How to Compare Roof Replacement Quotes by Scope

Two quotes cannot be compared reliably if one includes removal and repairs while the other only covers installing the new roof covering. Record measured surface area, roofing system, exact product and which accessories each proposal includes. Keep optional work separate from the base scope.

Ask for the basis of any quantity difference. One quote may show measured squares and another may show waste-adjusted order squares. For 1,800 square feet with an illustrative 10% allowance, those figures are 18 and 19.8 squares. The difference alone does not demonstrate an error.

The replacement calculator’s tear-off input is dollars per roofing square per layer. In an illustrative 1,800-square-foot scenario, 18 squares × 1 layer × $75 equals $1,350. Two layers at that same rate would be $2,700. These are examples to check units, not current market prices.

Disposal is a separate project allowance in the calculator. If the contractor’s removal quote includes disposal, enter zero on the extra disposal line. Multiplying an already-complete disposal quote by the number of layers can count the same cost twice.

Write down the installed price per replacement deck sheet and the assumed quantity. Five sheets at an illustrative $100 installed each create a $500 allowance. That calculation does not establish that five sheets are damaged; it only makes the budgeting assumption reproducible.

Ask how additional damage is documented and approved. Keep known repair work, provisional allowances and optional upgrades distinct. A sheet allowance is not a substitute for separately scoped framing repairs or inspection of hidden conditions.

Suppose Quote A is $12,000 and includes disposal, while Quote B is $11,700 but excludes it. Adding a documented $500 disposal allowance to B gives a comparable planning amount of $12,200 before any other differences. B’s lower headline price no longer describes the lower normalized amount. This is a fictional comparison, not pricing research.

Do not automatically add every worksheet line to a bundled quote. Mark each line as included, separate, unknown or not applicable. For material pricing in the app, a fixed supplier quote replaces area-based material pricing; you should not add the calculated material cost to that fixed quote.

A contingency is money you decide to hold aside. It is not necessarily a charge on the contractor’s quote and is not a guaranteed maximum for the job. The app applies your reserve percentage once to the complete entered subtotal, including your tax and permit allowances.

Finish the comparison by checking the written scope, payment milestones, workmanship terms and the process for changes. Resolve unclear terms with the contractor before treating a calculator total as a buying decision. Use the blank worksheet to organize questions without sharing personal customer information in public links.