How to Choose a Commercial Roofing Contractor: Questions for Facility and Property Teams

Our general guide, How to Compare Roofing Contractors, covers the basics for any property. Commercial roofs add questions a homeowner rarely faces: low-slope systems, tenants and operations below the work, capital planning, and long-term maintenance. These questions help facility managers, building owners, and property teams compare commercial bids on the same terms.

Questions about the assessment

• Will you assess the roof on site before proposing scope, rather than pricing from aerial images or a phone call?
• What will the assessment cover: membrane or roof surface, seams, flashing, penetrations, rooftop curbs, drains, and areas of ponding?
• Will the findings come back as a written report with photos and priority notes? See what a useful commercial roof inspection report includes.
• Will you separate urgent repair items from items that can be planned and budgeted for later?

Questions about the scope document

• Which roof areas and buildings does the scope cover, and which does it leave out?
• Which roof system and materials are proposed, and why do they fit this building's slope, drainage, and use? Our TPO, EPDM, and modified bitumen comparison explains the common options.
• How are flashing, penetrations, drains, and edge details handled in the scope?
• What assumptions does the scope make, and how will conditions found once work begins be documented and discussed before any change?
• Were repair, coating, retrofit, and replacement all considered, and what made you recommend this one?

Questions about site safety and access

• How will crews reach the roof, and how will roof access be controlled while work is underway?
• Where will materials, equipment, and dumpsters be staged, and how will entrances, parking, and loading areas stay usable?
• How will work be scheduled around business hours, tenants, deliveries, and noise-sensitive areas?
• How will the building interior be protected if the roof is opened, and who should we call on site each day?

Questions about documentation and maintenance after the project

• Will we receive progress updates during the work and documentation of the completed roof at closeout?
• Do you offer a commercial roof maintenance program, and what does each scheduled review check?
• How will maintenance findings be recorded so they support budgeting and capital planning over time?

Facts you can confirm yourself

Ask each contractor what insurance coverage it carries and confirm the details with the documents it provides. We are Insured (general liability) and Veteran-Owned. Compare the answers to every question above side by side, using the same list for each contractor.

We start commercial roofing work with an inspection and a documented roof condition report, then recommends repair, maintenance, retrofit, or replacement based on what the roof shows.