Sunnyvale & surrounding areas

Furnace Repair
Sunnyvale, CA

When your furnace stops heating on a cold Sunnyvale night, we respond fast. Gas furnaces, electric heat, dual-fuel systems. Combustion safety check included on every call. Based in Los Gatos, about 20 minutes away. All brands, all ages.

(408) 581-2241
20 minFrom Los Gatos
5.0 ★Google Rating
Same DayEmergency Service
C-20 & C-38Dual Licensed
C-20 HVAC License EPA 608 Certified NATE Certified

Furnace Repair in Sunnyvale: Quick Heating Restoration

Most Sunnyvale homes rely on gas forced-air furnaces — the standard since the 1960s building boom. Neighborhoods along El Camino, near Fremont Avenue, and off Fair Oaks have furnaces ranging from 15 to 40+ years old. Common issues: failed ignitors, dirty flame sensors, cracked heat exchangers, blower motor failures.

Newer townhomes and condos near downtown have higher-efficiency furnaces (90%+ AFUE) with more complex controls. Some newer construction uses heat pump systems entirely. We handle every type. Detailed furnace repair services.

What Furnace Repair Typically Costs in Sunnyvale

Diagnostic / Service Call$89–$150
Minor Repairs (ignitor, flame sensor)$150–$350
Moderate Repairs (blower motor, gas valve)$400–$1,000
Major Repairs (heat exchanger, inducer)$1,200–$3,000

Ranges cover residential systems in Sunnyvale. Exact pricing before work begins.

Why Us

Why Sunnyvale Chooses North Breeze for Furnace Repair

Combustion Safety Standard
CO levels, heat exchanger, gas pressure, flue draft checked on every call.
Fast Response
About 20 minutes from Los Gatos. Same-day emergency heating service.
Repair First
A $200 ignitor fix beats a $6,000 furnace you don’t need. Honest diagnosis.
All Ages
From 1960s-era furnaces to modern variable-speed systems. We work on all of them.
FAQ

Furnace Repair Sunnyvale — Common Questions

Check thermostat settings (heat mode), furnace switch, circuit breaker. If those are fine, likely an ignitor or flame sensor. Troubleshooting guide.
Yes — carbon monoxide risk. We include combustion safety check on every furnace call and will shut down an unsafe furnace immediately.
If replacement is needed anyway, consider it — $2,000–$8,000+ in CA/federal rebates available. Heat pump vs. furnace comparison.
Yes. Annual tune-ups with combustion analysis, safety inspection, filter replacement. Maintenance plans.

More Services in Sunnyvale

Ac Repair→ Hvac Repair→ Heat Pump Installation→ Commercial Hvac Repair→
← All services in Sunnyvale

Furnace Repair in Nearby Cities

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View all 37+ cities we serve →

Furnace Repair in Sunnyvale — Same-Day Service

All brands. Same-day emergency service. C-20 & C-38 dual-licensed.

Call (408) 581-2241
CSLB #1127709 EPA 608 & NATE Certified