Choosing the right contractor for your commercial roofing project isn’t just about who offers the lowest bid—it’s about finding a team you can trust to protect your property, meet deadlines, and deliver long-term value. A poorly installed or maintained commercial roof can lead to costly repairs, energy inefficiencies, and major business disruptions.
Whether you’re planning a new roof installation, repair, or replacement, these tips to finding the perfect commercial roof contractor will help you make an informed, confident decision. From credentials to communication, every detail matters.
1. Verify Licensing, Insurance, and Certifications
The first step in selecting a commercial roofer is confirming that they have the proper licenses and insurance coverage to operate legally in your state.
✔ A valid contractor’s license shows they meet state standards.
✔ General liability and workers’ compensation insurance protect you from legal liability.
✔ Certifications from manufacturers (e.g., GAF, Owens Corning) mean they’re approved to install specific roofing systems.
You can check contractor licensing through your state’s official site or use the U.S. Department of Labor to learn about contractor labor standards: Department of Labor – Contractor Standards
2. Choose a Contractor with Commercial Roofing Experience
Not all roofers are trained for the demands of commercial roofing. Look for contractors who specialize in commercial roofing systems—flat roofs, low-slope membranes, and large-scale installations require different tools and knowledge than residential jobs.
Ask about:
✔ The types of commercial roofs they work on (TPO, EPDM, modified bitumen, etc.)
✔ Previous projects similar in size and scope to yours
✔ Their familiarity with building codes in your area
An experienced commercial roofer can spot design issues, recommend efficient systems, and avoid costly errors.
3. Read Reviews and Ask for References
Online reviews and word-of-mouth referrals are some of the most reliable ways to evaluate a contractor.
✔ Read Google, Yelp, and Better Business Bureau (BBB) reviews.
✔ Look for patterns in customer feedback—are they responsive, timely, and honest?
✔ Ask for three to five references from past commercial clients.
When contacting references, ask specific questions:
- Was the project completed on schedule?
- Were there any hidden fees or surprise issues?
- Has the roof held up over time?
A trustworthy contractor will have no problem providing references and reviews to back up their reputation.
4. Evaluate Their Safety Record
Commercial roofing is high-risk work, especially on multi-story buildings. Your contractor must prioritize safety protocols for their crew and your property.
Ask to see their:
✔ OSHA safety compliance records
✔ Written safety procedures and jobsite practices
✔ Insurance certificates to ensure adequate coverage
The Occupational Safety and Health Administration (OSHA) provides guidance on roofing safety standards here: OSHA Roofing Safety Regulations
A contractor with a clean safety record demonstrates professionalism and care—two qualities you want in a roofing partner.
5. Request Detailed Proposals and Compare Bids Fairly
Once you’ve narrowed your list of potential contractors, ask each one to submit a detailed written proposal. This should include:
✔ Scope of work
✔ Roofing materials and systems being used
✔ Labor costs and timeframes
✔ Warranty details
✔ Cleanup and disposal plans
Avoid choosing based on price alone. A very low bid may signal cut corners, subpar materials, or lack of experience. Compare bids apples to apples—are all estimates including insulation, flashing, and ventilation upgrades?
A reputable contractor won’t just offer a price—they’ll give you a clear breakdown of everything involved.
6. Understand Their Warranty Offerings
Warranties are a critical part of any roofing contract. They not only reflect the quality of the work but also protect your investment over time.
Ask about both:
✔ Manufacturer warranties on materials
✔ Workmanship warranties on labor and installation
Make sure to clarify:
- The length of coverage
- What’s included and excluded
- Who to contact if there’s an issue down the road
The right contractor will explain your warranty clearly and provide it in writing.
7. Ask About Communication and Project Management
Clear communication is essential during commercial roofing projects, which can span days or weeks. You need a contractor who:
✔ Responds promptly to emails and calls
✔ Provides a project manager or main point of contact
✔ Offers daily or weekly updates on project progress
✔ Is transparent about unexpected changes or delays
Set expectations early so you’re never left in the dark about what’s happening on your property.
8. Look for Local Knowledge and Responsiveness
Choosing a local commercial roof contractor has several benefits:
✔ They understand local building codes and permit requirements.
✔ They know how to design roofs for local weather conditions.
✔ They’re easier to reach for warranty support or emergency repairs.
Out-of-town contractors may not provide the same level of ongoing service, especially if problems arise after the job is done. A local company has a stake in the community and reputation to uphold.
9. Ask About Material Options and Recommendations
A knowledgeable commercial roofer won’t just install what you ask for—they’ll help guide you to the best roofing system for your building’s needs and budget.
They should be able to explain:
✔ The benefits and drawbacks of different commercial roofing systems (TPO, EPDM, PVC, etc.)
✔ How your roof’s age, slope, and structure affect material selection
✔ Energy-efficiency options that may save you money long-term
You want a contractor who’s focused on what’s best for your building—not just what’s easiest or most profitable for them.
10. Trust Your Instincts
While credentials, reviews, and proposals matter, don’t ignore how you feel about the contractor. Are they respectful of your time? Do they answer your questions honestly? Are they pressuring you into a quick decision?
✔ A great contractor listens first and sells second.
✔ They provide options instead of one-size-fits-all solutions.
✔ They’re patient and open—even before the contract is signed.
The perfect commercial roofing partner should make you feel confident—not rushed or unsure.
Let’s Make This Easy – Get a Free Inspection Today
Choosing a contractor doesn’t have to be overwhelming. At Home Source Roofing, we combine local experience, top-tier materials, and transparent service to deliver commercial roofing solutions that last.
Whether you’re managing an office, warehouse, retail space, or industrial property, we’re here to help you make smart decisions from day one.
Let’s take the guesswork out of your roofing project—get a free inspection now and find out why businesses trust us for quality, value, and long-term protection.
