THE SHORT ANSWER
Estimate garage door replacement from the measured opening, selected door assembly, track condition and disposal. Treat the opener and damaged framing as separate scope decisions.
The worked project in this guide is one standard two-car door. It uses an original fictional job to explain the estimating decisions, with a matching garage door replacement PDF example. Replace the example inputs with your measurements, supplier quotes and labor costs.
1. Measure and specify the opening
Record width, height, headroom and the selected door configuration. A nominal two-car label is not enough to order the correct assembly.

2. Inspect supporting conditions
The example assumes suitable framing and room for the selected track. Note any damaged jamb, slab or ceiling obstruction for separate review.
3. Keep the opener decision visible
State whether the existing opener is retained, adjusted or replaced. This example prices a door assembly without a new motor opener.
4. Include safe handoff work
List balance, travel and operation checks by a qualified installer, plus old-door disposal. Assign any required local approval to the actual project.
A worked garage door replacement calculation
One door-and-track allowance × $1,450 = $1,450, and one installation line × $850 = $850. Together they are $2,300 before removal, seals and disposal.
The complete example contains 6 lines totaling $3,070.00 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 opening and clearance.
- Select door and track assembly.
- Inspect jamb and opener assumptions.
- Assign disposal and approval work.
Example scope boundary: No new opener, framing repair, slab correction, electrical work or specialty opening modification.
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
Does a garage door price include an opener?
Only if listed. The door and motor opener are separate products and installation scopes.
Can the old tracks stay?
That depends on the selected assembly and site inspection. This example allows a matching door-and-track set.
TAKE THE NEXT JOB FROM SCOPE TO PDF
Make your own garage door replacement 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.