They showed up right on time, did a full inspection of my system, and even cleaned out the filters.
Eugene Shaw
G"Informative, Clear, and Concise Estimate"
Efficient, clean work and very competitive pricing.
George Brooks
B"Very Professional"
Very thorough in diagnosis and repair.
Brian Barone
A"Honest Diagnosis and Thorough Explanations"
They come quickly to my house, give honest diagnosis and give thorough explanations as to what's wrong.
Anna Reid
B"Excellent service, professional"
Excellent service, professional and fixed the problem efficiently.
Bob Berggren
L"Totally Professional and Reassuring"
How reassuring to know I can rely on this company whose owner actually answers the phones!
Linda
The maintenance crew at Cali HVAC is top-notch
The maintenance crew at Cali HVAC is top-notch. They showed up right on time, did a full inspection of my system, and even cleaned out the filters. Everything is working great now, and they gave me tips for the future too. Solid service all around!
Eugene Shaw
Informative, Clear, and Concise Estimate
Informative, clear, and concise estimate. Efficient, clean work. And very competitive pricing. Plus nice people with good communication skills.
George Brooks
Very Professional
Very professional. Fast, on-time response. Very thorough in diagnosis and repair. Oleg was great to work with. I would definitely recommend this company. Thank you.
Brian Barone
Honest Diagnosis and Thorough Explanations
This is the 3rd time I have used Cali HVAC. They come quickly to my house, give honest diagnosis and give thorough explanations as to what's wrong. They also call later in the week to see how the system is working. We will be using their services in the future.
Anna Reid
Excellent service, professional
Excellent service, professional and fixed the problem efficiently. Thanks!
Bob Berggren
Totally Professional and Reassuring
Tom, the technician/plumber for Cali HVAC, was here as scheduled, was totally professional, and eagerly answered my many questions. This was not a follow-up call because all previous HVAC work had been completed. I just needed some additional plumbing work to be done in my home, and the owner graciously accommodated me. How reassuring to know I can rely on this company whose owner actually answers the phones! Thank you, Cali HVAC!
Serving Brentwood, Antioch, Walnut Creek, San Ramon, Danville, Martinez, Oakley, Pleasant Hill, Lafayette, Orinda, Moraga and beyond
HVAC Contra Costa County
Keep your heating, ventilation, and air conditioning system in peak condition with Cali HVAC as your trusted HVAC company. Our approach combines thorough inspections, precise maintenance, and timely repairs to ensure your system runs smoothly all year round. Whether you're battling the summer heat or the winter chill, Cali HVAC's team is equipped with the latest tools and knowledge to address any issue, big or small. Our HVAC company prioritizes energy efficiency and comfort, aiming to extend the lifespan of your HVAC unit and improve your indoor air quality.
Choose an HVAC company that guarantees comfort and efficiency. Dial (925) 397-2170 to connect with the experts at Cali HVAC.
At Cali HVAC, we keep homes and businesses in Concord and the surrounding Contra Costa County communities comfortable year-round. Our licensed, experienced technicians deliver fast, dependable heating, cooling, and air quality solutions tailored to your needs—and we stand behind every job we do.
Why Choose Us:
Prompt, reliable service with same-day and weekend availability
Skilled, fully trained technicians with years of hands-on experience
Flexible payment plans, financing options, warranties, and free estimates
Clear communication from start to finish on every project
Carrier Factory Authorized Dealer with access to premium equipment and resources
Comprehensive residential and commercial HVAC and air quality services
Carrier Factory Authorized Dealer with top-tier systems.
Comfort That Fits Your Budget
Financing, payment plans, warranties, and free estimates.
Expert, Licensed Technicians
Factory-trained, fully licensed pros for every HVAC job.
Fast, Reliable HVAC Service
Same-day service, weekend appointments, and on-time arrivals.
Coupons & Discounts
Free Estimate
For HVAC Installation
Get a free estimate with every HVAC system installation. Give us a call to learn more!
Cannot be combined with other offers, applied to previous purchases, taxes, or shipping. No cash value. Void if copied or altered. Other restrictions may apply.
Valid
Nov 1, 2025
- Apr 30, 2026
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Free Estimate For HVAC Installation