About Us
Since 1974 Stewart Heating, Plumbing & Air Conditioning has been dedicated to providing the best HVAC solutions for your needs, including commercial, industrial & residential heating and air conditioning in Pittsburg, CA & Contra Costa County. We do our projects right the first time and it shows, as our company is built on referral business. In 2008, approximately 65% of our business was 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.







Customer Testimonials



Keep your systems running smoothly with our tailored maintenance plans. Prevent costly breakdowns and maximize efficiency with regular tune-ups.
One preventative plumbing maintenance visit on site.
15% off all plumbing repairs performed under the agreement.
One year warranty on parts and labor.
Priority service scheduling, front of the line service (48 hr) normal business hours.
5% discounts on fixture and water heater replacements.
Water heater flushed and inspected for safe operation.
Comprehensive plumbing, inspection checklist - includes diagnostics and testing of plumbing fixtures, water heater, and piping systems.
Your heating, ventilation and air conditioning equipment needs maintenance to run reliably, and efficiently. Neglecting maintenance can end up costing you much more than the maintenance itself. We provide maintenance for any make and model of HVAC equipment, for both residential and commercial customers.
Less breakdowns. 90% of all equipment breakdowns have been attributed to lack of maintenance.
15% immediate discount savings. Maintenance can actually pay for the first several months of the membership cost.
Equipment serviced on an annual basis. Factory recommendations are to have the equipment serviced at least once per year.
Will not void factory warranty. Just like a car, if the equipment is serviced annually, factory warranty will remain valid.


Financing
0% APR for 60 months on qualifying system purchases*
Financing Available with Approved Credit!
Special financing offered through the Bryant® Credit Card, issued by Wells Fargo Bank, N.A. Equal Housing Lender.
0% APR for qualifying purchases — monthly payments required.
Standard 28.99% APR applies for non-promotional balances.
Subject to credit approval. Terms and conditions apply.
📞 Call 1-800-431-5921 for details.
Info accurate as of 01/01/2025.*

