HVAC & AC Repair in San Leandro, CA

Trusted HVAC Contractor in San Leandro

Therma Tech's East Bay expansion brings full residential and light-commercial HVAC service to San Leandro. The city's blend of tightly packed pre-war bungalows in the older neighborhoods, mid-century ranches near Bay-O-Vista, and industrial and retail buildings along the Marina and Doolittle corridor means our trucks carry parts for a wide span of equipment ages on any given day.

In older San Leandro houses the recurring theme is a furnace that outlived the ductwork attached to it. Original gravity-system conversions, undersized returns, and disconnected crawlspace runs are common, and they cap the performance of whatever equipment sits in front of them. We measure static pressure as part of the diagnostic so you can see whether the problem is the system itself or the air path around it — a distinction that frequently saves customers thousands.

For San Leandro businesses we service rooftop packaged units, split systems, and light commercial heat pumps, and we can set up a preventive maintenance agreement with priority response and no overtime billing so a Friday-afternoon failure doesn't turn into a weekend closure.

Whether it's a house near Estudillo or a storefront on East 14th, the process is the same: an honest diagnostic, written pricing before work starts, permits handled where required, and a one-year warranty on repairs. Financing is available upon approval on qualifying installs, and we file the rebate paperwork for heat pump conversions on your behalf.

Services Available in San Leandro

• AC Repair & Installation
• Heating & Furnace Repair
• Heat Pump Installation & Service
• HVAC Tune-Up & Maintenance
• Commercial HVAC Service

Why San Leandro Homeowners Choose Therma Tech

• Same-day appointments across San Leandro
• Free diagnostic with any approved repair
• Upfront, written pricing — no surprises
• NATE-certified, background-checked technicians
• Financing available upon approval on new installs
• Carrier authorized dealer with full warranty support