HVAC & Plumbing Unlimited
HVAC contractor in Lorton, VA.
In HVAC & Plumbing Unlimited's own words
Since 2006, HVAC & Plumbing Unlimited has been Northern Virginia’s trusted source for heating, air conditioning, and plumbing services, serving Fairfax, Woodbridge, Arlington, Alexandria, Prince William County, and surrounding areas. Our NATE-certified technicians and licensed, insured plumbers bring decades of experience and advanced training to every job. We handle AC repair and installation, furnace repair and replacement, boilers, heat pumps, ductless mini-splits, indoor air quality solutions, and seasonal maintenance tailored to Virginia’s humid summers and cold winters. Our plumbing team provides drain cleaning, water heater service, leak detection, sump pumps, and 24/7 emergency plumbing, all backed by a 100% satisfaction guarantee.
- Trade
- HVAC contractor
- Business address
- 9704 Gunston Cove Rd A, Lorton, VA 22079
- Telephone
- (703) 455-6000
- Website
- hvac-unlimited.com
- Hours
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- Monday7:00 am - 5:00 pm
- Tuesday7:00 am - 5:00 pm
- Wednesday7:00 am - 5:00 pm
- Thursday7:00 am - 5:00 pm
- Friday7:00 am - 5:00 pm
- Saturday7:00 am - 5:00 pm
- Sunday7:00 am - 5:00 pm
From the business's Google listing, checked Oct 2026
- Register
- VA register
Recorded as supplied and as found in public sources. This register makes no credential or quality claim about any business; check license status with the state board.
Google Reviews
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After 31 years, the cartridge in our master bathroom show finally gave out. Had to shut down water to the whole house - and on a Saturday (of course)!!!! Kevin answered our emergency call and came out within the hour. Patient, professional, laughing at our nonsense comments, he efficently got us through to having water again. We have relied on HVAC for more than 20 years. The techs like Kevin are the reason!
Carol R.
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Amazing!! Life savior! After being told our fan motor was broken, out of stock, and would take 2+ months to get, we called to get a second opinion. Philip came out, diagnosed the actual issue, left to get the necessary (and much less pricey) part, and came back and installed the same day. After days of no AC with a baby, we cannot sing his praises enough!
Leah G.
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** update: the manger resolved the issue and since then they have been great. I have re I mended them to others and they are satisfied as well. ** I have been using this company for several years now, but this time, I had to call at least 3 times to get the exact time they’ll be at the property since it is not an owner occupied property. Then the had me to drive there and wait and wait…. The woman who I talked with said she is the dispatch manager and that they didn’t know it was not an owner occupied property. Hmmmm. The dispatch manger was rude and completely clueless. Even when I had told her on my first phone call that I do not live there and that I need a more specific time so that arrange and commute to the property. Completely unprofessional and unacceptable! They most likely lose my future business and referrals.
Kathy P.
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I’ve been using HVAC Unlimited for years. They’re always on time and always professional.
Christopher W.
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I called HVAC Unlimited first to come out and repair my air conditioner leak. They came out stuck a gauge on it and told me that I had a Leak $110. It took all of 5 minutes. HVAC United then stated it was another $500 to look for the leak. Not to fix, but look.
Pharzd
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Had the pleasure to work with your company and Joshua Johnson. He was legit and honest and did a fantastic job. Going to refer you guys out quite a bit.
Tim T.
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Highly recommend! 10 🌟 Friendly, punctual and honest. The best.
D M.
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Joe Martin is an outstanding HVAC tech and the company is very responsive and follows up immediately. Joe has fixed problems techs from other companies could not fix. He is a real professional. They are my “go to” company and I always request Joe to do the work! Great company and staff!! 5 stars!!👏
Jan
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The team was great too to bottom. Each phase of the service was laid out. Everything was clearly explained as well as informative. When it was time for the removal an install of the air conditioning and heating it was flawless. The crew was truly professional. They were quiet and quick. Any questions were answered and explained with ease. Over all just great service.
William E.
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As always, Jalil was prompt, courteous and most of all communicated, both, before and after addressing the issues! Thanks Jalil!
Altaf M.
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I had wonderful, emergency service from HVAC on a day of 102 degrees! Good communication, fair prices, and knowledgeable technicians with no pressure.
Catherine P.
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I was totally impressed with the professionalism and the knowledge of Mr Martin the tech that serviced my AC unit.
Mark K.
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Highly recommend them. We have been using them for years
We !.
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Kevin was efficient at fixing our disposal, clear communication about process and prices, great service and advice for future care.
Felicia H.
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Service was fantastic! They were able to diagnose the issue, get the warranty part and install the part in the same day.
Blake G.
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The team was very professional and proactive in communicating their service trip and got to quick resolution for our HVAC issue. I would use this team again!
Yuriko H.
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Great work and great communication.
Ed E.
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Very professional service! Highly recommend!
Smart C.
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The technician was on time and got right to work. He went over what he found, and sent me a detailed report
Dennis F.
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Maintenance on cooling system Part of yearly contract that covers cooling and heating Josh the service person, was great, very knowledgeable, friendly and did a very thorough job.
Sue D.
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Very courteous and swift
Jason E.
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HVAC Unlimited is just that ... unlimited ... in skill, courtesy and care. I happen to be a Realtor and discovered them a very long time ago when a client's A/C died 3 days prior to closing their sale. They got right on it and replaced the entire system in time for closing without delay! From that day on, I've used them personally and recommended them to all my clients. I've never had or received a complaint. You won't be disappointed.
Patsy F.
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Great service and very professional. Our tech was philip , and not only is he very knowledgeable, he is also very kind and considerate.
Kathy W.
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Professional and on time.
Scott C.
About HVAC & Plumbing Unlimited
HVAC and plumbing services in Lorton
Since 2006, HVAC & Plumbing Unlimited has provided heating, air conditioning, and plumbing solutions for residential and commercial clients. The company says it specializes in air conditioning repair and installation, furnace replacement, boilers, and heat pumps. Its service list also includes ductless mini-splits, indoor air quality solutions, and seasonal maintenance. For plumbing needs, the company describes its capabilities as covering drain cleaning, water heater service, leak detection, and sump pumps.
Lorton homes rely on utility gas for heating in 56 percent of cases, per the American Community Survey. The company provides 24/7 emergency plumbing and HVAC repair to address urgent issues. The business operates seven days a week from 7:00 am to 5:00 pm.
Professional credentials and ratings
Reviewers frequently mention the promptness of technicians and the ability to resolve complex diagnostic issues. Some feedback highlights successful emergency repairs during high-temperature days, while others note the professionalism of the staff. The company maintains a 4.9 rating based on 930 reviews.
The company names its technicians as NATE-certified and identifies itself as a Carrier Factory Authorized Dealer. It states that its work is backed by a 100 percent satisfaction guarantee. Financing is also available for its services.
Service coverage and technical details
In addition to HVAC and plumbing, the company provides air ductwork services. Its owner, John Cunningham, has over 36 years of experience in the industry, according to the company. The business serves various areas including Fairfax, Woodbridge, Arlington, and Alexandria.
NATE-certified technicians and licensed, insured plumbers perform the work. The company states it services all major makes and models of equipment.
Services, brands and warranty details come from the company's own website. Ratings, hours and reviews come from Google. Town figures come from the US Census and NOAA.
More HVAC contractors in Lorton
About Lorton
| Population | 20,991 (2024) |
|---|---|
| County | Fairfax County |
| Average yearly snowfall | 15.9 inches |
| Heating degree days | 4,931 |
| Most common heating fuel | Utility gas |
Sources: U.S. Census Bureau. NOAA U.S. Climate Normals 1991-2020.