A roof replacement in Grand Rapids is not a catalog price. Crews bid by the square (100 square feet of roof surface), then adjust for pitch, tear-off layers, ice-and-water, ventilation, flashing, and whether the decking underneath is sound. Two similar houses can land far apart because one bid is shingles and labor and the other is a full system with underlayment, permit, disposal, and a per-sheet plywood rate.
Why do roofing estimates vary so dramatically?
Because the scope of work is rarely the same piece of paper. One company prices a light tear-off and a mid-grade composition shingle. Another prices a full tear-off, ice barrier, architectural shingles, new flashing at every penetration, and a manufacturer system built to qualify for long-term coverage. Labor hours swing with roof pitch, dormers, access, and whether the dumpster can sit in the drive. Material grade is not a slogan. It is a line item. A GAF system that can carry Golden Pledge on a qualifying job is a different product than a builder-grade shingle with a thin workmanship promise.
If a number looks too low, read what is missing. Plywood as needed with no per-sheet price is how a bargain becomes a change order. Ask every bidder to itemize tear-off of existing layers, underlayment, ice-and-water, flashing, vents, disposal, and decking by the sheet. Then you are comparing the same roof, not a cheap headline against a complete job.
What extra costs show up once the old shingles come off?
Decking. Dry rot and plywood rot hide under composition shingles, especially at eaves where West Michigan ice dams sit all winter. After tear-off, a contractor should stop, photograph the roof deck, and get approval before replacing sheathing or chasing rotten joists. Fascia boards and drip edge sometimes follow. Those are real conditions, not invented extras, but they should never appear as a surprise invoice with no photos and no written change order.
A fair replacement bid prices the visible roof as a complete system and lists a per-sheet decking rate before anyone pulls a nail.
Permits belong on the estimate too. Most Grand Rapids-area replacements need one; the city or township sets the fee. Skipping the permit is not a discount. It is a sign the company does not intend to stand behind the work.
How long does a typical roof replacement take?
A straightforward residential tear-off and shingle job on a modest house often wraps in a day when the weather holds and the deck is sound. Steeper pitches, two layers, or structural repairs stretch that. Scheduling is the other clock: after a real inspection, approved roofing projects can be on the calendar in as little as 5–7 days, which matters more than the hours on the roof when hail just came through Kent County.
Get two or three written quotes with matching scopes, ask which warranty the materials actually carry, and look at photo documentation before you decide repair versus replacement. Performance Roofing & Siding walks that sequence from their Grand Rapids office: online or onsite estimate, a 28-point inspection with photos, then a replacement bid that names the system — GAF Master Elite installation, Golden Pledge on qualifying roofs, tear-off protection, and thorough cleanup — instead of a one-line total.