Serving Woodbridge, Manassas, Dale City, Gainesville, Manassas Park, Bristow, Nokesville, Prince William County and beyond HVAC Installation Prince William County

Consistently Great Experience Mar 25, 2026

Consistently great experience with Air Treatment Company for HVAC maintenance. The staff and technicians are always respectful, professional, knowledgeable, and show up on time.

Khadijah Alibhai

Beyond My Expectation for Excellent Services Mar 25, 2026

This was the first meeting with Air Treatment personnel that went beyond my expectation for excellent services. Dillon was an HVAC system font of knowledge, explaining in detail the HVAC cleaning system and benefits. No hype, no hard sell, but a common-sense approach to identifying our system and its overall needs.

Frank Biviano

The entire operation is top notch Mar 25, 2026

The entire operation at Air Treatment is top notch. Pricing (paramount), scheduling, timing, technicians—knowledgeable, polite, tidy, informative. Amazing.

Mark Stahl

Very pleased we chose Air Treatment Co. Mar 20, 2026

After many years with one of the largest heating/AC service providers available in the Northern VA area - who got too big to provide good customer service to the little guy - I'm very pleased that we chose the Air Treatment Co. I now have a brand-new set of systems that work beautifully, along with a great team of knowledgeable, skillful, and considerate technicians. Patrick B., one of the team, just provided us with our springtime maintenance; he did a great job and is welcome back anytime! Thanks, Patrick.

Joe Oz

Always on Time and Courteous Mar 17, 2026

We have been using Air Treatment Company for almost 10 years. They took us through the install of gas to the house, when we changed to a gas furnace and water heater. They have been doing our inspections and maintenance since. Are always on time and courteous and don't push to upsell.

elliot norman

Always Great Service Mar 12, 2026

Always a great service from Air Treatment, have had them for 27 years.

Dan Cusimano

Fixed Everything Perfectly Mar 9, 2026

Our heat pump stopped working and Air Treatment sent their very experienced tech over to resolve the issues. He spent much time diagnosing the problem and fixed all of it perfectly and cleaned everything up before leaving. He also shared with us very valuable information to help us in the future. We really appreciated all his efforts and suggestions. Thanks so much! We really appreciate it!

Marie Potter

I Highly Recommend Air Treatment Heating & Cooling Mar 4, 2026

I highly recommend Air Treatment Heating & Cooling. The staff and technicians are customer-focused, knowledgeable, professional, and customer-friendly. I researched companies and found Air Treatment Heating & Cooling to provide the BEST cost, system, and overall package for my HVAC unit. They made the entire process easy from start to finish. Will be a long-time customer and hope you are, too!

Paula Ewen

Very Pleased With the Service Mar 3, 2026

Steve from Air Treatment and Heating & Cooling came on time and was very courteous when entering, placed shoe covers on, and went straight to work servicing my unit in an efficient and timely manner. I was very pleased with the service. I pay for this service for two visits a year and it is very reasonable.

S AP Martin

Very Pleased With the Service Mar 3, 2026

Steve from Air Treatment and Heating & Cooling came on time and was very courteous when entering, placed shoe covers on, and went straight to work servicing my unit in an efficient and timely manner. I was very pleased with the service. I pay for this service for two visits a year, and it is very reasonable.

Squad 137

Absolutely love their service Feb 23, 2026

We have been using this company for many years - absolutely love their service! They are courteous, knowledgeable, responsive and a pleasure to have them doing our regular maintenance. Thank you, we appreciate you!

Tasneem Nahar

Fantastic Service Feb 23, 2026

Fantastic service. Steve was great. These are very trustworthy people. I’m glad that I was recommended to them.

Payam Vahid

High Quality Service and Support Feb 7, 2026

They offer high quality service, professional technicians, and outstanding customer support. I've tried other providers, but Air Treatment has consistently been my preferred choice!

Joe Owner

The Experience Was Excellent Feb 6, 2026

My wife found Air Treatment Heating and Cooling when we needed a new HVAC system installed in our condo, and the experience was excellent. Shortly after, I had an urgent need at our single-family home to inspect the system and rebalance airflow. I spoke with Dan (the owner), and it was genuinely refreshing to deal with someone who clearly cares and takes pride in the work. Dan sent Mike out, and Mike was fantastic—easy to talk to, knowledgeable, and he got everything dialed in. I even learned we have three dampers I didn’t know existed. 🤷‍♂️ It’s a real pleasure working with a company that’s owner-run and service-focused—not the private-equity “roll-up” model.

Kafia Sharmarke

Service Has Been Wonderful Feb 2, 2026

I continued with Air Treatment Heating and AC service since we bought the house 20+ years ago. The service has been wonderful with all the technicians we've had over the years. My units (1 furnace and 1 AC) have lasted their full life thanks to the annual service provided by Air Treatment. Highly recommend them!

Catherine

Air Treatment Always Provides Great Service Jan 19, 2026

Air Treatment always provides a great service and their technicians are very polite, friendly, and competent. I had my heating maintenance check this morning and Steve was prompt, thorough, and courteous. I recommend Air Treatment to all my friends.

Hamid Eskandary

I can't say enough good things Jan 6, 2026

I can’t say enough good things about this company and specifically Mike. Other do so is used to take an hour to do the yearly maintenance visit. Mike takes at least 2.5 hours and last summer his visit was around 3.5 hours cleaning my AC unit outside, which resulted in a 3 degree reduction in the temperature and the system now runs much more efficiently! He found some wiring mistakes from the previous contractor that he fixed as well. Overall they are honest, very qualified and knowledgeable, fair priced and very professional. Would recommend them 100%. I can’t say enough good things about this company, and especially about Mike. Other companies usually take about an hour for a yearly maintenance visit, but Mike spends at least 2.5 hours. Last summer, his visit was closer to 3.5 hours because he thoroughly cleaned my outdoor AC unit, which resulted in a 3-degree temperature reduction and a system that now runs much more efficiently. He also identified and corrected wiring mistakes left by a previous contractor. Overall, this company is honest, highly qualified and knowledgeable, fairly priced, and extremely professional. I would recommend them 100% without hesitation.

Roula Chidiac

Always a Great Experience Jan 2, 2026

Always a great experience with ATH&C! We trust the techs to be honest, friendly and do excellent work. Highly recommend!

Mark Oldfield

Tremendously Satisfied for 5 Years Jan 2, 2026

I’ve been working with Air Treatment Company for about 5 years, and I’ve always been tremendously satisfied with their services. Their technicians do a superb job! I had my winter inspection today, and Lilly was great! She was clear and carefully explained what was going on with my unit.

Will Gunn

So happy we saw Air Treatment advertised Dec 17, 2025

Coldest week before the 2025 winter kicks in and a screeching sound came from the heater. We were scared that it was no longer working. Steve came and was so kind & just found a filter that had torn. This is definitely a company that came highly recommended by Jay’s Wintry Mix & so happy that we saw Air Treatment Heating & Cooling advertised! Thank you.

Sandy N Mike Dewey

No Aggressive Sales, Just Friendly Competence Dec 13, 2025

A different HVAC company inspected my 7-year-old HVAC and claimed to have found a bunch of catastrophic flaws and tried to pressure me into buying a new one immediately for what felt like a high price. I called Air Treatment for a free second opinion. They called a few days out to confirm scheduling and request some additional details. The day of, the technician, Steve, was awesome! He arrived on time and was super friendly, patient, and professional. He did a careful inspection of everything, with me peppering him with questions over his shoulder, and patiently explaining what he was looking at and providing some DIY maintenance tips. He ultimately concluded the system was in great shape and that "somebody was trying to sell us something." He also had some useful practical recommendations for improving the temperature and airflow in our home. No aggressive sales; just friendly competence. As someone that doesn't know anything about HVACs, it means a lot to have a company I can trust!

Alexey Shiklomanov

They did a fantastic job Dec 10, 2025

They did a fantastic job and they were by a significant margin less expensive than the five other bids I got for the same top-of-the-line equipment.

Michael Collins

I would highly recommend this company Dec 9, 2025

I was looking to replace my entire HVAC system and Air Treatment was one of the 5 HVAC companies I reviewed (all highly rated). From the start, I was impressed. Chris Hunt, the sales representative, was professional and thorough in providing the options for my new system. Chris also provided the estimates in a timely manner and was very responsive to my many follow-on questions. The quotes he provided were competitive (or lower) with the other companies I interviewed. Given their reputation, Chris's professional and responsive support, competitive pricing, and their other add-ons (longer labor warranty and 2-year free maintenance), I chose to go with Air Treatment. After signing the contract, we set up a time for the installation, which I had to later change due to a conflict. They were very accommodating with the change. Also, they were very accommodating when I had to ask them to pause after they removed the old system so that the duct cleaning company could conduct mold remediation in the ductwork. The two installers, Brendan and Andres, were very pleasant and professional and patiently took the time to answer any questions I had. The final product looks great and operates well. During the installation, one of the owners, Dan, came by to deliver a part. I had the opportunity to speak with him. Very friendly and helpful with some questions I had. Last item: I had to communicate with the office staff several times (to arrange for an installation date, the pause for the mold remediation, and to discuss some county inspection items). In each case, the people I spoke with were very friendly and accommodating. I would highly recommend this company to anyone who is looking for an HVAC installation or service.

Rob F

The whole process was efficient and professional. Dec 9, 2025

Trevor alerted us to a problem with the furnace and recommended replacement. Phil came out and gave us a detailed proposal. Ryan and Phu installed the new system. The whole process was efficient and professional.

David Smith

ATC spent the most time Dec 9, 2025

Got 4 estimates for replacing our HVAC with a newer heat pump. ATC spent the most time and offered the most reasonable suggestions for improvements.

Chip Larson

I have no hesitation in recommending these good people. Dec 8, 2025

We lost our heat late on a Friday afternoon. The technician came out after hours, about 5:30. He worked quite methodically and diligently until he was able to get our heat back on. He also had a nice friendly disposition and I enjoyed his sense of humor. It would’ve been a very cold weekend without his help. I have no hesitation in recommending these good people.

Michael McDermott

Very knowledgeable and helpful technicians. Dec 8, 2025

I had an AC unit and a heat pump installed in the last two years. All the Air Treatment technicians I interacted with were very knowledgeable and helpful.

D Z

Consistently the best. Dec 4, 2025

Consistently the best. The service from the tech to the customer service. Keep up the amazing work, team!

Chris and Melinda Gren

What an outstanding, technically competent, polite and efficient young gent! Dec 1, 2025

"JP" just completed my bi-annual HVAC inspection ~ what an outstanding, technically competent, polite and efficient young gent! Kudos and compliments to the Air Treatment team 👏 👍 👌!!

Birt Webley

I couldn’t be happier with the service. Oct 31, 2025

I recently had additional HVAC vents installed in my basement and couldn’t be happier with the service. The technicians arrived right on time and were extremely polite and professional throughout the entire process. They completed the installation quickly without cutting corners, and their attention to detail was impressive. What stood out most was that, after finishing the work, they took the time to walk me through everything they had done and answered all my questions. It was reassuring to see the quality of the installation firsthand. Overall, it was a great experience—fast, courteous, and thorough. Highly recommend!

Richard Miller