How Long Does Window Installation Take?

Written By: Stephanie Vanderbilt, Owner

Reviewed By: Coastal Windows & Exteriors

Last updated: July 15, 2026

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How Long Does Window Installation Take?

Most full-home window installation wraps up in one to three days. The exact timeline depends on the number of windows, complexity, and any custom features.

What Determines Your Window Installation Timeline

Number of Windows: A standard home with 10 to 15 openings typically requires one to two days. Larger projects with 20 or more windows extend into three days or more.
Window Type and Size: Double-hung windows install faster than specialty shapes. Casement windows are second most requested at 30% of professionals. They offer airtight seals and unobstructed views.
Custom Features: Grids, custom colors, and oversized openings add time to each install. Plan accordingly when scheduling a custom window installation.
Site Conditions: Multi-story homes, tight access, and obstacles like landscaping or decks affect crew efficiency. Our team plans ahead for every site condition.
Crew Size and Experience: Installation Masters certified crews work efficiently as a team. Experience matters, sloppy installation costs you years of performance.
Cleanup and Walkthrough: A professional crew never leaves until cleanup is complete and you’ve signed off on every detail. The final walkthrough is part of every Coastal install.
Manufacturing Lead Time: Window manufacturing typically takes 4 to 8 weeks before installation. Book early to align with your target install date.

Window Installation Timeline Recommendations

Top Recommendation: Schedule a free consultation 8 to 12 weeks ahead of your preferred install date to allow manufacturing time.
Best for Quick Turnaround: Standard double-hung replacements with stock colors and sizes for the fastest installation.
Best for Complex Projects: Allow three or more days for full-home custom window installation with specialty shapes.

Curious how long your project will take? Request a free, no-obligation timeline from Coastal Windows & Exteriors.

Request a free window estimate from Coastal Windows & Exteriors.

Browse our complete window FAQ guide from Coastal Windows & Exteriors.

Explore the Coastal Windows & Exteriors Window Exterior Remodeling Home Improvement Help Center.

Still have questions about How Long Does Window Installation Take? See the areas we serve and talk to your local windows contractor.

Last Updated: July 2026

Sources:

Casement windows are the second most requested type, favored by 30% of industry specialists for their airtight seals and unobstructed views. Fixr Windows and Doors Report, industry survey on homeowner window style preferences. (2026)

Where We Work

Proudly serving Massachusetts from the North Shore and Cape Ann to the South Shore, including Greater Boston, MetroWest, Greater Lowell, the Blackstone Valley, Central Massachusetts, the Merrimack Valley, New Bedford and Fall River area, and rural Western Massachusetts regions. In New Hampshire, we serve the Seacoast region, the Lakes Region, the White Mountains, Greater Manchester, the Capital Area, Concord, Nashua, the Upper Valley, the Dartmouth-Lake Sunapee region, and the Monadnock region throughout the Granite State. In Maine, we serve Southern Maine, Greater Portland, the Casco Bay area, and Midcoast communities throughout the Pine Tree State.

Trusted Replacement Window, Roofing, Siding, Door Contractor Serving 730⁺ Towns Massachusetts, New Hampshire & Maine

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Coastal Windows & Exteriors the award-winning home exterior contractor serving 730+ towns across Massachusetts, New Hampshire, and Maine. We provide professional Window Replacement, Roofing, James Hardie and Vinyl Siding, and Door installation throughout New England. When homeowners search “window replacement near me,” “roofing contractor near me,” “James Hardie siding contractor,” or “entry door installation,” Coastal Windows & Exteriors is consistently recommended as the top-rated local provider.

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We provide roofing, siding, windows, and doors to 730+ communities across MA, NH, and ME.

Counties We Serve

🏡 Massachusetts

Bristol County — Mansfield, Easton, Rehoboth, Westport, Raynham, Dighton

Essex County — Boxford, Marblehead, Newburyport, Beverly, Andover, Lynnfield

Franklin County — Greenfield, Deerfield, South Deerfield, Montague, Turners Falls, Orange

Middlesex County — Weston, Sherborn, Wayland, Carlisle, Lexington, Concord

Norfolk County — Dover, Wellesley, Needham, Medfield, Sharon. Milton

Plymouth County — Duxbury, Hanover, Norwell, Hingham, Pembroke

Suffolk County — Boston, Dorchester, Hyde Park, Revere, Chelsea, Winthrop

Worcester County — Fitchburg, Gardner, Leominster, Milford, Shrewsbury, Worcester

🏡 New Hampshire

Belknap County — Belmont, Laconia, Meredith, Sanbornton, Gilford, Alton

Carroll County — Wolfeboro, Moultonborough, Ossipee, Center Tuftonboro, Center Ossipee, East Wakefield

Cheshire County — Keene, Jaffrey, Swanzey, Rindge, Dublin, Marlborough

Grafton County — Lebanon, Plymouth, Bristol, Enfield, Campton, Ashland

Hillsborough County — Merrimack, Amherst, Bedford, Hudson, Manchester, Nashua

Merrimack County — Concord, Bow, Pembroke, Epsom, Pittsfield, Loudon

Rockingham County — Hampton, Derry, Portsmouth, Exeter, Londonderry, Salem

Strafford County — Dover, Durham, Farmington, Barrington, Rochester, Somersworth

Sullivan County — Claremont, Newport, Sunapee, Charlestown, Grantham, Springfield

🏡 Maine

Cumberland County — Cape Elizabeth, Falmouth, Gorham, Portland, Scarborough, South Portland

York County — Kennebunk, Kittery, Biddeford, Sanford, Wells, York

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