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

Heating & Air Conditioning in Brentwood, CA

Stewart Heating, Plumbing & Air Conditioning is a licensed plumbing, heating & air conditioning contractor serving Brentwood, CA. If you have a plumbing repair or need a new furnace or air conditioner installation in Brentwood – we can do it! We’ve been providing service since 1974!

Ask us about a home energy audit, also known as a home energy assessment. We’ll assess how much energy your home consumes and evaluate what measures you can take to make your home more energy efficient. Our energy audit will show you problems that can be corrected and may save you money over time.

Air Conditioning Service

Since 1974, Stewart Heating, Plumbing & Air Conditioning has been providing air conditioning repair and installation in Brentwood, CA. We have extensive industry knowledge & competency that ensures your project or service will be done right the first time. We have an A plus rating with the BBB, NATE certified technicians & we’re a Bryant Factory Authorized Dealer.

AC Repair in Brentwood, CA

We know air conditioning inside out and can service & repair all air conditioning brands – old & new!

Whether we installed it or not, we can repair & provide maintenance. When you need the best & affordable AC repair in Brentwood, CA call us!

Heating Repair & Installation

If you’re in need furnace repair in Brentwood, CA, call the best in the business! Stewart Heating, Plumbing & Air Conditioning is there when you need them, on-time. Our highly-trained and skilled technicians are skilled in heating and heat pump repair for all brands and models. Quality heating service in Brentwood, CA is what we do! No matter what you’re repair needs are, contact Stewart Heating, Plumbing & Air Conditioning today.

If it’s time to replace your aging furnace or HVAC unit, Stewart Heating, Plumbing & Air Conditioning can find efficient & affordable heating system for your home. A high-efficiency heating system in Brentwood, CA can provide plenty of heat for your home and save money on your energy bills each month. Stewart Heating, Plumbing & Air Conditioning technicians can recommend the best energy-efficient heating system for the size of your home or office. Call us today and start saving money on your energy bills.

Home Energy Audit

Stewart’s uses blower door testing, thermographic inspections, carbon monoxide testing that will increase the comfort of your home and reduce your energy bills. Ask us for a home energy audit.


Stewart’s provides a range of plumbing services including working on bathrooms, kitchens, pumps, pipes, sewer and drains. Licensed and fully insured, we offer a variety of plumbing services to best suit your particular needs, including plumbing repair & maintenance, plumbing installation, septic tanks and sewer lines, tree root removal, water heaters, tankless water heater services, backflow prevention, faucets, toilets, sinks, clogged drains, garbage disposals and plumbing inspections.

If your home is several decades old, it may be time to consider repiping. Even if you haven’t noticed any malfunctioning pipes (like leaks or rusty water), there may be damage inside the walls. Our expert plumbers can check your pipes are in good condition and free from potentially costly damage and unhealthy contaminants.

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Ive been using Stewart Heating and Air for the last decade. Good, honest service. Today Don serviced my HVAC system. Nice fellow, professional, and on time.
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