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

50 Years in Business

Heating, Plumbing & Air Conditioning in Concord, CA

Stewart Heating, Plumbing & Air Conditioning has been providing plumbing, heating and air conditioning in Concord, CA since 1974. We aren’t just a plumbing & HVAC contractor to call when you need your pipe, furnace or AC repair in Concord. Additionally, timely HVAC repair is crucial for maintaining the efficiency and longevity of your system, ensuring it continues to provide optimal comfort and air quality in your home.

We also provide home energy audits with a focus on whole home energy efficiency. That means that in addition to normal HVAC solutions, our customers can use us for home energy efficiency upgrades.

Our customers are very important to us. We believe business is done right by truly serving our customers with the best services & products. You can count on us as your local HVAC & plumbing contractor in Concord, CA for reliable and efficient HVAC and plumbing solutions ranging from scheduled maintenance to complicated repairs to a heating & air conditioning installation.

Air Conditioning Services

When the scorching summer heat becomes unbearable, it can be highly frustrating to find your air conditioner malfunctioning. Fortunately, Stewart’s Heating, Plumbing & Air Conditioning provides prompt and reliable air conditioning services in Concord. Our services include air conditioning repair  & installation. With our extensive experience as a full-service HVAC contractor since 1974, we cater to both residential and commercial customers in Concord, CA.

Air Conditioning Installation in Concord

When it comes to air conditioning installation in Concord, we are the trusted experts. Our team is dedicated to providing efficient and customized cooling solutions for your needs. We specialize in installing high-quality Bryant air conditioning systems, guaranteeing optimal performance and comfort in your space. Whether it’s for your home or office, our professional installation services ensure that you receive the best cooling solution tailored to your specific requirements.

Give us a call today to discover the benefits of energy-efficient central AC installation. Our knowledgeable technicians will guide you through the process and answer any questions you may have. Don’t forget to ask about our energy audit, designed to help you save money while enjoying the perfect climate. Trust us for all your air conditioning needs in Concord, and experience our exceptional service and expertise firsthand.

AC Repair

When your air conditioner malfunctions, count on Stewart’s  for prompt and reliable AC in Concord, CA. Our experienced technicians swiftly diagnose and resolve issues such as burnt-out motors, low refrigerant levels, fused contractors, and compressor problems. If your system cannot be repaired, we can provide you with an estimate for air conditioning replacement.

Heat Pump Services

At Stewart Heating and Air Conditioning, we provide comprehensive heat pump services in Concord, CA, including repair, installation, and maintenance. Whether you need a new heat pump installed or your existing one repaired or maintained, our team of skilled technicians is ready to help. We offer a wide range of heat pump services to ensure your system operates at peak efficiency and keeps your home or business comfortable all year round.

With our expertise and commitment to quality service, you can trust us for all your heat pump service needs in Concord, CA. Contact us today to schedule your heat pump repair, installation, or maintenance service and enjoy reliable and efficient heating and cooling all year round.

Heating Service in Concord, CA

If you want your Concord home to stay warm and toasty without breaking the bank, you’ve come to the right place. We offer gas furnaces with extremely high Annual Fuel Utilization Ratings (AFUE), and variable speed fan motors for quiet, efficient comfort. For even greater efficiency, a hybrid heating system uses a high efficiency gas furnace and electric heat pump to provide optimal energy usage throughout the heating season. Our services include furnace installation in Concord. We also provide seasonal maintenance and repair work for any make and model of equipment.

Furnace Repair & Maintenance

When you need furnace repair in Concord, CA call the heating experts at Stewart Heating, Plumbing & Air Conditioning. Our technicians are knowledgeable and can quickly repair your heating system.

Maintaining your HVAC system is very important if you want it to run efficiently, and last as long as it was manufactured to last. A neglected heating and air conditioning system might work for you each season, but it will begin to lose efficiency, and can have premature problems, costing extra money to repair. Stewart’s seasonal maintenance plans are low cost ways to ensure your HVAC system is running at peak performance. We will clean and inspect your equipment for smooth operation.

If your indoor comfort system is not functioning correctly, our experienced technicians can help. We will quickly arrive and diagnose the problem so you experience as little down time as possible. Our extensive knowledge and experience in the HVAC field means we know how to quickly find the real problem with your system. This saves you the extra time and expense associated with lack of experience and poor troubleshooting. Once the problem is determined, we will give you our recommendations on the best action to take for your specific situation.

Home Energy Audit in Concord, CA

A home energy audit, also known as a home energy assessment, can help you understand your home’s energy use. An audit can help you determine how much energy your home uses, where your home is losing energy, and which problem areas and fixes you should prioritize to make your home more efficient and comfortable.

Stewart Heating & Air Conditioning will listen to your comfort and efficiency concerns, and then use a blower door and thermal camera to find the most cost-effective ways to increase comfort and efficiency in your home. It will save you money over the long term. Get a home energy audit today!

HVAC Installation & Replacement

Stewart’s is your trusted, local Concord heating and air conditioning contractor, and we offer industry best installation services for reliable and efficient comfort control. We are a NATE certified contractor, which is a certification only earned by best of breed contractors with proven expertise in the field. Many things go into the proper installation of a new system. Without the proper design and installation, a system cannot run as efficiently as designed, and can even cost hundreds of extra dollars to run each year.

For a Concord HVAC contractor you can trust, simply call (925) 203-9141. We will show you what true customer service is really like.


If your home’s toilets, pipes, showers, or other plumbing fixtures are in need of service, you need the most reliable residential plumber in Concord, CA, call Stewart Heating, Plumbing & Air Conditioning!

You can rely on Stewart’s professional plumbers in Concord, CA with years of experience repairing pumps, pipes, drains, bathrooms & home kitchens. Our highly trained plumbing technicians pride themselves on their professional craftsmanship, punctuality and appearance.

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