Materials: Not All Shingles Are the Same Shingle
Three-tab and architectural shingles are different products with different lifespans. Within architectural lines, there are meaningful differences in weight, warranty and impact rating. Synthetic underlayment costs more than felt and performs better when a roof sits open through a weather change. Ice-and-water membrane runs several times the price of underlayment per square, and how much of it a contractor specifies is a real design decision, not a rounding error.
- Shingle line and weight — architectural vs. designer vs. impact-rated
- Underlayment — synthetic vs. felt, and total coverage
- Ice-and-water — eave-only vs. valleys, sidewalls and penetrations
- Flashing — new formed metal vs. reusing what is in place
- Ventilation components — ridge vent, intake baffles, soffit corrections
- Fasteners — nail count per shingle and whether that meets the wind warranty
Labor, Insurance and Who Is Actually on the Roof
Labor is the largest single variable in most bids. A crew that carries full liability and workers' compensation coverage costs more per hour than one that does not, and that difference gets passed into the estimate. It is worth paying for: when an uninsured worker is hurt on your roof, the exposure has a way of finding the homeowner.
Crew structure matters too. A regular crew that works together every week installs differently than a group assembled for one job. Neither shows up on the proposal, so you have to ask who will physically be on the roof and who supervises them day to day.
Ask for certificates, not assurances
Any properly insured contractor can have their carrier send a certificate of insurance directly to you. It costs them nothing and takes a phone call.
Assumptions: The Part Nobody Prices the Same Way
Two estimators standing in the same driveway can assume very different things. How many layers are coming off. Whether the deck is sound. Whether the chimney gets new counterflashing or a bead of sealant. Whether the existing soffit actually has intake airflow or is simply painted to look like it does. Whether the dumpster can reach the drive or material has to be carried.
On a rural or lake property, access alone can be thousands of dollars of difference. A steep roof over a walkout that must be staged rather than walked is a different job than the same square footage on a ranch in town.
Warranty Coverage Is Priced Into the Number
A material warranty comes from the manufacturer and covers defects in the product. A workmanship warranty comes from the contractor and covers the installation — which is where the large majority of roof problems actually originate. A longer workmanship warranty means the contractor has priced in the risk of coming back. A missing one means somebody else is carrying that risk, and it is you.
How to Narrow the Gap to an Honest Comparison
- Ask every contractor to quote the same shingle line and the same ice-and-water coverage
- Ask each for a written per-sheet decking rate
- Ask whether ventilation is included, and what specifically is being added
- Ask who the crew is and whether they are covered by the contractor's insurance
- Ask for the workmanship warranty length in writing, and who honors it
- Ask what would legitimately change the price after tear-off
Once those six answers are in hand, the remaining spread is a real price difference, and you can make a real decision. If you would rather have somebody walk through them with you, Roof Masters writes estimates that are built to be compared — call 715-453-4800 or request one online.
Common questions
- Is a $6,000 difference between two roofing quotes normal?
- On an average-size home in northern Wisconsin, yes, that spread is common. It usually traces back to shingle line, ice-and-water coverage, flashing, decking assumptions, ventilation and insurance — not to one contractor being unreasonable.
- How do I compare roofing quotes fairly?
- Ask every contractor to quote the same materials and the same coverage, get a written decking rate from each, and confirm insurance and workmanship warranty in writing. Once the scope matches, the price comparison finally means something.
- Does a higher roofing quote mean better work?
- Not automatically. Price alone proves nothing. A higher bid is only better if you can point to what the extra money buys — better materials, more coverage, new flashing, a real warranty, an insured crew.