How to Quote a Window or Door Installation Job (With Checklist)
How window and door installers can quote accurately: measuring, product options, full-frame vs insert, trim, disposal and lead times.
Window and door quotes go wrong when measurements are off, the product is not specified or hidden rot appears. Use a checklist so every opening is captured.
On-site checklist
- Opening width and height, measured in more than one place
- Operation type (casement, slider, fixed, awning) and egress requirements
- Frame material, colour and glass package
- Existing frame, trim and siding or brick condition
- Floor level and access for ladders or scaffolds
- Photos of each opening
Insert or full-frame?
Insert replacement keeps the existing frame and costs less. Full-frame removes everything down to the studs and lets you fix flashing and rot. Quote both when the condition is uncertain.
Line items
- Product per opening
- Installation labour
- Insulation, flashing, sealant
- Interior trim and exterior capping or brick-mould
- Removal and disposal
- Permits where required
Lead times and deposits
Custom products are non-returnable. Take a deposit on order, state the lead time and what happens if the manufacturer delays. See getting paid on time.
Hidden conditions
Add a per-opening allowance for rot repair and handle extras through change orders.
Market context
Clients compare to typical costs: window and door cost guide. Mention energy programs carefully: rebates.
Quote on the spot
Installers can use quoting software for window and door installers to list each opening with size and price and send it before leaving the site.