How Much Does It Cost to Replace Windows?
Window replacement costs $450 to $1,200 per window installed, with a national average of about $800. A whole-house project (10–15 windows) runs $4,500 to $22,500. Costs depend on frame material, window style, glass type, and your state. Use our calculator to estimate your total project cost.
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Updated March 2026 · Based on pricing data from Angi, Modernize (1M+ projects), This Old House, HomeGuide, Fixr, and Homewyse
Average Window Replacement Cost by Style
Window replacement costs vary significantly by style. Standard double-hung and single-hung windows are the most affordable, while bay and bow windows cost 3–8 times more due to their size, multi-panel construction, and more complex installation. All prices below include materials and professional installation for vinyl-frame, double-pane windows.
| Window Style | Low | High |
|---|---|---|
| Single-hung | $200 | $850 |
| Double-hung | $300 | $1,000 |
| Casement | $400 | $1,200 |
| Sliding | $500 | $1,500 |
| Picture (fixed) | $300 | $1,300 |
| Awning | $350 | $1,000 |
| Bay | $1,500 | $5,000 |
| Bow | $1,800 | $6,500 |
Window Replacement Cost by Frame Material
Frame material is one of the biggest cost drivers and determines durability, maintenance, and energy efficiency. Vinyl is the most popular choice — 80% of replacement windows sold are vinyl according to industry data. Wood commands the highest price but offers the best aesthetics and natural insulation.
| Material | Cost/Window | Lifespan |
|---|---|---|
| Aluminum | $200–$800 | 20–25 years |
| Vinyl | $350–$900 | 15–20 years |
| Fiberglass | $400–$1,500 | 30–40 years |
| Composite | $400–$1,800 | 25–35 years |
| Wood | $600–$2,000 | 20–30 years |
What Affects Window Replacement Cost
Understanding the main cost drivers helps you evaluate quotes and find areas where you can save. Here are the seven factors that most affect your final price.
Number of windows
The single biggest factor in total project cost. A full-house replacement (10–25 windows) ranges from $4,500 to $37,500. Contractors typically offer 15–30% bulk discounts for whole-house projects, making per-window cost lower when you replace more at once.
Frame material
Aluminum frames ($200–$800/window) are cheapest but provide poor insulation. Vinyl ($350–$900) is the best value for most homes. Fiberglass ($400–$1,500) offers the longest lifespan at 30–40 years. Wood ($600–$2,000) looks best but requires regular maintenance. Choose based on your climate, budget, and how long you plan to stay.
Glass type and pane count
Single-pane windows ($200–$500) are outdated and waste energy. Double-pane ($450–$2,000) is the standard — 80% of homeowners choose it. Triple-pane ($650–$4,000) provides the best insulation, ideal for cold climates. Low-E coatings add $50–$100 per window but pay for themselves in energy savings within 2–3 years.
Installation type
Retrofit (insert) installation fits new windows into existing frames for $100–$300 in labor per window — faster, cheaper, and less disruptive. Full-frame replacement removes everything to the rough opening, costing $180–$1,500 per window but allows inspection of hidden damage and size changes. Full-frame is required for homes over 20 years old with deteriorated frames.
Geographic location
Northeast and West Coast states pay 10–25% more than the national average. California averages $1,129 per window installed vs. $925 in Arkansas, based on Modernize data from 1 million+ projects. Coastal areas requiring impact-rated glass add $500+ per window. Always compare quotes to your state average, not the national number.
Window size and customization
Standard-size windows are readily available and affordable. Custom or oversized windows require specialized manufacturing, adding 35–60% to material cost. Large windows also increase labor cost because they require additional handling and may need structural support. When possible, stick to standard sizes to control costs.
Story level and accessibility
Second-floor windows add $30 to $200 per window for ladder and scaffold access. Third-floor or hard-to-reach locations can add $100 to $400+ per window. Safety equipment, slower handling, and additional labor time drive these increases. Ground-floor windows are always cheapest to install.
Whole-House Window Replacement Cost
Most homeowners replace 8 to 20 windows at once. Per-window cost drops 15–30% for whole-house projects due to bulk material discounts and more efficient labor scheduling. Here is what to expect by project size.
| Number of Windows | Estimated Total |
|---|---|
| 1–4 | $450–$4,800 |
| 5–8 | $2,100–$7,400 |
| 8–12 | $3,300–$10,200 |
| 12–16 | $4,300–$13,600 |
| 16–20 | $5,400–$17,000 |
| 20–25 | $6,800–$21,250 |
Based on vinyl double-hung windows with standard retrofit installation. Premium materials, specialty styles, or full-frame installation will increase these ranges.
How to Save Money on Window Replacement
- Replace all windows at once for bulk discounts. Contractors offer 15–30% off per-window cost for whole-house projects. A 10-window project at $800/window drops to $680–$720/window with bulk pricing. One installation visit also means one disruption and one cleanup fee instead of multiple.
- Schedule installation in fall or winter. Off-season installation (September through February) can save 10–15% compared to peak spring and summer pricing. Contractors have more availability, shorter wait times, and may offer seasonal promotions to keep crews busy during slower months.
- Choose vinyl frames over wood or fiberglass. Vinyl windows cost $350–$900 vs. $600–$2,000 for wood, with comparable energy performance and zero maintenance required. For most homes, vinyl offers the best value. Save wood frames for street-facing windows if curb appeal is a priority and use vinyl everywhere else.
- Get at least 3 written quotes. Prices vary 2x or more between contractors in the same area. A $10,000 project from one company may be $6,000 from another using the same materials. Ask for itemized quotes that separate window cost, labor, removal, and disposal — so you can compare fairly.
- Use retrofit installation when possible. If your existing window frames are in good condition (no rot, no warping), retrofit installation costs $100–$300/window in labor vs. $180–$1,500 for full-frame. Retrofit is faster (30–60 minutes per window) and less disruptive. Full-frame is only necessary when frames are damaged or you need to change window sizes.
- Prioritize the worst windows first. If you can't afford all windows at once, replace single-pane windows, foggy windows (broken seals), and north/west-facing windows first — these lose the most energy. You'll see the biggest utility bill savings from replacing the worst performers.
Frequently Asked Questions
How much does it cost to replace one window?
A single window replacement costs $450 to $1,200 installed, with a national average around $800. The price depends on frame material (vinyl at $350–$900 vs. wood at $600–$2,000), window style (double-hung at $300–$1,000 vs. bay at $1,500–$5,000), glass type (double-pane is standard), and your location. Labor runs $100 to $300 per standard window. Bay and bow windows cost $1,500 to $6,500+ due to their size and complexity. Always get 3+ itemized quotes — prices vary 2x or more between contractors in the same city.
How much does it cost to replace all windows in a house?
Whole-house window replacement costs $4,500 to $22,500 for 10 to 15 windows, based on data from over 1 million homeowner projects tracked by Modernize. The average home spends $7,000 to $12,000. Per-window cost drops 15–30% with bulk orders because contractors can work more efficiently and negotiate material discounts. A 3-bedroom home with 12 standard vinyl double-hung windows typically runs $6,000 to $12,000 installed. Premium materials (wood, fiberglass) or specialty styles (bay, bow) push the high end to $25,000+.
What is the cheapest type of replacement window?
Aluminum-frame single-hung windows are the cheapest option at $200 to $800 installed. Vinyl is the most popular budget-friendly choice at $350 to $900 per window — it offers better insulation than aluminum, requires no painting, and lasts 15 to 20 years. Double-hung vinyl windows are the sweet spot for most homeowners: affordable, widely available, and easy to clean from inside. Avoid single-pane glass — the small upfront savings ($200–$500 per window) costs more in energy bills over time. Double-pane vinyl is the best value for most homes.
Is it cheaper to replace windows in winter?
Yes. Fall and winter installations save 10–15% compared to spring and summer peak season. Contractors have shorter wait times, may offer off-season discounts, and can schedule faster. According to This Old House's 2025 homeowner survey, the best time to get quotes is September through November for installation in late fall or early winter. Cold-weather installation is safe — modern sealants work in low temperatures, and experienced installers can complete most windows in 30–60 minutes each, minimizing heat loss during the swap.
Should I replace all windows at once or one at a time?
Replacing all windows at once is cheaper per window (15–30% bulk discount) and more convenient (one contractor visit, one disruption). However, if budget is tight, prioritize the worst-performing windows first: single-pane windows, windows with broken seals (foggy between panes), and windows that stick or leak. North-facing and west-facing windows lose the most energy. Start with those, then replace remaining windows within 1–2 years. Whole-house replacement also improves curb appeal consistently, which matters for home value — mismatched old and new windows can look odd.
Do new windows increase home value?
Yes. According to the JLC 2025 Cost vs. Value Report, vinyl window replacement recovers 73–76% of cost at resale, and wood windows recover about 70%. On a $10,000 vinyl window project, expect to add $7,300 to $7,600 in home value. Beyond direct ROI, new windows improve curb appeal, reduce energy bills by $125 to $350 per year (ENERGY STAR estimates 12% annual utility savings), and make homes more attractive to buyers. In a 2025 This Old House survey of 1,000 homeowners, 67% reported saving $25 to $100 per month on energy bills after replacing windows.