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CostInspector 2026 Award

The 10 Best Furnace Repair Companies in San Diego, CA

The highest-rated local furnace repair companies in San Diego, ranked by verified customer reviews. Independently compiled by CostInspector — no pay-to-play.

Last updated June 30, 2026

Based on 2,554 verified reviews Editorially independent 10 businesses evaluated
Smith & Sons Heating and Air Inc. — Air conditioning repair service1

Smith & Sons Heating and Air Inc.

Top 1
5.0267 reviews·Air conditioning repair service
Same Day Heating, Cooling, Plumbing — HVAC contractor2

Same Day Heating, Cooling, Plumbing

Top 2
4.81,766 reviews·HVAC contractor
Surf Bros HVAC — HVAC contractor3

Surf Bros HVAC

Top 3
5.0126 reviews·HVAC contractor
HVAC San Diego King — HVAC contractor4

HVAC San Diego King

5.094 reviews·HVAC contractor
Fresh Coast Heating and Air Conditioning — HVAC contractor5

Fresh Coast Heating and Air Conditioning

5.070 reviews·HVAC contractor
Coronado Best HVAC Service — HVAC contractor6

Coronado Best HVAC Service

5.067 reviews·HVAC contractor
HQ Kisso Air Conditioning — HVAC contractor7

HQ Kisso Air Conditioning

5.049 reviews·HVAC contractor
San Diego Air Comfort Heating & Air Conditioning — HVAC contractor8

San Diego Air Comfort Heating & Air Conditioning

4.950 reviews·HVAC contractor
Extreme Air — Heating contractor9

Extreme Air

5.033 reviews·Heating contractor
Straight Shooter Heating & Cooling — HVAC contractor10

Straight Shooter Heating & Cooling

5.032 reviews·HVAC contractor
What it costs in San Diego

San Diego furnace repair costs

Labor in California runs about 35% above the national average, so local prices sit higher than national figures. Most furnace repairs in San Diego land between $202 and $1,620, with a diagnostic visit running $101–$202.

Common repairSan Diego price range
Ignitor replacement$202–$405
Flame sensor$101–$270
Capacitor$135–$473
Gas valve$270–$810
Blower motor$540–$2,025
Heat exchanger$1,350–$6,075

CostInspector furnace repair pricing, adjusted for California (regional cost multiplier 1.35×). Estimates only — get a quote from one of the providers above.

How we ranked these furnace repair companies

This list is compiled from Google Maps public review data for furnace repair companys operating in and around San Diego, California. We don't accept payment for placement — ranking is earned, not bought.

Each business is scored on two signals:

  • Average star rating — the quality of customer experiences.
  • Review volume — how many verified customers back up that rating.

We combine these with a weighted average so a business with a 5.0 from 12 reviews doesn't automatically outrank one holding 4.9 across 1,400+ reviews. The result favors providers with both consistently high ratings and a deep, proven track record. Data is refreshed periodically; ratings shown reflect the date above.

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