CostGuideHQ

Casement Window Cost: $150–$2,400 (Average $815) in 2026

Author: CostGuideHQ Editorial·✓ Fact-checked·Updated July 2026·7 min read·6 sources·US national averages, USD
Quick answerQuick answer: Casement windows cost $150 to $2,400 installed, averaging around $815 per window. Vinyl is cheapest; wood and fiberglass cost the most. Size, single- vs. double-frame design, crank hardware quality, and egress sizing all move the price, and larger or premium units can run well past $2,000.
  • A typical casement window costs $150 to $2,400 installed, averaging around $815 (Angi).
  • Vinyl is the cheapest frame material at $300 to $1,000 installed; wood and fiberglass run highest at $600 to $2,000 and $700 to $2,000 (Fixr).
  • Double-frame (French) casement windows cost roughly double a single-frame unit — $725 to $950 versus $350 to $550 installed (HomeGuide).
  • Egress-rated casement windows, sized to meet emergency-exit code, cost significantly more: $600 to $3,750 depending on the source (Angi, HomeGuide, Fixr).

How much does casement window cost?

National average
$815
per window
Typical range
$150–$2,400
Most projects
High end
$2,400+
Premium / complex
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Cost by material / type

TypeLowHigh
vinyl$300$1,000
aluminum$475$1,100
wood$600$2,000
composite$650$1,800
fiberglass$700$2,000
Estimate your cost
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Rough estimate only — get local quotes for exact pricing.

What affects the cost?

  • Frame material — vinyl installs cheapest at $300-$1,000 per window, aluminum runs $475-$1,100, composite $650-$1,800, and wood and fiberglass top the list at $600-$2,000 and $700-$2,000 (Fixr)
  • Window size — a small 24x36 in. casement runs about $400-$900 installed while a larger 36x60 in. unit runs $600-$1,200+ (HomeGuide); Angi's size table shows the same pattern, from $260-$360 at 24x36 in. up to $335-$630 at 36x60 in.
  • Single- vs. double-frame design — a single-frame casement costs $350-$550 installed, while a double-frame (French) casement, with two sashes side by side, costs $725-$950 (HomeGuide); Fixr shows a similar jump, $225-$550 single-frame versus $450-$950 double-frame
  • Crank hardware quality — casement windows rely on a crank-and-hinge mechanism to open, and Angi notes they "require high-quality hardware, which increases costs" compared with simpler slider or sash windows; replacing that hardware alone later runs $75-$200 (Angi)
  • Egress sizing — a casement window built and placed to meet emergency-exit code costs substantially more than a standard unit: $600-$2,300 (Angi), $750-$3,750 (HomeGuide), or $700-$3,700 (Fixr)
  • Number of glass panes — double-pane costs more than single-pane, and triple-pane costs the most: Angi cites $150-$400 single-pane versus $400-$950 triple-pane; HomeGuide cites $250-$900 single-pane versus $400-$1,500 triple-pane
  • Installation labor — labor runs $100-$500 per window depending on the source (HomeGuide $100-$500; Angi $100-$300 plus about $60 to remove and dispose of the old window; This Old House $150-$300 plus $60 removal; Fixr $80-$480, roughly 20%-40% of the total)
  • Brand — premium brands cost far more than budget lines: Marvin runs $1,000-$2,500 and Pella $500-$3,000, compared with Milgard at $250-$1,100 or Window World at $300-$1,000 (HomeGuide)

How much does a casement window cost?

A casement window costs $150 to $2,400 per window installed, averaging around $815 nationally (Angi) — generally more than a basic window replacement or standard window installation, since the crank-and-hinge hardware costs more to build and fit than a simple sliding sash. That average sits inside a tighter band that two other sources agree on: Fixr puts the typical casement window at $400 to $1,200, and HomeGuide reports the same $400 to $1,200 range for a standard installed unit. The $150 low end shows up in HomeAdvisor’s and Bob Vila’s figures for a small, budget vinyl casement, while the $2,400 high end, cited by both Fixr and This Old House, covers large, premium-material, or fully custom units. One source, This Old House, separately states a much higher $1,461 average — well above its own by-size and by-material tables, which top out around $865 — so treat that headline figure as reflecting a larger or more heavily upgraded project rather than a typical single-window replacement.

What affects the price of a casement window?

Casement windows are priced by material, size, design, and hardware:

  • Frame material. Vinyl installs cheapest at $300 to $1,000 per window; aluminum runs $475 to $1,100; composite runs $650 to $1,800; wood and fiberglass top the list at $600 to $2,000 and $700 to $2,000 (Fixr). Wood costs more for a reason beyond looks: “If it is a historic home, then you need to maintain the aesthetics of the home,” says Wayne Owczarzac, owner of Mr. Handyman in Wheaton, Illinois (Bob Vila).
  • Window size. A small 24x36 in. casement runs about $400 to $900 installed, while a larger 36x60 in. unit runs $600 to $1,200 or more (HomeGuide).
  • Single- vs. double-frame design. A single-frame casement costs $350 to $550 installed. A double-frame, or French, casement — two sashes set side by side with no center post — costs $725 to $950 (HomeGuide).
  • Crank hardware. Casement windows open on a crank-and-hinge mechanism rather than a simple sliding sash, which needs higher-quality hardware than other window styles and adds to the cost (Angi).
  • Number of glass panes. Triple-pane costs more than double, which costs more than single: Angi cites $150 to $400 for single-pane versus $400 to $950 for triple-pane.
  • Labor. Installation labor runs $100 to $500 per window, plus about $60 to remove and dispose of the old window (Angi, This Old House).
  • Brand. Premium brands like Marvin ($1,000–$2,500) and Pella ($500–$3,000) cost far more than budget lines like Milgard ($250–$1,100) or Window World ($300–$1,000) (HomeGuide).

How much more do egress or double-frame casement windows cost?

Egress casement windows — sized and placed to meet emergency-exit code, most often in a basement or bedroom — cost substantially more than a standard casement, and follow the same code-driven sizing rules covered in our egress window cost guide. Angi puts egress casements at $600 to $2,300, HomeGuide at $750 to $3,750, and Fixr at $700 to $3,700, all well above a typical single-frame unit’s $225 to $550 range (Fixr). The added cost reflects the larger glass and frame needed to meet minimum opening requirements, plus more substantial hardware to support the bigger sash. Double-frame (French) casements cost more for a different reason: you’re buying two window units in one frame. HomeGuide prices a double-frame casement at $725 to $950 versus $350 to $550 for a single-frame version, and Fixr shows the same roughly 2x jump ($450–$950 versus $225–$550). Picture windows flanked by casement sashes on either side cost more still — $600 to $1,300 (Fixr) to $700 to $1,300 (HomeGuide) — since that configuration bundles three window units into one opening.

How to lower your casement window cost

  • Choose vinyl over wood or fiberglass unless you need the look or performance. Vinyl installs for $300 to $1,000 per window versus $600 to $2,000 for wood or $700 to $2,000 for fiberglass (Fixr).
  • Stick with single-frame casements where ventilation needs allow it. A single-frame unit runs $350 to $550 installed versus $725 to $950 for a double-frame (French) casement (HomeGuide).
  • Use standard sizes. Common sizes like 24x36 in. run $400 to $900 installed, well under the $600-plus cost of a 36x60 in. unit (HomeGuide).
  • Pick a mid-tier or budget brand if the window isn’t a focal point. Milgard ($250–$1,100) and Window World ($300–$1,000) cost a fraction of Marvin ($1,000–$2,500) or Pella ($500–$3,000) (HomeGuide).
  • Only spec egress sizing where code requires it — a basement bedroom, for instance. Non-egress casements avoid the $600-plus premium that egress-rated units carry (Angi, HomeGuide, Fixr).
  • Get multiple quotes, since labor alone ranges from $100 to $500 per window depending on the installer (HomeGuide, Angi, This Old House).

Prices vary by region, window count, and how much site prep the install needs, so treat these figures as a planning budget. Get two or three local quotes, and confirm whether old-window removal, permits, and any wall-opening work are included before committing to a final number.

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Frequently asked questions

How much does it cost to replace a casement window?
Most homeowners pay $150 to $2,400 per window, averaging around $815 (Angi). A more typical, non-custom install lands in a tighter band of $400 to $1,200 (Fixr, HomeGuide).
What's the cheapest frame material for a casement window?
Vinyl is the least expensive option, installing for $300 to $1,000 per window (Fixr). Aluminum comes in close behind at $475 to $1,100.
How much more does a double casement (French) window cost than a single one?
A single-frame casement runs $350 to $550 installed, while a double-frame (French) casement — two sashes side by side with no center post — costs $725 to $950 (HomeGuide). Fixr shows the same pattern: $225 to $550 single-frame versus $450 to $950 double-frame.
How much does an egress casement window cost?
Egress casements, built and positioned to meet emergency-exit code, cost $600 to $2,300 (Angi), $750 to $3,750 (HomeGuide), or $700 to $3,700 (Fixr) — well above a standard, non-egress casement window.
Does the casement window price include installation labor?
Most quoted ranges do. Labor alone runs $100 to $500 per window depending on the source — HomeGuide cites $100 to $500, Angi $100 to $300 plus about $60 to remove and dispose of the old window, and This Old House $150 to $300 plus that same $60 removal fee.
Does the crank hardware add much to the cost?
Yes. Casement windows open on a crank-and-hinge mechanism instead of a simple sliding sash, and that mechanism needs higher-quality hardware than other window styles use, which pushes the price up (Angi). Replacing that hardware later, on its own, runs $75 to $200 (Angi).
How much do premium casement window brands cost compared to budget brands?
Marvin runs $1,000 to $2,500 and Pella $500 to $3,000, compared with budget lines like Milgard at $250 to $1,100 or Window World at $300 to $1,000 (HomeGuide).
Why do casement window price quotes vary so much?
Sources define "average" differently. Fixr and HomeGuide both center a standard casement around $400 to $1,200, and Angi's stated average of $815 falls in that band. This Old House separately reports a much higher $1,461 average, likely because that figure blends in larger or fully custom installs rather than a typical single window.

Sources

Figures synthesized and cross-checked across these sources (retrieved 2026-07-28):

  • Angi — Replacing a casement window costs an average of $815, ranging from $150 to $2,300; normal range $260 to $950. By size (installed): 24x36 in $260-$360, 24x48 in $350-$515, 24x60 in $420-$450, 30x36 in $275-$400, 30x38 in $215-$470, 30x60 in $460-$480, 36x60 in $335-$630. By material (materials only): wood $260-$2,000, vinyl $200-$780, aluminum $200-$1,180, fiberglass $535-$1,575, composite $350-$1,450. By panes: single $150-$400, double $150-$600, triple $400-$950. By type: single casement $200-$450, double (French) casement $450-$950, push-out $350-$950, top-hinged $150-$1,000, cottage-style $150-$1,000, flanker $600-$1,100, egress casement $600-$2,300. By brand: Pella $475-$1,800, Andersen $425-$1,600, Jeld-Wen $250-$1,100, Simonton $200-$1,300. Labor $100-$300 per window plus about $60 to remove and dispose of the old window. Permits about $50; enlarging a window opening $800-$5,000, cutting a new wall opening an additional $1,000-$5,000. Hardware replacement $75-$200; seal repair $200-$600.
  • Fixr — National average range $400-$1,200 per window; full range $200-$2,400. Labor $80-$480 per window (20%-40% of total cost). By frame material: vinyl $300-$1,000, aluminum $475-$1,100, wood $600-$2,000, composite $650-$1,800, fiberglass $700-$2,000. By window type: single-frame $225-$550, double-frame $450-$950, picture with flankers $600-$1,300, egress $700-$3,700. By glass type: single-pane $200-$900, double-pane $250-$1,100, triple-pane $500-$1,500+. By size (vinyl frame, double-pane): 24x36 in $290-$480 up to 36x60 in $720-$1,200. Permits $50-$250; new installation (vs. replacement) adds $1,000-$2,000.
  • This Old House — Average $1,461 per window, typically ranging from $400 to $2,400. By size (average): 24x36 in $262-$354 (avg $308), 24x48 in $350-$504 (avg $427), 24x60 in $420-$434 (avg $427), 30x36 in $275-$393 (avg $334), 30x38 in $219-$465 (avg $342), 30x60 in $459-$480 (avg $470), 36x60 in $337-$626 (avg $482). By frame material: vinyl $200-$750 (avg $475), wood $290-$2,000 (avg $1,145), aluminum $300-$950 (avg $625), composite $340-$1,180 (avg $760), fiberglass $535-$1,575 (avg $1,055). By window type: single-frame $224-$370 (avg $297), double-frame/French $445-$585 (avg $515), picture with flankers $600-$800 (avg $700), egress $430-$1,300 (avg $865). Labor $150-$300 per window plus $60 to remove and dispose of the existing window.
  • HomeAdvisor — Casement windows run from $150 to $1,000 each. By frame material (all window types): aluminum $75-$400, vinyl $100-$900, wood $150-$1,300, composite $300-$1,200, fiberglass $500-$1,500.
  • HomeGuide — Casement windows cost $400 to $1,200 per window installed on average; the window unit alone runs $300-$700, with $100-$500 installation labor. By size (installed): 24x36 in $400-$900, 24x48 in $450-$1,000, 24x60 in $500-$950, 30x36 in $375-$900, 30x60 in $550-$1,000, 36x60 in $600-$1,200+. By type: single-frame $350-$550, double-frame (French) $725-$950, egress casement $750-$3,750, picture window with casement flankers $700-$1,300. By frame material (materials only): vinyl $200-$750, aluminum $275-$1,000, wood $300-$2,000, composite $350-$1,200, fiberglass $500-$1,500. By glass type: single pane $250-$900, double-pane $300-$1,100, triple-pane $400-$1,500, Low-E coating $350-$1,300, argon-filled $475-$1,350, krypton-filled $625-$1,700. By brand: Andersen $400-$2,000, JELD-WEN $400-$2,000, Marvin $1,000-$2,500, Milgard $250-$1,100, Pella $500-$3,000, Window World $300-$1,000. Weather stripping $5-$10 per window.
  • Bob Vila — Casement windows (materials only) cost $150 to $1,000, cited within a broader window-replacement guide reporting a $280 national average per window and $180-$409 typical range across all window types. Labor runs $55-$65 per hour or $100-$300 per window.

Sources cluster around $400-$1,200 per window installed for a standard casement (Fixr's national average range; HomeGuide's stated average), and Angi's explicit stated average of $815 (range $150-$2,300, normal range $260-$950) sits inside that band, so it anchors national_average_usd here. HomeAdvisor and Bob Vila both give a lower, materials-leaning range of $150-$1,000, which sets the published low end ($150) alongside Angi's own low-end figure. The published high end ($2,400) comes from Fixr's and This Old House's stated upper bound for a large, premium-material, or egress-sized unit. This Old House separately states a $1,461 average per window, well above every other source and even above its own by-size and by-material tables (which average $297-$865) — that figure looks like it folds in larger or fully custom installs rather than a typical single casement, so it isn't used to anchor the published range. by_type figures use Fixr's installed (materials plus labor) breakdown by frame material, which sits close to HomeGuide's and Angi's casement-specific material tables (those are stated as materials-only, so naturally a bit lower). Figures generally include the window unit and standard installation labor; removing and disposing of the old window (about $60, Angi/This Old House), permits (about $50, Angi), and cutting a new or enlarged wall opening ($800-$5,000, Angi) are commonly quoted as separate line items.