Heat out? AC down? Call Velair.
Heating and air conditioning repair and installation for homes in Contra Costa, Alameda, and Marin.
5.0 57 reviews on Google
Heating and cooling, repaired or replaced.
We work on the system you have, whatever the brand. When it's time for a new one, the estimate is free.
AC repair and installation
Warm air, no air, or a unit that won't start. Repairs and new central AC.
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Furnace repair and replacement
No heat or cold air from the vents. Gas furnace repair and replacement.
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Heat pumps
One system for heating and cooling. Installs, upgrades, and repair.
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Ductless mini-splits
Heat and cool a room, an addition, or an ADU with no ductwork.
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Maintenance
A yearly tune-up for the furnace, AC, or heat pump.
Learn moreBroken today, or planning ahead?
Something stopped working
No heat, no cooling, a strange noise, or a system that keeps shutting off. Call and tell us what it's doing. We'll book the soonest visit we can.
Call (510) 680-9929Replacing an old system
Thinking about a heat pump, a new furnace, central AC, or a mini-split? Book a free estimate at your home. We'll look at what you have and walk you through the options.
Book a free estimateWhat customers say
“Our heater was blowing cold air and our home was freezing cold. I reached out to him and within hours he came to assess and solved the problem right away.”
“…almost every HVAC company we called was fully booked for days. This team was the only one that managed to schedule a same-day visit.”
“They did an outstanding job installing our new heat pump, and everything has been working amazingly well. … They also made the permit process very easy, which was a big plus.”
“They helped my elderly mom get her heat working again, and they were so smooth, professional, and genuinely nice throughout the process.”
“Lyes was honest about all the details of my service and repair, professional, and helped me make an informed decision.”
“We had a heat pump and AC system installed along with a Google Nest, and everything was done very clean and efficiently.”

Owned by Lyes Bouhazem.
Velair Heating & Cooling is Lyes's company. He holds its California heating and air conditioning license, and customers mention him by name in review after review.
We repair the system you already have, whatever the brand, and we install heat pumps, furnaces, central air, and ductless mini-splits.
- C-20 license #1139910, active. Check it on the CSLB site
- Bonded, with workers' compensation on file
- BBB Accredited. A-rated. No complaints on file.
- Working across Contra Costa, Alameda, and Marin
Recent jobs
Installs and repairs around the East Bay.








Where we work
We cover these towns in Contra Costa, Alameda, and Marin. If you're close by and don't see yours, call and ask.
(510) 680-9929Contra Costa County
- Richmond
- San Pablo
- El Cerrito
- Kensington
- El Sobrante
- Pinole
- Hercules
- Rodeo
- Crockett
- Port Costa
- Martinez
- Pleasant Hill
- Concord
- Pacheco
- Clyde
- Walnut Creek
- Lafayette
- Orinda
- Moraga
- Alamo
- Danville
- Diablo
- Blackhawk
- San Ramon
Alameda County
- Albany
- Berkeley
- Emeryville
- Oakland
- Piedmont
- Alameda
- San Leandro
- Castro Valley
- Hayward
- Dublin
- Pleasanton
Marin County
- San Rafael
- San Anselmo
- Fairfax
- Ross
- Kentfield
- Greenbrae
- Larkspur
- Corte Madera
- Mill Valley
- Sausalito
- Tiburon
- Belvedere
- Novato
Questions
Do you charge for estimates?
Estimates for new systems are free. For a repair visit, ask about pricing when you call.
Which brands do you work on?
All makes and models.
Do you install heat pumps and ductless mini-splits?
Yes. We install and repair heat pumps, ductless mini-splits, furnaces, and central air conditioning.
What are your hours?
Monday–Saturday, 8:00 AM – 8:00 PM. Call (510) 680-9929, or book online any time.
Are you licensed?
Yes. Velair holds California C-20 license #1139910, and it is active. You can check it on the CSLB website.
What should I do if I smell gas?
Leave the house first. Then call PG&E at 1-800-743-5000, or 911. Call us once the gas company says it's safe.
Need heat or cooling fixed?
Monday–Saturday, 8:00 AM – 8:00 PM. Contra Costa, Alameda, and Marin.