HVAC & Plumbing Services in San Diego
One trusted local team for all your heating, cooling, and plumbing needs. THA Heating, Air & Plumbing has kept San Diego comfortable since 1980 with honest pricing and 24/7 emergency response.
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Tell us what you need—a licensed pro will call you back fast.
Three Trades, One Trusted San Diego Team
Whether it's a midsummer AC breakdown in La Jolla or a water heater failure in Chula Vista, our certified technicians are ready to help.
Air Conditioning
Keep your San Diego home cool and comfortable all summer with fast, reliable AC service.
- Emergency AC repair & diagnostics
- High-efficiency system installation
- Ductless mini-splits & zoned cooling
- Tune-ups & preventive maintenance
Heating
Stay warm during San Diego's cool coastal winters with expert heating service and installation.
- Furnace repair & replacement
- Heat pumps & ductless mini-splits
- Thermostat & zone control
- Safety inspections & tune-ups
Plumbing
Trusted plumbing repairs and installations for homes and businesses across San Diego County.
- Leak detection & pipe repair
- Tank & tankless water heaters
- Drain & sewer clearing
- Fixture installation & repair
Leak Detection & Sewer
Specialized electronic slab leak detection, kitchen & fixture upgrades, and hydro-jetting.
- Kitchen & fixture installation
- Non-invasive slab leak detection
- Hydro-jetting & video pipe camera
- Copper & PEX pipe repiping
Commercial Plumbing
Code-compliant plumbing for San Diego restaurants, medical facilities, offices & multi-family.
- Certified backflow testing & repair
- Grease trap installation & service
- Heavy-duty hydro-jetting & camera
- Commercial water heaters & boilers
Honest, Reliable & Always Available
24/7 Emergency Service
Live dispatch answers your call day or night, 365 days a year.
40+ Years in San Diego
Locally owned since 1980 with a BBB A+ accredited reputation.
Licensed & Insured
California licensed technicians, upfront pricing, no surprises.
Free Estimates
Transparent quotes on installations and replacements—no obligation.
Ready to Schedule Service?
Call now for fast, friendly dispatch across San Diego County, or send us your details and we'll call you back.