1. Normalize the scope before comparing price
The biggest mistake homeowners make is comparing two roofing totals before confirming that both contractors priced the same work. A lower bid may exclude tear-off, decking, permits, flashing, ventilation, solar handling or cleanup.
| Item | Quote A | Quote B |
|---|---|---|
| Roofing system / product | Write it down | Write it down |
| Tear-off & disposal | Included? | Included? |
| Decking allowance | Amount / unit cost? | Amount / unit cost? |
| Flashing / penetrations | Scope? | Scope? |
| Permits | Included? | Included? |
| Cleanup | Included? | Included? |
2. Compare the price only after scope is aligned
Once the proposals cover roughly the same work, the price difference becomes more meaningful. A quote that sits above a planning range is not automatically unreasonable, and a quote below it is not automatically a bargain. Product choice, site conditions, labor, code work, warranties and contractor overhead can legitimately change the total.
Compare Two Quotes in ProjectGauge
3. Compare warranties, payment terms and exclusions
Look for both manufacturer coverage and workmanship coverage. Also review deposit requirements, progress payments, final payment timing, change-order language and cancellation terms. The proposal should make it easy to understand what triggers additional cost.
4. Questions worth asking before you sign
- What happens if damaged decking is found?
- Who pulls permits and schedules inspections?
- Are all existing roof layers being removed?
- What flashing is replaced versus reused?
- What ventilation changes are included?
- Who handles solar panels or other roof-mounted equipment?
- What exactly is covered by the workmanship warranty?
- What is excluded from the contract price?