Citadel Roofing & Solar
Vacaville, California
Year Founded: 2015
citadelrs.com
Total Kilowatts Installed Since Founded: 204,865
Number of Employees: 1,000
Rank: 68
Citadel Roofing & Solar is California’s installer of choice for roofing, solar, and battery energy storage needs. With 30+ years of experience, our team has installed roofs, batteries, and solar systems up and down California, earning the trust and respect of homeowners, businesses, and homebuilders alike. Citadel Roofing & Solar is recognized for its commitment to quality workmanship, industry expertise, and long-standing reputation within the construction and renewable energy sectors.
★ 2026 Top Solar Contractors
#68
Solar kW · 2025
58,391
solar kilowatts installed
Storage kWh · 2025
26,964
storage kilowatt-hours installed
Primary Service
Installer
2025 Solar Installations by State & Territory
| State / Territory | kW Installed 2025 | |
|---|---|---|
| California | 58,391 | View state list → |
Prior
Prior
Lists 2012 – 2025
Lists 2012 – 2025
2025
39,688
2024 Installation Data
View 2024 Installation Data by State
| California | 39,688 |
2024
30,713
2023 Installation Data
View 2023 Installation Data by State
| California | 30,713 |
2023
28,452
2022 Installation Data
View 2022 Installation Data by State
| California | 28,452 |