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

Plumbing, Heating & Air Conditioning in Martinez, CA

Over the years, Stewart Heating, Plumbing & Air Conditioning has developed an outstanding reputation for our residential service with heating, air conditioning & plumbing in Martinez, CA. Our services also include home energy audits, blower door testing, thermographic inspection & blown insulation.

A large part of our business is from referrals. This enables us to focus on quality, and installing heating and cooling systems that work the first time, every time while meeting your unique design requirements. We want to be the company you tell your friends about.

Air Conditioning & Furnace Repair in Martinez, CA

Stewart Heating, Plumbing & Air Conditioning is NATE certified – we can fix any brand or model. We have years of experience repairing air conditioners & furnaces in Martinez, CA. If it can be repaired – we’ll repair it!

Our experienced technicians will arrive with stocked trucks and can complete HVAC diagnostics & repair. We pride ourselves on client satisfaction and have built a stellar reputation throughout the Contra Costa County.

Heating & Air Conditioning Installation

When you need heating & air conditioning installation, understanding heating and cooling equipment can be complicated. With Stewart Heating, Plumbing & Air Conditioning we make it simple. We install Bryant central heating and cooling systems, ductless, controls and thermostats. We can do a home energy audit and let you know what will fit your comfort needs & budget.

We are a Bryant Factory Authorized Dealer which means we have met the highest standards for superior skills, service, and a promise of 100% satisfaction guaranteed.* A Factory Authorized Dealer participate in special training throughout the year to provide solutions, installations and services to satisfy you, the homeowner.

Bryant Factory Authorized Dealers also earn North American Technician Excellence (NATE) Certification, the leading certification program for technicians in the heating, ventilation, air conditioning and refrigeration industry, and the only certification test supported by the entire industry.

If you need an estimate for a heating & air conditioning installation in Martinez, CA call Stewart Heating, Plumbing & Air Conditioning . We will exceed your expectations.

Home Energy Audit in Martinez, CA

A home energy audit, also known as a home energy assessment, is the first step to assess how much energy your home consumes and to evaluate what measures you can take to make your home more energy efficient. An assessment will show you problems that may, when corrected, save you significant amounts of money over time. Stewart Heating, Plumbing & Air Conditioning will let you know about the California Energy Rebates available to you.

Some of the things we test:

  • Blower Door Test
  • Infrared Inspection
  • Insulation
  • Indoor Air Quality
  • Carbon Monoxide Testing
  • Heating & Air Conditioning


If you’re ready have a more efficient home, call Stewart Heating, Plumbing & Air Conditioning to do a home energy assessment! We will use innovative technology to outline the areas of improvement your home requires to be more energy efficient. We back our recommendations with industry best services to implement them.

Plumbing Repair & Installation

If you need fast, reliable plumbing services Martinez, CA, call Stewart Heating, Plumbing & Air Conditioning . We can take care of any plumbing repair, installation or replacement service you may require. Whether in need of drain and sewer cleaning, sewer repair or water leak detection, we can do it all, and we do it right the first time!

Some of the home plumbing and drain cleaning services we offer:

  • Sinks, Drains, and Faucets
  • Drain Pipes
  • Bathtubs and Showers
  • Toilets
  • Septic Tanks and Sewer Lines
  • Pipe Repair
  • Water Heaters
  • Preventative Maintenance Inspection
  • Trenchless Pipe Repair
  • Garbage Disposal
  • Tree Root Removal
  • Backflow Prevention
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