Gas, electric, and heat pump systems. Full safety checks on every visit.
$99 diagnostic
Brands we service and install: Daikin · Goodman · Carrier · Lennox · Trane · Rheem · American Standard · York See all brands we carry →
Gas furnace problems usually trace back to the ignitor, flame sensor, or draft inducer. Electric furnaces come back to heating elements and sequencers. Heat-pump-based systems need different diagnostics altogether, and that is where factory training pays off. We work with all three. Safety comes first on every gas furnace call: we test carbon monoxide levels, gas valve function, and heat exchanger integrity.
What’s included:
- Full system inspection (burners, heat exchanger, blower, controls)
- Carbon monoxide testing (gas furnaces)
- Gas valve and pilot/ignitor diagnostics
- Electrical component testing
- Airflow and duct inspection
- Written estimate before any repair
- Emergency gas leak response protocol
- Performance logs for next visit
Common Bay Area furnace failures:
- Hot surface ignitor cracks, the most common modern failure
- Flame sensor carbon buildup, which may need cleaning or replacement
- Draft inducer motor wear on systems past 12 years
- Heat exchanger cracking on systems past 18 years (safety issue, usually means replacement; we show you the crack on camera before quoting)
- Pilot light issues on older systems (almost all 1990s and earlier units)
When to replace, not repair:
A 15-plus-year furnace with a major component failure (heat exchanger crack, control board burn, multiple gas valve failures) is usually past the point where repair makes financial sense. The same applies if your home has reached the point where heat pump conversion qualifies for stacked rebates. We run that math at the estimate.
| Item | Repair | Replace | Source |
|---|---|---|---|
| First visit | $99 diagnostic, credited toward the repair | Free on-site replacement assessment | HVAC installation page |
| Usual trigger | Ignitor, flame sensor, or draft inducer failure on a sound heat exchanger | 15-plus years old with a heat exchanger crack, control board burn, or repeat gas valve failures | This page |
| Heat pump option | Not applicable | Whole-home ducted heat pump: $14,000 to $18,000 before rebates (2026) | Heat pump cost guide |
| Warranty | Repairs carry a 1-year warranty | 10-year manufacturer parts; labor 2 years standard, 10 years with our maintenance plan ($290 a visit, 2 visits a year) | Warranty FAQ |
Gas safety:
We carry CO meters on every gas furnace call. If we find dangerous CO levels or a confirmed heat exchanger crack, we shut the system down before leaving. You get the documentation. The next step is yours.
What makes us different
Safety first, every visit. We test carbon monoxide levels, gas valve function, and heat exchanger integrity on every gas furnace job. Not optional: part of the diagnostic.
Owner reviews every estimate. Every estimate gets my personal review before it reaches you. For installations and complex service, I meet you on-site. For routine calls, our trained technicians arrive with my license number on the invoice.
All three heating types. Gas, electric, and heat-pump-based systems. Factory training on Daikin means we know the new heat pump heating systems that most shops have not trained on.
What to expect
Every job, repair or install, follows the same rhythm. No upsells dressed as "package tiers." No "today only" pricing. If the answer is "wait six months and re-evaluate," that is what we will say.
- Diagnose the fault
We check the reported problem and record the system readings. The visit starts with a $99 diagnostic, credited toward the repair.
- Review the repair estimate
You receive an itemized written estimate after diagnosis. We explain the findings and any parts that need to be ordered before you approve the work.
- Schedule the approved repair
We confirm parts availability and arrange the repair with you. Any change to the approved scope needs your approval.
- Check the result
We test operation after the repair and record the work. HVAC repairs carry a 1-year warranty, subject to the written repair terms.
The diagnostic is ninety-nine dollars and we credit it toward the repair. If the answer is ‘your system is fine, here are the logs, call us next year,’ that is what the estimate will say.
Furnace Repair: common questions
My furnace keeps cycling on and off. What's wrong?
Is my furnace unsafe if it's making a new noise?
My furnace clicks a few times, then shuts off, and I smell something burning. Is that safe?
When should I replace instead of repair?
Do you do annual furnace tune-ups?
Cities where we do this work
Tier-1 service area for furnace repair: Danville · San Ramon · Alamo · Blackhawk · Pleasanton · Dublin · Walnut Creek · Lafayette · Alameda · Piedmont · Pleasant Hill · Atherton · Hillsborough · Los Altos Hills · Burlingame · Millbrae .
Also across the Bay Area: Livermore · Concord · Orinda · Moraga · Martinez · San Jose · Santa Clara · Cupertino · Los Gatos · Saratoga · Sunnyvale · Mountain View · Palo Alto · Los Altos · Menlo Park · Oakland · Berkeley · Richmond · El Cerrito · Albany · Fremont · Hayward · Union City · Newark · San Leandro · Castro Valley · Milpitas · Woodside · Portola Valley · Daly City · South San Francisco · San Bruno · Pacifica · San Mateo · Foster City · Belmont · San Carlos · Redwood City · East Palo Alto · Half Moon Bay . See full service area.
Schedule furnace repair
Repairs start with a $99 on-site diagnosis, credited toward the repair. Replacing a system? The on-site assessment visit is free. Written findings and estimates follow the visit.
Bay Area · 7am–7pm · 7 days · no overtime charges