Popular Cities
24 companies listed · 6 in Pittsburg · 8 open 24/7 · 17 open weekends · 23 rated 4.5+
Data verified October 15, 2026
The 24 companies listed for Pittsburg, CA work on furnaces, heat pumps and air conditioners. Each profile repeats what the company publishes about its hours, its license and the equipment it fits, alongside ratings and quotes drawn from public reviews.
Of the 24 companies we list here, 6 are in Pittsburg itself and 18 come from towns including Concord (8, 7 mi), Antioch (2, 6 mi) and Pacheco (2, 13 mi). 23 of the companies on this page have a rating, from 4.6 to 5.0 across 8,070 reviews; 18 have 50 or more reviews. When customers rate these companies on specific qualities, they most often praise professionalism (90%), responsiveness (84%) and quality (81%). 8 are open around the clock; 17 are open on Saturdays and 9 on Sundays. The services the companies on this page list most often on their websites are heating (5), air conditioning (4), indoor air quality (4), water heaters (3) and AC installation (2). 16 show a license on their websites; 3 list staff certifications (EPA) and 5 have a BBB rating of A or A+. Domain records put 13 websites of the companies on this page at ten or more years old; the oldest dates from 1999. 9 offer emergency call-outs; 16 offer financing or payment plans; 11 give free estimates; 9 are family- or locally-owned and 16 list coupons or special offers. We count these figures across the companies on this page; distances are straight-line, and hours and prices change, so confirm the details with the company before you book.
Round the clock availability appears in 8 of the 24 listings on this page. An overnight visit is usually a diagnosis and a temporary fix, since supply counters are shut until morning. Ask what the after hours call out is before the truck leaves.
