Window Groups
Project Options
Fits into existing frame - faster, cheaper
Window Replacement Estimate
Cost Breakdown
Estimated Total Project Cost
$1,400 – $3,200
4 windows, vinyl frame, retrofit (insert)
Free to use. No signup needed.
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 $300-$1,200 per window installed for most residential window types, before trim. The range depends on window type, frame material, glass package, and whether you choose retrofit or full-frame installation.
- Double-hung: $350-$800 installed (most common residential window)
- Casement: $400-$1,200 installed (crank-open, best for ventilation)
- Sliding: $300-$900 installed (wide openings, low profile)
- Bay/Bow: $1,500-$5,000 installed (projects outward, adds space)
- Picture/Fixed: $300-$1,200 installed (no opening, maximum light)
- Awning: $350-$1,000 installed (hinges at top, rain-friendly)
These prices include the window unit, labor, and disposal of the old window. Add $75-$250 per window for new interior trim. Whole-home replacement with 10-15 standard vinyl double-hung windows typically runs $3,500-$12,000; more for upgraded frames, sizes, or full-frame installation.
Key Takeaways
- Standard vinyl double-hung: $350-$800 per window installed
- Bay/Bow windows: $1,500-$5,000 installed vs. $350-$800 for a standard vinyl double-hung
- Whole-home (10-15 windows): $3,500-$12,000 for standard vinyl double-hung; more for upgrades
Window Frame Materials: Cost and Performance Comparison
Frame material is one of the biggest cost drivers after window size. Typical installed prices run about $600 for vinyl, $900 for fiberglass, and $1,200 for wood per window.
| Frame Material | Typical Installed Price | Best For |
|---|---|---|
| Vinyl | ~$600 (baseline) | Budget-friendly, low maintenance |
| Fiberglass | ~$900 | Durable, paintable, insulates well |
| Wood | ~$1,200 | Classic look, best interior aesthetic |
Key Takeaways
- Vinyl: about $600 installed, low-maintenance baseline
- Fiberglass: about $900 installed, paintable, durable
- Wood: about $1,200 installed, classic interior look, needs more upkeep
Retrofit vs. Full-Frame Window Installation
Retrofit (insert) installation costs 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
- Full-frame labor: $250-$350 per window
- 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
Time per window depends on retrofit vs. full-frame, access, and trim scope. Base it on your crew's own per-window hours rather than a generic production rate.
Key Takeaways
- Retrofit: $150-$300/window labor, fits in existing frame
- Full-frame: $250-$350/window labor, removes to studs
- Choose full-frame when existing frames show rot or water damage
ENERGY STAR Windows: Energy Savings and the Expired Tax Credit
ENERGY STAR estimates certified windows cut household energy bills by an average of up to 13% when they replace single-pane windows (energystar.gov). Savings are smaller when replacing existing double-pane windows. The federal Energy Efficient Home Improvement Credit (25C) ended for windows installed after December 31, 2025 (IRS).
- Standard double-pane: baseline energy performance
- ENERGY STAR double-pane: Low-E coating, usually costs more than standard glass; get supplier pricing for the exact premium
- Triple-pane with argon: best insulation of the three; costs more than double-pane; get supplier pricing
- Federal tax credit: ended for windows installed after December 31, 2025 (IRS 25C)
- State/utility rebates: check your state and utility for current window rebates
Ask your supplier for real payback numbers before promising a homeowner a return on investment; it depends heavily on climate and local energy rates.
Key Takeaways
- ENERGY STAR: up to 13% average savings vs. single-pane, per energystar.gov
- Federal 25C window tax credit ended 12/31/2025
- Triple-pane costs more than double-pane; get supplier pricing for the premium
How to Save Money on Window Replacement
Smart choices can meaningfully lower a window replacement bill, even without a dollar-for-dollar discount guarantee.
- Replace all at once: spreads setup and travel costs over more windows, so the per-window price is usually lower than doing rooms one at a time
- Choose vinyl frames: the lowest-cost of vinyl, fiberglass, and wood, with good energy performance
- Use retrofit installation: costs less than full-frame when existing frames are in good condition
- Federal tax credit: ended for windows installed after December 31, 2025 (IRS 25C); check your state or utility for current rebates instead
- Get 3+ quotes: compare line items, not just the bottom line, since scope (trim, disposal, permits) varies between bids
Key Takeaways
- All-at-once replacement usually lowers the per-window price
- Vinyl is the lowest-cost of the three frame options, with good performance
- Get 3+ quotes and compare what is actually included in each
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 of the three options here. Then pick your energy rating. ENERGY STAR windows usually cost more than standard double-pane; ENERGY STAR estimates certified windows cut energy bills by an average of up to 13% when they replace single-pane windows.
Select retrofit or full-frame installation
Retrofit keeps the existing frame, so it takes less labor and material than full-frame. 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 and disposal. Turn on new interior trim if you need it, and check with your local building department for permit fees. The per-window average helps you compare quotes from contractors.
Window Replacement Cost Formulas
Per-Window Installed = (Base Unit + Labor + Disposal) x Size x Frame x Energy
Trim & Caulking (optional) = $75-$250 per window, added on top
Total = (Per-Window Installed x Count) + Trim (permits vary by jurisdiction - check locally)Where:
- Base Unit
- = Material-only starting cost for the window type at standard size/frame/glass (e.g., double-hung $185-$460)
- Labor
- = Retrofit $150-$300/window, full-frame $250-$350/window
- Disposal
- = $15-$40 per old window (this calculator's own assumption)
- Size Multiplier
- = Calculator assumption, not a published figure: Small 0.8x, Standard 1.0x, Large 1.3x, Oversized 1.7x
- Frame Multiplier
- = Calculator assumption for window types other than double-hung, not a published figure: Vinyl 1.0x, Fiberglass 1.5x, Wood 2.0x, based on typical double-hung installed prices of about $600/$900/$1,200. Get your supplier's quote for non-vinyl casement, picture, awning, and bay/bow units
- Energy Multiplier
- = Calculator assumption, not a published figure: Standard 1.0x, ENERGY STAR 1.12x, Triple-pane 1.35x. Get your supplier's quoted glass upgrade for an exact number
Free to Embed on Your Website
Add this calculator to your blog, resource page, or client portal — just copy one line of code. Your visitors get a useful tool, you get more engagement.
EstimationPro AI For Contractors, By Contractors Get a Detailed Estimate, Not Just a Rough Number
Upload photos or voice notes and get AI-generated line-item estimates with regional pricing and material lists.
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?
How much does it cost to replace all windows in a 3-bedroom house?
What is the cheapest way to replace windows?
How do contractors price window replacement jobs?
Related Tools & Articles
What EstimationPro Does for Contractors
Photos, Voice or Notes In
Describe the job with photos, a voice walkthrough or typed notes and get priced line items for labor and materials. Contractors save 2+ hours per estimate.
Priced for Your Area
Labor and material rates are adjusted for the job's location. You review and edit every line before it goes out.
Automatic Follow-Up
Send the estimate from EstimationPro and your client gets a reminder at 24 hours, 48 hours and 7 days. Many jobs are won on the second or third follow-up.
PDF, Link and Payments
Export a PDF or share a link your client can approve. Collect payments online with Stripe; deposits, milestone schedules and invoices are on Pro.
Related Free Tools
Drywall Install Cost
Estimate drywall installation costs including materials and labor. Choose drywall type, finish level, and room size for an accurate installed cost.
Deck Cost
Estimate the total cost to build a deck. Enter dimensions, material type, and features to get a detailed cost breakdown with materials and labor.
Kitchen Remodel
Estimate kitchen remodel costs by scope. Select cabinets, countertops, flooring, appliances, and finishes to get a detailed cost breakdown.
Bathroom Remodel
Estimate bathroom renovation costs. Select fixtures, tile, vanity, and finishes to get a detailed cost breakdown for your bathroom project.
Roof Repair Cost
Estimate roof repair cost by repair type, size, and roof access. Price shingle patches, flashing, vent boots, valleys, and decking with a low-to-high range.
Roof Replacement Cost
Estimate roof replacement cost by roof size, pitch, material, and tear-off layers. Get a per-square material, labor, and total cost breakdown.
Fence Installation Cost
Estimate fence installation cost by length, type, height, terrain, and gates. Get a per-linear-foot material, labor, and total cost breakdown.
Cost Estimator
Estimate total construction costs for any project type. Enter square footage, project type, and quality level to get a comprehensive cost breakdown.
Turn this job into a full, priced estimate for your client.
Snap photos, talk through the scope, drop in your notes. The AI prices every line item with labor and material rates adjusted for your region, and checks the math.