Average Cost: Homeowners typically pay between $300 and $2,200 per window for installation, with a national average of $1,047 for a single replacement window.
Cost Drivers: Material and labor are the primary cost factors, with window size, style, frame material, and energy features significantly impacting the final price.
Brand Differences: Andersen windows range from $400 to $4,000 per installed unit, while Pella windows typically cost $800 to $2,200, depending on series and material.
Energy Efficiency: Upgrading to features like double or triple-pane glass and Low-E coatings adds to material cost but offers substantial long-term energy savings.
Alternative Projects: Related projects like window AC installation or window film application have their own distinct costs and benefits.
Homeowners considering new windows or replacements face a wide range of costs. The national average for replacing a single window is approximately $1,047 installed. However, prices vary significantly, typically ranging from $300 for a basic vinyl unit to over $2,200 for premium fiberglass or wood windows¹. Some estimates place the average installed cost between $450 and $1,200 per window, averaging around $750.
For a whole-house project involving 10 to 15 windows, expect costs between $6,500 and $18,650. A 2026 survey found homeowners paid an average of $517 per installed replacement window and $7,183 per project overall. Understanding what drives these costs helps in planning your budget and selecting the right windows for your home.
Factors Influencing Window Installation Cost
Several variables affect the total cost of window installation. These include the window's size, style, and configuration, along with the frame material, installation method, and glass package. Exterior conditions, accessibility, regional labor rates, and permits also play a role².
Material costs typically account for 70% to 85% of the total project, while labor makes up 15% to 30%.² Larger windows require more materials and often more specialized glass. The way a window opens or its unique shape (configuration) adds complexity to both manufacturing and installation, increasing costs.
Windows in hard-to-reach locations, such as upper floors, can increase labor costs due to the need for special equipment and enhanced safety measures.
Removal and disposal of old windows typically add $10 to $20 per unit.³
Window Costs by Type
The type of window significantly impacts its installed cost due to differences in design, materials, and installation complexity.
Double-Hung Windows
Double-hung windows are a common choice, with costs generally ranging from $500 to $1,100 installed. Other estimates place the range between $600 and $1,500 per installed unit⁴. The national average for replacement double-hung windows is $350-$1,600.
Material plays a key role in pricing:
Vinyl: Starts around $600-$900.
Fiberglass/Composite: Costs $1,000-$1,300.
Wood: Ranges from $1,400-$2,000+⁴.
Professional installation for double-hung windows typically costs between $325 and $1,275 per window.³
Casement Windows
Casement windows generally cost $700-$1,350 installed. They often cost 10% to 15% more than double-hung windows due to their mechanical crank operators and compression seals⁵. The average cost for casement windows is $815, though prices can range from $700 to $2,300 based on size, material, brand, and labor.
Cost breakdown by material:
Economy Vinyl: $700-$1,100 installed.
Fiberglass: $1,600-$2,100 installed.
Wood Composite/Clad: $1,900-$2,300 installed⁵.
Upgrading to double or triple-pane glass for casement windows can range from $700 to $2,000+.
Sliding Windows
The cost of sliding window installation typically ranges from $775 to $1,652. The average installed cost for replacement sliding windows is about $1,149, with a typical range of $775 to $1,652 per window.
Prices depend on the material:
Basic Vinyl: $200-$500.
High-end Fiberglass/Composite: $1,500-$3,000+.
New sliding windows usually cost $600–$1,150.
Sliding Glass Doors
Sliding glass door installation costs between $1,200 to $4,500 for a standard replacement. Most homeowners pay $2,200 to $3,200 for standard installation. The unit itself, a vinyl sliding glass door, costs $300 to $1,500⁶.
Costs vary by panel count:
Standard 2-panel: $1,000 to $2,200 installed.
3-panel: $2,000 to $4,000.
4-panel: $4,000 to $6,500+.
Replacing an existing sliding door in the same opening is much cheaper, $1,200-$4,500, compared to cutting a new opening for a multi-panel glass wall, which can start at $5,000. Replacing just a failed insulated glass panel might cost $250-$700 per panel, significantly less than a new door at $1,200+⁶.
French Doors
Professional French door installation costs between $2,000 and $5,000 on average. Exterior French doors range from $1,300 to $5,500 with installation, while interior French doors are $600 to $3,000. Labor for French door installation typically runs $300 to $500, with hourly rates of $70 to $120. Creating a new structural opening can push the total to $5,000 or more.
Brand Comparisons: Pella vs. Andersen
The brand you choose has a significant impact on your window installation cost, reflecting differences in materials, construction, and service models.
Andersen Window Installation Cost
Andersen window costs typically range from $400 to $4,000 per window installed. Labor for Andersen windows adds $100 to $500 per window. The average installation cost for Andersen windows is $1,900 per window.
Andersen offers various series at different price points:
Entry-level (100 Series Fibrex): $400 to $1,500 installed.
Mid-range (200/400 Series): $450 to $3,000 installed.
High-end (A-Series, E-Series): $1,000 to $4,000+ installed.
A full house of 15 Andersen windows for a 2,000 sq ft home averages $28,500. For full-service replacement through Renewal by Andersen, costs typically range from $1,500–$5,000 per window installed. Most homeowners pay $1,800–$3,500 per window for Renewal by Andersen projects, with full home replacements (15-20 windows) potentially reaching $30,000–$80,000+.
Andersen window costs by type:
Picture windows: $300-$1,500 installed.
Single-hung/Double-hung windows: $350-$1,500 installed.
Casement windows: $400-$2,000 installed.
Sliding windows: $350-$1,500 installed.
Bay and Bow windows: $1,600-$4,000 installed.
Pella Window Installation Cost
Pella window costs vary by material:
Vinyl: $800-$1,600 per window installed.
Fiberglass: $1,100-$2,200 per window installed.
Wood: $1,100-$2,200+ per window installed⁷.
Pella emphasizes that pricing is project-specific, influenced by material, size, style, installation method, and regional requirements⁷. For specific material information, learn more about fiberglass window installation.
Energy Efficiency and Long-Term Value
Energy-efficient windows offer significant long-term value through improved home comfort and reduced energy bills. New windows can deliver energy savings of up to 31% annually on heating and cooling bills².
Glass package options like double-pane, triple-pane, low-E coatings, and gas fills (e.g., argon) increase energy performance and material cost. These features, while adding to the initial window installation cost, contribute to measurable returns and increased home value. Homeowners recoup an average of 69% of the cost of new windows at resale².
The §25C tax credit for energy-efficient windows expired after December 31, 2025, and no longer applies to windows purchased in 2026¹.
Related Window Projects
Beyond full window replacement, other projects involving windows have distinct costs and benefits.
Window AC Unit Installation Cost
The total cost for a window AC unit, including the unit and professional installation, generally ranges from $300–$1,100+. Professional labor for installing a window AC unit typically costs $150–$300⁸.
Unit costs vary by size:
Small: $150–$300.
Mid-size: $220–$570.
Large: $300–$800+⁸.
Additional costs for window AC installation may include electrical upgrades, ranging from $150–$350+, and removal/disposal of an old unit, which can cost $50–$200⁸. Thumbtack data shows the national average labor cost for window AC installation at $130-$255. For broader AC installation information, refer to our guide on AC installation. You can also compare portable vs. window AC units.
Window Film Installation Cost
Window film is often 80-90% cheaper than replacing windows for energy savings. Residential window film typically costs $1–$5 per square foot for DIY installation, but $7–$24 per square foot when professionally installed. The installed cost for materials and labor is about $5 to $20 per square foot.⁹ Labor alone for window film can be $5 to $10 per square foot.
For a single window, security window film costs about $150 to $300. A typical 3-bedroom home can cost $2,000 to $3,750 for security window film. Factors influencing cost include film thickness, window shape/size, and old film removal. The average residential window tinting costs $316 to $941, averaging $613 for a standard project.⁹
Cost Data Discrepancies
It's common to find varying average window replacement costs across different sources due to diverse methodologies and benchmarks. For example, This Old House reported an average of $517 per window for replacement, while GetWindowCost reported around $750 per window, and Modernize/Oknoplast stated $1,047 per window¹.
These differences reflect various factors, including the types of windows included in surveys (basic vs. premium), regional focus, and whether the data represents material-only costs, labor-only, or full installation. When comparing estimates, consider what the figures truly represent.
Pros
- + Improved Energy Efficiency: New windows can significantly reduce heating and cooling costs by up to 31% annually.
- + Increased Home Value: Homeowners recoup an average of 69% of the cost of new windows at resale.
- + Enhanced Comfort: Better insulation and reduced drafts contribute to a more comfortable indoor environment.
- + Noise Reduction: Modern windows offer superior sound dampening compared to older units.
Cons
- - Significant Upfront Cost: Full home window replacement can be a substantial investment, ranging from thousands to tens of thousands of dollars.
- - Disruption During Installation: The installation process can be messy and temporarily disrupt daily living.
- - Potential for Unexpected Repairs: Older homes might uncover unforeseen issues like rot or structural damage during removal, adding to costs.
The national average cost to replace a single window is approximately $1,047 installed. Prices generally range from $300 for a basic vinyl unit to over $2,200 for premium fiberglass or wood windows.
Window installation costs are primarily influenced by window size, style, configuration, frame material, installation method, glass package, and energy performance features. Labor and regional rates also play a significant role.
Residential window film typically costs $7–$24 per square foot when professionally installed. For a single window, security film costs about $150 to $300.
The average installed cost for replacement sliding windows is about $1,149, with a typical range of $775 to $1,652 per window. Basic vinyl sliding units can be as low as $200-$500.
The total cost for a window AC unit, including the unit and professional installation, generally ranges from $300–$1,100+. Professional labor alone typically costs $150–$300⁸.
Andersen windows typically range from $400 to $4,000 per window installed, while Pella windows cost $800-$2,200 per window installed⁷. The exact cost depends on the specific series, material, and installation method chosen.
No. The §25C tax credit for energy-efficient windows expired after December 31, 2025, and no longer applies to windows purchased in 2026¹.
Homeowners recoup an average of 69% of the cost of new windows at resale².
Deana is a Home Improvement Editor with a passion for helping homeowners navigate renovation, repair, and remodelling with confidence. Specializing in roofing, kitchen and bath remodelling, and outdoor living spaces, she combines industry knowledge with a genuine commitment to making complex home projects feel approachable for readers at every stage of their journey.
Her path into home improvement media began after several years working alongside licensed contractors in project coordination, where she gained firsthand exposure to the realities of home renovation - from permitting delays to material sourcing challenges. This hands-on experience gave her a practical, ground-level understanding of what homeowners actually need to know before hiring a contractor, choosing materials, or starting a project - insight that now shapes every piece of content she creates.
As an editor, Deana oversees content covering product reviews, cost guides, seasonal maintenance tips, and contractor vetting advice, working closely with writers and industry experts to ensure accuracy and relevance. She has a particular interest in emerging trends like smart home technology and energy-efficient upgrades, and enjoys translating technical information into clear, actionable guidance for homeowners.
Beyond editorial oversight, Deana stays closely connected to the pulse of the home improvement industry - tracking shifts in consumer preferences, pricing trends, and the challenges homeowners face when navigating renovation projects, from budgeting to finding trustworthy professionals.
When not editing, Deana enjoys visiting local open houses for design inspiration and tackling small DIY projects around her own home. Based in Adelaide, Australia, she believes a well-maintained, thoughtfully upgraded home is one of the most meaningful investments people can make in their day-to-day quality of life.
Sources:
How Much Does It Cost to Replace Windows in 2026?, OKNOPLAST Team, 2026 (oknoplast.us)
The Easiest Way to Estimate New Windows Cost 2026 (ridgetopexteriors.com)
Double Hung Window Cost (angi.com)
How Much Do Double Hung Windows Cost? 2026 Guide (gm-exteriors.com)
Casement Window Replacement Cost Breakdown (ngwindows.com)
Cost to Install a Sliding Glass Door in 2026 (Real Prices), 2026 (thehandyhearth.com)
Replacement Window Cost in 2026: Real Prices, Examples & What Impacts Cost (pella.com)
Install A Window Ac Unit (networx.com)
Residential Window Tinting Cost: 2026 Pricing Guide, Lucas Gonzalez, 2026 (summitwindowtinting.com)