Pre-sale roof estimate reports: measurement, inspection and what to put in a listing
Updated · Rotomal
A pre-sale roof estimate report measures the roof from aerial imagery: area, squares, pitch and facets, plus a replacement-cost range if a roofer prices it. It says nothing about the roof's condition or remaining life; that takes a roof inspection, a separate on-site service that published cost guides put at about $225 on average (Inch Calculator, updated 2023) or $400–484 for a basic inspection (Homewyse, January 2026). In a listing, state a measurement as a measurement with its source and date, and leave condition claims to an inspection report.
Measurement report vs roof inspection
| Measurement report | Roof inspection | |
|---|---|---|
| What it tells you | Area, squares, pitch, facets, sometimes a cost range | Condition: damage, leaks, flashing, ventilation, remaining life |
| How it is done | Aerial or satellite imagery, no visit | On site; NRCIA describes five zones: interior, attic, perimeter, exterior environment and rooftop |
| What you get | A PDF with numbers and a roof diagram | A written report with photographs |
| Price | Free tracing tools up to about $87 a report (checked 29 October 2026) | About $225 average, $75–850 range (Inch Calculator, 2023); $400–484 basic (Homewyse, January 2026) |
| Turnaround | Seconds to 24 hours, by vendor | Needs a site visit |
What agents can and cannot claim
The National Association of REALTORS® Code of Ethics asks members to avoid exaggeration, misrepresentation or concealment of pertinent facts (Article 2) and to present a true picture in their advertising (Article 12). Standard of Practice 2-1 limits the duty to adverse factors reasonably apparent to someone with the expertise their licensing authority requires, and says Article 2 does not oblige expertise in other professional or technical disciplines. In practice, a measurement can be stated as a measurement; condition needs an inspection behind it.
- Fine with a measurement report: "Roof area approx. 2,100 sq ft (21 squares), 6/12 pitch, per aerial measurement report dated 29 October 2026."
- Fine with a roofer's written estimate: "Roof replacement estimate from [roofer], dated ...", attached in full.
- Not from a measurement alone: "new roof", "roof in excellent condition", "15 years of life left" or "certified roof".
- Never present a measurement or an estimate as an inspection or a certification.
- This is general information, not legal advice: state disclosure rules, your MLS's rules and your brokerage's policy apply, so confirm wording with your broker.
Free and low-cost ways to get the numbers
- MapScaping's free roof area calculator: no account; trace the roof on satellite imagery, enter the pitch, export a PDF.
- RoofStruct's free plan: unlimited do-it-yourself tracing; PDFs carry RoofStruct branding.
- Roof Manager: about $7 a report, billed as $10 CAD, with 2 free reports and delivery in 1–3 hours.
- ExactSquares: $40 a month for unlimited measurements, after a 7-day trial.
Using roof numbers in a listing or seller packet
- Give the source, the report date and the imagery date next to the figure.
- Round and say "approx."; aerial measurements are estimates.
- Keep the full PDF in the listing file so a buyer's agent can see what was measured.
- Quote a replacement cost only if a roofer issued it in writing, with their name and date.
- If the roof has been changed since the imagery date, say so or remeasure.
When to order an inspection instead
Order an inspection when the roof's condition is the question: an older roof, visible damage or past leaks, a buyer asking about remaining life, or an insurer or lender asking for one. A measurement report cannot answer any of those, however accurate its area is.
Roof Tally for listing files
Roof Tally measures from the address alone and returns a PDF plus CSV or JSON for the listing file: area as a range, squares, dominant pitch, facets, imagery date and a quality grade. Bulk mode handles a whole set of listings in one upload. Every report is labeled as a measurement, never an inspection. Reports are $6 each, or $39 a month for 100.
Questions
What is a pre-sale roof estimate report?
A report made before a house is listed or sold that measures the roof and sometimes prices a replacement. It is based on imagery, not a visit, and does not assess condition.
Is a roof measurement report the same as a roof inspection?
No. A measurement gives size and pitch; an inspection is an on-site check of condition with a written report and photographs.
How much does a roof inspection cost?
Published guides vary: Inch Calculator gives a $225 national average and a $75–850 range (updated September 2023), and Homewyse puts a basic inspection of a 2,000 sq ft roof at $400–484 (January 2026). Get local quotes.
Can I put the roof square footage in a listing?
Yes, as an approximate figure with its source and date, if your MLS fields or remarks allow it. Check your MLS's rules and your brokerage's policy.
Is this legal advice?
No. Disclosure duties differ by state and brokerage; confirm wording with your broker or a real estate attorney.
Sources
- National Association of REALTORS®: Code of Ethics and Standards of Practice (Articles 2 and 12, Standard 2-1). Source: nar.realtor
- NRCIA: roof inspection, five-zone standard and written report. Source: nrcia.org
- Inch Calculator: roof inspection cost guide (updated 18 September 2023). Source: inchcalculator.com
- Homewyse: cost to inspect a roof (January 2026). Source: homewyse.com
- MapScaping: free interactive roof area calculator. Source: mapscaping.com
- RoofStruct: pricing. Source: roofstruct.com
- Roof Manager: US pricing. Source: roofmanager.ca
- ExactSquares: pricing. Source: exactsquares.com
- EagleView: report pricing. Source: eagleview.com