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
1Smith & Sons Heating and Air Inc.
Top 1
2Same Day Heating, Cooling, Plumbing
Top 2
3
4
5Fresh Coast Heating and Air Conditioning
6
7
8San Diego Air Comfort Heating & Air Conditioning
9
10San 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 repair | San 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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