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Window Replacement Cost Calculator
Calculate total window replacement costs by style, frame, and glass package. See your annual energy savings and payback period.
Educational calculators — always consult a licensed professional before making financial decisions.
Double-hung is the most common. Bay and bow windows cost significantly more.
Upper and lower sashes both open. Most common US window style. Easiest to clean.
Vinyl is the most popular — low cost, great insulation, no painting required.
Most popular. Low cost, excellent insulation, no painting required. Slight expansion in heat.
Double-pane with Low-E + argon gas is the sweet spot for most climates.
Argon gas between panes improves insulation further. Best value glass upgrade. U-value ~0.25–0.30.
Replacing 3+ windows earns a labor discount of 8–18%.
This determines how much you'll save on energy bills after replacement.
Maximum energy savings potential from replacement. New windows can cut heating/cooling loss by 50–70%.
Total Installed Cost
$2,956 – $5,735
10 windows including all selected options
18% labor discount applied for 10 windows
Cost Breakdown (per window)
Energy & Financial Analysis
Based on
Estimates reflect national averages for educational purposes only. The federal 25C window tax credit ended after Dec 31, 2025; check DSIRE (dsireusa.org) for state and utility rebates. Always get 2–3 contractor quotes.
Your Saved Scenarios
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What you'll need
- ·Window style (double-hung, casement, bay, bow, egress, skylight, etc.)
- ·Frame material (vinyl, aluminum, wood, wood-clad, or fiberglass)
- ·Glass package (double-pane, Low-E coating, Low-E + argon, or triple-pane)
- ·Number of windows and current window type (to calculate energy savings)
What you'll get
- ✓Total installed cost range — Windows + labor + add-ons
- ✓Per-window cost — Installed, by style and material
- ✓Energy savings estimate — Annual savings vs. current windows
- ✓State & utility rebates — Check DSIRE for ENERGY STAR programs
Window cost overview
How it works
Count your windows
Enter the number of windows by type: single-hung, double-hung, casement, or picture.
Select frame material
Choose vinyl, fiberglass, wood-clad, or aluminum — each has different cost and efficiency.
See savings and payback
Get an energy savings estimate and payback period. The federal 25C window credit ended after Dec 31, 2025 — check DSIRE for state/utility rebates.
Window Replacement Cost by Type
| Window Type | Material | Cost Installed |
|---|---|---|
| Single-hung | Vinyl | $300–$600 |
| Double-hung | Vinyl | $400–$800 |
| Casement | Vinyl | $500–$1,000 |
| Double-hung | Fiberglass | $600–$1,200 |
| Bay / Bow | Wood-clad | $1,500–$4,000 |
The federal 25C tax credit for ENERGY STAR windows ended after Dec 31, 2025. State and utility rebates may still apply — check DSIRE (dsireusa.org).
Frame materials, compared
- Vinyl: most popular — low cost, good insulation, no painting, 20–40 year life. Best value for most homes.
- Fiberglass: strongest and most energy-efficient, barely expands or contracts; costs more.
- Wood / wood-clad: beautiful and classic, best insulation, but needs maintenance and costs the most.
- Aluminum: durable and slim, but conducts heat (poor insulation) — better for mild climates.
Popular brands: Andersen and Marvin (premium), Pella (mid-to-premium), Milgard and Simonton (value) — higher tiers pair better frames with warmer glass and stronger warranties.
Glass packages & energy savings
Double-pane with a Low-E coating and argon gas is the value sweet spot for most climates. Triple-pane adds R-1 to R-2 and costs 15–30% more — worth it in extreme cold or for a passive-house build. Look for the ENERGY STAR label for your climate zone.
Replacing single-pane windows with ENERGY STAR double-pane can cut heating and cooling bills 12–24% — roughly $100–$400 a year for the average home.
Repair or replace, and insert vs. full-frame
Repair when the frame is sound and only the glass seal failed (foggy panes) or hardware broke — a glass-only swap is far cheaper. Replace when frames are rotted or warped, windows won't open/close, or you feel drafts.
- Insert (pocket) replacement: new window into the existing frame — cheaper and faster, if the frame is in good shape.
- Full-frame replacement: everything down to the studs — needed for rot or to change size, costs more.
Questions to ask, red flags, warranty & timing
Ask & watch for:
- Insert or full-frame — and why for my house?
- What's the U-factor and SHGC, and is it ENERGY STAR for my zone?
- Itemized per-window pricing with the multi-window discount shown.
- Get three quotes — window pricing varies widely. Beware high-pressure "today only" deals.
Warranty: quality windows carry limited lifetime frame/glass warranties, plus a separate installer labor warranty — register to keep it valid. Timing & rebates: book in the off-season for better rates; the federal 25C window credit ended after Dec 31, 2025, so check state and utility rebates via DSIRE.
Methodology & sources
The cost figures on this page are generated from a single, sourced cost-data file (Per window installed (unit + labor), whole-house project. National average estimate for 2026 (~$750 average per window).). Replacing all 10–15 windows in a home runs $5,000–$15,000 total; bulk pricing lowers the per-unit cost. Specialty windows (bay, bow, egress) cost more. The unit is 65–75% of the cost, labor the rest. Last verified July 2026.
- HomeGuide — Window Replacement Cost (2026) — retrieved 2026-07-13
- Angi — Window Replacement Cost (2026) — retrieved 2026-07-13
- This Old House — Window Replacement Cost (2026) — retrieved 2026-07-13
Frequently asked questions
How much does window replacement cost?+
Window replacement costs $300–$900 per window installed for standard double-hung windows. Specialty windows (bay, bow, egress) run $800–$2,500. A whole-house replacement for a typical home with 10–15 windows costs $5,000–$15,000 total. Vinyl frames are most affordable; fiberglass and wood frames cost more.
How often should windows be replaced?+
Windows typically last 15–30 years depending on material. Vinyl windows: 20–40 years. Wood windows: 30+ years with maintenance. Aluminum: 20–25 years. Replace when you see condensation between panes, drafts, difficulty opening/closing, or visible rot/warping.
Is double-pane or triple-pane glass worth it?+
Double-pane with Low-E coating and argon gas is the sweet spot for most climates. Triple-pane adds R-1 to R-2 more and costs 15–30% more — worth it in extreme cold climates (Minnesota, Montana) or passive house builds. For most homeowners, double-pane Low-E + argon is the best value.
Is there a tax credit for window replacement in 2026?+
No. The federal Energy Efficient Home Improvement Credit (25C), which gave 30% up to $600 on qualifying ENERGY STAR windows and skylights, ended for windows placed in service after December 31, 2025 (One Big Beautiful Bill Act, 2025). Windows installed by December 31, 2025 can still be claimed on your 2025 return (IRS Form 5695). For 2026, check state and utility rebate programs via DSIRE (dsireusa.org).
How much can new windows reduce my energy bill?+
Replacing single-pane windows with ENERGY STAR double-pane windows can reduce heating and cooling costs by 12–24% annually. The average homeowner saves $100–$400 per year depending on climate, home size, and number of windows.
What is the best window frame material?+
Vinyl is the most popular — low cost, excellent insulation, no painting required, 20–40 year lifespan. Fiberglass is the premium choice — strongest, most energy-efficient, expands/contracts minimally. Wood is traditional and beautiful but requires maintenance. Aluminum is durable but conducts heat.
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Window Replacement Cost Calculator is built and maintained by the RealCostIQ editorial team. Cost ranges and rates are checked against published industry data and contractor quotes, and revised when the underlying figures move. Read our data methodology or more about who builds this. Every calculation runs in your browser — no account, and none of your inputs are stored.
Cost ranges and rates here are checked against contractor quotes and published industry data. If a number still looks off, email Support@RealCostIQ.com and we'll review and fix it.