Solar installer

A1 Guaranteed Heating Air

Name: A1 Guaranteed Heating Air
Address: Vallejo, CA, 94589, US
Telephone: (707) 645-0734

Based at Vallejo, CA 94589. Installed solar on 11 homes since 2023 in California. Installing since 2013. Latest install on record: February 2024.

(707) 645-0734

Homes since 2023: 11
Median price: —
Typical system: 5.9 kW
Leased or PPA: 0%

Price

Public records don’t show enough systems bought outright from A1 Guaranteed Heating Air (at least 10) for a price. Ask for a quote in dollars per watt to compare it with the California median.

9% of its recent systems included a battery.

Where it installs

Counties with homes it installed since 2023, busiest first.

Solano County, CA · 6 Contra Costa County, CA · 2 Napa County, CA · 2 Alameda County, CA · 1

By state

State	Homes	Median
California	11	—

Homes installed since 2023.

Installed prices and installers from public installation records: Lawrence Berkeley National Laboratory’s Tracking the Sun (systems installed through 2025) and state program files from California, New York, New Jersey, Connecticut, Illinois and Oregon, which run into 2026. Prices are in dollars per watt of panel capacity (DC), before rebates and tax credits, for homes that bought their system; leased systems and systems with batteries are left out.