6 Reasons Some Commercial Roofing Quotes Are Higher Than Others

If you've received multiple quotes for a commercial roofing project, you might wonder why some are significantly higher than others. Understanding what goes into a roofing quote helps you make an informed decision — rather than simply choosing the lowest bid.

1. Travel Costs

If your contractor travels a considerable distance, fuel, hotel stays, and crew travel expenses typically add 5–10% to the total project price. A high-quality contractor from out of town may still be the better option if they install a better system and have a stronger track record.

2. Experienced Workers

A well-trained, experienced roofing crew costs more than lower-paid, less-experienced workers. Lower quotes often come from companies relying on temporary labor or contractors with little longevity. Compromising quality for cost is rarely wise.

3. Top-of-the-Line Materials

Manufacturers don't sell their products to just anyone — they require approved contractors with extensive training. High-quality silicone coatings and spray foam cost more than single-ply alternatives, but they deliver superior performance and longer lifespans.

4. The Cost of Doing Things Right

Ethical contractors assess current roof conditions thoroughly — checking drainage, insulation moisture, ventilation, and slope — and recommend the right solution rather than the highest-dollar one. Removing wet insulation, recommending restoration over tear-off, and keeping your budget in mind all reflect doing the job right.

5. The Learning Curve for Certain Systems

Spray polyurethane foam requires significant training and skill to apply correctly. That expertise costs more — but is essential to get a system that actually performs.

6. Material vs. Labor Cost Structure

For spray foam, roughly 60% of project cost is materials, 40% labor. For most traditional systems it's the reverse. Materials work on your roof for 10+ years; labor disappears when installation ends. A higher materials ratio is actually a better investment.