Top-Quality Thermostat Installation in Washington, D.C. & Northern Virginia

Technician showing a homeowner how to use her new thermostat on a white wall in her home.

If your thermostat is malfunctioning, your HVAC system isn’t responding, or you’re ready to upgrade to a smart model, it might be time for a professional installation.

At United Air Temp, we offer fast, reliable HVAC service in Washington, D.C., and Northern Virginia. We treat every home like our own and every customer like a neighbor we’ll see tomorrow. From helping you choose the right thermostat to making sure it’s set up just right, we’re here with real care — no guesswork, no rush.

Upgrade your thermostat today — contact us to schedule a thermostat installation with our trusted team.

Why Upgrade Your Thermostat?

In D.C. and Northern Virginia’s hot, humid summers and chilly winters, a reliable thermostat plays a key role in keeping your heating and air conditioning systems running smarter.

Modern thermostats do more than just control the temperature — they help you save energy, lower your monthly bills, and maintain a more consistent, comfortable indoor environment.

Smart thermostats learn your habits, adjust automatically, and can even be controlled from your phone, giving you better control over your heating and cooling all year.

Request Service Get started by filling out a service request form or by giving us a call.

Our Thermostat Installation Process

Proper placement and calibration are key to maximizing efficiency and comfort — two things we never compromise on. That’s why, at United Air Temp, we make thermostat installation simple, precise, and stress-free.

Here’s how it works:

  • Assessment: We start by evaluating your current thermostat and discuss issues and what features you’re looking for in your new unit.
  • Thermostat selection: Whether you’re upgrading to a smart thermostat or replacing a faulty one with another manual or programmable thermostat, we’ll help you choose the best fit for your home.
  • Proper placement: Our technicians ensure your thermostat is installed in the optimal location — away from heat sources or drafts — to ensure accurate readings.
  • Professional installation: We handle all wiring and mounting, making sure everything is connected and secured safely.
  • Calibration and testing: We calibrate your thermostat for accurate performance and run a full test to confirm it’s communicating properly with your HVAC system.
  • Walkthrough and setup: Before we go, we show you how to use your new thermostat and answer any questions you have.

Having trouble with your thermostat? We also offer expert thermostat repair to get your comfort system back on track fast.

Types of Thermostats We Install

We install a wide range of thermostats to match your lifestyle and HVAC system, and no matter which type you choose, we’ll make sure it’s fully compatible, whether you have a central AC, furnace, boiler, heat pump, and/or ductless mini-split.

Types of thermostats include:

  • Manual thermostats are your standard model. You have to adjust the temperature and fan setting at the unit on the wall anytime you want a different setting.
  • Programmable thermostats are ideal for setting daily or weekly schedules. These models help reduce energy use when you’re not home.
  • Smart or Wi-Fi thermostats learn your habits and adjust automatically, offering energy savings and remote control through apps or voice assistants. You can also adjust your home’s temperature from anywhere.

How To Choose the Right Thermostat for Your Home

Finding the right thermostat is all about what works best for your home and routine. Do you have a big house or a system with multiple zones? A smart or Wi-Fi model might be your best bet for keeping everything balanced.

Do you just need something simple you can preset to save money on your energy bills while you’re at work? A basic programmable option can do the trick.

Here in Washington, D.C., and Northern Virginia, where summers get humid and winters can dip into the low 30s, many homeowners lean toward smart thermostats for energy savings and convenience.

Schedule Your Thermostat Installation in D.C. or NOVA

At United Air Temp, we’re not just here to fix things — we’re here to build lasting relationships. With over 90 years in business, we’ve earned the trust of homeowners across Washington, D.C., and Northern Virginia by doing things the right way.

Our team completes over 40 hours of UAT Academy and factory training each year, so you’re always getting skilled, knowledgeable service. We provide honest and upfront pricing, and we show up with a can-do attitude and real respect for your home.

Check out our customer reviews and special offers to make your thermostat upgrade even easier.

Contact us today to schedule a thermostat installation and see why homeowners trust us to keep their HVAC systems running efficiently, reliably, and with care.

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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.

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
$895 Off Complete HVAC System
Expires 05/31/25 Cannot be combined with any other offers. Not valid on previous completed work. Call for details.
FREESurge Protector with Electrical Panel Upgrade
Expires 05/31/25
FREEsecond opinion – HVAC or Plumbing replacement
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$25 OFFfor referrer and friend
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$250 OFF tankless water heater replacement
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FREEestimate on water heater replacement
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FREEestimate on water treatment system
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FREE estimate on HVAC system replacement
Expires 05/31/25
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.
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$50 Off Plumbing Repair
Expires 05/31/25
Expert Dryer Vent Cleaning. When combined with other services. $89.95
Expires 05/31/25
Free hot water tank cleaning & safety inspection with any HVAC repair!
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Free hot water tank cleaning & safety inspection with any plumbing repair!
Expires 05/31/25
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Satisfied Customers
Total Reviews
4.5 Google Rating
What Our Clients Are Saying
testimonial_image "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."
testimonial_image "United Air Temp recently serviced my heating units and has serviced my AC units regularly for a few years. The prices are so reasonable."
testimonial_image "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."
testimonial_image "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."

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

Contractor of the Year-2022 Click Here to Learn More
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