Window Groups
Project Options
Fits into existing frame - faster, cheaper
Window Replacement Estimate
Cost Breakdown
Estimated Total Project Cost
$1,856 – $4,824
4 windows, vinyl frame, retrofit (insert)
Estimated Annual Energy Savings
ENERGY STAR Certified windows can save $125-$465/year on heating and cooling. The federal tax credit covers up to $600/year for qualifying ENERGY STAR windows.
12,800+ estimates calculated this month
Window Replacement Cost Guide
Per-window pricing, frame comparisons, and installation cost breakdown for residential window replacement.
How Much Does Window Replacement Cost Per Window in 2026?
Window replacement costs $350-$1,200 per window installed for standard vinyl double-hung windows. The range depends on window type, frame material, glass package, and whether you choose retrofit or full-frame installation.
- Double-hung: $350-$1,100 installed (most common residential window)
- Casement: $400-$1,300 installed (crank-open, best for ventilation)
- Sliding: $330-$1,000 installed (wide openings, low profile)
- Bay/Bow: $1,000-$4,500 installed (projects outward, adds space)
- Picture/Fixed: $250-$900 installed (no opening, maximum light)
- Awning: $400-$1,200 installed (hinges at top, rain-friendly)
These prices include the window unit, labor, basic trim, caulking, and disposal of the old window. Whole-home replacement with 10-15 windows typically runs $4,500-$18,000 depending on selections.
Key Takeaways
- Standard vinyl double-hung: $350-$1,100 per window installed
- Bay/Bow windows cost 3-4x more than standard windows
- Whole-home (10-15 windows): $4,500-$18,000 total
Window Frame Materials: Cost and Performance Comparison
Vinyl frames cost 30-60% less than wood or fiberglass while delivering good insulation and zero maintenance. Frame material is the second-biggest cost driver after window size.
| Frame Material | Cost Multiplier | Best For |
|---|---|---|
| Vinyl | 1.0x (baseline) | Budget-friendly, low maintenance |
| Composite | 1.15x | Stronger than vinyl, paintable |
| Fiberglass | 1.3x | Premium durability, paintable, insulates well |
| Wood | 1.4x | Classic look, best interior aesthetic |
| Wood-Clad | 1.6x | Wood interior, aluminum exterior (best of both) |
Key Takeaways
- Vinyl: baseline cost, zero maintenance, 20-30 year lifespan
- Fiberglass: 30% more than vinyl, paintable, 40+ year lifespan
- Wood-clad: 60% premium, best aesthetics and weather protection
Retrofit vs. Full-Frame Window Installation
Retrofit (insert) installation costs 25-40% less than full-frame and works when existing window frames are structurally sound. Full-frame is required when frames are rotted, water-damaged, or you need to change the opening size.
- Retrofit labor: $150-$300 per window, 30-45 minutes each
- Full-frame labor: $250-$500 per window, 1-2 hours each
- Full-frame adds: new flashing, insulation around the entire opening, possible interior/exterior trim replacement
- When to choose full-frame: visible rot on the sill or jamb, water stains on interior trim, frame won't hold a level, or changing window sizes
A crew of 2 can install 5-8 retrofit windows per day or 3-5 full-frame windows per day. Most whole-home projects take 1-3 days.
Key Takeaways
- Retrofit: $150-$300/window labor, fits in existing frame
- Full-frame: $250-$500/window labor, removes to studs
- Choose full-frame when existing frames show rot or water damage
ENERGY STAR Windows and Federal Tax Credits
ENERGY STAR windows save $125-$465 per year on heating and cooling costs according to the Department of Energy. The federal Energy Efficient Home Improvement Credit covers up to $600 per year for qualifying windows through 2032.
- Standard double-pane: baseline energy performance
- ENERGY STAR double-pane: 10-15% cost premium, Low-E coating, saves $125-$465/yr
- Triple-pane with argon: 25-35% cost premium, best insulation, saves $200-$600/yr, reduces noise 50%
- Federal tax credit: 30% of cost up to $600/year for ENERGY STAR Most Efficient rated windows
- State/utility rebates: many programs offer $50-$200 per window on top of federal credits
In cold climates (zones 5-7), triple-pane windows pay back the premium in 5-8 years through energy savings alone. In mild climates, ENERGY STAR double-pane is the sweet spot for value.
Key Takeaways
- ENERGY STAR saves $125-$465/year on energy bills
- Federal tax credit: up to $600/year through 2032
- Triple-pane payback period: 5-8 years in cold climates
How to Save Money on Window Replacement
Replacing all windows at once saves 15-25% vs. doing them in batches thanks to volume discounts and reduced labor mobilization costs. Timing and smart choices can cut your total bill by 20-35%.
- Replace all at once: 15-25% volume discount on materials plus lower per-window labor cost
- Get fall/winter quotes: installers offer 10-20% off-season discounts (September through February)
- Choose vinyl frames: save 30-60% vs. wood or fiberglass with comparable energy performance
- Use retrofit installation: save 25-40% on labor when existing frames are in good condition
- Claim the tax credit: up to $600 back on qualifying ENERGY STAR windows
- Get 3+ quotes: window pricing varies 20-40% between contractors for identical specifications
Key Takeaways
- All-at-once replacement saves 15-25% over batches
- Off-season quotes (fall/winter) save 10-20%
- Get 3+ quotes - pricing varies 20-40% between contractors
How to Use This Calculator
Add your window groups by room or type
Create separate groups for each room or window type in your project. For example, add 8 double-hung for bedrooms, 2 casement for the kitchen, and 1 bay window for the living room.
Set count, type, and size for each group
Enter the number of windows in each group and select the window style and size. Standard size covers most bedrooms and living rooms. Use large or oversized for great rooms and custom openings.
Choose frame material and energy rating
Select a frame material for the project. Vinyl is the most affordable. Then pick your energy rating. ENERGY STAR windows cost 10-15% more but save $125-$465 per year on heating and cooling.
Select retrofit or full-frame installation
Retrofit fits new windows into existing frames and costs 25-40% less. Full-frame removes everything to the studs and is required when frames are rotted or you need a different window size.
Review per-window and total project cost
See the cost breakdown by window group plus labor, trim, disposal, and permits. The per-window average helps you compare quotes from contractors.
Window Replacement Cost Formulas
Per-Window Cost = Base Price x Size Multiplier x Frame Multiplier x Energy Multiplier
Labor = Labor Rate Per Window x Window Count
Trim & Caulking = $50-$150 per window
Disposal = $15-$40 per old window
Total = (Per-Window Cost x Count) + Labor + Trim + Disposal + PermitsWhere:
- Base Price
- = Starting cost for the window type (e.g., double-hung $200-$550)
- Size Multiplier
- = Small 0.8x, Standard 1.0x, Large 1.3x, Oversized 1.7x
- Frame Multiplier
- = Vinyl 1.0x, Composite 1.15x, Fiberglass 1.3x, Wood 1.4x, Clad 1.6x
- Energy Multiplier
- = Standard 1.0x, ENERGY STAR 1.12x, Triple-pane 1.35x
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Frequently Asked Questions
How much does it cost to replace one window?
How much does it cost to replace 10 windows?
Is it cheaper to replace all windows at once?
What is the best window frame material for the money?
Should I choose retrofit or full-frame installation?
How long does whole-house window replacement take?
Are ENERGY STAR windows worth the extra cost?
What size windows does this calculator cover?
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