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.
- $99 diagnostic (credited toward the 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.
Cupertino details
Williams service in Cupertino: the local facts.
Cupertino is about 32 miles from our base in San Ramon, in a straight line. We service ZIP code 95014 in Cupertino.
Across the Bay Area we completed more than 1,200 repair and service jobs in the last 12 months.
Williams product lines and all 65 cities we cover for the brand are on our Williams page.
Common repairs we handle.
- 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.
Pricing and warranty
What it costs. What we stand behind.
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$99
Diagnostic visit. Credited toward the repair.
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Written
1-year warranty on repairs. 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.
FAQ
Williams in Cupertino questions, answered.
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How do you schedule a visit in Cupertino?
Our technician for Cupertino is based in San Mateo. 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, labor 2 years standard (10 years on our maintenance plan) on the install.
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