What to Ask a Commercial Roofer Before You Sign the Contract
Your roof covers your entire facility and is one of your most important assets – and, ironically, one that no one thinks about until something goes wrong. It’s easy to make a snap decision in crisis mode but hiring a roofing company without checking the following details could turn small problems into even larger ones. Or a simple problem can become a business-stopping emergency. Here’s what to ask any roofing contractor you are considering entrusting with your roof, to help ensure a good installation.
What is your experience with commercial roofing?
While residential roofing experience is valuable, commercial roofing is a completely different arena. From structural design and material requirements to code compliance and installation methods, commercial projects demand specialized tools and expertise. A contractor who mainly handles homes may lack the knowledge and equipment needed for larger-scale, flat-roof systems or custom commercial builds. Look for a team with proven experience across a range of commercial properties—because what works for a restaurant won’t necessarily work for a warehouse or medical facility.
What is your safety record?
A contractor’s insurance coverage is a critical part of jobsite safety. Anyone on your roof—whether it’s the roofer’s crew, subcontractors, or even your own employees—can pose a liability risk. That’s why every commercial roofing contractor you consider should carry proper licensing and full insurance, including workers’ comp and general liability. Choosing someone who cuts corners on legal protections may signal they’ll cut corners on your roof too—putting your building and business at risk. Always verify documentation before work begins. You can check our licenses.
What roofing systems do you specialize in?
Commercial roofing isn’t one-size-fits-all. Materials like PVC, TPO, EPDM, and modified bitumen each require unique installation methods and equipment. An experienced contractor should not only be certified to install specific systems but also explain why one system is better suited to your property’s structure, climate, and energy-efficiency goals.
Follow-up to ask:
“Can you walk me through the pros and cons of each system for my building type?”
Do you offer a detailed proposal and timeline?
A professional contractor should provide a detailed written proposal—not just a verbal estimate. This proposal should outline the scope of work, material specifications, timeline, safety measures, payment schedule, and warranty terms. A clear timeline helps reduce disruption to your operations and keeps the project on track.
Follow-up to ask:
“What’s your average turnaround time for projects like mine, and how do you handle unexpected delays?”
What type of warranty do you provide?
The best contractors stand behind their work with a dual warranty: one from the manufacturer for the roofing membrane (often 15–30 years) and another for workmanship (usually 1–10 years). Ask whether warranties are non-prorated, transferable, and whether they include leak coverage or wind uplift protection.
Follow-up to ask:
“If an issue comes up after installation, how quickly do you respond, and is service included under warranty?”
What safety protocols do you follow?
Commercial job sites involve height, electrical equipment, and sometimes active business operations. The contractor should follow OSHA standards, use proper fall protection, and maintain a documented safety plan. Ask if their crews undergo regular safety training and how they communicate hazards during the job.
Follow-up to ask:
“Do you assign a safety officer or supervisor on-site during the project?”
Hiring the right commercial roofing contractor is more than just comparing prices—it’s about choosing a professional partner who understands your building, your business, and the risks involved. These questions help you filter out inexperienced or underqualified roofers and give you confidence that the project will be done right the first time.
Ready to ask some questions?
Ready to discuss your roofing project with a contractor who specializes in high-performance commercial systems like PVC? Contact Royalty Roofing for a consultation and custom quote. Our certified team is here to protect your investment with expert installation, full warranties, and clear communication every step of the way.