Heating, Plumbing & Air Conditioning in Contra Costa County Since 1974

50 Years in Business

Air Conditioning Installation in Contra Costa County

When you need air conditioning installation in Contra Costa County call Stewart Heating, Plumbing & Air Conditioning for a free estimate. Offering quality and efficient air conditioning systems by Bryant, Stewart’s will install a high quality AC unit based on the correct specifications, installed by experienced technicians with competitive pricing. We also offer financing, subject to approved credit.

An air conditioning installation encompasses many details that need to be handled by an expert. From proper venting to a Manual “J” calculation, the details are endless. If you purchase an air conditioner that is too large, it will not help you. It will actually cost you more to run for no reason. Too small, and on our really hot days, you’ll be sweating. You need to trust a pro – like Stewart Heating, Plumbing & Air Conditioning.

We understand homeowners are looking for top quality at the best price, that is why Stewart’s will provide you with the highest quality, most efficient air conditioning equipment with the best installation in the industry.

We also have your extras that you maybe looking for such as air cleaners, humidifiers, air filters, maintenance agreements and any other HVAC services you may need.

Air Conditioner Experts

We are fully-licensed and insured for all your air conditioning needs in Contra Costa County and you can be sure the technician that answers your call will be a fully-qualified, air conditioner expert.

Our service area includes: Alamo, Antioch, Brentwood, Concord, Danville, Martinez, Oakley, Orinda, Lafayette, Pittsburg, Pleasant Hill & Walnut Creek, CA

$1,000 OFF

heat cool coupon


high efficiency heating & cooling system

*Not valid with any other offer

Designed with Your Comfort in Mind

Bryant™ air conditioners represent years of design, development and testing with one goal in mind – maximizing your family’s
comfort. Along the way, we have created new technologies that deliver the outstanding quality and energy efficiency you demand
while staying ahead of industry trends and global initiatives.

Designed To Fit Your Home – And Your Budget

Bryant offers real solutions for your home cooling needs. Our comprehensive selection of air conditioners have been designed to fit virtually any home and a variety of budgets. From our innovative and intelligent Evolution™ System line with variable-speed, two-stage, and single-stage options…to Preferred™ Series deluxe two-stage and single-stage choices…and the value-driven Legacy™ Line single-stage models, our air conditioners offer summertime comfort you can depend on.

Carl T.
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Huge thumbs up for Stewart HVAC!! Yancy, Brian and Aaron did a great job installing our new furnace and A/C and their bid was very reasonable. They also coordinated removal and re installation of some fencing and railing to get the old unit out. Thanks so much to Justin and team! Recommend them highly.