Commercial Roofing Solutions for Southern California Businesses
Protect your property investment with expert commercial roofing, premium materials, and proven workmanship. Serving Upland, San Bernardino, Los Angeles, and Orange County for over 36 years.
Built for Demanding Commercial Environments
Comprehensive Commercial Roofing Systems and Maintenance
T & G Roofing and Solar Company Inc. specializes in high-performance commercial roofing for businesses, property managers, and facility owners throughout Upland, San Bernardino County, Los Angeles County, and Orange County. Our commercial service division delivers more than just a new roof. We provide a complete suite of solutions: from full replacement and reroof projects to waterproofing, large-scale repairs, and ongoing maintenance programs. Every project is managed with meticulous attention to detail and a strict material protocol: we only use number one grade roofing materials from leading manufacturers like GAF, CertainTeed, and Owens Corning. Our experienced crews are commercial roofing specialists, not temporary labor, ensuring the installation is done right the first time, every time. Whether you operate a retail center in Claremont, manage industrial facilities near Ontario Airport, or oversee multi-unit complexes in Pomona, we provide the technical expertise and long-term reliability you need to protect your business assets.
Trusted Expertise and Proven Reliability
Why Southern California Businesses Choose T & G for Roofing
Choosing the lowest bid for your commercial roofing project often means sacrificing quality and exposing your property to future risk. At T & G Roofing and Solar, our 36-year track record is your assurance that every commercial project meets the highest standards of safety, durability, and professional ethics. We hold the GAF President’s Club Master Elite status, a distinction earned by less than 1 percent of roofing contractors nationwide. This status allows us to offer the exclusive Golden Pledge Warranty, covering both materials and workmanship for up to 25 years on qualifying systems. Our in-house team is deeply familiar with the unique requirements of commercial properties: flat and low-slope systems, reflective coatings for energy efficiency, and complex drainage integration. We never use seconds or surplus materials, and we stand behind our work with documented warranties. If you manage properties in Rancho Cucamonga, Chino, or across San Bernardino County, trust the contractor who will still be here to honor your warranty a decade from now.
Commercial Roofing Features and Project Process
Systems, Technologies, and How We Work With You
Our commercial roofing services include complete reroofing, targeted repairs, leak detection, annual maintenance programs, and advanced silicone or reflective roof coatings for UV protection and energy cost reduction. We install and maintain a wide range of systems: single-ply membranes, built-up roofing, tile, and composition systems designed for large-scale commercial and multi-family applications. Our process starts with a thorough inspection and consultation, including detailed roof condition reports and clear recommendations suited to your building’s needs. Property managers and owners receive transparent proposals with no hidden costs, and our work crews prioritize safety and site cleanliness throughout the project. We coordinate closely with your operations, minimizing disruption to tenants or business activities. From the first assessment to warranty documentation, you have a direct line to our project management and service team, ensuring responsive communication for urgent repairs, insurance claims, and routine inspections.
Peace of Mind for Property Managers and Owners
Warranties, Documentation, and Long-Term Support
When you invest in commercial roofing with T & G, you gain more than a roof. You secure a partnership with a contractor known for meticulous documentation, clear communication, and transparent warranty coverage. Our commercial clients rely on us for board meeting support, proposal documentation, and repair tracking systems that simplify property management and protect professional reputations. Every project includes a manufacturer-backed warranty, like the GAF Golden Pledge, plus our own in-house workmanship and no-leak guarantees. We maintain a full archive of service records for repeat clients, making it easy to track repairs, schedule preventative maintenance, and provide documentation during property transactions or insurance reviews. For businesses, HOAs, and property managers in Upland, Montclair, Glendora, and throughout Southern California, T & G stands as the trusted name that delivers premium value today and lasting support for years to come.
Commercial Roofing Questions and Answers
What to Know About Commercial Roofing Services
What commercial roofing systems does T & G install?
We install single-ply membranes, built-up roofing, tile, and composition systems for commercial, industrial, and multi-family properties across Southern California.
Can you work around our business operations during a project?
Yes. We coordinate schedules to minimize disruption to tenants and daily operations, maintaining clear communication and site cleanliness throughout every commercial project.
What warranties come with commercial roofing projects?
Every project includes the GAF Golden Pledge manufacturer warranty plus our in-house no-leak and workmanship guarantees, covering both materials and labor for your protection.
How do you handle documentation for property managers?
We provide detailed inspection reports, repair logs, warranty documents, and maintenance schedules, giving property managers everything needed for board reporting and insurance reviews.
Why should we avoid the lowest bid on a commercial roof?
Low bids typically mean inferior materials or inexperienced labor. A failed commercial roof risks tenant safety, liability, and far greater repair costs down the road.

Client Experiences in Commercial Roofing






