How Much Does It Cost to Replace Windows?
$300 to $1,500 per window installed is the average cost to replace windows, with most homeowners paying around $450 to $750 per window. For a full house replacement of 15 to 20 windows, total costs typically run $7,000 to $20,000. The biggest factors driving cost are the frame material you choose, the type of glass, and whether you need a simple retrofit insert or a full frame replacement.
Knowing how much window replacement costs helps you plan one of the most impactful home improvement projects you can take on. New windows improve energy efficiency, reduce outside noise, boost curb appeal, and increase your home's resale value. According to Remodeling Magazine's Cost vs. Value report, vinyl window replacement recoups about 68% of its cost at resale, while wood window replacement recovers roughly 63%.
Window Replacement Cost by Frame Material
$300 to $900 per window installed is the range across frame materials, from vinyl at the low end to fiberglass at the top. Your frame material is the primary cost driver, and here is what each option costs per window including standard installation.
| Frame Material | Cost Per Window (Installed) | Best For |
|---|---|---|
| Vinyl | $300 - $500 | Budget-friendly, low maintenance, good insulation |
| Aluminum | $350 - $600 | Slim profiles, modern look, coastal durability |
| Composite / Clad | $450 - $750 | Wood look outside, low maintenance inside |
| Wood | $500 - $800 | Traditional look, best insulation, paintable |
| Fiberglass | $500 - $900 | Strongest, most durable, excellent insulation |
Vinyl windows are the most popular choice for replacement projects, accounting for roughly 70% of all residential window sales. They provide solid energy performance at the lowest price point and never need painting or staining. Fiberglass windows cost more upfront but are the strongest and most dimensionally stable option available, expanding and contracting at nearly the same rate as the glass itself.
Window Replacement Cost by Glass Type
$50 to $300 per window extra is what upgrading your glass adds to the base price, depending on the type. The glass you select affects both your energy bills and your upfront cost, but premium options can pay for themselves through lower heating and cooling costs over time.
| Glass Type | Added Cost Per Window | Energy Benefit |
|---|---|---|
| Double pane standard | Included in base price | Baseline insulation, meets most building codes |
| Double pane low-E | +$50 - $100 | Reflects heat, blocks UV rays, reduces energy loss by 30-50% |
| Triple pane | +$100 - $200 | Best insulation, ideal for cold climates or noise reduction |
| Impact resistant | +$150 - $300 | Required in hurricane zones, laminated safety glass |
Double pane low-E glass is the sweet spot for most homeowners. The cost of replacing windows goes up slightly with low-E glass, but the coating can reduce energy costs by 30% to 50% compared to standard clear glass. In cold climates where heating is the primary concern, triple pane windows provide the best thermal performance and are worth the extra $100 to $200 per window.
Window Replacement Cost by Window Style
$250 to $3,500 per window installed is the range across window styles, from fixed picture windows to bay and bow configurations. Standard single hung and double hung windows are the most affordable, while specialty shapes and larger configurations cost significantly more.
| Window Style | Typical Cost (Installed) | Notes |
|---|---|---|
| Single or double hung | $300 - $800 | Most common residential style, widely available |
| Casement | $350 - $900 | Crank-operated, excellent ventilation and seal |
| Sliding | $300 - $800 | Good for wide openings, easy to operate |
| Picture / fixed | $250 - $700 | No moving parts, most affordable per square foot |
| Bay or bow | $1,200 - $3,500 | Multi-panel, projects outward, complex installation |
Bay and bow windows are the most expensive style to replace, costing $1,200 to $3,500 per unit. These multi-panel windows require structural support, custom framing, and significantly more labor than standard flat windows. If your project includes a bay or bow window, expect it to account for a large share of the total budget.
Installation Method Costs
$0 to $500 per window extra is what installation method adds beyond the base window price. How the window is installed has a major impact on the total, with three common methods suited to different situations.
| Installation Method | Added Cost Per Window | When to Use |
|---|---|---|
| Retrofit / insert | Included in base price | Existing frame is in good condition and square |
| Full frame replacement | +$100 - $200 | Old frame is rotted, damaged, or out of square |
| New construction (new opening) | +$300 - $500 | Adding a window where none existed before |
Retrofit installation is the most common approach for replacement projects. The installer removes the old window sash and hardware but leaves the existing frame in place, then slides the new window into the opening. This method is faster, less expensive, and causes minimal disruption to interior and exterior trim. Full frame replacement is necessary when the existing frame is rotted, water-damaged, or structurally compromised. It involves tearing out everything down to the rough opening and rebuilding with new framing, flashing, and trim.
If you are cutting a brand new window opening into an existing wall, expect to pay an additional $300 to $500 per window for framing, header installation, exterior finishing, and drywall repair. This type of work often requires a building permit and may need to meet specific egress requirements for bedrooms. Planning a larger renovation? A home addition ($80 to $200 per square foot) that includes new windows from the start can be more cost-effective than adding windows to existing walls individually.
Whole House Window Replacement Cost
$3,500 to $25,000 is the typical range for a whole house window replacement, depending on the number of windows and frame material. Most homes have between 15 and 25 windows - here is what a full replacement costs using standard double hung windows with double pane low-E glass and retrofit installation.
| Number of Windows | Vinyl | Wood | Fiberglass |
|---|---|---|---|
| 10 windows | $3,500 - $6,000 | $5,500 - $9,000 | $5,500 - $10,000 |
| 15 windows | $5,250 - $9,000 | $8,250 - $13,500 | $8,250 - $15,000 |
| 20 windows | $7,000 - $12,000 | $11,000 - $18,000 | $11,000 - $20,000 |
| 25 windows | $8,750 - $15,000 | $13,750 - $22,500 | $13,750 - $25,000 |
How much it costs to replace windows drops when you buy in bulk. Many window companies offer volume discounts for whole house projects. If you are replacing 15 or more windows, ask about package pricing. It is not uncommon to save 10% to 15% compared to the per-window price when you commit to a full house replacement.
Factors That Affect Window Replacement Cost
$300 to $1,500 per window is the typical range, and several key factors determine where your project falls within it.
Window Size and Custom Dimensions
Standard window sizes are the most affordable because manufacturers produce them at scale. Custom-sized windows cost 20% to 50% more than standard sizes and take 2 to 6 weeks for fabrication. If your home has non-standard openings, a retrofit insert that fits within the existing frame is often cheaper than ordering custom full-frame units.
Energy Efficiency Ratings
Windows with ENERGY STAR certification meet strict performance thresholds for your climate zone. They typically cost 10% to 15% more than non-certified windows but qualify for federal tax credits of up to $600 per year (through the Inflation Reduction Act, available through 2032). Look for a low U-factor (0.30 or below) in cold climates and a low Solar Heat Gain Coefficient (SHGC of 0.25 or below) in hot climates.
Exterior Finishing and Trim
Full frame replacements often require new exterior trim, capping, and possibly new siding around the window opening. This can add $50 to $200 per window. Replacing the interior and exterior casing at the same time is common - new window trim costs $100 to $350 per window and gives the finished project a clean, updated look. If you are also planning to replace your home's siding ($6,000 to $20,000 for most homes), coordinating the projects can save money on labor since the crew is already working on the exterior.
Permits and Building Codes
Most replacement-in-kind window swaps do not require a permit. However, if you are changing the size of the opening, adding new windows, or converting a window to a door, you will likely need a building permit ($50 to $300). Some homeowners take the opportunity to swap a large window for French doors, which cost $1,500 to $5,000 per door installed and open up a room to a patio or deck. Bedroom windows must meet egress requirements (minimum 5.7 square feet of clear opening) per the International Residential Code.
Geographic Location
Labor rates vary significantly by region. Window replacement in high cost-of-living areas like the Northeast or West Coast runs 20% to 40% higher than in the South or Midwest. Remote or rural locations may also cost more due to travel time and limited installer competition.
How to Save Money on Window Replacement
$700 to $4,000 in potential savings is achievable with the right approach. These tips can help reduce your total cost.
- Get at least 3 quotes. Pricing varies dramatically between installers. National chains often charge 30% to 50% more than local contractors for the same quality product.
- Avoid high-pressure sales. Companies that offer a "today only" discount are inflating the original price. Legitimate installers give you time to compare quotes.
- Replace all windows at once. Whole house projects get better per-window pricing than doing a few windows at a time. You also save on the installer's mobilization costs.
- Claim the federal tax credit. ENERGY STAR certified windows qualify for a 30% tax credit up to $600 per year through 2032. Keep your receipts and manufacturer certifications.
- Choose retrofit over full frame when possible. If your existing frames are in good condition, retrofit installation saves $100 to $200 per window and finishes faster.
- Skip the brand name markup. Premium brands like Andersen and Pella charge 30% to 60% more than quality mid-range brands. Ask your installer what they recommend for the best value.
Planning to DIY? Replacing windows yourself? Standard replacement windows are designed for DIY-friendly installation.
Shop on AmazonFrequently Asked Questions
How much does it cost to replace windows in a house?
Window replacement costs $300 to $1,500 per window installed, with most homeowners paying $450 to $750 per window. For a whole house with 15 to 20 windows, expect to pay $7,000 to $20,000 total. The final price depends on frame material, glass type, window style, and whether you need a retrofit insert or full frame replacement.
What is the cheapest type of replacement window?
Vinyl windows are the most affordable option at $300 to $500 per window installed. They require almost no maintenance, resist moisture well, and offer good energy efficiency for the price. Aluminum frames are a close second at $350 to $600 per window, though they conduct heat more than vinyl and are less energy efficient in extreme climates.
Is it worth replacing 20 year old windows?
Yes, replacing 20 year old windows is usually worth it. Older windows with single pane glass or failed seals can increase your heating and cooling bills by 25% to 30%. Modern double pane low-E windows can reduce energy costs by $125 to $465 per year according to the U.S. Department of Energy. You will also benefit from better noise reduction, improved home value, and reduced maintenance.
What is the difference between retrofit and full frame window replacement?
Retrofit (insert) replacement fits a new window into your existing frame, costing $300 to $700 per window. Full frame replacement removes the entire window including the frame down to the rough opening, costing $400 to $900 per window. Retrofit is faster and less expensive, but full frame replacement is necessary if the existing frame is rotted, damaged, or out of square.
How long does it take to replace windows in a house?
A professional crew can typically replace 10 to 15 retrofit windows in a single day. Full frame replacements take longer, usually 4 to 8 windows per day since the crew needs to remove exterior trim, replace flashing, and refinish the opening. A full house of 15 to 20 windows usually takes 1 to 3 days depending on the installation method and window styles involved.