Double-Pane Window Replacement Cost: $300–$2,100 per Window (Average $1,000) in 2026
Author: CostGuideHQ Editorial·✓ Fact-checked·Updated July 2026·6 min read·6 sources·US national averages, USD Quick answerQuick answer: Full double-pane window replacement runs $300 to $2,100 per window, averaging around $1,000 (HomeAdvisor). If your frame is sound, swapping just the insulated glass unit costs far less — $150 to $600 (Fixr, This Old House) — roughly half the price of a full replacement.
- ✓Full double-pane window replacement costs $300 to $2,100 per window, averaging about $1,000 nationally (HomeAdvisor).
- ✓Replacing only the glass (IGU) in a sound frame costs $150 to $600 per window, about half the cost of a full replacement (Fixr, This Old House, HomeAdvisor).
- ✓Upgraded glass fills cost more than clear double-pane: Low-E coating runs $350 to $840, argon-filled $375 to $850, krypton-filled $525 to $1,190 (Fixr).
- ✓A 10-window whole-house double-pane project averages $6,700, typically $4,794 to $8,723 (Fixr).
How much does double pane window replacement cost?
National average
$1,000
per window
Typical range
$300–$2,100
Most projects
Whole project
$4,794–$8,723
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Cost by material / type
| Type | Low | High |
|---|
| glass-only IGU replacement | $150 | $600 |
| full window replacement (double-pane) | $300 | $2,100 |
| Low-E double-pane glass | $350 | $840 |
| argon-filled double-pane glass | $375 | $850 |
| krypton-filled double-pane glass | $525 | $1,190 |
| triple-pane (comparison) | $400 | $950 |
What affects the cost?
- Glass-only vs. full-unit replacement — swapping just the insulated glass unit (IGU) in a sound frame runs $150-$600 per window, well under the $300-$2,100 cost of a full double-pane window replacement, because the frame, trim, and exterior sealing stay untouched (Fixr, This Old House, Bob Vila)
- Frame material — installed double-pane windows run $379-$690 for vinyl, $383-$696 for aluminum, $540-$983 for fiberglass, $616-$1,121 for wood, and $1,428-$2,598 for steel (Fixr)
- Glass package — upgraded fills and coatings cost more than clear double-pane glass: Low-E coating runs $350-$840, argon-filled $375-$850, and krypton-filled $525-$1,190 per window (Fixr, This Old House)
- Window size — larger panes cost more in material alone: a 24x36-inch double-pane runs $130-$180 versus $650-$810 for a 46x54-inch pane (Fixr, This Old House)
- Number of windows — per-window labor drops on bigger jobs, from $94-$172 per window on a 1-4 window job to $84-$152 per window on a 20+ window project (Fixr)
- Energy performance — double-pane glass delivers a 24% boost in winter efficiency and an 18% increase in summer efficiency over single-pane (HomeAdvisor), and efficient upgrades can save a household $125-$340 a year (Fixr)
- Labor rates — glazing and window-replacement labor runs $50-$125 per hour depending on region and job complexity (Fixr, This Old House)
How much does double-pane window replacement cost?
A full double-pane window replacement — new frame and glass, installed — costs $300 to $2,100 per window, averaging around $1,000 nationally (HomeAdvisor). Frame material moves that number a lot: installed double-pane windows run $379 to $690 for vinyl, $383 to $696 for aluminum, $540 to $983 for fiberglass, $616 to $1,121 for wood, and $1,428 to $2,598 for steel (Fixr). Doing the whole house at once brings the per-window price down: a 10-window project averages $6,700, typically $4,794 to $8,723 (Fixr), which works out cheaper per window than a single one-off replacement because labor is spread across the job. Bigger jobs keep scaling that discount — Fixr’s labor-only figures drop from $94-$172 per window on a small 1-4 window job to $84-$152 per window once you’re past 20 windows.
Is it cheaper to replace just the glass or the whole window?
Replacing just the glass is almost always cheaper, as long as your frame is still sound. Swapping the insulated glass unit (IGU) inside an existing double-pane frame costs $150 to $600 per window (Fixr, This Old House), versus $300 to $2,100 for a full frame-and-glass replacement (HomeAdvisor) — HomeAdvisor puts the savings at roughly 50% off installation cost when the frame doesn’t need to be touched. The catch: double-pane glass is a sealed unit, so a foggy or failed pane usually means ordering a whole new IGU sized to your frame, not a simple pane swap like single-pane glass. Bob Vila’s broader window-glass-replacement average ($281, range $180-$411) blends in cheaper single-pane repairs, so it reads lower than the double-pane-specific $150-$600 figure — use the double-pane number if that’s what you have.
What do glass upgrades like Low-E, argon, and krypton cost?
Clear double-pane glass is the baseline; coatings and gas fills add cost on top. A Low-E coating, which reflects heat while letting light through, runs $350 to $840 per window. Argon-filled glass, which insulates better than plain air between the panes, costs $375 to $850, and krypton-filled glass — denser and better-insulating than argon, useful in narrower gaps — runs $525 to $1,190 (Fixr, This Old House). For comparison, stepping up to triple-pane glass entirely costs $400 to $950 per window, in the same ballpark as krypton-filled double-pane, which is why some homeowners choose one upgrade over the other rather than stacking both.
How much will double-pane windows lower my energy bills?
Double-pane glass delivers a 24% boost in winter heating efficiency and an 18% increase in summer cooling efficiency compared to single-pane (HomeAdvisor). On a whole-house replacement, Fixr estimates that translates to 20% to 30% lower annual energy bills for up to 20 years, and pegs smaller efficiency upgrades — like adding a Low-E coating or gas fill — as worth $125 to $340 a year in savings. That payback is a big reason full replacement pencils out even when it costs more upfront than an IGU swap: you’re paying for better-sealed frames and glass, not just glass. Installation quality decides whether you actually capture those savings: “Windows that are poorly made or installed can cause discomfort, increase energy costs, and cause damage to your home down the road, so plan carefully,” says Amanda Hatherly, CEO of the Building Performance Institute (This Old House).
Prices vary by region, frame material, and glass package, so treat the figures above as a planning budget. Get two or three local quotes, and ask whether you actually need a full frame replacement or just a glass swap before committing to a number.
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Frequently asked questions
How much does it cost to replace a double-pane window?+
A full double-pane window replacement — frame and glass — costs $300 to $2,100 per window, averaging about $1,000 nationally (HomeAdvisor). A 10-window whole-house project averages $6,700, typically $4,794 to $8,723 (Fixr).
Is it cheaper to replace just the glass instead of the whole window?+
Yes. If your existing frame is in good shape, swapping just the insulated glass unit (IGU) runs $150 to $600 per window (Fixr, This Old House) — HomeAdvisor puts the savings at about 50% off the cost of a full replacement.
What does Low-E, argon, or krypton glass cost extra?+
Clear double-pane glass is cheapest. Low-E coating adds up to $350 to $840 per window, argon-filled glass $375 to $850, and krypton-filled glass $525 to $1,190 (Fixr, This Old House) — krypton is priciest because it insulates better than argon in a thinner gap.
How much more does triple-pane glass cost than double-pane?+
Triple-pane glass runs $400 to $950 per window compared to $150 to $600 for double-pane (Fixr, This Old House) — meaningfully more upfront, though it adds another insulating layer over double-pane.
Does frame material change the cost of a double-pane window?+
Yes. Installed double-pane windows run $379 to $690 for vinyl, $383 to $696 for aluminum, $540 to $983 for fiberglass, $616 to $1,121 for wood, and $1,428 to $2,598 for steel (Fixr).
How much do double-pane windows actually save on energy bills?+
Double-pane glass delivers a 24% boost in winter efficiency and an 18% increase in summer efficiency over single-pane (HomeAdvisor). Fixr estimates energy-efficient upgrades save a household $125 to $340 a year, and whole-house double-pane replacement can cut annual energy bills 20% to 30% for up to 20 years.
Does replacing more windows at once lower the per-window price?+
Yes. Fixr's labor figures show per-window labor cost dropping from $94 to $172 on a 1-4 window job to $84 to $152 per window on a 20+ window project, since the crew is already on-site with equipment set up.
Why do window glass replacement estimates vary so much between sources?+
Bob Vila's broader window-glass-replacement figure averages $281 (range $180-$411) because it blends in cheaper single-pane repairs alongside double-pane jobs, while Fixr and This Old House isolate double-pane-only pricing at $150-$600, averaging $375 — a more relevant number if your window is already double-pane.
Sources
Figures synthesized and cross-checked across these sources (retrieved 2026-07-28):
- HomeAdvisor — Average cost per window $1,000; typical range $300-$2,100 (extended range $150-$7,000). By size: 2x1 ft $150-$220 up to 10x6 ft $4,500-$6,600. By window type: single-hung $200-$900, double-hung $250-$1,100, casement $250-$2,000, bay $700-$6,000, bow $1,600-$7,000. By frame material: aluminum $200-$700, vinyl $300-$1,500, wood $400-$1,800, fiberglass $600-$2,500. Glass type: Low-E coating $500-$1,400, tempered $300-$1,000, laminated $400-$950. Double-pane windows deliver a 24% boost in efficiency during winter and an 18% increase in summer. If frames are in good condition and only the glass needs replacing, that saves 50% on installation costs.
- Fixr — National average $6,700 for a 10-window installation, range $4,794-$8,723 (low $3,791, high $28,146). By quantity: 15 windows $7,191-$13,084; 20 windows $9,589-$17,446; 25 windows $11,986-$21,807; 30 windows $14,383-$26,169. Labor per window: 1-4 windows $94-$172; 5-9 windows $91-$165; 10-19 windows $87-$159; 20+ windows $84-$152. By frame material installed: vinyl $379-$690, aluminum $383-$696, fiberglass $540-$983, wood $616-$1,121, steel $1,428-$2,598. Energy add-ons installed: Low-E coating $629-$1,144, spectrally selective coating $486-$884, argon filled $802-$1,459, krypton filled $962-$1,751. Energy-efficient double-pane windows can save 20 to 30 percent on annual energy bills for up to 20 years.
- Fixr — National average range $300-$880 per window installed; most common cost $375 for a standard 30x36 double-pane window; single-pane replacement around $200. By pane type: single-pane $150-$400, double-pane $150-$600, triple-pane $400-$950. By size (double-pane, material only): 24x36 $130-$180, 30x36 $160-$270, 36x42 $320-$420, 46x54 $650-$810. Labor adds $50-$125. Glass type (material only): tempered $180-$700, laminated $275-$625, Low-E coating $350-$840, argon gas $375-$850, krypton gas $525-$1,190. Energy-efficient upgrades can save the average family $125 to $340 a year.
- Bob Vila — National average $281; overall range $180 to $411 (possible extremes $100-$700). Cost per square foot $3-$12 general, double-pane glass $6-$12 per square foot. Double-pane windows $150 to $600; argon gas-filled $375 to $850; krypton gas-filled $525 to $1,190. By glass type: single-pane $150-$400, laminated $275-$625, Low-E $350-$840, frosted $350-$800, tempered $180-$700, triple-pane $400-$950. Labor $50 to $75 per hour (45-60 minutes per pane); full glass replacement with labor $300-$880. Full window replacement averages $750 per window, versus replacing just the glass, which is more budget-friendly.
- This Old House — National average $375 per window installed; overall range $300-$880 per window installed. By size: 24x36 $130-$180 (avg $155), 30x36 $160-$270 (avg $215), 36x42 $320-$420 (avg $370), 46x54 $650-$810 (avg $730). By pane count: single-pane $150-$400 (avg $275), double-pane $150-$600 (avg $375), triple-pane $400-$950 (avg $675). Specialty glass: argon-filled $375-$850 (avg $613), Low-E $350-$840 (avg $595), krypton-filled $525-$1,190 (avg $858), tempered $180-$700 (avg $440). Labor $50-$125 per hour for glazing and window repair work.
- This Old House — Average cost per window $477 (typical range $395-$631; broader survey range $232-$740). By price tier: budget $232-$500 (avg $310), mid-range $501-$1,000 (avg $751), premium $1,001-$1,300 (avg $1,151), custom $1,300-$1,500 (avg $1,400). By pane type: single-pane $442, double-pane $490, triple-pane $661. By frame material: aluminum $448, fiberglass $491, vinyl $527, composite $529, wood $567. Window removal $55-$65 per hour; rotted frame repair $250-$800.
Two figures anchor the headline range. HomeAdvisor's double-pane-window page reports a $1,000 average per window installed with a typical range of $300-$2,100 (outliers extend to $150-$7,000) — used here as the headline because it speaks directly to full double-pane window replacement rather than glass alone. Fixr's double-pane page reports a $6,700 average for a 10-window whole-house project ($4,794-$8,723, with lows/highs of $3,791-$28,146), implying roughly $479-$872 per window on bulk jobs — lower than HomeAdvisor's single-window average but overlapping its range, consistent with per-window pricing dropping on larger jobs. Fixr and This Old House separately publish nearly identical figures for glass-only replacement inside an existing double-pane frame: $150-$600, averaging $375 for a standard 30x36-inch window. Bob Vila's broader window-glass-replacement figure (average $281, range $180-$411) reads lower still because it blends in cheaper single-pane jobs alongside double-pane ones. national_average_usd, range_low_usd, and range_high_usd are set to HomeAdvisor's full double-pane-window figures; the by_type table separates glass-only IGU swaps, full-unit replacement, and glass-package upgrades (Low-E, argon, krypton) so both replacement paths are covered, with triple-pane included as a comparison point. project_low_usd/project_high_usd reflect Fixr's 10-window whole-house range. Figures are installed cost (materials + labor) unless noted as material-only.