Window & Door Installation Estimate Software (2026)

Window and door work is a big-ticket category — a full house window replacement easily runs $15,000–$40,000. Window and door estimate software gives homeowners the confidence to move forward with a line-item breakdown they can actually understand.

What window and door contractors need in estimates

• Unit-by-unit schedule — location, size, type, material, and energy rating (U-factor, SHGC)
• Install type — insert/retrofit vs. full-frame removal adds 1.5–2× labor
• Flashing and wrap — required for exterior moisture protection
• Interior trim — casing, stools, aprons; often omitted then disputed
• Haul-off — old window/door disposal

Window and door pricing quick reference (2026, installed)

• Double-hung vinyl window (insert) — $400–$900/window
• Casement window (insert) — $550–$1,100/window
• Sliding glass door (6') — $1,500–$3,500 installed
• Exterior entry door (fiberglass, prehung) — $1,200–$2,800 installed
• Interior door (prehung, hollow core) — $200–$450 installed
• Interior door (solid core) — $350–$700 installed
• French doors (exterior) — $2,500–$6,000 installed

How to estimate a window or door project

1. List every opening: location, rough opening size, current type
2. Specify product by manufacturer, series, glass package
3. Estimate install time — retrofit: 1.5–2 hrs/window; full-frame: 3–5 hrs/window
4. Add trim labor: 30–60 min per window for interior casing
5. Add flashing, foam, hardware, and haul-off separately

Window and door estimating pitfalls

• Not noting structural lintels — some openings need header work ($300–$800 extra)
• Forgetting to specify Low-E glass — clients assume it's included; quote it explicitly
• Quoting retrofit when walls need full-frame removal — different price, different scope

The ConstruMate window & door calculator lets you build a unit-by-unit schedule with install type, trim, and flashing — then send a proposal your client can sign from their phone.

Start your free window estimate →