WILLIAMS · CUPERTINO
Service · All Williams ModelsWilliams Wall Furnace & Heating Repair · Cupertino, CA
Williams wall furnace service in Cupertino, from the Eichlers to the older ranch homes near the foothills.
- $75 diagnostic (waived with repair)
- Same or next-day best effort
- CSLB #1136642
Williams in Cupertino
Williams heating and cooling in Cupertino.
Cupertino has a strong run of mid-century homes, including Eichlers and ranch houses near the foothills. The Eichlers in particular were built without conventional ducted attics, and a number of older homes here still heat secondary rooms with a Williams wall furnace.
South Bay weather is mild and dry, so these units do not run hard, but the radiant-slab Eichlers and ductless additions still rely on a wall furnace for that one cold room, and the pilots and valves age out over the decades.
ADRIUM runs HVAC through Bay Area HVAC Service. We are CSLB licensed and EPA 608 Universal certified, we give written quotes, and we will be straight with you about repair versus replacement.
Common repairs we do
What we close on the truck.
- Wall furnace in an addition not igniting. On older Williams units serving a ductless addition, a failed thermocouple is the common no-heat cause. I confirm the pilot lights, test millivolt output, and replace the thermocouple.
- Aged gas valve not opening. Decades-old Williams gas valves stick closed and the burner will not light. We test the valve and safety circuit and replace the valve with the correct Williams part.
- Sooty burner from long light idling. In Cupertino's mild climate the furnace idles more than it runs, leaving carbon on the burner. We clean the burner and orifices and confirm a clean blue flame and proper draft.
Models we service
Williams product lines.
- Wall furnaces (Williams Cozy and Direct-Vent)
- Gravity and forced-air floor furnaces
- Pilot and electronic ignition systems
- Thermocouples, thermopiles, and gas valves
- Console and high-efficiency direct-vent heaters
Pricing and warranty
What it costs. What we stand behind.
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$75
Diagnostic visit. Waived when you book the repair with us.
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Written
90 days on consumables, 1 year on major parts, 2 years on sealed-system rebuilds. Quoted in writing before work starts.
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CSLB
#1136642. Bonded and insured. We file warranty paperwork when applicable.
Nearby cities
Williams service in neighboring cities.
More cities
Williams across our service area.
- Williams in Alameda
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FAQ
Williams in Cupertino questions, answered.
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What is the drive time to Cupertino from San Ramon
Cupertino is about 50 to 60 minutes from our San Ramon base down 680 toward Sunnyvale and San Jose, with Mountain View and Los Altos nearby. We book a firm window and call when we are close. -
My Eichler has radiant heat. Why do I have a wall furnace too
Many Eichler owners add a wall furnace for a room the slab no longer heats well, or for an addition. We service that Williams unit on its own without touching the radiant system. -
Can you replace a unit that is past repair
Yes. If parts are gone or the heat exchanger is cracked we quote a like-for-like replacement in writing, with 10-year parts and 10-year labor on the install.
Need Williams service in Cupertino?