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

Heating, Plumbing & Air Conditioning in Pittsburg, CA

Stewart Heating and Air Conditioning is your local plumber & HVAC contractor in Pittsburg, CA since 1974. We specialize in finding ways to best serve & save our customers money. For a free estimate on a new furnace or air conditioning installation call us at (925) 203-9141 or schedule here. Our qualified air conditioning and furnace installers are prepared to meet your energy needs and find a solution that is right for you. When you need home plumbing service in Pittsburg, CA – call us! We are the one stop for you home comfort needs.

Our HVAC technicians are qualified to identify heating and cooling issues in your Pittsburg home that can result in lowering your monthly energy bills. We stock a full inventory energy efficient furnaces and air conditioners that will add value to your home while keeping your energy bills low. Ask us about our maintenance plan or heater & AC tune-ups.

Whether you need a furnace repair, air conditioner installation, a home energy audit, or a programmable thermostat, Stewart Heating and Air Conditioning will provide the best value and most reliable service in Pittsburg, CA. Give us a call at (925) 203-9141 and let us show you why!

Air Conditioning Service

Stewart Heating and Air Conditioning can repair your central air conditioner no matter what brand it is. Whether your central AC makes odd noises, leaks, or is having problems cooling, we can fix any air conditioner. We have years of experience with many brands. When you need someone to repair your AC, call Stewart’s!

If your air conditioning system does need to be replaced and a new AC installed, we use only high quality, high efficiency AC equipment.

HVAC Maintenance

Stewart Heating and Air Conditioning provides the best air quality for your home. Stewart Heating and Air Conditioning’s professional heating & air conditioning tune-up in Pittsburg benefits customers by saving energy by ensuring their air conditioner, heat pump & furnace are functioning at the optimal level.

Consistently maintaining your central air conditioning & heating system will not only keep energy costs down but also provide a comfortable lifestyle. Give your furnace & air conditioner the best available service this summer by calling Stewart Heating and Air Conditioning. We’ll make sure that heating & cooling system is ready when you need it.

Schedule your precision heating & air conditioning tune-up in Pittsburg.

Furnace Repair & Replacement

Trust us for your furnace repair in Pittsburg, CA. If  your furnace is not heating properly, we can fix it. We are experienced with all brands and models of heating systems. We keep our trucks stocked with quality parts so that we can make the repair quickly.

We pride ourselves on reliable products and great service. So when you’re faced with the choice between replacing or repairing your heating system, you can count on Stewart Heating and Air Conditioning to help you find a solution that’s affordable & keeps your family comfortable.

Furnace Installation

Purchasing the finest equipment is a waste of money if your furnace installation is not done correctly. Stewart Heating and Air Conditioning knows heating and air conditioning extensively, and our in-depth knowledge means you receive the finest installation in town.

Home Energy Audit in Pittsburg, CA

Before making any home efficiency upgrades, it’s important to know how your home uses energy. A home energy audit is the first step to saving energy and money. Professional energy assessments generally go into great detail to assess your home’s energy use. Stewart’s energy assessments will include a blower door test, a thermographic scan, check insulation & carbon monoxide testing. Our energy auditor has the tools to determine where a home is wasting energy. Schedule a energy audit

Plumber in Pittsburg, CA

We can fix clogs and leaks before they cause damage to your home plumbing when you call Stewart’s plumbers in Pittsburg, CA. Our plumbing services include clogged & leaky sinks, drains, and faucets. We provide dependable installation and repair in Pittsburg, CA and the surrounding areas at affordable prices.

Howard C.
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We've used Stewart's Heating and Air for 25 years and have always been extremely satisfied. Jamie J. has been the technician who has come out for the last several years and we always look forward to his professionalism, friendliness and excellence in maintenance and repair. I would highly recommend both the company and Jamie's work.


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