Free Invoice Template for Window Installers
Per-window invoicing with U-factor, capping, and disposal lines.
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What is a window installer invoice?
An window installer invoice is the bill you send a customer AFTER the work is done. It lists every part, labor charge, and tax, and tells the customer what they owe and how to pay.
What every window installer invoice should include
- Window count + sizes
- U-factor + SHGC
- Frame type (vinyl/wood/composite)
- Capping color
- Manufacturer warranty
Window installer pricing reference (US, 2026)
Common window installer line items. National averages — adjust for your local market.
Window installer invoice tips that get you paid faster
- Photo every existing window before pull
- Include capping in the quote — never extra
- Energy-rebate paperwork = upsell + value
- Caulk-in vs new-construction — disclose on the invoice
Window installer invoice FAQ
Do I charge sales tax on window work?
Most US states tax parts/materials but exempt labor. Use Glo Invoice's per-line tax toggle so each window line item is taxed correctly. Check your state — a few (HI, NM, SD, WV) tax services too.
Vinyl vs fiberglass?
Fiberglass lasts longer + paintable; vinyl is the value play. Quote both.
Rebates?
Yes — ENERGY STAR + utility rebates. Often $50–$200/window.
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