Window Replacement Cost by Home Size

Key Takeaways

• A 1-3 window project runs $500-2,500; 5 windows $2,500-5,000; 10 windows $6,000-14,000; 15-20 windows $12,000-28,000 installed.
• Per-window pricing falls with volume: $500-900 alone, $350-600 in a full-house project.
• Two-story homes add $50-150 per window in labor for scaffolding and ladder work.
• Home size determines window count, but window style and material determine the per-window price.

Cost by Home Size, 2026

• 1-3 windows (repair or partial replacement): $500-2,500. Highest per-window cost; fixed trip and permit fees dominate.
• Small home, 5 windows (1,000-1,500 sq ft): $2,500-5,000 installed with mid-range vinyl.
• Average home, 10 windows (1,800-2,500 sq ft): $6,000-14,000; the most common project size.
• Large home, 15-20 windows (3,000+ sq ft): $12,000-28,000; expect discounts on the per-window rate but a big total.
• Custom or premium materials: multiply the ranges by 1.5-2.5x for wood, fiberglass, or impact glass.

Why Bigger Homes Do Not Pay Proportionally More

A 20-window home does not cost four times a 5-window home. The per-window price falls as count rises: a single window costs $500-900 because the crew, dumpster, and permit are fixed costs on one unit; the same window in a 20-window job runs $350-600 because those costs spread thin and the contractor prices volume. The real cost drivers for larger homes are the extras: two-story ladder and scaffold work ($50-150 per window), more trim and casing, and the cumulative disposal fees. A 3,000 sq ft colonial with 18 windows at $550 average comes to roughly $10,000-13,000, which is only double a 9-window ranch, not triple.

Home Style and Floor Count Matter

• One-story ranches: $100-175 labor per window; the cheapest install profile.
• Two-story colonials: $150-300 labor per window; scaffolding or extension ladders add $500-1,500 to the project.
• Brick or stucco exteriors: add $100-300 per window for cutting and repointing versus vinyl siding.
• Basement windows: $300-800 installed each; egress windows with wells run $1,000-5,000.
• Historical districts: wood windows with period profiles add 50-100% and often require special approvals.

Regional Differences

Whole-home pricing swings with regional labor. A 10-window vinyl project that costs $8,000-10,000 in Atlanta runs $11,000-13,000 in Boston or Seattle. In hurricane zones, code-mandated impact glass pushes a 10-window home to $15,000-30,000. In cold climates, code-minimum low-U-factor glass adds $100-200 per window to any home size. Get local bids; national averages mislead by thousands on whole-home projects.

Hidden Costs That Scale With Home Size

• Disposal of 15-20 old windows: $400-1,500 in dumpster and hauling fees.
• Interior trim and casing: $50-200 per window if openings change size.
• Lead paint handling in pre-1978 homes: $200-600 per window when disturbed.
• Insulation and flashing upgrades required by current code: $50-150 per window.
• Pergola, deck, or landscaping access issues for second-story work: $200-800.

Ways to Save on a Whole-Home Project

• Replace everything at once; the volume discount of 10-20% disappears if you split the job.
• Standardize window sizes where possible; stock sizes cost 30-50% less than custom.
• Bundle with other exterior work (siding, doors, gutters) for combined contractor discounts.
• Ask about manufacturer rebates; window brands run $50-150 per window rebates several times a year.
• Schedule in the off-season when installer calendars are open and quotes are softer.

DIY vs. Hiring a Professional

For a 1-2 window replacement in a ranch home with easy access, a skilled DIYer can save $100-250 per window, but warranty, flashing, and code risks remain. For whole-home projects, professional installation is the clear choice: the volume discount you negotiated with a contractor exceeds the per-window labor you would save DIY, and the manufacturer warranty stays intact. The hybrid that works: hire pros for all window installs, do the interior trim and painting yourself, and save $50-150 per window safely.

Sample Whole-Home Scenarios

• 1,200 sq ft ranch, 5 windows, vinyl, ground floor: $2,500-4,000 installed. The cheapest full-home profile; easy access and stock sizes keep labor low.
• 2,000 sq ft colonial, 10 windows, vinyl, two stories: $7,000-11,000. The national average project; second-story labor adds $500-1,000.
• 2,400 sq ft colonial, 12 windows, fiberglass: $12,000-18,000. Premium frames on a typical footprint.
• 3,200 sq ft home, 18 windows, vinyl, impact glass: $22,000-40,000 in hurricane zones, or $12,000-18,000 inland.

Notice that the 18-window hurricane project costs three times the 5-window ranch: impact glass, not home size, drives the biggest jumps. When budgeting, count the openings, note which are second-story or masonry, and price the glass package before you shop for frames.