What Should a Roofing Estimate Include?

A written estimate for flat roof leak repair should include: the specific diagnosed cause of the leak (not just “roof leak”), the exact repair method and materials to be used, the area or square footage being repaired, a firm price — not a range that can move once work starts — and what’s included versus what would be an additional cost if discovered mid-repair (like rotted decking under the membrane).

It should also state who’s doing the work (the company’s licensed crew, not a subcontracted “friend of a friend”), an estimated timeline, and warranty terms in writing, not just verbal assurance.

If an estimate is just a single number with no breakdown of what’s being fixed or how, that’s worth asking about before you agree to anything. See more questions to ask →

A Vague Estimate Is a Warning Sign, Not Just an Inconvenience

Beyond the basics, a genuinely thorough estimate should also note the material brand or type being used (not just “membrane”), the expected timeline for the work, and any conditions that might change the scope (like discovering water-damaged decking once the membrane is opened up). If an estimate leaves all of that vague, it’s harder to hold the actual work accountable to what you agreed to.

We treat the estimate as a real commitment, not just a sales document — what’s written there is what we do, and any deviation gets discussed with you before it happens, not discovered on the final invoice.