Cost to Replace Windows in 2026: Price by Type, Size, and Material
Replacing a standard double-hung window costs $400 to $900 per window installed for vinyl double-pane in 2026. A full house of 15 windows runs $6,000 to $18,000 professionally installed, depending on window type, size, and material. The cost to replace windows varies most by frame material (vinyl, wood, fiberglass, aluminum) and whether you are doing a full-frame tear-out or a pocket insert replacement into the existing frame.
Window replacement sits near the top of any home improvement cost list and near the bottom of simple payback calculations based on energy savings alone. The math almost never works out on energy savings payback in under 10 years. The real reasons people replace windows are comfort (drafts, condensation, noise), appearance (rotted frames, failed seals with visible fogging), and home value at resale, where new windows signal a well-maintained home regardless of energy savings calculation.
The window cost calculator estimates total project cost based on window count, type, and material.
Open the Window Cost Calculator →Window Replacement Cost by Window Type in 2026
| Window type | Installed cost per window | Notes |
|---|---|---|
| Single-hung (sash raises only) | $350 to $700 | Most common; lowest cost |
| Double-hung (both sashes raise) | $400 to $900 | Easiest to clean; most popular US style |
| Casement (crank-out hinge) | $500 to $1,100 | Best seal; good for hard-to-reach spots |
| Sliding (horizontal) | $400 to $850 | Garage and basement applications |
| Picture (fixed, no opening) | $300 to $800 | Maximum view; no ventilation |
| Bay or bow | $1,500 to $4,500 | Multiple panels; structural considerations |
| Awning (top-hinged, opens out) | $450 to $950 | Stays open in light rain |
| Skylight | $900 to $2,500 | Roofing work required; separate category |
Window Frame Material Cost Comparison
| Frame material | Cost vs vinyl | Maintenance | Lifespan | Best for |
|---|---|---|---|---|
| Vinyl (PVC) | Baseline | None (no painting) | 20 to 40 yrs | Most homes; best value |
| Aluminum | +10 to +20% | Minimal | 30+ yrs | Commercial; modern aesthetic |
| Fiberglass | +30 to +60% | Minimal | 40 to 50+ yrs | Extreme climates; best insulator |
| Wood (interior only) | +50 to +100% | Paint every 5-7 yrs | 20 to 50 yrs | Historic homes; premium look |
| Wood-clad (aluminum or vinyl exterior) | +60 to +120% | Low (cladding protects exterior) | 30 to 50 yrs | Premium with lower exterior maintenance |
| Composite (wood fiber + polymer) | +20 to +50% | Minimal | 30 to 50 yrs | Budget wood alternative |
Insert vs Full-Frame Window Replacement
A pocket insert (retrofit) replacement slides a new window unit into the existing frame without removing the surrounding trim, siding, or drywall. It is faster, less disruptive, and less expensive, typically saving $75 to $200 per window in labor. The trade-off: if the existing frame has rot, moisture damage, or is out of square, the insert sits on a compromised foundation and problems recur. The new window opening is also slightly smaller than the original (the new unit must fit inside the old frame), reducing glass area by 1 to 2 inches on each side.
A full-frame replacement removes the old window, frame, and exterior trim completely, exposing the rough opening for inspection, moisture barrier repair, and new frame installation. It adds $100 to $300 per window in labor and requires exterior painting or trim matching after installation. Full-frame replacement is the correct choice when: the existing frames are rotted or moisture-damaged, the house was re-sided after the original windows were installed (making insert replacement impossible), the window is being resized, or the rough opening needs flashing repair. For the exact measurements needed before ordering either replacement type, our window measurement guide covers the step-by-step process for both insert and full-frame replacement. For the door that may need replacement at the same time, our exterior door replacement cost guide covers pricing by material and style.
Energy Efficiency, Glass Options, and Federal Incentives
| Glass package | U-Factor | SHGC | Cost premium | Best climate |
|---|---|---|---|---|
| Single-pane (existing) | 1.0 to 1.2 | 0.80 to 0.90 | Baseline (old) | None; replace |
| Double-pane, no coating | 0.45 to 0.55 | 0.55 to 0.70 | Standard | All climates |
| Double-pane, Low-E coating | 0.28 to 0.40 | 0.25 to 0.40 | +5 to +15% | Hot climates (low SHGC) |
| Double-pane, Low-E, argon fill | 0.25 to 0.35 | 0.25 to 0.40 | +10 to +20% | Cold climates |
| Triple-pane, Low-E, argon | 0.15 to 0.25 | 0.20 to 0.35 | +30 to +60% | Very cold (Zone 6-7) |
The federal Energy Efficient Home Improvement Credit (Section 25C) provides a 30 percent tax credit on qualifying windows up to $600 per year for windows that meet ENERGY STAR Most Efficient criteria. ENERGY STAR-certified windows must meet specific U-Factor and SHGC thresholds that vary by climate zone. Verify current qualifying products at the ENERGY STAR website before purchase; the list is updated annually. Many utilities also offer rebates on qualifying window replacements independent of the federal credit.
Three Real Window Replacement Projects
Example 1: Whole-house vinyl replacement in Columbus, Ohio
A homeowner replacing all 18 windows in a 1,950 sq ft home built in 1988 with original single-pane aluminum windows. Insert replacement throughout (frames in good condition). Double-pane, Low-E, argon-filled vinyl double-hung windows. Per-window cost: $620 installed (including screen). Total: 18 x $620 = $11,160. Federal 25C credit: 30% of $11,160 capped at $600 = $600 tax credit. Utility rebate: $25 per window x 18 = $450. Net cost after incentives: $10,110. Estimated annual energy savings (heating and cooling): $280. Simple payback on net cost: 36 years. The homeowner replaced for comfort (eliminating severe drafts in Ohio winters) and improved resale presentation, not for energy payback.
Example 2: Three failing windows in Houston, Texas
A homeowner replacing 3 double-hung windows with failed seals (visible fogging between panes) in a master bedroom area. Full-frame replacement required because existing frames showed moisture damage. Vinyl double-hung with solar control Low-E (low SHGC for Houston heat): $780 per window installed. Total: 3 x $780 = $2,340. The homeowner chose selective replacement rather than whole-house replacement because the remaining 12 windows had functioning seals and 8-year-old vinyl frames. Targeted replacement of the 3 failing windows addressed the comfort and appearance issues at one-sixth the cost of whole-house replacement.
Example 3: Fiberglass windows for a historic renovation in Savannah, Georgia
A homeowner renovating a 1920s Craftsman-style home with a historic preservation requirement that windows match the original double-hung profile. Fiberglass frames with interior wood-grain paint finish and simulated divided lites (SDL) to match historic appearance. 14 windows at $1,450 per window installed (full-frame, matching historic profile): $20,300. The premium fiberglass over vinyl was required by the neighborhood historic guidelines, and the SDL profile was necessary to match surrounding homes. Fiberglass was the correct material choice: it holds paint better than vinyl (which cannot be repainted), does not expand and contract as dramatically as wood, and provides the wood-like appearance with far less maintenance.
The window cost calculator gives you a project total based on window count, type, frame material, and insert vs full-frame choice.
Calculate Window Replacement Cost →Frequently Asked Questions About Window Replacement Cost
How much does it cost to replace one window?
Replacing one standard double-hung vinyl window costs $400 to $900 installed in 2026, including the window unit and professional installation. Single-window replacement is more expensive per window than whole-house projects because contractors typically apply a minimum trip charge. A single window replacement that would cost $650 per window in a 15-window project may cost $850 for one window alone because the mobilization cost is spread over fewer units.
Is it worth replacing all windows at once?
Replacing all windows in one project reduces the per-window cost by $75 to $200 per unit because contractors discount for volume (one mobilization, one crew setup). It also ensures consistent appearance and matching frames throughout the house. If only some windows are failing, targeted replacement of the failing units is more economical in the short term. Whole-house replacement makes most sense when: all windows are at or past their expected lifespan, the home is being prepared for sale, or an energy efficiency upgrade (such as going from single-pane to triple-pane) justifies replacing everything at once.
How long does it take to replace windows?
An experienced window installation crew installs 2 to 4 insert replacement windows per hour. A whole house of 15 to 20 windows takes one to two days for a crew of two. Full-frame replacements take 50 to 100 percent longer due to exterior trim work, moisture barrier installation, and flashing around the new frame. A single window replacement is typically completed in 1 to 3 hours depending on the replacement type and any complications with the existing frame.
Do new windows increase home value?
According to Remodeling magazine’s Cost vs Value report, vinyl window replacement returns approximately 65 to 70 percent of its cost in increased home value. Windows do not increase value dollar-for-dollar but significantly affect buyer perception: visibly failed windows (fogging, rot, drafts) are a price negotiating point and an inspection finding; new windows remove that friction. In colder climates, energy-efficient windows are a selling point that buyers actively look for and pay modest premiums for.
What is the best window brand?
Andersen, Pella, and Marvin are the three largest US window manufacturers with the strongest dealer and warranty networks. Milgard, Simonton, and Ply Gem produce quality products at lower price points available through home improvement retailers. Brand matters less than the product tier within a brand: a mid-grade Simonton window installed correctly outperforms an entry-level Pella installed poorly. Prioritize a contractor with manufacturer certification (which extends warranty coverage) and local references over the specific brand they carry.
Can I replace windows myself?
Insert replacement of standard residential windows is achievable for a capable DIYer with basic carpentry skills. The window unit slides into the existing frame and is fastened with screws, shimmed level and plumb, and sealed with caulk and foam backer rod. The savings are $100 to $250 per window in labor. Full-frame replacement requires removing exterior trim, siding, and potentially the interior casing, installing a proper weather barrier and flashing, and matching the interior and exterior trim after installation. Most homeowners hire professionals for full-frame replacement.
What is a U-factor for windows and what is a good number?
U-factor measures how much heat a window allows to pass through (both conductive and convective). A lower U-factor means better insulation. The ENERGY STAR standard for windows varies by climate zone: Zone 1 (South) requires U-factor of 0.40 or lower; Zones 2 through 5 require 0.30 or lower; Zones 6 and 7 (North) require 0.27 or lower for ENERGY STAR certification. Standard double-pane vinyl windows run 0.30 to 0.40. Triple-pane windows reach 0.15 to 0.25, warranted in Climate Zone 6 and 7 but usually not cost-effective in warmer climates.
What is a good SHGC for windows?
Solar Heat Gain Coefficient (SHGC) measures the fraction of solar radiation that enters the home through the glass. In cooling-dominated climates (South, Southwest), a low SHGC of 0.25 or below reduces air conditioning load. In heating-dominated climates (North, Mountain), a higher SHGC of 0.35 to 0.45 on south-facing windows is beneficial for passive solar heating during winter. ENERGY STAR requires SHGC of 0.25 or lower for the South zone and has no SHGC restriction for the North zone where heating dominates.
Related Calculators and Guides
For ENERGY STAR-certified window product lists and U-factor requirements by climate zone, the ENERGY STAR Windows, Doors, and Skylights program maintains the current qualified product list. For the federal tax credit, the IRS Energy Efficient Home Improvement Credit page provides current qualifying thresholds and credit amounts.