Double casement window prices typically range from $700 to $2,800 per installed window, with many standard-size replacements averaging about $1,450. The final quote depends on frame material, glass efficiency, opening size, labor, and whether the existing frame can remain or the full window opening needs repair.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Window unit only | $350 | $850 | $1,800 | Standard vinyl through custom wood |
| Installed replacement | $700 | $1,450 | $2,800 | Per window, including ordinary removal |
| Large or custom unit installed | $1,500 | $2,600 | $4,500+ | Oversized, specialty glass, or difficult access |
| Installation labor | $250 | $500 | $1,000 | Per opening; repairs can add charges |
Double Casement Window Prices by Size and Material
A double casement window has two side-hinged sash panels that open outward. For a common replacement unit around 48 by 48 inches, the window itself often costs $500-$1,200 for vinyl, $800-$1,700 for fiberglass, and $1,000-$2,200 for wood. Installed totals are higher because they include removal, fitting, sealing, trim work, and disposal.
For a standard-size replacement with ordinary access, budgeting $1,000-$1,900 per window is a practical starting point. A smaller 36-by-48-inch vinyl unit may land near $700-$1,300 installed, while a wide 72-by-60-inch unit can reach $1,800-$3,500 or more. Custom dimensions, divided-light patterns, and premium finishes raise the unit price.
| Configuration | Unit price | Installed price | Typical scope |
|---|---|---|---|
| Small vinyl, about 36 × 48 in. | $350-$700 | $700-$1,300 | Basic double-pane replacement |
| Standard vinyl, about 48 × 48 in. | $500-$1,100 | $1,000-$1,900 | Common opening, standard trim |
| Standard fiberglass, about 48 × 48 in. | $800-$1,700 | $1,300-$2,500 | Stronger frame, upgraded glass often available |
| Large wood, about 72 × 60 in. | $1,400-$2,800 | $2,200-$4,500 | Custom finish or extensive trim possible |
Assumptions: U.S. midmarket pricing, standard double-pane glass, replacement in an existing opening, and no major framing damage.
What a Two-Sash Quote Includes for the Opening
Two operable sash panels require hardware on both sides, and the quote should identify whether the listed price covers the complete frame or only the sash. Most replacement quotes include a factory-assembled unit, standard locks and hinges, installation, exterior sealing, and basic interior or exterior trim adjustments. Confirm whether screens are included; some manufacturers price insect screens separately.
A useful quote separates the window unit from labor and opening repairs instead of presenting one unexplained total. For a typical replacement, the window and hardware may account for $500-$1,400, labor for $250-$700, and removal, disposal, and sealing for $75-$250. Interior casing replacement or exterior trim rebuilding can add $100-$600, depending on materials and finish work.
| Quote component | Typical price | What changes the charge |
|---|---|---|
| Window and hardware | $500-$1,400 per unit | Frame, size, glass package, screens |
| Installation labor | $250-$700 per opening | Access, crew time, installation method |
| Removal and disposal | $75-$250 per opening | Old frame condition and disposal fees |
| Flashing and sealing | $50-$200 per opening | Waterproofing details and wall condition |
| Trim or opening repairs | $100-$600 per opening | Rot, damaged casing, finish carpentry |
Ask whether the contractor measures the opening, supplies the window, and warrants both the product and installation. A low bid may exclude painting, concealed rot, new casing, or lead-safe work in older homes. Clarifying exclusions before signing makes estimates easier to compare.
How Frame Material and Glass Options Change the Price
Vinyl is usually the lowest-cost frame choice and needs little routine upkeep. Fiberglass typically costs more but resists expansion and contraction and can support narrower sightlines. Wood has a higher purchase and finishing cost, although it may suit historic homes or projects that require a particular interior appearance. A wood-clad unit may combine a wood interior with a weather-resistant exterior covering.
Compared with basic vinyl, upgrading to fiberglass can add roughly $300-$900 per window, while premium wood can add $500-$1,500 or more. These are broad installed differences; size and manufacturer can shift them substantially.
Glass options also affect the quote. Standard double-pane glass is commonly included in baseline pricing, while low-emissivity coatings, argon gas, laminated glass, or triple-pane construction can add about $100-$500 per window. In cold climates, a lower U-factor may help limit heat loss; in sunny regions, solar heat-gain performance may matter more. Tempered or laminated safety glass can be required by location or building code and may add $100-$350 per unit.
Grilles, custom colors, obscure glass, and special hardware commonly add $50-$400 per window. Ask for the exact glass specifications, not simply “energy efficient,” and compare U-factor and solar heat-gain coefficient across bids. A higher-cost glass package is not automatically worthwhile if it does not address the home’s climate or exposure.
Why Opening Size and Wall Repairs Can Raise the Quote
Window dimensions are among the strongest price drivers. A unit wider than about 60 inches or taller than 60 inches may require heavier glass, reinforced framing, or special ordering. A contractor may also charge more when the opening is not square, the sill is deteriorated, or the window is being resized. Structural changes can require carpentry, engineering, and permits beyond ordinary replacement labor.
Rot repair, water intrusion, and resizing can add several hundred dollars per opening and sometimes exceed $1,500. A small patch of sill damage may cost $150-$500 to repair, while rebuilding a larger section of framing or sheathing can run $500-$2,000. These costs are difficult to confirm until the old unit is removed, so a written estimate should state the contractor’s hourly rate or repair-price process for concealed damage.
Access is another variable. A ground-floor opening with a clear work area is generally less expensive than an upper-story window requiring ladder setup, scaffolding, or difficult material handling. Expect access charges of roughly $100-$500 per opening where extra equipment or safety precautions are needed. Moving furniture, removing window treatments, and keeping pets away from the work area can help avoid delays, but should not replace professional safety measures.
Double casement designs also need enough clearance for both sash panels to swing outward. If shrubs, walkways, storm doors, or exterior shutters block the swing, the contractor may suggest a different hinge arrangement or window style. Resolve that issue before ordering, because a custom unit or later change can add $200-$800 and extend the schedule.
How Long Does Double Casement Installation Take?
A straightforward replacement usually takes a two-person crew about 3-6 hours per opening, including removal, setting, fastening, sealing, and basic trim work. A retrofit that preserves the existing frame may be faster, while a full-frame installation with interior casing and exterior trim can take 5-8 hours. Multiple windows can reduce the average labor charge per opening when the crew can work continuously.
At a typical installed labor rate of $75-$125 per worker-hour, a two-person crew working 4 hours represents $600-$1,000 in gross labor time before contractor overhead and job-specific pricing. Contractors may quote labor as a flat per-window amount rather than list worker-hours, so the formula is useful as a comparison rather than a guaranteed invoice calculation.
Ordering is often the longest part of the project. Standard products may be available within days or a few weeks, while custom sizes, wood finishes, or specialty glass can take 4-10 weeks or longer. Installation itself is commonly scheduled for one day for a small group of windows, but repairs, weather, or inspection requirements can add time.
What Double Casement Windows Cost in Different U.S. Regions
Labor and operating costs make installed prices vary by location. As a broad comparison, quotes in major coastal cities may run 15%-30% above a national midmarket estimate. Smaller Midwestern and Southern markets may be 5%-15% below it, while remote areas can cost more because of delivery distance and limited contractor availability.
For a standard $1,450 installed window, regional differences could mean roughly $1,000-$1,250 in a lower-cost market or $1,650-$1,900 in a high-cost metro. These percentages are planning ranges, not fixed regional tariffs. Local wage levels, building age, contractor demand, and the availability of qualified installers can matter more than the state average.
Climate can influence the product specification as well as labor. Cold-weather regions may favor better insulating glass and airtight installation, while hot, sunny locations may prioritize solar control. Coastal properties may need corrosion-resistant hardware or more durable exterior finishes. Those choices can add $100-$500 or more per unit, so compare quotes with the same glass, frame, and hardware specifications.
Urban jobs can carry higher parking, loading, or access charges, while rural projects may include a trip or delivery fee. Ask whether the contractor has a minimum service charge, especially for a single window. Getting bids from local firms using identical measurements and product details provides a more reliable comparison than applying a generic regional percentage alone.
Three Installed Quotes for Common Double Casement Sizes
The examples below show how scope changes a realistic quote. Each assumes ordinary replacement work and includes the window, installation, and basic removal. Local taxes, extensive repairs, and unusual access are excluded unless noted.
| Example | Specifications | Labor estimate | Installed total |
|---|---|---|---|
| Compact vinyl replacement | 36 × 48 in., double-pane, basic screen | 3-4 crew hours; $300-$500 | $850-$1,300 |
| Mid-size fiberglass upgrade | 48 × 48 in., low-E glass, standard trim | 4-5 crew hours; $450-$700 | $1,500-$2,300 |
| Large wood full-frame job | 72 × 60 in., custom finish, trim work | 6-8 crew hours; $700-$1,100 | $2,800-$4,500 |
The large wood example costs more mainly because of the larger custom unit and full-frame finish work, not simply because it has two sash panels. “Crew hours” means elapsed time for the crew; it does not equal the total labor hours billed. For instance, two workers on site for four hours represent eight worker-hours.
When comparing written bids, check the measured rough opening, brand and model, glass package, screen type, trim scope, disposal, and warranty. Two quotes for “a 48-inch double casement” may cover different products or installation methods. Request clarification for any price difference greater than a few hundred dollars per window.
Where Can Homeowners Cut the Replacement Bill?
Keeping the existing opening dimensions is one of the most effective ways to control cost. Resizing for a different look can trigger framing, siding, drywall, and permit expenses. If the frame is sound and the contractor confirms that a sash-only or insert replacement is appropriate, preserving it may save about $150-$600 per opening compared with full-frame work. It is not suitable when the frame is rotten, leaking, or poorly installed.
Choose the glass and finish that address the home’s actual exposure rather than paying for every available upgrade. Standard colors and common sizes are usually less expensive than custom finishes or unusual dimensions. Avoid adding grilles, specialty locks, or decorative glass unless they serve a practical or design purpose. Compare the cost of an upgrade across several windows before deciding; manufacturer pricing can vary by order size.
Scheduling several windows together can reduce repeated setup and travel charges. Depending on the contractor, a project of four or more openings may lower per-window labor by roughly $50-$150 compared with a one-window visit. This does not guarantee a discount, and a larger job total remains higher, but it can improve the unit economics when multiple windows already need replacement.
Get at least three itemized quotes based on the same specifications, and ask whether a contractor can offer a less expensive standard product with comparable warranty coverage. Avoid choosing solely by the lowest total if it excludes disposal, flashing, or finish work. A clear allowance for hidden damage is often more useful than an unrealistically low bid that may rise after removal.