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ADRIUM Service Solutions
(925) 999-4095 · San Ramon, CA · CSLB #1136642 · BBB A+
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WILLIAMS · HALF MOON BAY

Service · All Williams Models

Williams Wall Furnace & Heating Repair · Half Moon Bay, CA

Williams wall furnace repair for Half Moon Bay and the Coastside, covering Montara, Moss Beach, and El Granada too.

  • $99 diagnostic (waived with repair)
  • Same or next-day best effort
  • CSLB #1136642
Call (925) 999-4095

Williams in Half Moon Bay

Williams in Half Moon Bay kitchens.

Half Moon Bay is the anchor of the Coastside, and we cover Montara, Moss Beach, and El Granada right along with it. A lot of the older beach cottages and farmhouses near Main Street and the harbor still run a single Williams wall furnace, and the salt air off the ocean is hard on them.

The marine layer sits over Half Moon Bay for a good part of the year, and that constant damp, salty air corrodes metal parts faster than inland cities ever see. A wall furnace out here ages differently than the same unit would in San Ramon.

ADRIUM keeps a technician on the Peninsula, and the Coastside is part of that regular coverage, not a special trip. Repairs go through Bay Area HVAC Service, CSLB licensed, EPA 608 certified, written quote before any work.

Common repairs we do

What we close on the truck.

  • Salt air corrosion on the gas valve. The constant marine layer along Main Street and the harbor corrodes the gas valve body and fittings faster than I see inland, sometimes causing a slow leak at a fitting or a valve that sticks partway open. I check every fitting for corrosion during a diagnostic and replace the valve if it's gotten into the seat.
  • Thermocouple failure sped up by coastal moisture. Salt air moisture works into the thermocouple connection at the gas valve faster out here than elsewhere, so the pilot drops out more often than the unit's age alone would explain. I clean the connection, test the millivolt reading, and replace the thermocouple when it reads weak.
  • Rust through on the heat exchanger. On the older cottages near the coast, the metal heat exchanger can rust through from years of damp salt air even while the rest of the unit still runs fine. I inspect it closely on every coastal call and won't leave a unit running if the exchanger shows rust-through, since that lets combustion gas into the room.

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.

  • $99

    Diagnostic visit. Waived when you book the repair with us.

  • Written

    3 months standard, 1 year on inverter boards, up to 2 years on sealed-system rebuilds. Quoted in writing before work starts.

  • CSLB

    #1136642. Bonded and insured. We file warranty paperwork when applicable.

Nearby cities

Williams service in neighboring cities.

FAQ

Williams in Half Moon Bay questions, answered.

  • Do you actually come out to the coast, or just as far as Redwood City?
    We come to Half Moon Bay directly, plus Montara, Moss Beach, and El Granada. Our Peninsula-based technician covers the whole Coastside, not just the inland cities.
  • Salt air seems to wreck everything out here eventually. Does it affect the furnace too?
    Yes, more than people expect. I check the gas valve, the thermocouple connection, and the heat exchanger for corrosion on every coastal call, since salt air ages those parts faster than inland weather does.
  • What's the diagnostic fee?
    It's $99, and I waive it when you book the repair. You get a written quote before I do any work.

Need Williams service in Half Moon Bay?

Tell us what is broken. We will quote it.

Call (925) 999-4095
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