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Air Conditioning and Heating Services in Annandale, VA

When you need HVAC services in Annandale, look no further than United Air Temp. We’ve provided exceptional service and products for over 90 years! Our team of highly trained HVAC technicians and plumbers have the knowledge and tools to keep your home comfortable year-round.

We want your home to operate efficiently and affordably for generations to come.

Contact us online to learn more about our HVAC services in Annandale.

24/7 Heating & AC Services in Annandale

You depend on your HVAC system to keep you and your family comfortable. Our technicians offer dependable HVAC services, from AC repair to heat pump replacement and more. Count on United Air Temp for:

We service and maintain a variety of HVAC systems, including:

Contact United Air Temp for all your heating and cooling needs.

Request Service Get started by filling out a service request form or by giving us a call.
(202) 796-7990

Indoor Air Quality Solutions

Indoor air quality is more important than ever. The EPA (Environmental Protection Agency) says the average person spends 90% of their time indoors, making clean air necessary for overall health.

United Air Temp offers custom indoor air quality solutions, including: 

Electrical Services

In addition to top-quality HVAC services, our team is ready to meet your electrical service needs. You can rely on our experts for: 

Why Choose Us?

Our team has served the DC area for over 90 years. Over the years, we’ve become a leading choice for electrical and HVAC services in the DC metro area. When you contact us, you can expect:

  • Upfront pricing
  • Trained technicians
  • Quality work
  • On-time scheduling
  • And more

Let us ensure you stay comfortable in your home all year. Contact United Air Temp to book an appointment.

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Leader in Home Comfort Since 1931Get Your Free Estimate

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Mike S

I appreciate the service, care, and timely manner put into the service I needed to have done. Although I had a tough job to complete these guys worked together and got the job done.

Carolyn M.

United Air Temps recently serviced my heating units and has serviced my AC units regularly for a few years. The prices are so reasonable.

Devin C.

Our water heater broke down and Edson had it replaced in less than 24hrs. We had a subsequent HVAC issue and he sent a tech to repair it minutes after I submitted the request. We are so grateful for the services UAT has provided.

Brenda M.

I have been a United Air Temp customer for ten years and they never fail to give me prompt, reliable, HONEST service. Friendly, knowledgeable, and mindful of my time.

Mike S

I appreciate the service, care, and timely manner put into the service I needed to have done. Although I had a tough job to complete these guys worked together and got the job done.

Carolyn M.

United Air Temps recently serviced my heating units and has serviced my AC units regularly for a few years. The prices are so reasonable.

Devin C.

Our water heater broke down and Edson had it replaced in less than 24hrs. We had a subsequent HVAC issue and he sent a tech to repair it minutes after I submitted the request. We are so grateful for the services UAT has provided.

Brenda M.

I have been a United Air Temp customer for ten years and they never fail to give me prompt, reliable, HONEST service. Friendly, knowledgeable, and mindful of my time.

Mike S

I appreciate the service, care, and timely manner put into the service I needed to have done. Although I had a tough job to complete these guys worked together and got the job done.

Carolyn M.

United Air Temps recently serviced my heating units and has serviced my AC units regularly for a few years. The prices are so reasonable.

Devin C.

Our water heater broke down and Edson had it replaced in less than 24hrs. We had a subsequent HVAC issue and he sent a tech to repair it minutes after I submitted the request. We are so grateful for the services UAT has provided.

Brenda M.

I have been a United Air Temp customer for ten years and they never fail to give me prompt, reliable, HONEST service. Friendly, knowledgeable, and mindful of my time.

Mike S

I appreciate the service, care, and timely manner put into the service I needed to have done. Although I had a tough job to complete these guys worked together and got the job done.

Carolyn M.

United Air Temps recently serviced my heating units and has serviced my AC units regularly for a few years. The prices are so reasonable.

Devin C.

Our water heater broke down and Edson had it replaced in less than 24hrs. We had a subsequent HVAC issue and he sent a tech to repair it minutes after I submitted the request. We are so grateful for the services UAT has provided.

Brenda M.

I have been a United Air Temp customer for ten years and they never fail to give me prompt, reliable, HONEST service. Friendly, knowledgeable, and mindful of my time.

Mike S

I appreciate the service, care, and timely manner put into the service I needed to have done. Although I had a tough job to complete these guys worked together and got the job done.

Carolyn M.

United Air Temps recently serviced my heating units and has serviced my AC units regularly for a few years. The prices are so reasonable.

Devin C.

Our water heater broke down and Edson had it replaced in less than 24hrs. We had a subsequent HVAC issue and he sent a tech to repair it minutes after I submitted the request. We are so grateful for the services UAT has provided.

Brenda M.

I have been a United Air Temp customer for ten years and they never fail to give me prompt, reliable, HONEST service. Friendly, knowledgeable, and mindful of my time.

Why Choose Us Discover the United Difference
Trained Technicians
Upfront Pricing
Environmental Health & Safety
Value-Added Services
On-Time Scheduling
Commitment to Community
Quality Craftsmanship
Satisfaction Guaranteed
Trained Technicians
Upfront Pricing
Environmental Health & Safety
Value-Added Services
On-Time Scheduling
Commitment to Community
Quality Craftsmanship
Satisfaction Guaranteed
Save on Your Service Our Goal Is to Keep Your Home Comfortable
Same Day Service or It’s Free!
Expires 05/31/2024 Offer applies to diagnostic fee for initial visit for service calls. Additional labor or materials costs incurred are not applicable. Call must be received before 2pm Monday – Friday. “Same Day” is defined as technician arrival prior to 10 pm on day of qualifying call, or dispatch fee will be waived. Offer not applicable in the event of delays due to customer, inclement weather, or property inaccessibility. Substantial completion of full job during initial visit is not guaranteed and completion times may vary. Limited time offer subject to availability. Offer not applicable for home warranty calls or maintenance visits. Offer not valid on weekends; call for complete details.
Save Up To $2,000When You Buy a Complete HVAC System with A/C and Furnace!
Expires 04/30/24 *Cannot be combined with any other offer. Not applicable for a heat pump system.
Limited Time Only!
*Disclaimer: Waived diagnostic charge available during normal service hours in the DC Metro service area for plumbing service calls only.
No Plumbing Diagnostic Fee - Savings of $98!
Expires 04/30/24 .
FREESurge Protector with Electrical Panel Upgrade
Expires 04/30/24
$69.95AC Clean & Check
Expires 04/30/24
FREEsecond opinion – HVAC or Plumbing replacement
Expires 04/30/24
$25 OFFfor referrer and friend
Expires 04/30/24
$50diagnostic for first- time plumbing customer
Expires 04/30/24
$250 OFF tankless water heater replacement
Expires 04/30/24
FREEestimate on water heater replacement
Expires 04/30/24
FREEestimate on water treatment system
Expires 04/30/24
FREE estimate on HVAC system replacement
Expires 04/30/24
Call us for a FREE ESTIMATE to install a new ductless mini single zone system with white finished indoor air handler at a SPECIAL PRICE.
Expires 04/30/24
$50 Off Plumbing Repair
Expires 04/30/24
$500 off a complete new system
Expires 04/30/24
Expert Dryer Vent Cleaning. When combined with other services. $89.95
Expires 04/30/24
Free hot water tank cleaning & safety inspection with any HVAC repair!
Expires 04/30/24
Free hot water tank cleaning & safety inspection with any plumbing repair!
Expires 04/30/24
Flag with over 90 years in business text Over 90 tears in business banner
Satisfied Customers
Total Reviews
4.5 Google Rating
What Our Clients Are Saying
testimonial_image The tech was at my home less than 10 minutes and gone within 20 minutes due to having my A/C up and running. I really appreciate his response to my home and working with my son due to me being out of town, but we spoke on the phone.
testimonial_image The technician arrived promptly, wore a mask, was very courteous and professional. I am generally very satisfied with service by United Air Temp. In addition to good service (they repair well), it is easy to speak to a person, and promptly. Thank you.
testimonial_image Great service! I called because I was under the impression the AC was not working upstairs. Someone came on the same day, checked out the system, and ensured everything was working. He was polite, thorough, and friendly.
testimonial_image Tech was very attentive and professional. He went out his way to explain everything to me as he was doing it. I appreciated him keeping me informed.
testimonial_image The service technician was awesome! He spent the extra time necessary to ensure the leak in our system was fixed, the system fully recharged and everything was functioning as it should. He was extremely thorough and very professional. We are extremely pleased with the result!

United Air Temp was named the 2022 HVACR National Contractor of the Year.

Contractor of the Year-2022 Click Here to Learn More
Affiliations & Awards
Plumbing heating and cooling contractors association logo
NATE blue logo with yellow text
Energy Star blue square logo
Better Business Bureau blue logo
Green and black Rebuilding Together logo
Blue Feed the Fight logo with kitchen with web link
Habitat for Humanity green and blue logo