THE SHORT ANSWER
Estimate siding repair from the damaged area, matching product, access and condition of backing. Show purchased material apart from repaired wall area and state how concealed damage will be handled.
The worked project in this guide is 60 sq. ft. localized lap-siding repair. It uses an original fictional job to explain the estimating decisions, with a matching exterior siding repair PDF example. Replace the example inputs with your measurements, supplier quotes and labor costs.
1. Mark the repair boundary
Photograph and measure the courses to be removed, including start and stop points. A localized repair should not imply full-wall replacement.
2. Check product compatibility
Match profile, thickness and finish as closely as the actual supplier options allow. The 72-square-foot allowance is a fictional purchase quantity for 60 square feet installed.
3. Inspect backing when opened
The base price assumes sound supporting material. If removal reveals damage, document it and obtain a revised scope before further repair.
4. Define finish expectations
Explain whether priming, painting and color blending are included. A new siding piece may not visually match weathered adjacent material without separate finishing work.
A worked exterior siding repair calculation
The purchase allowance is 72 sq. ft. × $11 = $792. Fitting and installation uses 60 sq. ft. × $15 = $900.
The complete example contains 6 lines totaling $2,457.00 before any tax or markup. These are deliberately stated example prices, not a survey, regional price recommendation or offer to perform the job.
To set your own selling price, review direct costs and decide how you will cover overhead and profit. For example, adding 20% to a $1,000 cost gives $1,200; it does not produce a 20% gross margin. Use the approach you intend consistently, and avoid adding a second markup to rates that already include it.
Before you send the estimate
- Measure and photograph repair courses.
- Identify matching siding product.
- Confirm access and backing assumption.
- State finish and concealed-repair process.
Example scope boundary: No structural repair, concealed moisture remediation, full-wall replacement, finish painting or multi-story access.
Review the client name, location, validity date and all calculations. Tax is not included in this example; determine the correct treatment for the actual work rather than copying a sample percentage.
Common questions
Why is material area larger than repaired area?
The example allows for cuts and stock sizes. Verify the actual purchase quantity against the selected product.
Will new siding match existing color?
Do not assume a perfect match. Describe the product and any finishing work included before the customer accepts the scope.
TAKE THE NEXT JOB FROM SCOPE TO PDF
Make your own exterior siding repair estimate.
Use Estimates on iPhone or Android to draft a scope with AI assistance or enter your own items. Review quantities and rates, add your business logo, and export a PDF. Example files are free to view; app features may require an in-app purchase.
