7 Questions to Ask Before You Hire a Commercial Roofing Contractor

Most building owners hire a roofing contractor once every ten or fifteen years. That's not enough repetition to build the instincts for who's reliable and who isn't, which is exactly why I tell people to ask these questions instead of going on gut feeling. I'd want someone to ask me every one of these.

1. Are you licensed, bonded, and insured for commercial work specifically?

Residential and commercial licensing and insurance requirements aren't always the same. Ask to see proof of commercial general liability coverage and workers' compensation, and confirm the coverage amounts actually fit a project of your building's size and value.

2. How many commercial projects have you completed similar to mine?

A contractor who's mostly done residential shingle roofs is a different fit than one with a track record on low-slope membrane systems for buildings your size. Ask for examples similar in scale, system type, and use case, whether that's a school, a warehouse, or a manufacturing facility.

3. What's your relationship with the manufacturer of the system you're proposing?

Manufacturer-certified installers usually carry stronger warranty backing, since the manufacturer has actually reviewed and approved the contractor's installation practices. Ask which certifications they hold and whether the warranty being offered is manufacturer-backed or just contractor-only.

4. Will I get more than one option, or just one quote?

A contractor who only offers a single path, usually full replacement, no matter what the inspection shows, isn't necessarily giving you the full picture. A thorough assessment should walk you through which repair, restoration, recovery, or replacement options actually fit your roof's condition, with the reasoning behind each one.

5. Who's actually doing the work, your crew or a subcontractor?

Some contractors sell the job and subcontract the installation. That's not automatically a problem, but you should know who's going to be on your roof and what their track record looks like, especially since warranty and accountability questions can get complicated if something goes wrong on a sub-contracted job.

6. How do you handle a problem discovered after the work starts?

Deck damage and other surprises sometimes show up once the old roof comes off. Ask how change orders get communicated and approved, and pay attention to whether this contractor treats that conversation as a partnership or as an opportunity to pad the invoice. 

7. Can I see a detailed, written scope, not just a price?

A real proposal should specify the manufacturer, the system, the insulation thickness, flashing details, and warranty terms in writing. A one-line quote with just a price makes it hard to compare contractors fairly, and it's usually a sign the proposal wasn't built around a real inspection of your specific roof.

Why these questions matter more than the price on the page

Two proposals with similar prices can represent very different levels of quality, warranty backing, and accountability. Asking these questions before anything gets signed is the cheapest insurance you'll buy on this whole project.

I welcome every one of these questions, and I provide written, detailed scopes built from a free on-site assessment. Call me at (641) 629-1451 or visit encorroofing.com to start that conversation.