Casement Window Replacement Cost: 2026 Pricing by Material & Size
A casement window replacement costs $407 to $1,052 installed in 2026, depending on the frame material, size, and glass options. Casement windows are the second most popular residential window style after double-hung, and they offer some distinct advantages: superior air sealing, full-opening ventilation, and easy operation for hard-to-reach locations.
Casement windows are hinged on one side and swing outward using a crank mechanism. When closed, the sash presses tightly against the frame, creating a compression seal that is inherently tighter than the sliding seal on a double-hung window. This makes casements a strong choice for energy efficiency and for rooms where you want maximum airflow.
This guide covers casement window costs by material, size, and brand, with comparisons to double-hung so you can decide which style makes sense for each room. For a quick estimate, use our window replacement cost calculator.
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How this estimate is calculated
$407–$1,052 per window installed, from BLS wages and the FRED price index
Based on BLS, FRED & EIA data
Labor, weatherproofing and price escalation come from federal data. The base material cost does not — and we say so below rather than rounding it into the same sentence. Reference window: casement, retrofit install.
- Labor
- 2.5 man-hrs × $29/hr national carpenter wage (BLS OEWS, SOC 47-2031) × 2.84 contractor markup = $207
- Materials
- Vinyl frame + Low-E glass, escalated 5.8% since 2025 by the FRED producer price index. The base cost this escalates is not independently sourced — it is the largest single term in the estimate and the one we cannot yet cite. Retail listings for the products named in our tiers put a comparable unit at $284–$379, which brackets it. How we are trying to close that.
- Weatherproofing
- $20–$35 per opening — flashing tape, foam, backer rod and caulk, priced per opening rather than as a percentage of the window (DuPont GREAT STUFF)
- Installed cost
- $407–$1,052 per window installed · $4,070–$10,520 for a 10-window project (before bulk discount)
A casement carries a crank mechanism and a compression seal, so it takes longer to hang and adjust than a double-hung — 2.5 hours against 2.0 — and costs more in hardware.
Casement Window Cost by Frame Material
| Frame Material | Cost Per Window (Installed) | Durability | Energy Efficiency |
|---|---|---|---|
| Vinyl | $407 - $1,052 | 20–40 years | Good |
| Aluminum | $403 - $1,036 | 20–30 years | Poor |
| Fiberglass | $461 - $1,294 | 30–50 years | Excellent |
| Wood | $540 - $1,652 | 30–50+ years | Excellent |
| Composite | $425 - $1,133 | 25–40 years | Good |
| Wood-Clad | $488 - $1,417 | 30–50 years | Excellent |
Vinyl casement windows are the most popular choice, offering good performance at the lowest price point. For detailed vinyl pricing across all window styles, see our vinyl window replacement cost guide.
Fiberglass casements are worth considering if energy efficiency is a priority or if you live in a climate with extreme temperature swings. The frame material's dimensional stability keeps the compression seal tight for decades. Our vinyl vs fiberglass windows comparison breaks down the performance differences.
Casement Window Cost by Size
Casement windows come in a range of standard sizes. Larger casements cost more and may require heavier-duty hardware to support the weight of the sash.
| Size (Width x Height) | Vinyl (Installed) | Wood (Installed) | Notes |
|---|---|---|---|
| 18" x 36" | $290 - $525 | $337 - $735 | Small; bathrooms, accent windows |
| 24" x 48" | $311 - $622 | $374 - $904 | Standard size |
| 28" x 54" | $346 - $777 | $434 - $1,174 | Common residential size |
| 36" x 60" | $407 - $1,052 | $540 - $1,652 | Large; living rooms, bedrooms |
| 36" x 72" | $472 - $1,344 | $654 - $2,162 | Extra tall; high-ceiling rooms |
| Custom sizes | Quoted per opening | Quoted per opening | 6-12 week lead time |
Wide casement windows (over 36" wide) can become heavy and put strain on the hinge hardware. For openings wider than 36", many contractors recommend a pair of casement windows (French casement configuration) rather than a single wide unit. Two narrower sashes are lighter, easier to operate, and less prone to hinge wear.
Casement vs Double-Hung: Cost and Performance
Many homeowners choose between casement and double-hung for the same openings. Here is how they compare.
| Feature | Casement | Double-Hung |
|---|---|---|
| Cost (vinyl, installed) | $407 - $1,052 | $512 - $685 |
| Ventilation | Full opening (100% of window area) | Partial (50% maximum) |
| Air sealing | Excellent (compression seal) | Good (sliding seal) |
| Cleaning ease | Easy from inside (swing open fully) | Tilt-in sashes for cleaning |
| Obstruction risk | Sash swings outward (can interfere with walkways, decks) | No exterior obstruction |
| Hardware complexity | More complex (crank, hinge, locking points) | Simpler (balance system, locks) |
| Egress compliance | Easier to meet (full opening) | Harder to meet (limited opening size) |
| Wind resistance | Excellent when closed (wind presses sash tighter) | Good |
| Best locations | Bedrooms, kitchens, above counters, hard-to-reach spots | Most rooms, especially upper floors |
When to Choose Casement
- Above kitchen counters or sinks -- the crank operator is easy to reach without leaning over the counter
- Hard-to-reach locations -- casements open with a simple crank turn rather than requiring you to push a sash up
- Bedrooms that need egress compliance -- casements provide a larger clear opening relative to frame size
- Energy efficiency priority -- the compression seal provides tighter air sealing than double-hung windows
- Maximum ventilation -- the full-swing opening catches breezes and directs them into the room
When to Choose Double-Hung
- Windows facing walkways, decks, or patios -- the outward swing of a casement can obstruct outdoor areas
- Upper floors -- double-hung tilt-in cleaning is safer and easier than reaching outward-swinging casements from the second story
- Traditional home aesthetics -- double-hung has a more classic appearance that suits colonial, Cape Cod, and traditional architecture
- Budget-sensitive projects -- double-hung windows are slightly cheaper on average and have simpler hardware
For detailed double-hung pricing, see our double-hung window cost guide.
Casement Window Glass Options
| Glass Configuration | Additional Cost | Energy Impact | Best For |
|---|---|---|---|
| Double-pane (standard) | Included | Baseline | Budget projects, mild climates |
| Double-pane + Low-E + Argon | +$54 - $242 | 25-35% better than standard | Most climates (recommended) |
| Triple-pane + Low-E + Argon | +$144 - $647 | 40-50% better than standard | Cold climates, noise reduction |
| Laminated/Impact | Not in our model — quoted separately | Good insulation + security | Hurricane zones, ground floor security |
Casement windows benefit especially from Low-E coating because their tight seal preserves the energy performance over time. A casement window with Low-E glass and argon fill typically achieves a U-Factor of 0.22-0.28, meeting ENERGY STAR 7.0 requirements in most climate zones.
For more on energy performance and available incentives, see our energy efficient windows cost guide.
Casement Window Brands and Pricing
| Brand | Price (Casement) | Quality Tier | Notable Features |
|---|---|---|---|
| Andersen (100 Series) | Shelf $713–$899, median $854 (6 listings) | Premium | Composite frame, trusted brand |
| Andersen (400 Series) | Shelf $438–$799, median $588 (4 listings) | Premium+ | Wood interior, exterior cladding |
| JELD-WEN (V-4500) | Shelf $398–$1,337, median $577 (9 listings) | Mid-Range | Wide availability, good customization |
| Milgard | Not published — priced by dealer quote | Budget-Mid | Solid warranty, West Coast distribution |
| Simonton | Not published — priced by dealer quote | Mid-Premium | Strong energy ratings |
| Pella (250 Series) | Not published — priced by dealer quote | Premium | Integrated screens, smooth operator |
| Marvin (Elevate) | Not published — priced by dealer quote | Luxury | Fiberglass exterior, wood interior |
“Shelf” is the retail price of the window alone at Home Depot or Lowe’s — not installed — from our Google Shopping census, checked 2026-09-08. Where no company publishes a price we say so rather than estimate one. Our model adds $227 to $242 to install a casement by insert, or about $289 in labor alone for a full-frame job.
Casement windows carry more hardware than a double-hung (crank mechanism, multi-point locking system, heavy-duty hinges), but the shelf census shows no consistent casement premium. Andersen's 400 Series medians were $588 casement, $717 double-hung. Listing sizes vary more than the hardware does, so compare quotes at the same opening size.
The Crank Mechanism: What You Should Know
The crank operator is the most distinctive feature of a casement window and the component most likely to need attention over the window's lifetime.
Types of Crank Operators
- Fold-down crank: The standard. A small handle that folds flat when not in use. Simple and reliable.
- Roto-gear crank: A geared mechanism that provides mechanical advantage for opening larger, heavier sashes. Common on premium brands.
- Concealed operator: Hidden inside the frame for a cleaner look. Found on high-end models.
Maintenance
Crank mechanisms require minimal maintenance but benefit from annual lubrication of the gears and hinges with silicone-based lubricant. A well-maintained crank operator lasts 20-30 years. If a crank fails, replacement hardware costs $50-$150 and can usually be installed as a DIY repair.
Screens
Casement windows use interior screens (placed on the inside of the window) rather than exterior screens. This is because the sash swings outward and would hit an exterior screen. Interior screens are typically retractable or removable, and they allow easy crank access.
Whole House Casement Window Costs
If you are replacing all windows with casements (common in contemporary and modern homes), here is the project-level pricing.
| Number of Windows | Vinyl | Fiberglass | Wood |
|---|---|---|---|
| 5 | $2,035 - $5,260 | $2,305 - $6,470 | $2,700 - $8,260 |
| 10 | $4,070 - $10,520 | $4,610 - $12,940 | $5,400 - $16,520 |
| 15 | $6,105 - $15,780 | $6,915 - $19,410 | $8,100 - $24,780 |
| 20 | $8,140 - $21,040 | $9,220 - $25,880 | $10,800 - $33,040 |
Includes standard professional installation, before any volume discount. Our calculator takes 10% off projects of 10 or more windows.
Most homes use a mix of window types rather than all casements. You might use casements in the kitchen and bedrooms, double-hung in hallways and living areas, a picture window in the main living space, and a bay window as a feature. For whole-house project pricing with mixed window types, see our whole house window replacement cost guide.
Installation Considerations
A casement takes a little longer to hang than a double-hung — the crank mechanism and compression seal need adjusting. Our model puts a retrofit casement at 2.5 man-hours, with labor costs of $207 per window, or $289 on a full-frame install.
Key installation points for casements:
- Clearance check: Make sure the sash has room to swing open fully without hitting exterior walls, shutters, or adjacent windows.
- Hinge side: Confirm which side is hinged before ordering. Casements are available in left-hinge and right-hinge configurations.
- Operator testing: Have the installer demonstrate the crank operation and ensure smooth, full-range movement before they leave.
- Screen fit: Verify the interior screen fits properly and is easy to remove for cleaning.
Frequently Asked Questions
Are casement windows more expensive than double-hung?
Do casement windows leak more than other types?
How long does a casement window crank mechanism last?
Can casement windows be used for egress?
Get Your Casement Window Estimate
Casement windows deliver excellent air sealing, full ventilation, and easy operation -- especially for hard-to-reach spots. For a personalized estimate on your casement window project, use our calculator below.
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