Updated September 2026 by Chris Horton. Bid analysis, not an appraisal of your contractor. How we estimate costs
For homeowners holding a written roofing bid. In six steps it sets what you asked for against what the paper actually prices, names every line the bid leaves unstated, and tells you which dimensions have to be settled before two totals can be compared at all. It does not tell you whether the price is fair, and it cannot assess your roof.
Have the written bid in front of you. Everything below is read straight off the paperwork. Where a line is not on the paper, choose Not stated or leave it unticked: each gap becomes a question for the contractor rather than a guess by us.
It reads one bid at a time. It does not rate the contractor, it does not name a fair price, it does not cover insurance or storm-damage claims, and it cannot tell you whether your roof needs replacing. Only somebody who gets on the roof can do that.
Step 1 of 6 · The job you asked for
The job you asked for
Start with what you requested. The next steps read the bid.
Area and removal
Read these off the paper. Do not fill in what you assume is included.
The deck and the hidden layers
The visible roof and ventilation
Warranty, permits and terms
Tick only what the bid actually states in writing.
What this bid describes
Each line sets what you asked for against what the paper prices. Same means the bid prices what you asked for. Different means it prices something else. Unknown means the paper does not say. Not comparable means this dimension has to be settled before this total can be set against any other bid.
What the bid does not state
Questions to send back before you sign
Nothing is stored. This runs in your browser and resets when you close the page.
What this tool does, and what it does not
It can help you
- See whether the bid prices the job you actually asked for.
- Separate the covering from the removal, the deck, the flashings and the ventilation.
- Name every scope line the paperwork leaves unstated.
- Identify which dimensions must be settled before two totals mean anything side by side.
- Go back to the contractor with specific written questions.
It cannot tell you
- Whether the price is fair, high or a bargain.
- Whether your roof needs replacing. Nobody can establish that without getting on it.
- Whether the contractor will do the work well.
- What is under the old covering until it comes off.
- Anything about an insurance or storm-damage claim. That is a separate subject with separate rules.
Where to go next
- Roof Replacement Cost Calculator — the drivers behind the number, before a bid exists.
- Roof replacement quote checklist — this framework written out in full.
- What really drives a roof replacement price.
- Ice and water shield roof quote decoder — where the membrane goes, how far, and when two bids stop being comparable.
- Roofing warranties explained — what the warranty lines actually mean.
- All roofing guides and how we estimate costs.
About the author
Chris Horton writes UpgradeWorth’s homeowner decision guides. He covers how replacement projects are scoped, quoted and warrantied, with a bias toward what a homeowner can verify in writing rather than what a salesperson says at the kitchen table. UpgradeWorth does not sell leads, rank contractors or accept placement fees.