Thermostat and Smart Controls in Northern Virginia
Get expert help with thermostats and smart controls today. Appleton Campbell installs, programs, and repairs smart and programmable thermostats with up front pricing and tidy service. We serve Northern Virginia, including Ashburn, Manassas, and Fredericksburg. Built on trust since 1976 with a 4.9 rating from 6,877 reviews. Call or schedule online for friendly, professional service.
How our prices compare.
What can you expect to pay?
How customers feel about the bill, in their words.
Post-job survey · verified customers
Why Choose Us
Class A Contractor
VA license 2701035532 with Masters in HVAC, Electrical, Plumbing, Gas
Since 1976 Locals Trust
Built on trust since 1976 across Northern Virginia
Up Front Pricing
Clear, transparent pricing before work begins
Award-Winning Team
Best of Fauquier, Culpeper Times, Prince William, Readers Choice
Top-Rated Service
4.9 rating from 6,877 reviews
What Our Customers Say
value
“He saved us a lot of money by fixing our smart thermostat instead of replacing it.”
professionalism
“A new programmable thermostat installed fast, programmed, and clearly explained.”
quality
“They helped get the thermostat app working on our phones. Top notch all the way.”
Most smart thermostat Wi‑Fi issues come from signal or setup problems. Typical causes are weak signal at the thermostat, incorrect password, recent router/SSID changes, or a 2.4 GHz vs 5 GHz mismatch. Power or wiring can also interrupt pairing. Appleton Campbell installs and replaces thermostats and diagnoses smart controls and zoning in Warrenton and nearby areas.
- Restart the thermostat and router.
- Use the 2.4 GHz band if required.
- Re-enter the exact Wi‑Fi name and password.
- Improve signal or add an extender; then retry pairing.
Updated: 2026-01-27
Need help in Amissville, VA? Call (540) 402-1789 or book online.
Professional thermostat rewiring costs vary by the problem and system, and we confirm pricing on site after diagnosis. We provide up-front pricing before work begins. Factors include single vs multi-zone controls, integration with your existing HVAC, whether the thermostat is replaced or reused, and time for testing and programming. MVP members get 15% off service repairs, no trip fees during regular hours, a discounted emergency after-hours fee, and an extended two-year limited warranty on most repairs with priority dispatch. We serve Ashburn and Fredericksburg.
Updated: 2025-12-24
Need help in Ashburn, VA? Call (540) 402-1789 or book online.
"We are very happy with the prompt, effective service." — Bob P.
Professional thermostat replacement cost depends on the thermostat type and your system’s wiring and controls. We install and replace programmable thermostats, smart upgrades, and zone thermostats across Ashburn and nearby cities. Integration with zoning or other HVAC components can affect labor. Your technician will diagnose, present upfront pricing, and confirm costs on site. MVP members receive 15% savings on service repairs, no trip fees during regular hours, a discounted emergency after-hours fee, plus an extended two-year limited warranty on most repairs and priority dispatch.
Updated: 2025-12-24 00:00:00
Need help in Ashburn, VA? Call (540) 402-1789 or book online.
"He also programmed it and gave us a tutorial on its operation." — Bob P.
You can replace a thermostat yourself, but professional installation helps avoid wiring errors and compatibility issues with zoned HVAC systems. Appleton Campbell installs and replaces programmable thermostats and can program and show you how to use them. Service is available in Ashburn, Haymarket, Bealeton, and nearby.
Quick checks before DIY:
- Turn off HVAC power at the breaker.
- Confirm your new thermostat matches your system and any zoning controls.
- Label each wire before removal.
- Mount, connect, and test each stage.
Updated: 2026-01-27
Need help in Amissville, VA? Call (540) 402-1789 or book online.
You can do simple thermostat checks yourself, but hire a professional for wiring issues, replacements, smart upgrades, or zoning controls. We repair and install thermostats across Ashburn and Fredericksburg. Our technicians handle diagnosis, programming, and integration with your HVAC. MVP members save 15% on service repairs, get priority dispatch, and receive a two-year limited warranty on most repairs.
Quick checks:
- Replace batteries or verify power.
- Confirm mode (Heat/Cool) and temperature.
- Check breaker and basic schedule settings.
Updated: 2025-12-24
Need help in Ashburn, VA? Call (540) 402-1789 or book online.
"Bill Dooly was knowledgeable, courteous, professional and had a new programmable thermostat installed in a very short time." — Bob P.
Still have questions?
Have questions or need service? Contact our team today to discuss your needs, request a quote, or schedule an appointment.
Rectortown
VA
Yorkshire
VA
Loch Lomond
VA
Centreville
VA
Castleton
VA
South Riding
VA
Elkwood
VA
Camp Barrett
VA
Bristow
VA
Woodville
VA
Hume
VA
Apple Mountain Lake
VA
Rixeyville
VA
Markham
VA
Garrisonville
VA
Ruby
VA
Calverton
VA
Purcellville
VA
Paris
VA
Arcola
VA
Ashburn
VA
Loudoun Valley Estates
VA
Casanova
VA
Aldie
VA
Orlean
VA
Brandy Station
VA
Flint Hill
VA
Broad Run
VA
Washington
VA
Shenandoah Farms
VA
Dale City
VA
Linden
VA
Buckhall
VA
Delaplane
VA
Union Mill
VA
County Center
VA
Chester Gap
VA
Warrenton
VA
Somerville
VA
Fair Lakes
VA
Catharpin
VA
Greenbriar
VA
Catlett
VA
Woodbridge
VA
Stone Ridge
VA
Sudley
VA
Bealeton
VA
Culpeper
VA
Independent Hill
VA
Bull Run Mountain Estates
VA
Middleburg
VA
Gainesville
VA
Remington
VA
Brambleton
VA
Bull Run
VA
Sumerduck
VA
Upperville
VA
Burr Hill
VA
Manassas Park
VA
Manassas
VA
Washington
DC
Amissville
VA
Stevensburg
VA
Chantilly
VA
Lignum
VA
Goldvein
VA
Stafford
VA
Boston
VA
Hartwood
VA
Haymarket
VA
The Plains
VA
Opal
VA
Fredericksburg
VA
Marshall
VA
Richardsville
VA
Sperryville
VA
Nokesville
VA
New Baltimore
VA
Skyland Estates
VA
Midland
VA
Innovation
VA
Linton Hall
VA
Viewtown
VA
Jeffersonton
VA
Huntly
VA
Clifton
VA
