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HVAC Un At HVAC & Plumbing Unlimited, we strive for perfection when it comes to delivering the best local HVAC and plumbing services in Northern Virginia. Our North American Technician Excellence (NATE) certified staff of HVAC contractors and expert plumbers are trained in the latest technology and techniques. We provide top-quality work in both residential and commercial services.

Whether you need a reliable HVAC company to address your heating needs, or you want to ensure your AC system will protect you from the scorching Virginia summers, we're the team to call.
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Honest Plumbing & HVAC Services in Arlington, Alexandria, Fairfax & the Surrounding Areas. Our team has been proudly offering top-rated residential and commercial heating, cooling, and plumbing services throughout Northern Virginia since 2006. As a family-owned and -operated company, we know that home comfort problems require the utmost attention.
At HVAC & Plumbing Unlimited, we're proud to boast extremely affordable rates. As an added bonus, we offer a variety of money-saving deals to help you save even more! Browse through our current offers and see what discounts you can get on your next heating, cooling, plumbing, or indoor air quality service in Northern Virginia.
Contact HVAC & Plumbing Unlimited to request an appointment for any of our plumbing, heating, cooling, or indoor air quality services in Northern Virginia. You can depend on our NATE-certified and licensed HVAC technicians and expert plumbers to provide you with the quality you deserve. Our trucks are fully equipped with all the necessary tools we need to complete any job and we can work with any make or model appliance.
At HVAC & Plumbing Unlimited, we have only one goal: to achieve perfection. This means providing all of our residential and commercial customers in Northern Virginia with the highest quality heating, cooling, and plumbing services around. Our technicians are all licensed, certified, and insured, and we guarantee they will arrive on time.
Reviews (37)
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Michael Pangia
May 05, 2022
I had HVAC Unlimited install a new Carrier Performance 4-ton system in April 2021 and a second 4-ton system in May 2022. There service was outstanding both times. The lead installer, Mr. Dang, was extremely knowledgable and professional. The sales manager was super responsive and answered all of my questions during the quote phase. The company treated my home with the utmost care. Highly recommend.
Victor Terrazas
May 03, 2022
My HVAC was not blowing cold air at all. So a neighbor in my condo community recommended that I call HVAC Unlimited. I called and a person actually answered the phone. I was able to schedule service for later the same day. Robert, the service tech with HVAC Unlimited, was very customer service oriented and did a great job of getting my AC up and running. The cost for service and repair was very reasonable. I will definitely use them again and highly recommend them.
Edith Thompson
Apr 30, 2022
I was most impressed with the service, punctuality, knowledge and professional workers of your business. I had both my air conditioner and water heater replaced. The work was done in a timely manner and I want to especially commend Randy, Daniel and Starr for their quality work. Five stars for sure! Service: Installation
Genhel Mendenhall
Feb 19, 2022
The owner, John C., his staff, particularly Tee, are wonderful! Our techs, Colin and Lewis, were prompt, called on their way, communicated the issue(s) and solved the problem. We did call around for estimates and they were definitely the best price for value and service. Highly recommend! GM and KM Service: Water heater installation
Jeff Birch - Mvb
Feb 17, 2022
HVAC Unlimited serviced my old HVAC System and installed my new HVAC System. On January 6, 2022 Robert Campbell serviced my heating system due to lack of heat. He was extremely knowledgeable, professional and communicative. Once the issue was resolved, he proactively spoke with his supervisor and they decided not to charge me for the service call; they determined the issue was potentially related to a prior issue. In the future, I will request Robert as he went above and beyond to ensure I had a positive customer experience as well as his exceptional business acumen competence.
Pauline C.
Feb 10, 2022
Our condominium management selected HVAC & Plumbing Unlimited for general maintenance of residents HVAC and Gas Fireplace annual maintenance and I couldn't be more pleased with their professionalism - William was my technician (he had a pleasant/patient demeanor explaining process/answering my questions), prompt exactly on time/efficient/effective, and very clean (including mask and shoe covers). Happy management chose them.
David O.
Jan 21, 2022
I contacted this company because of the great reviews to have my system installed. I had Dylan come to give me an estimate. Very nice guy and imformative on the equiptment. I wasnt happy that he spent over 90 minutes talking and putting estimate in my kitchen table. We couldnt even eat dinner until after 7:30 which is an hour later than normal. I wouldnt mind if the prices he showed me was reasonable.

I gotten price for same equiptment for more than 3k less. If you were to go with this company, I suggest scheduling early or letting them know that you have a prior commitment.
Charlie G.
Dec 30, 2021
HVAC continues to be absolutely top notch. They can always be counted on to service my HVAC (and plumbing) system with experienced, friendly and super competent technicians. They are extremely responsive to urgent requirements, as a contract owner I can get same day service when necessary. I wholeheartedly recommend them. Service: HVAC maintenance
Jena Morrison
Dec 21, 2021
I have been a loyal customer for years. However, today I was very disappointed. Technicians came to move the outdoor unit of my mini-split from where it was attached to the house down to the ground. No wires or anything needed to be disconnected/connected. It took exactly 21 minutes for them to take the unit off its perch and put it on a pad on the ground. I was charged $595.00 for this! I find that a bit outrageous, especially for being such a loyal customer.
Maureen Bellamy
Dec 05, 2021
Staff and technician Joe M. were responsive and accommodating of my schedule mix-up. Joe was efficient, knowledgeable, and helpful, ensuring that my system was running properly. It was reassuring that he took care to cover his shoes in my house and wore his mask properly throughout the entire visit. HVAC Unlimited always sends great professionals!
Pedro Vera
Nov 27, 2021
HVAC & Plumbing Unlimited replaced our ancient chilled/hot water fan coil unit and its piping, thermostat, etc. in our condominium unit. The installers showed up on time, were professional, courteous, tidy and very efficient, they also respected proper social distancing and masking guidelines. They completed their work within their allotted time and walked us through the new equipment and the manuals. The equipment and its related piping and cables were arranged in a neat and orderly fashion. I would happily use this company again.
Andrey Ignatov
Nov 20, 2021
The service appointment of my HVAC unit went really well! The technician was very knowledgeable, diligent and truly customer-oriented. He identified the issue promptly and addressed it. He also made sure that all repairs are done correctly and there are no other issues with the system. Overall great experience with this service appointment and great customer service.
Susan Parsons
Nov 15, 2021
The technician, Robert, arrived promptly on time after calling to say he was on his way. He covered his shoes to protect the carpet - I have dogs so this wasn't necessary but so good of him. He was professional, listened to what I wanted to say about the HVAC, and then got right to work. He was friendly but in a way that did not keep him from his work. When finished, he explained everything clearly. I will definitely call them again for maintenance and any issues I have.
Karen Sherwood
Oct 31, 2021
Bi-annual inspection done through contract with condo management. Although Heating and Air Conditioning unit was found to be in good working order, a small leak in the connecting pipes causing condensation when AC used was found by the certifying technician Robert. He did promise to return to seal the leak that day and true to his word, he returned AFTER he completed his work for the day on the units in the other building.

He was knowledgeable, professional and took extra time to answer my questions. I trust his expertise and appreciate his dedication that he did not wait for the next day - or longer.
Angela Harris
Oct 22, 2021
Very pleased with HVAC Unlimited, my first time using them. My window was 12 to 4. Steve called to say he was on his way and showed up at 12:30. He checked the HVAC system and found no issues. Previously another company had told me that I needed a whole new unit. Steve assured me that everything was fine, that I didn't need to replace anything. It was such a relief to hear that. I will definitely be using HVAC Unlimited again.
Brett Zoot Smith
Oct 14, 2021
These guys are awesome! Very clear communication and on-time across multiple days. Not only were they the lowest of three bids for our project, but I feel like they massively under-promised and over-delivered. We are extremely pleased with their work and strongly recommend them to anyone shopping around! Services: Heating system installation, Boiler installation, AC installation
Will Buckingham
Aug 07, 2021
Great service from Steve today. Super fast response time to minor emergency. Competitive prices on maintenance plans that also include plumbing (smart). Will certainly recommend to neighbors. Check out the A/C sludge that was clogged (image attached)
Sebastian D.
Feb 11, 2021
I'd recommend HVAC & Plumbing Unlimited to ANYONE! Randy came out on short notice and reviewed several work projects we were considering to include fireplace repair, Heat Pump replacement, and humidifier repair to our main HVAC system. He answered all our questions and offered a range of solutions for each. We had all the repairs done, and a team came out within 2 weeks and completed all repairs, to include replacing our 26+ year old heat pump in the attic, and the other repairs in one day!

They did a fantastic job and we now enjoy efficient heat on our third floor and a lit gas fireplace on all the time. Their prices were well under the other quotes, and they do a complete job and list all their tasks and equipment BEFORE they start the work. Sebastian
Karen T.
Sep 09, 2020
I contacted HVAC & Plumbing Unlimited through the form on their website for help with a laundry list of non-emergency plumbing issues. They called me within a few minutes to set up a time for someone to come take a look. Chase arrived on time, was very professional, and did a great job assessing the issues. He was very thorough in explaining what the problems were and my options for fixing them (including detailed cost estimates).

We set up a time for Chase to come back and complete some repairs a few days later. Again, he was on time, thorough, and professional. I also appreciated the covid precautions (mask, booties, etc). I hope I don't need a plumber again anytime soon, but I will definitely call these guys if I do!
Kathi K.
Aug 26, 2020
Chase was prompt, knowledgeable and and courteous. He quickly identified where the leak was coming from in the bathroom, fixed it and verified it was no longer leaking into the apt below. Appreciate him coming the same day I called and giving me a reasonable estimate before he started the job. If I ever have a plumbing issue in the future, I won't hesitate to call them and request Chase.
Biren N.
Jul 22, 2020
4.5- because they moved a couch and didn't put it back (it's a sleeper and very heavy). Looking at the whole picture, I would highly recommend HVAC/ Plumbing Unlimited, they were not originally a company I was going to reach out but glad I did! Their price for the HVAC system plus water was right in our budget! From Dylan to Isabel and the entire install team were top notch! Respectful, responsive (which I didn't get a whole of) and pleasant to deal with!

Plus they did a very fast on scheduling. I had this all set up in a course of one full week! From estimate to final installation (which was today)! The pictures show a whole new world! A+ company that would be added to everyone's list to get quotes if you are in market for a new HVAC system. Just a side note: they deal mostly with Carrier so you could get a very competitive pricing with HVAC and Plumbing Unlimited!
Lawrence B.
Jan 28, 2020
Our mini split heat pump had been down for months. Previous tech company who had diagnosed problem told us it could not get part (temperature sensor) to fix it. Steve diagnosed the same problem and Ned persisted until he found the necessary part. Fixed it in a jiffy -- very reasonable charge. Will certainly use them again!
Jeff S.
Nov 21, 2019
Once again. Ned and his tech Cris came through for us. We had a some what serious issue and they tackled it with the newest technology. Have been using them for 13 yrs and will continue.
Patrick P.
Apr 23, 2019
I have a cape cod style house and have had significant issues cooling the top floor. HVAC unlimited assigned a rep, Dylan, who was knowledgeable, ultimately suggesting a plan that worked! The temperature throughout the house is as even as it had ever been. Highly recommended.
G. L.
Dec 14, 2018
We used HVAC for our plumbing services related to the hot water heater. Robert was awesome and answered all of our questions. He was very knowledgeable and made recommendations that made sense which fixed the problem. Reasonable pricing, on-time arrival, professionalism and great work! We would like to continue using him as our preferred vendor.
T. K.
May 21, 2018
HVAC Unlimited has installed and maintained a unit at my business and has also maintained my home system. Every interaction has been very professional, friendly, and ethical. Our frequent technician Robert C. has been particularly outstanding. I highly recommend this business.
George M.
Nov 10, 2017
Great service! Furnace went out and had to do with debris near the inducer motor. Instead of trying to seek us a new inducer cleared the debris and the furnace worked great. He explained that inducer could go out because of age but said it was running good and no need to replace now. Daniel was very friendly and very clean as well. We are very happy we called HVAC Unlimited. Great company!
Jeanie T.
Oct 21, 2017
I have used many "highly rated" HVAC contractors over the years and am delighted I finally found this group. They are so pro customer. Always on time, fairly priced, no "up selling" of contracts, polite, competent, and take precautions to protect your home while working. I cannot say enough good things about this group.
Benjamin C.
Aug 02, 2016
I recently called HVAC Unlimited for the first time and I was pleased with the AC repair service. They were recommended to me by a friend and I found them to be professional & efficient, quickly completing a repair. I called them second, after another company came out but didn't fix the problem. Next time I need AC service I will be calling them back.
Ethan R.
May 07, 2016
Jermaine Allen from HVAC Unlimited made a thorough check of my cooling system, answered my tough questions and taught me something new about keeping my home comfortable and allergy free. A+ for attitude and knowledge!
Katie W.
Jan 19, 2016
Needed work done in the shower, there was no cold water only hot. They arrived earlier than I was expecting, were courteous, fast workers, and it was completed correctly. Definitely recommend them!
B. N.
Aug 27, 2015
My AC broke and I was given a schedule window of 1-4PM. The tech came at 3:55PM, but on time. He seemed knowledgeable and thorough. In the end, it was a failed $25 capacitor and 1/2 lbs of freon. $399.95. I have small children and the heat was just too much that day; I'm sure that had a lot to do with the inflated price. I didn't have a choice that day but now I do.
Max S.
May 06, 2015
I met Andre when I first signed up with these guys to do my semiannual condo required heating and a/c inspections. He is the best! Super professional, friendly, kind and respectful. He is my goto guy on all HVAC concerns for any and all properties. He is a rock for the company's brand name and customer loyalty. Definetly should be considered for a promotion or raise. 5 stars! Thx again Andre! I'll see you soon!
Ian D.
Jul 04, 2014
I would recommend these guys to anyone. The compressor on our unit died a couple of days ago in the middle of the heat wave. My wife is 9 months pregnant and we couldn't wait to get it fixed. These guys went the extra mile to locate equipment that was needed to get us back up and running within a day and a half. Other companies where quoting at least a week.
Roger S.
May 16, 2014
By far the best service I've had from an HVAC company. Quick, efficient, and reasonably priced. Another company misdiagnosed the cause of a condensation leak and charged me $300 for a non-repair then tried to up-sell me. Fortunately, HVAC Unlimited came in and accurately diagnosed the problem, only charging me for the part and the diagnostic fee with no hassles or sales tactics.
Hank B.
Jan 23, 2013
From the time we bought our house we have enlisted the help of HVAC Unlimited. They gave us a fair, inexpensive analysis of the current heating system in the house we were about to purchase so we could plan for potential expenses in the future. The fee for their independent assessment was less than $100. The young lady who answers the phone always finds a solution that fits my busy schedule and she is always quick to call you back to prepare you for when the tech is going to be there.

All of the techs have come to our home professionally dressed, personable, very smart and well versed in what they are doing, and are very honest and fair. We have gone through many many companies and HVAC Unlimited has been by far the best. We would never trust another company at this point other than HVAC Unlimited. Recently, Ned came to our house to repair our system.

Not only was he super nice and answered my millions of questions, but he was clean, quick, and willing to explain what the issue was to the warranty company- something I consider as him going out of his way to make sure that I as the customre was satisfied. Lastly, for Northern Virginia, I feel as though their rates are more than fair and cost effective! Ned and all the other techs must receive exceptional training- or HVAC's hiring process is just that good at hiring amazing technicians. I couldn't recommend this company more!
Jeremy P.
Jun 02, 2011
I have used this comany for AC repairs a couple of times and I have always been very pleased with their service. The company is easy to contact. They have an answering service for after hours problems, and get right in touch with you first thing in the morning. Every time I have used them, I have received same day service. They may even be able to do emergency repairs in the off hours, but I am not sure about that.

The technicians come within the time window provided, and get right to work. This call ended up being a blown capacitor. The technician diagnosed the problem in only a couple of minutes, got the part out of his truck, installed, and tested it all within half an hour. Everything was very well done, and the technician was very professional and an excellent communicator. I was able to ask questions about the installation and received excellent answers.