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NATE Certified Contractor in Contra Costa County, CA

Trust NATE certified contractor in Contra Costa County, CA. Stewart Heating Plumbing Air Conditioning ensures expert HVAC service. Call for top-quality care!

Whether facing summer heat or the cold winter nights, having access to reliable HVAC service makes all the difference. Not all contractors provide the same level of expertise—you deserve NATE-certified technicians who bring industry-leading skills to every job.

At Stewart Heating Plumbing Air Conditioning, we take pride in offering top-tier HVAC solutions. With over 50 years of experience and a commitment to excellence, we ensure your property remains comfortable year-round. Call today to schedule a service with a NATE-certified contractor in Contra Costa County, CA, you can trust!

The Benefits of Choosing a NATE-Certified HVAC Technician

Not all HVAC technicians are created equal. NATE (North American Technician Excellence) certification is the gold standard in the HVAC industry, ensuring that a technician has undergone rigorous training and testing to deliver superior service. Here's why working with a NATE-certified professional makes a difference:

  • Expertise You Can Trust: NATE-certified technicians undergo extensive training and exams to prove their skill in HVAC installation, maintenance, and repair. Their knowledge ensures that every job is done right the first time, minimizing errors and maximizing efficiency.
  • Energy-Efficient Solutions: A well-installed and maintained system operates more efficiently, reducing energy waste and lowering utility bills. NATE-certified technicians optimize your system's performance to help you save money while reducing your carbon footprint.
  • Reliable, Long-Lasting Repairs: Our certified experts ensure your system runs smoothly for the long haul, preventing frequent breakdowns. We diagnose and fix issues correctly, so you don't have to deal with recurring HVAC problems.
  • Enhanced Comfort & Air Quality: Proper HVAC service improves airflow, indoor air quality, and overall comfort in your home or business. Well-maintained systems keep temperatures consistent and remove airborne contaminants, making indoor environments healthier.

Choosing a NATE-certified contractor means peace of mind. You can rest assured that your heating, cooling, and air quality solutions are handled by a professional with proven expertise, ensuring top-notch performance and reliability.

A person wearing black cap and gloves is inspecting a ductless AC system

Heating, Cooling & Air Quality Solutions You Can Rely On

At Stewart Heating Plumbing Air Conditioning, we offer a full range of HVAC services to keep your property comfortable, efficient, and safe year-round. Our NATE-certified technicians specialize in:

Heating Services

  • Furnace Installation & Replacement: Upgrade to a high-efficiency furnace that keeps your home warm and lowers energy costs.
  • Furnace Repair & Maintenance: We diagnose and fix furnace issues promptly, preventing costly breakdowns and improving efficiency.
  • Heat Pump Installation & Repair: Heat pumps offer both heating and cooling solutions, and we ensure they function optimally year-round.
  • Mini-Split Heating Solutions: An excellent alternative for targeted heating needs, providing customizable comfort without ductwork.

Cooling Services

  • Air Conditioning Installation & Replacement: We install top-quality AC systems that provide reliable cooling even in the hottest months.
  • Air Conditioning Repair & Maintenance: Regular maintenance and timely repairs keep your AC unit running efficiently and extend its lifespan.
  • Mini-Split Cooling Services: These ductless systems offer flexible and efficient cooling for homes and offices with unique layouts.

Indoor Air Quality (IAQ) Solutions

Indoor air pollution is a growing concern, with pollutants like dust, mold, and bacteria affecting air quality. We provide advanced IAQ solutions to create a healthier indoor environment:

  • Electronic Air Cleaners: Replace standard filters and use a 3-stage filtration process to remove microscopic pollutants.
  • Ventilators: Exchange stale indoor air with fresh outdoor air while maintaining energy efficiency.
  • Humidifiers: Restore moisture balance in dry air, improving comfort and reducing heating costs.
  • UV Lamps: Kill mold and bacteria that accumulate in evaporator coils, improving system efficiency and air purity.

Did You Know? Indoor air can be up to 100 times more polluted than outdoor air! Contact us today to schedule an Indoor Air Quality Analysis and improve the health of your home or business.

Stewart Heating Plumbing Air Conditioning: Your Trusted Local Experts

As a Bryant Factory Authorized Dealer, Stewart Heating Plumbing Air Conditioning has been serving Contra Costa County homeowners and businesses since 1974. With over 50 years of experience, we have built a reputation for professionalism, reliability, and expert service.

Why Choose Us?

  • NATE-Certified Technicians: Guaranteed expertise and superior craftsmanship with every service.
  • BBB Accredited Business: A track record of ethical service and high customer satisfaction ratings.
  • Upfront Pricing: No hidden fees or surprises, ensuring transparency and trust.
  • Flexible Financing: Affordable payment plans for every budget, making HVAC upgrades accessible.
  • Satisfaction Guarantee: We stand behind every job we do, ensuring peace of mind for our customers.

From Pittsburg to Pleasant Hill, Lafayette to Brentwood, we provide exceptional HVAC, plumbing, and IAQ solutions to homeowners and businesses across Contra Costa County.

Schedule Your HVAC Service with a NATE-Certified Pro Today!

Don't wait until your HVAC system breaks down—ensure year-round comfort with expert service from Stewart Heating Plumbing Air Conditioning. Our NATE-certified contractor in Contra Costa County, CA, is ready to provide top-quality heating, cooling, and air quality solutions tailored to your needs. Whether you need a furnace repair in Concord, AC maintenance in Antioch, or a new heat pump in Orinda, you can count on us for reliable and efficient service.

We take pride in delivering exceptional customer care, offering transparent pricing, and ensuring complete satisfaction with every job we do. Please take advantage of our current promotions and keep your home's HVAC system in peak condition.

Call Today or Schedule Your Appointment Online to Experience the Stewart Heating Plumbing Air Conditioning difference!

Customer Testimonials

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Very professional and complete. I would recommend Stewart to anyone. Highest quality of workmanship and clean installation.

Roger S.
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Stewart Heating Plumbing Air Conditioning just did some work for us for the first time. They did an installation at my home and it turned out well. I thought the price was fair and I definitely would use them again. The technicians were very friendly and knowledgeable about their work. I highly recommend Stewart Heating Plumbing Air Conditioning and already told friends to use them.

Sami S.
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We have been using Stewart Heating Plumbing Air Conditioning since 1995. They put the original heating and air unit in the house, and we have just stayed with them. They are dependable and honest people, and they have done a good job for us every time that we have used them!

Thomas M.
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They came and did an inspection and are coming tomorrow to do the repair.

Talia T
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They replaced a regulator the first time, and then the water heater vent had to be replaced. They did great work.

Grand G
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The gentleman that serviced us was helpful, insightful, and knew what he was talking about. Overall, it was a great experience.

Gordon S