Eric and Jackson handled the installation of my new system. They were professional and thorough.

Ann Foster

19:32 22 Jul 26

Great service. Arrived ahead of schedule. Very professional.

Brandon Jones

17:48 22 Jul 26

Chris at Obrien provided excellent service and gave me in detail understanding of my plumbing issue. He supported me on solving my issue and was on time and provided fair price.Very happy overall and would be happy to call on Obrien in the future to handle my plumbing issues.

Patricia Cook

19:41 21 Jul 26

Great service and such a friendly and knowledgeable technician! Highly recommend Liam and O’Brien!

Tom Burkhart

18:35 21 Jul 26

Cheryl Leonard

20:53 20 Jul 26

I called them out spent a lot of time telling them about the specific large scope of work and set an appointment. They came out within 24 hrs. I spent about 45 minutes with them. They went into their truck and said we will have a quote for you today. I was a bit surprised but ok, then an hour later I walked out to tap on the truck window to give them all of my contact info and said you can send it to me. Feeling bad that had been sitting in their car for like an hour. They left and said we have to get our manager to get this together and we will get it to you tomorrow. That sounded more realistic. A week later I called to only hear that your job it too big, too much and we can’t handle that with our crew size. Ok but at what point should this have been determined when the call was taken with the list “scope of work?” No they didn’t even call me to tell me this is not something they could do. If you have a typical small job they are your people but that’s it. So unprofessional

jajachurch

20:08 20 Jul 26

Eric and Jackson were great! They were very clean and efficient and were even done a little earlier than what we were told. Also shout out to Kris for making it an easy process from start to finish. Definitely recommend O’brien for all your HVAC needs.

Sara Allen

20:39 19 Jul 26

The technician, Jared LeClair, arrived within a couple of hours of my call (on the hottest Saturday of the year) and went straight to work replacing a capacitor and repairing a damaged duct. My house cooled from 90 degrees to 76.Thank you Jared and O’Brien for saving my weekend. I have always been pleased with your service.

J-Turn

22:37 18 Jul 26

Kevin came out to help us very quickly, even though it was after hours and he wasn't technically on call. All the techs were booked up and so he went above and beyond for us. He also showed me what he was doing every step of the way, so I could learn as he worked. Great experience!

Jane mcneill-balter

18:51 18 Jul 26

Eric and Jackson were awesome, super nice and incredibly efficient!!! They are both amazing representatives of the company’s reputation. We couldn’t be more impressed!!

Nancy Green

16:26 18 Jul 26

I recently had issues with my air conditioning system and when I called O’Brien they were super helpful and were able to get someone out the same day to asses the problem. Thankfully they were able to get a part the next day and had my system up and running. Service technicians Joey and Kevin M were knowledgeable, professional and very polite. Lydia was also super helpful in scheduling my service. I would highly recommend this awesome company!

Jessica Kuchlbauer

21:40 17 Jul 26

I was thrilled with the service provided by OBrien. Matt really took his time going over all the options with me, answering all my questions, and completing all the paperwork needed for my rebates and warranty. DeeAnne, at the office made scheduling around my difficult work schedule a breeze. John and the install crew were clean, fast and courteous. They worked hard on a hot day to get my A/C up and running yet I hardly knew they were there.So happy with how everything worked out. I highly recommend O’Briens!

Chris Cole

20:18 17 Jul 26

Very courteous and excellent job explaining everything that was being done, or needed! Gauge and crew were top notch from start to finish, every detail explained and executed!

Dave McRae

17:29 17 Jul 26

The very best and a person with full knowledge of the several work projects to be done. Will always be glad to see Mitchel and have his expertise!

red peters

18:21 16 Jul 26

Jonny came out late for a faulty blower motor service call . Motor would not start and needs to be replaced. Jonny put in the order and I spoke with Angel the next morning and she told me the motor was in stock and scheduled me for that afternoon . Jonny called in route arriving early! Jonny replaced the motor and got us back in AC quickly. Jonny did some system checks, pressures, temperatures, Amp draw and capacitor check as well as condensate drain. Service was very professional, detail oriented from a Technician that really enjoys his work.Thanks Jonny!Highly recommend O’Brien to all my friends and neighbors.

Kenneth Danford

00:39 16 Jul 26

We had a tough kitchen sink clog, Lauren kept working on the clog, having to use several plumbing solutions, never stopped until she got it cleared out. Very professional, great customer interface, very pleased with experience

Candace Thompson

21:38 14 Jul 26

Efficient, professional, lovely team of young techs who did the job right! My house was cared for as they worked for nearly 8-hours installing my unit. It was a hot day yet these guys didn’t miss a beat. Eric, Jackson, , and Javon. From estimate to install, I’ll take O’Brien every time!

Jeff Partl

19:27 14 Jul 26

Great experience, the tech (Joey) was great, resolved my issue very quickly. Explained what he did. Very satisfied!

Mike B

19:09 14 Jul 26

Nice guys. Good job

Kendra Parker

14:11 13 Jul 26

Brian and Jackson did a great job, were friendly, and helpful as they fixed our ducts. Very satisfied.

Matt Pikul

14:27 12 Jul 26

Janet Gorski

13:38 12 Jul 26

O'Brien Service Company recently replaced all the air flow tubing on our HVAC system and installed a media filter. It started with Kris, the salesman that visited our home, inspecting the system, addressed every question we had and prepared a reasonable offer that compelled us to retain O'Brien to perform the work we needed done. (We interviewed 3 of their competitors as well.) They even offered us a 3 year interest free loan, that we took advantage of!! Will and his team were great to work with. While the temperature in the attic was 130 degrees the 3 of them were undeterred and completed the job in the time planned for the removal and replacement of the air flow tubing along with making improvements in the air flow to rooms where there was barely any air flow coming thru the vents. Their tenacity in making sure we were satisfied was obvious in everything they did. Highly recommend talking with O'Brien if you have need of the services they offer. Janet and Larry Gorski

Henry Robbins

13:34 11 Jul 26

The team was professional and reliable. They ensured the system was working properly before leaving. I would recommend them for your HVAC needs

Patricia Simonetta

20:09 10 Jul 26

Everything was explained clearly. All my questions were answered and work was done timely. Kyle is a great asset to your company. Thank you!

B Bulluck

17:37 09 Jul 26

Eric and Jackson were very knowledgeable!

amber smith

15:54 09 Jul 26

We’re thankful we chose O’Brien Service Company to install our new HVAC system. Their professionalism throughout the entire process shined above the rest. Everyone we communicated with at O’Brien‘s was detailed, organized, kind, and knowledgeable. Matt Childree was wonderful throughout the quote and design process including providing options for relocating the new HVAC system to a more ideal location. Gauge Hancock and the other team of installers treated our home like their own, but more importantly, they did an amazing job with the install and kept us informed during the installation. Thank you to the O’Brien team for giving us peace of mind and confidence knowing we chose the right service company.

Sidney Smith

02:12 09 Jul 26

The team arrived on time and ready to get started. Despite 90+ degrees they worked to make it happen. Well Done !!

Rhonda Willette

22:45 08 Jul 26

Ryan came and saw the problem, gave us a quote and did the repair all in the same day. He was very polite, knowledgeable and answered all our questions. It was an extremely hot day but he never stopped working. He was wonderful.

Ann Marie McCarthy

18:58 07 Jul 26

Ryan was very thorough and patient when going through the purchasing options.

Vickie Lapp

23:49 06 Jul 26

Eric and Jackson worked hard today installing our new AC unit. Mitch supported them by helping with an issue. You are lucky to have them as professional kind employees! Such gentleman representing your company!!

Chris Foster

18:37 05 Jul 26

Michael Sides the service tech was incredibly thorough, made sure the job was done right. I appreciate how hard he worked on our equipment.

Carol tutherow

19:20 04 Jul 26

Fourth of July and air conditioner went out. I called O Brien and the nicest young man answered and right away was at the house fixing the unit. Such a polite and courteous young man. Thanks O'Brien!!❤❤❤

Ben Regier

20:24 02 Jul 26

Gauge Hancock and his crew were legends! Quick and professional at all times throughout the installation, always making sure I was taken care of throughout the entire process. Also a quick shoutout to Kris Sciales for setting up a great experience from the beginning!

John Renfrow

19:30 02 Jul 26

TJ and Steven were great to work with. They were knowledgeable and they enjoyed their job. The whole team from sales(Kris) without any pressure to finish.

pamelal garrett

15:55 02 Jul 26

Eric, Jackson& Eli at O’Brian’s replaced our broken HVAC system with care, efficiency and respect of our property. They are exceptionally personable young men with good attitudes. What a great team! Over all the entire experience from Adam’s evaluation and the coordination in the process has been seamless.

T Bruce

21:06 01 Jul 26

We had a great service call with a smart service technician, Joey Hawn. We were having issues with our thermostat inside and outside. He navigated us through the process of using our wifi connection to use our inside thermostat. Everything was back to normal at the end of our service call.

thomas mulvey

14:24 01 Jul 26

Anna Whelpley

21:38 30 Jun 26

O’Brien Service Company was great AGAIN! Never had anything but the best work done by O’Brien. Service Technician Tyler Criteser was especially awesome on July 1 when he came and was able to FIX my a/c! He also got me enrolled in their great service plan! Thrilled with the visit by Tyler and the bill only about $400 including a year of service plan. Only place to go for a/c and heating needs! Thanks!

anita ward

21:21 30 Jun 26

Mary Robinson

18:17 30 Jun 26

We highly recommend O'Brien Service Company for water heater installation. They were very knowledgeable and were able to answer our questions and accommodate our needs. We received a fair quote with no hidden fees and stuck to it. I cannot say enough good things about Kyle and Ryan work effort. They worked efficiently, removed the tank, left our place very clean and were also able to walk us through on how our new system operates. Great price, great customer service. We would absolutely use them again."

Vic Gorri

02:35 30 Jun 26

Mark Polich

01:45 29 Jun 26

Kyle did a great job of quickly finding the hidden water leak and quickly made the repair. He was very courteous and did a great job of communicating what he was doing and how much it would cost.

Diane Whitehurst

20:41 28 Jun 26

Dillon was very detail oriented and took time to make sure my systems were working correctly. Highly recommend!

Cheryl Turk

17:47 27 Jun 26

O'Brien's is absolutely the best and Chris was awesome- on time, personable, knowledgeable and quick. We highly recommend O'Brien's hvac and plumbing.

Greg Mcclintock

20:32 26 Jun 26

Unfortunately Obrians was very late in arriving as we waited all day for a plumber to clear our kitchen sink. They finally showed up as tech was finishing up a job 10 minutes away in Calabash. The price given to me the day before was $124 to clear the clog. Upon arrival the plumber quoted $537 for a 15 minute job. He stated the $124 was a dispatch fee. The office listened to the recording and it showed a discrepancy in detail. The dispatch invoice will not be paid. I don't know how they stay in business.

Vicky Reedy

15:16 26 Jun 26

Great experience! Showed up on time and did a great job! Kyle was great. Explained everything that he was going to do and what he did! Highly recommend.

Dennis Mccall

01:58 26 Jun 26

Guage and his crew were amazing. They showed up on time and were very professional. They took their time to ensure the unit was installed properly. O’Brien definitely has a dynamic crew with these guys. And the dogs loved them.

Becky Garrett

21:13 25 Jun 26

David & Tyler came to give me quotes at my place of business Prime Storage they were very knowledgeable and professional two great guys

Bill Lagan

23:11 22 Jun 26

Kyle was great to work with. So professional and knowledgeable. We have a new member to our family.

todd doroski

22:49 19 Jun 26

Noah Swain

22:37 19 Jun 26

Excellent experience with O'Brien Service Company from start to finish. Kris went above and beyond throughout the sales process—knowledgeable, patient, and genuinely helpful in making sure everything was clearly understood. He made the entire experience easy and stress-free, great communication and solid follow-up.The installation team—Mike, Pierce and crew—did outstanding work, and Heather kept everything on track with timely updates and clear scheduling throughout. Smooth, professional service all the way—highly recommend. New unit runs like a top.

ANDRA BROWNING REAL ESTATE

18:27 19 Jun 26

Exceptional! Called and they fit me in the same day. Prompt, kind and affordable. Thank you Collin!

Danny Pearce

17:23 18 Jun 26

Great experience from start to finish! Our design specialist, Jeremy, did a great job of explaining the benefits of replacing our old system with a Daiken system and helping us feel comfortable and confident with that decision. We're glad we did! Our installers, Mike and Pierce, did a great job! Worked tirelessly and efficiently, were very respectful to our home, and did an excellent job of explaining different parts of the system to us! Our contact with O'Brien, Heather, has been great keeping us informed and responding to our calls! We've been using O'BRIEN Service Company for many, many years, will continue to use them, and HIGHLY Recommend The O'BRIEN Team for all your HVAC needs!! Danny Pearce

Jillian Anderson

23:40 17 Jun 26

Eric and Jackson need a raise- and motorcycles! They were polite, professional, extremely funny- and they are the two cutest installers at O’Brien! Kris also very nice and great sense of humor! No one wants their AC to give up- but if you can laugh through it, eases that financial pain significantly!

Greg Thompson

16:25 17 Jun 26

We discovered what appeared to be a water leak inside a wall around 7pm one evening. We called the after hours line and within minutes Kevin (HVAC supervisor) diagnosed the problem over the phone as a plumbing issue and referred it to an Obrien plumber, who come out right away. Chris was our plumbing technician and he was professional, courteous, and knowledgeable. He fixed the problem quickly, charged us fairly, and we had the problem solved by 9pm the same night. We could not have been more pleased.

Rene Denis

23:17 16 Jun 26

I was able to get same day plumbing service for an issue that was created by a handyman that I hired. When the service tech came onsite, he quickly identified the issue. He went above and beyond to get the parts that were needed and got my problem resolved. Very professional and courteous.

Edward

20:27 16 Jun 26

Give O'Brien a Chance, you will be relieved you did! Licensed Chris Perry provided excellent customer service. Chris repaired our leaky garden faucet in under an hour here in North Chase Wilmington. Chris with 10 years of technical plumbing experience used his skills to successfully repair the leak. Friendly and professional, highly recommend. I will refer to neighbors. 5 star

Jason Zeigler

17:49 16 Jun 26

I don't write many reviews but I had to for the amazing job the team of O'Briens did at our house. Our old HVAC unit finally gave up the ghost after 20+ years of service. Kris was very helpful with sales information and explained the process in an easy to understand way. The installers Mike & Pierce were awesome at installing the new unit! They took their time, were very neat and did a great job! The process from sales to installation was top notch. For anyone needing HVAC services, O'Brien Service Company is the best!

James Burns

12:05 16 Jun 26

Kyle was punctual, courteous and efficient replacing/installing our garbage disposal.

Tiffany Maloney

22:50 15 Jun 26

Chris was extremely polite , efficient and professional. My service window was between 12 and 3:00 on a Saturday in June - Chris arrived a little before 12:00 and got the plumbing job done quickly on our beach rental home. Highly recommend.

Carol Lindley

22:00 15 Jun 26

Eric and Jackson did an amazing job. They were hard working and so polite.

Nancy Shulman

21:38 15 Jun 26

Was a simple issue. Very professional.

Jackie Meisel

21:21 14 Jun 26

I had an atypical plumbing issue that didn't deter Kyle. He left no stone unturned until he found the source of the problem. I appreciated his perseverance and professionalism. Pricing was very fair and O'Brien got us on the schedule in a timely manner when I first called in.My overall experience from start to finish was very positive with both Kyle and O'Brien.

Debra Foley

11:02 14 Jun 26

Chris Perry provided professional plumbing service and was extremely courteous.

Richard F.

10:08 13 Jun 26

Installation of our new Trane A/C package unit & Thermostat was completed in 1 day. Eric & Jackson were very personable & knowledgeable and a joy to work with.

Jodi Brown

21:16 11 Jun 26

Stefanie Anderson

13:29 10 Jun 26

Quote was $600 less than a competitor. Friendly and knowledgeable install team, arrived early which was great!

Shane Stone

20:51 09 Jun 26

These guys are amazing. Very accommodating, professional and thorough. Prices were more than fair and were able to get us a new AC unit sooner than I expected. Thanks guys!!

Jerrica Wentz

20:48 09 Jun 26

Fantastic company! The entire team was courteous, professional, and extremely thorough throughout the whole process. They replaced one of our older A/C units and even provided temporary A/C units while we waited for the new installation, which made a huge difference for our family.The workers were knowledgeable, competent, and respectful of our home. Everything was explained clearly, and the installation went smoothly. We truly appreciated the excellent customer service and attention to detail. Highly recommend for HVAC services in the Wilmington area!

Dana Kubissa

19:05 09 Jun 26

Guys were great - so helpful and fast and kind. It felt like an honest engagement on the problem and the fix. They’re saved in my phone for any future HVAC requests.

Patti Dunning

18:46 09 Jun 26

Very professional, polite, thorough and hard-working team lead by Gauge Hancock. I would highly recommend to anyone needing HVAC service

Amy Beausang

13:58 09 Jun 26

Always courteous, professional, and thorough. Service today from Dillon and he took the time to thoroughly investigate our issue and also to explain what was going on and all of our options.

Steve G

12:45 09 Jun 26

We had Obrien install a complete new HVAC system on our first floor and could not be happier with the entire process of working with them. From the first visit, going over our home space, to the financial options and finally the installation team, everything went absolutely smooth, was totally transparent, and we’re looking forward to being part of the Obrien family.

Ron Hritz

20:34 08 Jun 26

They are extremely professional and extremely competent. We had our dryer vent cleaned and we live on the fourth of a condo building and they cleaned the vent from inside. I would recommend them to anyone….without hesitation or reservation.

Christy Hendrickson

18:51 08 Jun 26

the guys, Eric and Jackson were great, made sure I knew how to use it. very friendly

netty Domenic

16:51 08 Jun 26

Water heater replaced it all went very smoothly.The crew were polite and worked hard answered all my questions. Very good experience!

Keith Johnson

12:15 03 Jun 26

We had a great first experience with O'Brien Service Company. We called for a commercial AC inop issue on a used Bard unit we had purchased and installed ourselves. Where most companies wanted nothing to do with this type of service call, O'Brien was on location less than a few business hours and the technician was friendly and fully confident in working on our system. He was able to quickly find the issue and replaced the part right away. Now we have cold AC and at a minimal cost to get us back up and running. Thank you!

Linda Spangler

22:36 02 Jun 26

Always punctual and knowledgeable. Answered all our questions for the 2 day install. Also Eric and Jackson were fun to talk too. Highly recommend to all. We have used O’Brien for years!

See all reviews Write a review

“Rich Rozanski and is team came in here and got the job done . I am a local superintendent for a contracting firm, and I have never experienced such Professionalism. They were in contact with me the whole time . very knowledgeable, courteous and I can’t think them enough. I’ve been a customer with a bronze for 20 years and I plan on being a customer with them for another 20 years thank you again so much.”

- Damien C.

September 16, 2026

“We are very pleased with the installation of a mini split unit in our garage. Matt gave a competitive quote, and Eric, Jackson, and Jed did a great job with the installation. They were courteous, efficient, and made sure you were satisfied. Thank you!”

- Lisa K.

September 10, 2026

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Do you and your family battle over the thermostat on sweltering summer days? One person cranks the AC, and another promptly lowers it. Someone else dials it back up, and someone dials it down. The temperature ping-pongs from cold to warm and warm to cold. It’s a familiar scene in many , homes with a…

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Best Indoor Air Quality (IAQ) Products for Hot Weather

Is your , home ready for the next summer heat wave? With extended heat waves in the weather forecast across the greater region and other parts of the country, maintaining healthy indoor air quality (IAQ) is crucial. Here’s a guide to the best IAQ products for keeping your home comfortable during an extended heat dome.…

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How Your HVAC System Can Help You Sleep

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Install HVAC Zoning for Ultimate Summer Comfort

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