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24/7 AC and Heating Services in Sterling, VA

For HVAC services you can depend on for your Sterling home or business, contact United Air Temp. Our NATE-certified technicians stay updated on all technological advances and techniques to solve any issue you might experience.

For over 90 years, Sterling homeowners and business owners have trusted the experts at United Air Temp, and our teams are honored to continue this tradition of service excellence.

Contact United Air Temp online for 24/7 emergency HVAC assistance.

24/7 Air Conditioning Services in Sterling, VA

United Air Temp offers air conditioning services for your cooling needs all year. In the event of an AC emergency, our NATE-certified technicians can arrive quickly to provide quality air conditioning repairs.

We recommend scheduling an air conditioning maintenance appointment with a United Air Temp technician once per year to ensure your cooling system will operate efficiently.

Our AC services include:

Ready to get started? Contact us online to schedule an air conditioning service in Sterling, VA.

Sterling Heating Services

At United Air Temp, we understand that heating emergencies in Sterling can be serious. Our expert technicians are available 24/7 to provide emergency repairs for Sterling homes and businesses. We also keep fully stocked trucks near Sterling to quickly respond to furnace, heat pump, and ductless mini-split emergencies.

Before the heating season begins, our experienced technicians recommend you have your heating system inspected by a certified HVAC technician. This can prevent unexpected breakdowns and costly repairs that leave you and your family in the cold.

Here are the heating services we offer in Sterling:

Save on your energy bills, reduce the need for repairs, and extend the life of your heater with professional heating services in Sterling.

Contact United Air Temp to schedule an appointment.

HVAC Systems We Service

Indoor Air Quality Services

Many Sterling homeowners and business owners don’t realize indoor air is often more polluted than outside air. While newly built homes are more energy-efficient, this can lead to tightly enclosed spaces where the air quality rapidly decreases. With our indoor air quality services, we can counteract this by installing systems that improve the air quality.

Our indoor air quality services help homeowners, families, and colleagues breathe easier indoors, reducing the circulation of pollutants and allergens like mold, pet dander, and dust. Rely on our experts to find the right solution for your home, including:

Choose United Air Temp for Reliable HVAC Services

Whether you need urgent HVAC repairs, or you want to upgrade one of these systems in your home, call United Air Temp. Our licensed NATE-certified technicians are equipped with the tools, knowledge, and experience to improve the comfort of your home.

We’re available 24/7 to respond to emergency repair needs, so rest assured that our teams will restore your heating and cooling system as soon as possible.

Contact us online to schedule an HVAC service in Sterling.

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Leader in Home Comfort Since 1931Get Your Free Estimate


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
BOGO! $99 Buy This Year's Heating Tune Up, Get Next Year's Free.

Learn More

Expires 02/29/24 Plus, up to 2 lbs of refrigerant if needed. *Cannot be combined with any other offer. Call for details.
Save Up To $2,000When You Buy a Complete HVAC System with A/C and Furnace!
Expires 02/29/24 *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 02/29/24 .
FREESurge Protector with Electrical Panel Upgrade
Expires 02/29/24
$69.95AC Clean & Check
Expires 02/29/24
FREEsecond opinion – HVAC or Plumbing replacement
Expires 02/29/24
$25 OFFfor referrer and friend
Expires 02/29/24
$50diagnostic for first- time plumbing customer
Expires 02/29/24
$250 OFF tankless water heater replacement
Expires 02/29/24
FREEestimate on water heater replacement
Expires 02/29/24
FREEestimate on water treatment system
Expires 02/29/24
FREE estimate on HVAC system replacement
Expires 02/29/24
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 02/29/24
$50 Off Plumbing Repair
Expires 02/29/24
$500 off a complete new system
Expires 02/29/24
Expert Dryer Vent Cleaning. When combined with other services. $89.95
Expires 02/29/24
Free hot water tank cleaning & safety inspection with any HVAC repair!
Expires 02/29/24
Free hot water tank cleaning & safety inspection with any plumbing repair!
Expires 02/29/24
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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