Windows & Doors Calculator

Windows & Doors Profit Calculator

Enter your job details below. Results update instantly. All fields are pre-filled with 2026 industry averages — adjust to match your actual numbers.

2026 Benchmarks US Market

Job Complexity

Job Details
Revenue and scope of work
Total windows + doors being installed
Materials
All material costs including waste factor
Your cost — all units combined
Labor
Crew costs including burden
Overhead & Other Costs
Disposal, equipment, subcontractors
Old windows, doors, packaging

How the Windows & Doors Profit Calculator Works

Replacement windows, entry doors, sliding glass doors — this calculator gives you a real-time margin breakdown on any window and door install job. Enter your costs and know your margin before you send the bid.

  1. Enter your contract price. Include the number of units being installed.
  2. Add material costs. Unit cost for all windows and doors, plus flashing, foam, and trim.
  3. Enter labor details. Your installer’s burdened hourly rate and days on the job.
  4. Add overhead and other costs. Disposal, equipment, and overhead allocation.
  5. Read your margin instantly. Gross and net margin update instantly compared to 2026 benchmarks.

Windows and doors is a high-margin install trade when you supply the units — the material markup is where significant profit is built, especially on premium and custom units.

Frequently Asked Questions

What profit margin should window and door installers charge?
Window and door installation contractors typically target 35–55% gross margin. Replacement retrofits run 35–42%; bay/bow windows and custom doors command 40–48%; luxury and full exterior packages regularly achieve 45–55% when the installer supplies the units at a healthy markup.
How do window and door contractors mark up materials?
A 25–40% markup on window and door units is standard for contractors who supply and install. If you’re purchasing units at dealer pricing and selling at retail or near-retail, the markup is already built into the unit cost spread. Never let the customer supply units if you can avoid it — you lose the material margin and take on warranty liability.
How long does a typical window replacement job take?
An experienced 2-person crew can replace 6–10 standard double-hung windows per day on a retrofit job with no structural issues. Bay and bow windows, custom sizes, and new construction openings take significantly longer — budget 2–4 hours per specialty unit versus 45–75 minutes for standard replacements.
What permits are needed for window and door installation?
Most jurisdictions require a permit for any structural opening modification, but replacement-in-kind retrofits (same size, same location) often don’t require a permit. Always check local requirements — permit costs range $50–$300+ and should be passed through as a line item, not absorbed into your margin.
How does unit cost affect job margin for window contractors?
Unit cost is by far the largest variable in window and door job profitability. A 10% reduction in unit cost — through better dealer pricing, volume purchasing, or manufacturer relationships — can shift gross margin by 5–8 points on a typical job. Contractors who invest in manufacturer relationships consistently outperform on margin.