Commercial Roofing
Durable. Reliable. Done Right.
Commercial Roofing in Fresno & Sacramento
At Grandmark Service Company, we’re not just another roofing contractor. We’re your long-term partner in protection, precision, and peace of mind. Whether you’re maintaining a shopping plaza in Fresno or building out a new facility in Sacramento, our team of certified roofing pros delivers systems that are engineered to perform and built to last.
We’ve been in this business for nearly three decades — and we know what it takes to protect your investment.
Why Grandmark is the Right Choice for Commercial Roofing
Your roof isn’t just part of your building — it’s part of your brand. It needs to look sharp, stand strong, and work flawlessly through California’s scorching summers and winter rains. That’s where we come in.
Here’s what makes us the top choice for commercial roofing in Fresno and Sacramento:
✅ GAF Master Elite® Certification
Less than 2% of contractors nationwide earn this distinction. It means we’re backed by the #1 roofing manufacturer and can offer industry-leading warranties.
✅ Local Experience You Can Trust
From high-wind zones in Sacramento County to blazing summer heat in Fresno, we understand what your building is up against. We design with climate, code, and your budget in mind.
✅ Licensed, Bonded & Insured
No shortcuts. No surprises. We handle permits, safety compliance, and inspections — so you don’t have to.
✅ 1,000+ 5-Star Reviews
Our customers don’t just like us — they trust us. Read our reviews and see why we’re one of the highest-rated commercial roofers in Central California.
✔ $0 Interest Financing 5 up-to Years
✔ 25+ Years of Expertise
✔ Lifetime Warranties
✔ Compliance & Safety
✔ Satisfaction guaranteed
Commercial Roofing Services We Offer
We work with property managers, developers, and business owners to handle every type of commercial roof project — from small leak repairs to large-scale roof replacements.
Roof Replacement
Time for a new roof? We help you choose the right materials for performance, energy efficiency, and aesthetics — and we install it with care and precision.
Roof Repair
Small leaks turn into big problems fast. We offer emergency repair services and detailed inspections to catch issues early.
Roof Coatings & Restoration
Extend the life of your existing roof with high-performance coatings. Reflective and elastomeric coatings lower energy costs and resist UV damage.
Emergency Services
Storm damage? Leaks after hours? Our emergency response team is available when you need us most.
Commercial Roof Inspections
Get clear, actionable reports for insurance, compliance, or long-term planning. Great for due diligence or annual maintenance planning.
Sustainable Roofing Solutions
Ask about cool roofing systems, energy-efficient insulation, and eco-friendly options that reduce your carbon footprint and operational costs.
Types of Commercial Roofing We Install
Every business is different. That’s why we offer a range of commercial roofing systems tailored to your building type, structure, and goals.
✔️ TPO (Thermoplastic Polyolefin)
Lightweight, UV-resistant, and cost-effective. A favorite for low-slope and flat roofs.
✔️ PVC (Polyvinyl Chloride)
Durable, chemical-resistant, and fire-safe. Ideal for restaurants or facilities with grease exposure.
✔️ EPDM (Ethylene Propylene Diene Monomer)
Rubber roofing that stands up to extreme weather and UV radiation. Long-lasting and low-maintenance.
✔️ Modified Bitumen
Reinforced with polymers for added flexibility and strength. Great for older buildings or retrofit projects.
✔️ Metal Roofing
Sleek, strong, and sustainable. Excellent lifespan and energy performance — perfect for showrooms, schools, and warehouses.
Customer Reviews
📍 Serving Fresno & Sacramento With Local Knowledge
We don’t just service your cities — we know them inside and out. That local insight lets us deliver faster service, better recommendations, and smarter project timelines.
Sacramento Service Areas
Midtown
Natomas
Arden-Arcade
Land Park
Rancho Cordova
Elk Grove
Fresno Service Areas
Clovis
Madera
Fig Garden
Sunnyside
Tower District
Fowler
We also work with surrounding communities and regional commercial hubs across the Central Valley.
Get a Free Commercial Roofing Quote
📞 Get a Free Commercial Roofing Quote
When you work with Grandmark, you get more than a roof — you get a team who takes your business seriously.
Whether you need a new roof installation, emergency repair, or a long-term maintenance partner, we’re here to help. Let’s start with a free inspection and honest conversation.
📍 Serving Fresno & Sacramento
📞 (559) 282-3568 or (916) 238-0620