Serving Ashburn, Leesburg, Loudoun County and beyond
AC Company Loudoun County
As a trusted AC company, we at Air Treatment Heating & Cooling pride ourselves on delivering exceptional services that keep you cool and comfortable in any season. Our team of seasoned professionals is well-versed in every aspect of AC care, from routine maintenance to comprehensive repairs and efficient installations. We understand that a reliable cooling system is more than a convenience—it's a necessity. That's why Air Treatment Heating & Cooling is committed to ensuring your AC runs smoothly, with a focus on longevity, air quality, and energy-saving practices. Choosing Air Treatment Heating & Cooling means opting for a hassle-free experience with an air conditioning company that puts your needs first.
Reach out to our air conditioning company at (703) 270-0881 for unparalleled service and support.
Loudoun County AC Company Call for More Information Today!703-270-0881
Lilly expertly diagnosed and fixed the problem quickly.
Susan Huff
J"This company is outstanding."
Ben is my go-to technician and provides amazing service.
John Rubino
A"Couldn't Be More Pleased"
System works perfectly. I couldn’t be more pleased.
Andrew Blevins
B"Very courteous and responsive"
The tech spent over an hour checking for issues
Bill Yun
N"Very Satisfied"
He explained to me what he had done and the state of my system.
Nancy Turaj
N"Pricing was phenomenal"
Great and hard work installing a good new HVAC system. The pricing was phenomenal.
Naman Molri
K"Fantastic AC Inspection"
Dylan did a fantastic job inspecting my AC system.
Kaushik Krishnan
M"Problem Solved!"
Air Treatment diagnosed an issue that two others couldn't.
Michael Sweet
b"Extremely knowledgeable service"
Mike was extremely knowledgeable and took the time to show me and explain things to me.
beanienva
S"Would highly recommend"
Technicians are always very knowledgeable, offering suggestions without being pushy.
Stephen Raddie
S"Great Company & Staff!"
Great at proactively helping me get service scheduled.
Stephen Raddie
A"Nothing short of FANTASTIC!"
The technician was the most honest HVAC person I've ever dealt with.
Andy Karabelas
P"Very reasonable price on new HVAC install."
Their techs have extensive knowledge and will ensure all solutions are covered!
Paul Downey
D"Exceptional Service"
Air Treatment did such a great job.
Daniel Pines
L"A Great Company"
A very professional team installed our new hot water tank. Dylan was also very knowledgeable about the product.
Linda Henry
J"Nothing but kudos for the entire team"
Kyle knew of this phenomenon and explained in great detail how this occurrence happened.
Jcp XYZT5
C"On time, professional, and friendly."
Technician was on time, professional, and friendly.
Clayton Roberts
P"Very impressed with the employee"
Runs great. Very impressed with the employee.
Patrick Danford
M"Best HVAC company I've ever had"
Air Treatment Company is a 5-star business. Everything they do is done the right way. Best HVAC company I've ever had.
Michael Yurewicz
D"Happy with the professional techs"
Happy with the professional techs and the services provided.
DAK
J"Excellent service!"
The serviceman fixed it and cleaned the insides a bit.
Josh Smith
L"Recommend them highly"
I've purchased 2 new systems and they perform maintenance checks. Technicians are always friendly and knowledgeable.
Lucy Thomas
r"Outstanding Service"
They are competent, very knowledgeable, friendly and timely.
robert zarzar
P"Superior Service for 20 Years"
Service people are courteous, knowledgeable, on time.
Patti
A"Great Experience with Mike"
Scheduled a diagnostic visit, had a great experience with Mike. Super knowledgeable with great suggestions.
Abasin Safi
D"Very professional technician"
He arrived on time and was very professional.
Deborah Maclean
K"Outstanding Company Service"
Outstanding company with knowledgeable professionals.
Kevin Vaughey
S"Response is quick"
They handle the problem efficiently and take the time to go over all concerns.
Steve Miller
D"Great Service"
Great service. Very professional! Will continue to use Air Treatment!
Donna Dykes
Z"Efficient, Clear, and Professional"
Chris was very efficient, clear, and professional.
ZENON SLAWINSKI
Excellent Service
Excellent service. I emailed the company in the evening (my A/C stopped working), and they answered first thing in the morning and came to my house at a convenient time for me that day. Lilly Castillon expertly diagnosed and fixed the problem quickly, and my A/C was working again. She was very professional, informative, and highly skilled!
Susan Huff
This company is outstanding.
This company is outstanding. Not many companies bill monthly, but Air Treatment Company (ATC) does. Ben is my go-to technician. I reserve him now every time, and he provides amazing service. Very happy with ATC. Great company.
John Rubino
Couldn't Be More Pleased
Working with Air Treatment was a great experience. The office staff was polite, professional, and promptly returned my calls and kept me informed about the product wait times and the installer’s ETA on the day of. The sales rep was by far the most knowledgeable of the various companies we got quotes from. The quote and pitch were very low pressure, which was appreciated. Pricing was by far the most straightforward and very competitive, and the recommended products were top of the line and in line with my existing system and expressed goals. The installation went smoothly and professionally. The installers were careful and followed through with protecting the yard as requested. System works perfectly. I couldn’t be more pleased. Do your due diligence and get additional quotes but you will very likely settle on Air Treatment.
Andrew Blevins
Very courteous and responsive
Very courteous and responsive. I called for a second opinion and the tech spent over an hour going through the system checking for issues, and didn't even charge me for their effort. I will definitely go with them for future services.
Bill Yun
Very Satisfied
The technician, Chris, arrived well within the window I was given. He was careful with my house. He was friendly and efficient. And he explained to me what he had done and the state of my system. Very satisfied. Air Treatment installed my system 10 years ago.
Nancy Turaj
Pricing was phenomenal
Great and hard work installing a good new HVAC system. Also diagnosed problems quickly as they came and accommodated our needs. The pricing was also phenomenal and they worked with us to get the system we wanted at a good cost.
Naman Molri
Fantastic AC Inspection
Dylan did a fantastic job inspecting my AC system. He provided so many useful recommendations which, being a first-time homeowner, I had no idea about. I will definitely be using their service in the future!
Kaushik Krishnan
Problem Solved!
Air Treatment was able to diagnose an issue with our heat pump that two other companies were unable to identify. Problem solved!
Michael Sweet
Extremely knowledgeable service
Had to call late on a Monday afternoon as heat pump kept blowing fuses. Mike came out the next day to diagnose a faulty connection in the disconnect box for the air handler. Mike was extremely knowledgeable and took the time to show me and explain things to me. He also checked my Ecobee smart thermostat and talked to me about the air filters I am using. I am very appreciative of this excellent service! Will continue my yearly service contract with Air Treatment Heating & Cooling.
beanienva
Would highly recommend
Great company & staff! Air Treatment has serviced and replaced the HVAC systems in my home for years. The office staff is great at proactively helping me get service scheduled and the technicians are always very knowledgeable, offering suggestions without being pushy or trying to oversell me. Would highly recommend to anyone for annual maintenance or emergency calls.
Stephen Raddie
Great Company & Staff!
Great Company & Staff! Air Treatment has serviced and replaced the HVAC systems in my home for years. The office staff is great at proactively helping me get service scheduled, and the technicians are always very knowledgeable, offering suggestions without being pushy or trying to oversell me. Would highly recommend to anyone for annual maintenance or emergency calls.
Stephen Raddie
Nothing short of FANTASTIC!
This company is nothing short of FANTASTIC! The technician was the most honest HVAC person I've ever dealt with. They have gained my trust and a lifelong customer. I would highly recommend them to any and all who need their units serviced. Eric was my technician, and he was a class act.
Andy Karabelas
Very reasonable price on new HVAC install.
Very reasonable price on new HVAC install. They cover all the details and are very easy to work with as well as always on time. Their techs have extensive knowledge and will make sure all solutions are covered!
Paul Downey
Exceptional Service
I post very infrequently, but Air Treatment did such a great job that I felt it was important to support such exceptional service. They very quickly inspected our furnace when it had a problem, and offered reasonable pricing when it was clear the furnace needed to be replaced (they even price-matched when we found another service that quoted us a lower number). They arrived precisely on time for both the inspection and installation—which, as you know, is highly unusual these days—and were incredibly professional. To top it off, across the board they were some of the nicest people we have ever met in the service industry. If you ever have to replace your furnace, I would highly recommend Air Treatment Heating and Cooling!
Daniel Pines
A Great Company
A very professional team installed our new hot water tank. Went above and beyond, even repositioning some of the pipes! Dylan Thornton was also very knowledgeable about the product we were looking for. We also have our heating and air conditioning through them. A great company.
Linda Henry
Nothing but kudos for the entire team
My hot water heater pilot light went out, and I couldn't get it restarted, so I turned off the gas. I received immediate service the next day (on my voice mail message late the night before, I didn't designate this issue as an emergency), and Kyle stopped by later in the day. It seems that the high winds we were having at 50 mph+ blew the pilot light out. Kyle knew of this phenomenon and explained in great detail how this occurrence happened. I was very appreciative of the expertise and squeezing me in on a Friday. Nothing but kudos for the entire team at Air Treatment Heating and Cooling of Vienna, VA!
Jcp XYZT5
On time, professional, and friendly.
Technician was on time, professional, and friendly. She was efficient with her inspection. I have no reason not to recommend this company for your HVAC needs.
Clayton Roberts
Very impressed with the employee
Had our unit for 2 years. Runs great. Very impressed with the employee that installed and served the furnace.
Patrick Danford
Best HVAC company I've ever had
Air Treatment Company is a 5-star business. Everything they do is done the right way. Best HVAC company I've ever had.
Michael Yurewicz
Happy with the professional techs
Installed new system and followed up with seasonal services that caught issues from happening. Happy with the professional techs that came and the services provided. Would use them again is the bottom line.
DAK
Excellent service!
Excellent service! A small part in the furnace needed replacing. The serviceman fixed it and cleaned the insides a bit, and we were back in business! The cost was very reasonable, too. Thank you!
Josh Smith
Recommend them highly
I have been an Air Treatment customer for 28 years, and they always provide a great experience. I've purchased 2 new systems over the years, and they come out twice a year to perform maintenance checks. The technicians are always friendly and very knowledgeable. I recommend them highly.
Lucy Thomas
Outstanding Service
Outstanding service is the Air Treatment (AT) hallmark. Our system was installed by another company. However, they did not follow up on problems which arose. We asked AT to check their work and they came up with solutions to the problems. They pointed out that the system was not installed properly. That was 4 years ago and they've provided great service twice a year to our system ever since. They are competent, very knowledgeable, friendly and timely. A Great Company.
robert zarzar
Superior Service for 20 Years
Air Treatment Company has provided superior service to my family for about 20 years at both our current and former home. The service people are courteous, knowledgeable, on time, and ensure the best quality of work. Office staff is always helpful and responsive, and when we did have a problem, everyone—including technicians, managers, and owners—worked together to provide a very satisfactory resolution. We are happy and loyal customers.
Patti
Great Experience with Mike
I scheduled a diagnostic/maintenance visit and had a great experience with Mike. Super knowledgeable and gave me great suggestions.
Scheduling was easy, and the people I spoke to were very friendly.
This is for the business Air Treatment.
Abasin Safi
Very professional technician
I have a service contract with Air Treatment Heating and Cooling. For my winter service, my technician was Dee Dordevic. He arrived on time and was very professional. While he was servicing my furnace, he explained everything to me and gave me a few good suggestions. He was patient and took his time explaining everything to me and gave me ideas on how to make it last longer. In the future, I will always use him as my technician.
Deborah Maclean
Outstanding Company Service
What an outstanding company, from calling in for service or scheduling an appointment to a tech arriving on site and servicing your equipment. These folks know customer service and are very knowledgeable professionals in all areas of their business. Give them a try; you will not be disappointed. We have been with them for over 10 years.
Kevin Vaughey
Response is quick
Air Treatment response is quick. While my unit is under warranty, they handle the problem very efficiently and take the time to go over any and all concerns I may have, which is minimal.
Steve Miller
Great Service
Great service. Very professional! Will continue to use Air Treatment!
Donna Dykes
Efficient, Clear, and Professional
Chris was very efficient, clear, and professional. These guys have a great team.
Free 2nd Opinion!
Breathe Easy with Air Treatment Company!
Are you struggling with heating or cooling issues at home? Don’t sweat it! At Air Treatment Company, we’ve got your back with our FREE second Opinion offer!
Claim Your FREE Second Opinion Today!
703-270-0881
*Show us your service ticket to claim your free second opinion offer and we’ll compare apples to apples. Must be mentioned at time of booking appointment.
Download
$350 OFF
New HVAC Installation
Take $350 off the cost of installing a brand new HVAC System from Air Treatment.
Cannot be combined with other specials. One coupon per unit. Exclusions may apply.
Valid
May 1, 2025
- Jul 31, 2025
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Why Choose Air Treatment Heating & Cooling
At Air Treatment Heating & Cooling, we have been fortifying homes across Northern Virginia for over 50 years. Our mission is to enhance comfort and safety, providing you with confidence in our thorough heating, cooling, and air quality solutions. Our team is ready to serve with integrity and a commitment to exceptional service.
Why Choose Us:
Prompt, reliable service with transparency and upfront quotes
Over 50 years of trusted service in Northern Virginia
Respectful of your home with clean workspaces and shoe covers
Over 50 Years of Expertise
Providing top HVAC services since 1973.
NATE-Certified Technicians
Skill and knowledge you can trust.
Fast and Reliable Service
Quick response and upfront quotes.
Tailored HVAC Solutions
Custom services for your unique needs.
Meet Our Expert Air Treatment Team
At Air Treatment Heating & Cooling, we are dedicated to enhancing comfort and safety in homes across Northern Virginia, including Fairfax County. With over 50 years of experience, our expert technicians deliver fast, friendly service, ensuring every job is done right the first time. Our reputation for prompt, reliable service is backed by our NATE-certified technicians who provide technical excellence tailored to your specific needs. We pride ourselves on transparency, offering upfront quotes to build trust and deliver unmatched quality. Our commitment to respecting your home through measures like wearing shoe covers and maintaining clean workspaces sets us apart. Count on us for premier heating, cooling, and indoor air quality solutions that bring peace of mind and comfort to your home.
Can heat pump water heaters work in cold climates?
Yes, they can work in cold climates but may require some additional considerations. In colder climates, it’s essential to install the heat pump in a space that remains relatively warm or use a model designed to operate efficiently at lower temperatures.
Can I install a heat pump water heater myself?
While possible, it is not recommended to install a heat pump water heater yourself unless you have plumbing and electrical expertise. Professional installation ensures safety, code compliance, and optimal performance.
Do heat pump water heaters require maintenance?
Yes, like all water heaters, heat pump water heaters benefit from regular maintenance. This includes checking the air filters, cleaning the coils, and ensuring the system is functioning efficiently—usually done annually or per manufacturer's guidelines.
Are heat pump water heaters noisy?
Heat pump water heaters typically make more noise than traditional water heaters due to the compressor and moving parts. However, the noise level is usually comparable to that of a refrigerator and is considered moderate.
Free 2nd Opinion! Breathe Easy with Air Treatment Company!
Baylee Alarcon Client Services Consultant
Crystal Young Client Services Consultant
Dan Simpson Owner
Jim Griffin Owner
Philip Oliver Owner
Cameron Young Service Manager
Justin Hopeck Comfort Consultant
Lisa Rudolph Install Coordinator
Sarah Stock Office Manager
Sumaiya Aslam Client Services Consultant
Susan Felgar Dispatcher
Taylor Delgado Marketing Manager
Phu Do Lead Install Technician
Ted Kim Lead Install Technician
Van Luong Lead Install Technician.2407301114550.jpg)
Andres Dell'Agostino Install Technician
Trung Nguyen Install Technician
Chris Hunt Service Technician
Dee Dordevic Service Technician
Dylan Thornton Service Technician
JP Poczatek Service Technician
Kyle Sackett Service Technician
Lilly Castillon Service Technician
Mike McEwan Service Technician
Trevor McMillen Service Technician