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Thermostat Repair & Smart Thermostat Installation in Fairfax, CA

Upgrade to a smart thermostat in Fairfax and cut heating and cooling costs with scheduling, remote control and usage reports. We handle the C-wire, compatibility with heat pumps and multi-stage systems, and full setup on your phone.

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Thermostat service in Fairfax, 24 hours a day(855) 459-5498Same-day service • Flat pricing • All brands
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Home › Locations › Fairfax, CA › Thermostat Repair & Smart Thermostat Installation

Thermostat service in Fairfax: what we fix

Thermostat issues range from dead batteries and loose wiring to failed control boards and incompatible smart thermostats wired without a common wire. We verify the wiring, confirm the thermostat is right for your equipment (single-stage, multi-stage, heat pump with auxiliary heat) and set up schedules that actually save energy.

Call for thermostat service if you notice

  • Thermostat screen blank or unresponsive
  • Room temperature does not match the display
  • System will not turn on or will not turn off
  • You want to control heating and cooling from your phone
  • Old mercury or dial thermostat
  • Heat pump or two-stage system needs a compatible control

Why Fairfax homeowners choose us

  • Local technicians who know Fairfax homes and their systems
  • A real person answers the phone, day or night
  • Written quotes, no hourly surprises
  • Repairs on all brands, all ages, all fuel types
  • Financing available on new systems
  • Every job backed by our workmanship guarantee

Thermostat service near me in Fairfax, CA

If you typed "thermostat service near me" from Fairfax, this is the page for you. Our technicians work Fairfax neighborhoods daily and know the equipment common to homes here, from attic split systems to rooftop packaged units, so diagnosis is fast and repairs are done right.

We also handle smart thermostat installation, thermostat not working, Nest thermostat install, ecobee installation, thermostat replacement for Fairfax homes and businesses, and serve the nearby communities of San Anselmo, Ross, San Rafael, Larkspur, Corte Madera, Mill Valley. If you are not sure what your system needs, call and describe the problem. Our dispatcher will book the right technician.

How thermostat service works

Call or book online

Tell us what the system is doing. Our dispatcher gives you an honest arrival window, often the same day.

Diagnosis on arrival

The technician tests the system, shows you what failed and explains why in plain language.

Flat price, your approval

You get a written price for the repair before any work begins. No hourly surprises.

Repair and verify

We fix it, test the system under load and leave the work area clean.

Fairfax customers on our thermostat service

★★★★★

Called at 10 pm on a Saturday with no heat and someone actually answered. The furnace was running again before midnight. Cannot recommend them enough for anyone in Fairfax.

David R., Fairfax
★★★★★

Two other companies told me I needed a whole new system. These guys found a refrigerant leak, repaired it and my 8-year-old unit is cooling like new. Honest people.

Jennifer L., Fairfax
★★★★★

Our restaurant rooftop unit died on a Friday lunch. They came out that afternoon and had us cooling again before the dinner rush. Lifesavers for a business in Fairfax.

Robert M., Fairfax

Thermostat Repair & Smart Thermostat Installation in Fairfax: frequently asked questions

Can you install a Nest or ecobee on my system?

Almost always, yes. Some systems need a C-wire or adapter, which we install during the visit.

Why does my thermostat say 72 but the house feels cold?

Poor thermostat placement, a miscalibrated sensor or airflow problems. We check all three.

Will a smart thermostat save money?

Most homeowners in Fairfax see 8 to 15 percent lower heating and cooling costs from scheduling alone.

Thermostat Repair & Smart Thermostat Installation service area: Fairfax, CA

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Get thermostat service in Fairfax today. One call to (855) 459-5498 gets you an honest arrival window, flat pricing and a technician who fixes it right.

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