Window Replacement Cost Calculator

How to use the window replacement cost calculator

1. Count standard windows: picture, single-hung, double-hung, sliders and casements. These are priced by frame material.
2. Pick the frame material. Vinyl is the most common replacement; wood and composite cost the most.
3. Add specialty windows separately. A bay or bow window is a small project of its own and is priced per unit.
4. Add storm windows if you are keeping old sashes and covering them instead of replacing them.
5. Tick the permit box if any opening changes size, and enter the area of siding or exterior trim that will need patching.

The result shows the typical total, the range, the cost per window, every line of the estimate and a table of what each source says. Type a contractor’s total into “Your quote” to see whether it is below, within or above the range.

Window replacement cost by frame material

All figures are installed prices per standard window (window plus labor), national estimates read from each publisher’s page in October 2026: HomeGuide (February 2026), Fixr (January 2026), Modernize (September 2026) and This Old House’s 2026 survey of 1,000 window buyers. For each source we take its published average, or the middle of its range when it gives no average, and the calculator uses the median of those four numbers, rounded to the nearest $5, as the typical price. Because it mixes survey averages with range midpoints, treat it as a ballpark rather than an exact figure. The low and high in the result are the lowest and highest of the four source averages, not the extreme ends of any one range.

Why not just the middle of one range? HomeGuide’s vinyl range is wide, $200 to $1,500, and its midpoint of $850 sits above every other source. Fixr puts vinyl at $575 on average, Modernize at $450 to $850 and This Old House’s buyers paid $472. Ten vinyl windows therefore come to about $6,150 typical, with source averages from $4,700 to $8,500. That lines up with Angi’s $6,000 to $9,000 for 8 to 12 standard double-hung windows and Modernize’s $4,200 to $7,500 for ten vinyl windows. Across all materials, Angi’s average is $750 per window, Modernize’s $1,047 and Inch Calculator’s $565, so a quote anywhere in that band is not unusual. Bays, bows, garden and storm windows use HomeGuide’s installed ranges ($2,000–$6,000, $3,000–$8,000, $1,000–$4,000 and $150–$400).

What pushes the price up or down

• Insert or full-frame. A retrofit (insert) window goes into the existing frame and is quicker. Full-frame replacement takes the old unit out down to the rough opening and is the right call when the frame is rotted or out of square. Angi lists retrofit replacement at $100 to $300 per window and full-frame at $180 to $1,500.
• Access. Angi puts standard installation labor at $100 to $300 per window, rising to $600 or more for upper-story or complex work. The calculator does not add this automatically, so use the high end of the range for second-floor windows.
• House age. Angi estimates that older or historic homes add $100 to $500 per window for odd sizes, frame repair and removing old materials, and that hidden structural repairs found during the job can add $100 to $2,000 or more.
• Glass package. Low-E coatings, gas fills and triple glazing cost more and save more energy. ENERGY STAR certifies windows by climate zone, so the right glass in Phoenix differs from the right glass in Minneapolis.
• Exterior repairs. If siding or trim has to be cut back to remove the old frame, HomeGuide prices the repair at $2 to $14 per square foot.

How much of the cost comes back at resale

The 2025 Cost vs Value report from Zonda and the Journal of Light Construction (still the latest edition in October 2026; no 2026 report has been published) prices one specific job: replacing ten 3 × 5 ft double-hung windows with insulated low-E units and trimming the outside to match. The national average was $22,073 for vinyl, with 76% of the cost recouped at resale, and $26,781 for wood, with 70% recouped. That is about $2,200 to $2,700 per window, well above the typical ranges above, because the report prices an upscale package and full professional overhead. Treat it as an upper benchmark rather than a typical bid.

Code and safety points to check

• Bedroom escape openings. The International Residential Code requires an emergency escape and rescue opening in sleeping rooms. Under R310, the opening must give at least 5.7 sq ft of net clear area, at least 24 in of clear height and 20 in of clear width, with the sill no more than 44 in above the floor. An insert sits inside the old frame, so its clear opening can be smaller than the old window’s. Check that a bedroom window still meets these numbers. Your local code may differ.
• Lead paint. In homes built before 1978, paid work that disturbs painted surfaces must be done by a firm certified under the EPA’s Renovation, Repair and Painting rule. Old window frames and sashes are a common source of lead dust.
• Permits. A same-size replacement may not need a permit where you live. Changing the size of an opening usually does; HomeGuide puts the permit at $50 to $200.

Painting the new trim inside? The paint calculator handles the walls and trim, and the door installation cost calculator prices a new entry or patio door if you are doing the openings together.

Sources & assumptions

How this calculator gets its numbers. Full method: our methodology.

• Standard windows: for each frame material we read the installed price per window from four sources (HomeGuide Feb 2026, Fixr Jan 2026, Modernize Sep 2026, This Old House Aug 2026 survey). Each source’s average, or its range midpoint when it gives no average, is its central value. The typical price is the median of the four, rounded to the nearest $5; the range is the lowest to highest central value.
• Bay, bow, garden and storm windows use HomeGuide’s installed ranges, and the headline adds their midpoints. Permits ($50–$200) are added only when an opening changes size; siding repair is $2–$14 per sq ft (HomeGuide).
• All prices are national estimates and vary by region, house and installer. Upper-story or hard-to-reach windows can raise labor from about $100–$300 to $600 or more per window (Angi). That premium is not added automatically.
• The Cost vs Value figures are from the 2025 report, the latest edition as of Oct 27, 2026 (costvsvalue.com still redirects to the 2025 report). They are a benchmark for a specific upscale scope: ten 3×5 ft double-hung windows with low-E glass, simulated divided lites and a custom exterior color.

Sources

1. HomeGuide, How much does window replacement cost?. $450–$1,500 per single-hung window; by material: aluminum $175–$1,000, vinyl $200–$1,500, fiberglass $400–$2,000, composite $400–$2,300, wood $800–$3,800; bay $2,000–$6,000, bow $3,000–$8,000, garden $1,000–$4,000; storm windows $150–$400; permit $50–$200; window is 65–75% of the cost.
2. Fixr, How Much Do Vinyl Windows Cost? [2026 Data]. Updated Jan 21, 2026: vinyl $350–$800 per window, $575 average; by material aluminum $200–$800, composite $300–$2,500, fiberglass $400–$1,500, wood $600–$2,000; labor $150–$300 per window; permits $50–$300.
3. Modernize, Window Replacement Cost Calculator. Updated Sep 22, 2026: $1,047 national average per window (all types); by frame for standard double-hung: vinyl $450–$850, aluminum $650–$1,100, fiberglass $900–$1,400, composite $1,000–$1,800, wood $800–$1,500 (the price table; the page’s prose gives vinyl as $400–$850, and we use the table).
4. Modernize, Vinyl Replacement Windows Prices. Updated Sep 23, 2026: ten standard double-hung vinyl windows $4,200–$7,500.
5. This Old House, Window Replacement Cost (2026). Updated Aug 11, 2026; 2026 survey of 1,000 homeowners nationwide who replaced windows: $517 per installed window on average; by frame aluminum $453, vinyl $472, composite $513, wood $544, fiberglass $564.
6. Inch Calculator, Cost to Replace Windows. $565 national average per window, $250–$2,500 typical (page dated Sep 19, 2023). Context only.
7. Angi, How Much Does Window Replacement Cost?. $750 average per window; $7,348 average project; labor $100–$300 per window, up to $600+ for upper-story or complex work; 8–12 windows $6,000–$9,000; retrofit $100–$300 vs full-frame $180–$1,500 per window; older homes add $100–$500 per window; hidden structural repairs $100–$2,000+.
8. Journal of Light Construction (Zonda), 2025 Cost vs Value Report, national averages (latest edition as of Oct 2026). Window replacement, vinyl: $22,073 job cost, 76% recouped; wood: $26,781, 70% recouped.
9. Journal of Light Construction, Window Replacement | Vinyl (project description). Scope: replace ten 3×5 ft double-hung windows with insulated, low-E, simulated-divided-light vinyl windows; trim exterior to match.
10. ENERGY STAR (U.S. EPA), Residential Windows, Doors and Skylights Key Product Criteria. Certified products carry NFRC ratings; window criteria vary by climate zone.
11. UpCodes, R310 Emergency Escape and Rescue Openings (International Residential Code). 5.7 sq ft net clear opening, 24 in minimum height, 20 in minimum width, sill no higher than 44 in.
12. U.S. Environmental Protection Agency, Lead Renovation, Repair and Painting Program. Paid work that disturbs paint in pre-1978 homes requires an EPA lead-safe certified firm.

Last reviewed October 28, 2026. Installed prices vary by region, contractor and job conditions; a written local bid wins.