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Citadel Roofing & Solar

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
Overall Rank · 2026 List
No. 68 Solar Contractor in the United States
Solar kW · 2025
58,391
solar kilowatts installed
Storage kWh · 2025
26,964
storage kilowatt-hours installed
Primary Service
Installer
C&I
5,617
kW
Residential
52,774
kW

2025 Solar Installations by State & Territory

State / Territory kW Installed 2025
California 58,391 View state list →
← Back to 2026 Top Solar Contractors
Prior Prior
Lists
2012 – 2025
2025
Rank #88  ·  2025 List  ·  2024 Installation Data
C&I | R · Installer
39,688
2024 Installation Data
View 2024 Installation Data by State
California 39,688
View 2025 contractor list →
2024
Rank #98  ·  2024 List  ·  2023 Installation Data
Res & Com · Installer · Storage: 6,183 kWh
30,713
2023 Installation Data
View 2023 Installation Data by State
California 30,713
View 2024 contractor list →
2023
Rank #90  ·  2023 List  ·  2022 Installation Data
Residential · Installer · Storage: 5,590 kWh
28,452
2022 Installation Data
View 2022 Installation Data by State
California 28,452
View 2023 contractor list →
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  • Home
  • Top Solar Contractors
  • Articles
    • Most Recent Posts
    • News
      • Latest News Items
      • SPW State News Hub
      • IRA/OBBBA coverage
      • Solar tariffs
      • U.S. manufacturing updates
    • Featured
      • Latest Feature Stories
      • Benchmarking U.S. Solar Manufacturing
      • SPW’s Rising Stars
      • Trends in Solar
      • The Solar Explorer
  • Policy
    • Latest policy headlines
    • IRA/OBBBA Coverage
    • Tariffs and Court Cases
  • Markets
    • Residential
    • Commercial
    • Community Solar
    • Utility
    • Storage
  • Products
    • 2026 Top Products application
    • Winners of SPW’s 2025 Top Products
    • Batteries and Storage
    • Electric Vehicle (EV)
    • Inverters
      • U.S. solar inverter manufacturers
    • Racking and Mounting
      • U.S. solar mounting manufacturers
    • Software
    • Solar Panels
      • U.S. solar panel manufacturers
  • Resources
    • About SPW
    • Digital Issues
    • Event Coverage
    • Podcasts
    • Product Manufacturing Locations
      • U.S. solar inverter manufacturers
      • U.S. solar mounting manufacturers
      • U.S. solar panel manufacturers
    • Solar Classrooms
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    • Videos
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    • Webinars / Digital Events
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