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Quick, low-risk steps

  1. Collect at least two written, itemized roof estimates from different contractors.
  2. Open this checklist on your phone or computer—nothing you type is sent to us.
  3. Enter each contractor's name and the date of their estimate.
  4. Go through each line item and check whether it is included, excluded, or unclear.
  5. Note any differences in materials, warranties, or allowances.
  6. Ask each contractor to explain missing or vague items before you sign anything.

Why a Line-by-Line Comparison Matters

Two roof estimates can look similar in total price but hide big differences in what is actually included. One may skip decking replacement or use a thinner underlayment, while another bundles permit fees and better fasteners. A checklist turns vague promises into specific items you can verify.

Comparing scopes also protects you from surprise charges after the job starts. When a contractor knows you are comparing detailed line items, they are more likely to give you a complete quote upfront. This tool is for your own use—no data is saved or shared.

  • Reveals hidden exclusions like dump fees or flashing replacement
  • Helps you ask the same questions to every contractor
  • Makes it easier to spot unusually low or high line items
  • Gives you a written record of what was promised

How to Use This Checklist

Open the checklist on any device. For each contractor, enter their name and the estimate date at the top. Then work down the list of common scope items—measured roof area, tear-off layers, decking allowance, underlayment, flashing, ventilation, materials, fastening, permits, disposal, and warranties.

For every item, mark whether it is clearly included, clearly excluded, or unclear. Use the notes field to jot down specifics like shingle brand, underlayment type, or warranty length. When you finish, you will see a side-by-side summary that highlights gaps.

  • Works offline in your browser—no account or login
  • Add as many contractors as you need
  • Check included, excluded, or unclear for each line
  • Notes field captures brand names, thicknesses, and warranty details
  • Summary view helps you spot missing items at a glance

What the Checklist Covers

The checklist is built around the items that most affect roof performance and final cost: the measured area (including waste factor), number of tear-off layers, decking replacement allowance, underlayment type, flashing and penetration details, ventilation upgrades, shingle or metal specifications, fastening method, permit and inspection handling, disposal and cleanup, and both workmanship and manufacturer warranties.

It does not include every possible line—local code requirements, steep-slope charges, or specialty flashings may apply. Use the blank rows to add items unique to your project. If a contractor's scope is vague, ask for a revised written estimate before you compare.

  • Measured roof area and waste percentage
  • Tear-off layers and decking allowance
  • Underlayment, flashing, and ventilation
  • Material specs and fastening method
  • Permits, inspections, disposal, and warranties

After You Compare

Once you have filled in the checklist for at least two contractors, review the summary. Look for items marked 'unclear' or 'excluded' that you expected to be included. These are your talking points. Contact each contractor and ask for clarification in writing—an email or updated estimate is fine.

Do not choose a contractor based on price alone. A slightly higher quote that includes full decking replacement, better underlayment, and a longer workmanship warranty may save you money later. Keep your completed checklist as part of your project records.

  • Focus on unclear or excluded items first
  • Ask for written clarification, not verbal promises
  • Compare warranty lengths and what they actually cover
  • Keep the checklist with your contract and receipts
  • Never pay in full before the work is complete and inspected

Private worksheet

Roof Quote Comparison Checklist: private worksheet

Check items as you confirm them. Your selections and notes stay in this browser and are not submitted to us. This worksheet does not diagnose the problem or replace an on-site professional.

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Items to confirm

Common questions

What homeowners ask next

Does this checklist work on my phone?

Yes. The checklist runs in your browser and is designed to work on phones, tablets, and computers. Nothing you type is sent over the internet.

Can I save my comparison and come back later?

Your entries are saved in your browser's local storage. They will still be there if you close the tab, but they may be lost if you clear your browser data or use a different device.

What if a contractor won't give me an itemized scope?

A contractor who will not provide a written, itemized estimate may not be the right choice for your project. You have the right to understand exactly what you are paying for before work begins.

Evidence

Sources used for this guide

Research checked July 31, 2026

Optional next step

Need an on-site professional?

Use the guide and worksheet first so you can describe the situation and compare the full scope. A referral is optional; you can also contact a licensed local provider directly.

Referral matching is not enabled yet.

We have not enabled a provider route for this site. Use the checklist to contact and verify local providers yourself; urgent hazards should go to the appropriate emergency or public service.