
Expert Commercial Roofing Services in San Jose
In a city where innovation powers progress, San Jose businesses need commercial roofing systems that can keep up. At Citadel Roofing & Solar, we’ve been serving California’s community for over three decades. Our commercial team brings precision, speed, and deep industry knowledge to every project.
Industries Served:
Commercial:
- Retail
- Restaurant
- Office
- Hotels
Industrial:
- Warehouse
- Manufacturing facilities
Tailored Roofing Solutions for Bay Area Businesses
Every commercial building has its own challenges, from roof type to square footage. Our team brings expert insight and quality materials to help you find the right roofing solution for your business.
Roof Installation & Replacement
Get a roof that’s built to perform and built to last. Our crews install advanced commercial roofing systems using materials designed to handle the California sun, lower energy costs, and deliver long-term durability. We keep the process clean, fast, and disruption-free.
Waterproofing Services
The Bay Area’s rain makes proper waterproofing a must. Our high-performance coatings and sealing systems safeguard your property from costly water damage, mold growth, and structural damage.
Repairs and Maintenance
Unexpected leaks, small cracks, pooled water, and minor problems can turn into big problems quickly. We’re here with timely repairs and ongoing maintenance to make sure you have a reliable roof through every season.
24/7 Emergency Services
When urgent problems arise, Citadel responds fast. We offer 24/7 emergency roofing support for commercial properties across San Jose.
Solar Solutions
Pairing your new roof with solar isn’t just smart; it’s efficient. Our integrated roofing and solar solutions help San Jose businesses cut energy costs, reduce emissions, and future-proof their operations—all with one trusted team.
Experiencing a roofing emergency?
Comercial Roofing Systems
Properties vary in size, design, and function, so we tailor each roofing system to match your building’s unique needs. Our San Jose commercial roofing team specializes in:
- TPO
- PVC
- Metal Roofing
- Roof Coatings
- Shingles
We’ll help you weigh performance, styles, and budget to find the ideal solution for your business.
Manufacturers
We partner with industry-leading manufacturers to give our San Jose customers the highest-quality roofing materials on the market that hold up for the long haul.







Does Your Roof Need Replacing?
Don’t wait for an emergency. If you’re seeing any of these signs, it’s time to talk to an expert:
- Stained ceilings or walls
- Peeling, cracking, or bubbling roofing
- HVAC systems working overtime
- Uneven temperatures throughout your space
We’ll assess the condition and help you make a plan.
Why San Jose Businesses Trust Citadel

Proven Expertise
Thousands of projects completed. Decades in roofing and solar. One partner you can trust.

Top Tier Materials
We only work with commercial-grade products that are known for quality and durability.

Safety-First Mindset
We plan every job around safety, for your people and ours. It’s part of how we operate.

Support When You Need It
24/7 support means someone’s always on call. We’re here when you need us, no matter the hour.

Modern Roof Management
Our online customer portal gives you access to project updates, maintenance reports, inspection history, and more.
Napa Customer Testimonials
Warranties
Our warranties are simple. A 20+ year material warranty, plus a 2-year workmanship guarantee from Citadel. Long-term protection because your roof should last for decades.
Get Started Today
A new roof is a big investment, but with Citadel, it doesn’t have to be a headache. We take care of it all—permits, project planning, expert installation, and solar if you need it. If your San Jose business is ready for an upgrade, let’s talk.
More Resources
If you need a new roof to protect your business assets, contact Citadel today for a free consultation.
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