HVAC Service

Thermostat Repair in the Bay Area

Wrong temps? We get it talking to your system. Thermostat repair, replacement and wiring — from simple dial units to smart Nest, Ecobee and Honeywell. We fix blank screens, miswires, C-wire issues and HVAC that won't respond, and set up smart thermostats.

Book Service (888) 993-5699

Same-day appointmentsLicensed & insured

Quick facts

Business: Triton HVAC & Appliance Repair (also known as Triton Appliance Repair)
License: CSLB #1138925
Service call: $89 flat, waived when you approve the repair
Repair warranty: 180-day labor warranty (5-year labor warranty on HVAC we install)
Service area: the San Francisco Bay Area — Castro Valley, CA and surrounding cities
Availability: Same-day · Open every day · 8am–6pm
Phone: (888) 993-5699
Updated: September 2026

Common thermostat problems we fix

Blank or dead screen
Won't change temperature
Heat / AC won't turn on
Wiring / C-wire problems
Smart thermostat setup

$89 service call, waived when you approve the repair180-day labor warrantyMost repairs done same day

Brands we fix:Nest Ecobee Honeywell Emerson Carrier

Thermostat repair you can count on across the Bay Area

When your thermostat breaks down you need it fixed fast — not next week. Triton HVAC & Appliance Repair delivers same-day thermostat repair across the San Francisco Bay Area, with licensed, experienced technicians who arrive on time, diagnose the real problem, and fix it right the first time. We service every major brand — Nest, Ecobee, Honeywell, Emerson, Carrier — and back every thermostat repair with our 180-day labor warranty.

From blank or dead screen to smart thermostat setup, there's no thermostat fault we haven't seen. You'll get an upfront, flat-rate quote before any work begins — no hidden fees, no surprises — with repairs starting from $89. The service call is a flat $89 and is waived when you approve the repair. Because we stock the most common thermostat parts on every truck, most jobs are done in a single visit.

Not sure whether to repair or replace? We'll tell you honestly. If your thermostatis worth saving, we'll save it — and save you the cost of a new one. That straight-talk, plus fast service and fair pricing, is why Bay Area homeowners rate us 4.8★ across 281+ reviews.

How thermostat repair works

1
Book in 60 seconds
Call or book online and tell us what your thermostat is doing.
2
Same-day diagnosis
A licensed tech arrives, finds the real fault, and explains it in plain English.
3
Approve a flat quote
You get an upfront, all-in price before any work starts. No hidden fees.
4
Thermostat fixed & guaranteed
Most repairs are done on the spot, backed by our 180-day labor warranty.

How much does thermostat repair cost?

Most thermostat repairs run $89–$350 in the San Francisco Bay Area, parts and labor included. Here's what common thermostat repairs typically cost:

Thermostat replacement$90–$300

C-wire add$110–$250

Low-voltage fuse$70–$180

Smart thermostat install$150–$350

Ranges are estimates — your exact price is a flat-rate quote given on-site. See our full repair cost guide.

Why choose us for thermostat repair

Same-day service

Call before early afternoon and we'll do our best to be at your door today.

Licensed, bonded & insured

Background-checked, experienced technicians and full liability coverage on every job.

Upfront, honest pricing

You approve a flat quote before any work starts. No hidden fees, ever.

Repairs that last

We fix the root cause and back it with our labor warranty — not a quick patch.

All major brands

From everyday Whirlpool and GE to premium Sub-Zero, Wolf, and Miele.

Trusted by neighbors

Rated 4.8★ by 281+ Bay Area homeowners.

Thermostat Repair FAQ

Thermostat repair questions

Most thermostat repairs in the San Francisco Bay Area run $89–$350 — parts and labor — depending on the part. For example, thermostat replacement typically runs $90–$300. You always get a flat-rate quote before any work begins.

Often yes — it can be dead batteries, a tripped float switch, or a blown low-voltage fuse on the furnace board. We find the cause and get it back on.

Absolutely. We install and wire smart thermostats, add a C-wire if your system needs one, and make sure it controls your heating and cooling correctly.

It could be the thermostat, the wiring, or the equipment. We test the thermostat and the low-voltage circuit to pinpoint whether it's the stat or the system.

Current Offers

Save on your repair.

Mention the code when you book. Discounts can't be combined with each other and apply to completed repairs. The $89 service call is always credited toward an approved repair — that's our pricing, not a coupon, so it stacks with any discount.

10% Off Labor — Up to $100

Save 10% on the labor for any completed appliance or HVAC repair, up to $100 per job. Parts and the service call are not discounted.

LABOR10Claim

Free Service Call With Repair

$89 service call — waived when you approve the repair. You only pay for the fix.

NOFEEClaim

Free HVAC Installation Estimates

Thinking about a new furnace, AC, or heat pump? We assess your home and quote the install free — no service call. HVAC we install carries a 5-year labor warranty.

FREEQUOTEClaim

Other repairs we handle

One call covers every appliance and your heating and cooling, too.

Washing Machine Repair

Same-day washer repair. The service call is a flat $89, waived when you approve the repair.

180-day labor warranty

Dryer Repair

Same-day dryer repair. The service call is a flat $89, waived when you approve the repair.

180-day labor warranty

Refrigerator Repair

Same-day refrigerator repair. The service call is a flat $89, waived when you approve the repair.

180-day labor warranty

Dishwasher Repair

Same-day dishwasher repair. The service call is a flat $89, waived when you approve the repair.

180-day labor warranty

Stove & Oven Repair

Same-day stove & oven repair. The service call is a flat $89, waived when you approve the repair.

180-day labor warranty