Solar installer

Citadel Roofing And Solar

Name: Citadel Roofing And Solar
Address: Vacaville, CA, 95688, US
Telephone: (707) 446-5500

Based at Vacaville, CA 95688. Installed solar on 10,153 homes since 2023 in California. Installing since 2002. Latest install on record: August 2026.

(707) 446-5500

Homes since 2023: 10,153
Median price: $2.78/W
Typical system: 4.3 kW
Leased or PPA: 3%

Price

Homes that bought their system from Citadel Roofing And Solar paid a median $2.78/W installed, and the middle half paid $2.53/W–$2.86/W (7,604 systems since 2023, before incentives). That's $1.29 a watt below the California median of $4.07/W.

20% of its recent systems included a battery.

Where it installs

Counties with homes it installed since 2023, busiest first.

Contra Costa County, CA · 1,281 Fresno County, CA · 1,033 Solano County, CA · 1,012 Placer County, CA · 721 Tulare County, CA · 637 Santa Clara County, CA · 558 Alameda County, CA · 539 Kern County, CA · 525 San Joaquin County, CA · 525 Yolo County, CA · 375 El Dorado County, CA · 317 Yuba County, CA · 310 Monterey County, CA · 306 Madera County, CA · 280 San Benito County, CA · 236 Merced County, CA · 235 San Mateo County, CA · 171 Sonoma County, CA · 142 Sutter County, CA · 111 San Bernardino County, CA · 106 Los Angeles County, CA · 103 Napa County, CA · 99 Kings County, CA · 86 Stanislaus County, CA · 85 Marin County, CA · 75 San Luis Obispo County, CA · 63 Riverside County, CA · 44 Amador County, CA · 42 Ventura County, CA · 28 Colusa County, CA · 26 San Diego County, CA · 25 Orange County, CA · 11 Santa Cruz County, CA · 11 Calaveras County, CA · 6 Butte County, CA · 5 Lake County, CA · 3 Nevada County, CA · 3 Tuolumne County, CA · 3 Glenn County, CA · 1 Lassen County, CA · 1 Mendocino County, CA · 1 Santa Barbara County, CA · 1

By state

State	Homes	Median
California	10,153	$2.78/W

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.