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Renewable energy jobs at Citadel Roofing and Solar

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Vacaville, CA 251–500 employees Solar · Energy storage citadelrs.com
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Citadel Roofing and Solar
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About Citadel Roofing and Solar

Company Overview

Name

Citadel Roofing and Solar

Headquarters

Vacaville, United States

Founded

1991

Size

Approximately 700 employees ranged in recent years. Revenue of $90.9 million (source: zoominfo.com).

What They Do

Citadel Roofing and Solar is a California-based company specializing in residential new construction roofing, reroofing, retrofit solar, and battery/energy storage solutions rather than utility-scale renewable generation (source: citadelrs.com). Their business model centers on integrated roofing and solar delivery with in-house crews handling roofing, solar, and battery/storage installations, ensuring quality workmanship and service (source: citadelrs.com). The company serves homeowners, homebuilders, businesses, and commercial building owners across California, offering roof-plus-solar packages, solar retrofits, and energy storage systems (source: zoominfo.com). Citadel markets a broad range of equipment brands including CertainTeed, Enphase Energy, Fronius Solar Energy, Generac, LONGi, LG Electronics, Qcells, REC Group, SMA, SnapNrack, SolarEdge, Sunrun, and Tesla Powerwall, providing flexible payment options such as cash, loans, leases, and power purchase agreements (source: consumeraffairs.com). Their extensive California footprint covers Northern, Central, and Southern regions, emphasizing integrated roofing and solar services with a strong focus on residential new construction and retrofit markets (source: citadelrs.com).

Projects & Track Record

Citadel Roofing and Solar has established itself as a market leader in Northern California's residential new-construction roofing and solar industry, with a strong track record in reroofing and retrofit solar projects (source: newswire.com). Their projects span a wide geographic area across California, including major offices and service locations in Vacaville, Roseville, Davis, Valencia, and Santa Rosa, supporting a broad client base of homeowners, homebuilders, and commercial building owners (source: zoominfo.com). The company’s integrated approach with in-house crews allows for seamless coordination of roofing, solar, and battery storage installations, enhancing project efficiency and quality (source: citadelrs.com). Their portfolio includes roof-plus-solar packages and retrofit solar systems that leverage leading solar technology brands, positioning them as a trusted partner in California’s residential and commercial solar markets (source: consumeraffairs.com).

Recent Developments

In August 2026, Citadel Roofing and Solar was acquired by MARS Energy Group, a move that strengthened MARS Energy Group’s position in the California roofing and solar market and underscored Citadel’s leadership in Northern California’s residential new-construction roofing and solar industry (source: newswire.com). This acquisition reflects the company’s strong market presence and growth potential within the integrated roofing and solar sector. Additionally, Citadel continues to expand its service footprint across California, maintaining multiple offices and broadening its reach in Northern, Central, and Southern California markets (source: citadelrs.com).

Working There

Citadel Roofing and Solar offers a variety of roles primarily focused on roofing, solar installation, battery/storage installation, field operations, project coordination, sales, and customer support, reflecting the company’s in-house crew model (source: citadelrs.com). With offices in Vacaville, Roseville, Davis, Valencia, and Santa Rosa, employees have opportunities across multiple regional locations throughout California (source: zoominfo.com). The company culture emphasizes a family-owned-and-operated identity, long-standing experience, and a strong commitment to quality workmanship and customer service, fostering a supportive and skilled work environment (source: linkedin.com).

Last updated Sep 26, 2026 · Report an issue

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