HVAC Sales, Service & Installation
Walnut Creek, CA HVAC Installation & Repair
Keeping Diablo Valley's busiest city cool and comfortable
HVAC Service in Walnut Creek
Walnut Creek's warm summers and active downtown and residential communities depend on HVAC systems that just work, day after day. Contra Costa Heating & Air Conditioning has served Walnut Creek homeowners and businesses for decades with reliable installation, repair, and maintenance services.
Whether you need a same-day AC repair or are planning a full furnace and heat pump upgrade, our Lennox-certified team is ready to help.
Our Services in Walnut Creek
Heat Pump Installation & Repair
High-efficiency heat pump systems sized and installed for reliable heating and cooling in every season.
Mini Split Installation & Repair
Ductless comfort for additions, ADUs, and hard-to-condition rooms, installed and serviced by certified techs.
Air Conditioner Installation & Repair
New AC installations and fast repairs that keep your home cool through the region's warmest stretches.
Furnace Installation & Repair
Dependable furnace installation, tune-ups, and repair to keep your home warm through cold, foggy winters.
Water Heater Services
Installation, repair, and maintenance for traditional and high-efficiency water heaters, including heat pump models.
Routine Maintenance & Tune-Ups
Seasonal tune-ups that catch small issues early, extend equipment life, and protect your energy bills.
Air Quality Assessment & Improvement
Indoor air quality testing and solutions that reduce allergens, smoke intrusion, and stale indoor air.
Emergency HVAC Services
24/7 emergency response when your heating or cooling system fails and comfort can't wait.
Areas We Serve
Proudly serving Walnut Creek and communities throughout the greater Bay Area.
- Pleasanton, CA
- San Jose, CA
- San Francisco, CA
- Oakland, CA
- Concord, CA
- Berkeley, CA
- Alameda County, CA
- Alamo, CA
- Burlingame, CA
- Castro Valley, CA
- Danville, CA
- Dublin, CA
- Livermore, CA
- Moraga, CA
- Orinda, CA
- San Mateo, CA
- San Ramon, CA
- Union City, CA
- Walnut Creek, CA
Ready for reliable comfort in Walnut Creek?
Schedule your free quote today or give our team a call.
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