Window Replacement Labor and Installation Cost Guide
Updated 2026-06-17
Window installation labor costs $100 to $300 per window for a standard pocket replacement on a double-hung window. Full-frame replacement, which involves removing and reinstalling trim, siding patches, and casing, runs $200 to $400 per window or more. Labor typically accounts for 35 to 50 percent of the total installed cost of a replacement window project.
Before requesting quotes, use the window cost calculator to estimate total project cost including labor for your window count and type. It takes about 30 seconds and gives you a number to test contractors against.
Labor rates by installation type
| Installation type | Labor cost per window | When it applies |
|---|---|---|
| Pocket (insert) replacement | $100 to $250 | Existing frame is sound and square |
| Full-frame replacement | $200 to $400 | Frame is rotted, warped, or non-standard size |
| Bay or bow window | $400 to $900 | Multi-unit structural installation |
| Skylight | $500 to $1,200 | Roof penetration, flashing required |
| Second-story or above | Add $50 to $150 | Scaffolding or ladder setup needed |
| Window over 60 inches wide or tall | Add $75 to $200 | Requires two-person lift |
How Is Labor Cost Calculated?
Installers price labor mainly off installation type: a pocket replacement (removing just the sash, leaving the frame) runs $100 to $250 per window, while full-frame work, tearing out down to the rough opening, runs $200 to $400 because it adds trim, siding, and casing labor. Window size and height add on top of that base rate. A unit over 60 inches needs a two-person lift, and anything on a second story or higher usually means scaffolding or ladder setup, both billed as line-item adders rather than folded into the base price.
How much does Home Depot charge per window to install?
Home Depot's installation program charges $100 to $300 per window in installation fees on top of the window purchase price, with the total typically running $250 to $700 per window. Independent licensed contractors often match or beat that range, especially on larger projects, and give you more control over scheduling and product selection. The main thing the Home Depot program offers is a single point of contact and a documented warranty process, which some homeowners find worth the trade-off. Get at least one independent quote before you decide.
What affects installer labor rates
- Geographic market. Contractors in New York City, San Francisco, and Boston charge 30 to 50 percent more than those in the South or Midwest for the same scope of work.
- Contractor type. Manufacturer-certified installers often charge a premium but may include extended labor warranties, which can matter if you plan to stay in the house.
- Project size. Larger jobs spread fixed costs over more windows, lowering the per-unit labor rate. A 15-window job typically runs 10 to 20 percent less per unit than a two-window job.
- Season and scheduling. Peak season (late spring through early fall) sees higher demand. Booking in February or March can improve availability and occasionally pricing.
- Trim and finish work. Some quotes include interior casing and exterior caulking; others do not. Confirm exactly what finish work is bundled before comparing numbers.
What the labor fee should cover
A complete installation labor fee should cover removal and disposal of the old unit, fitting and shimming the new window into the opening, insulating the gap around the frame, attaching interior and exterior stops and trim, and caulking the exterior perimeter. Ask your contractor whether each task is included or billed separately. Disposal of old frames and glass is the item most commonly left out of a quote, so confirm it before work starts.
DIY vs. professional installation
Homeowners with carpentry experience can complete a pocket replacement in a few hours per window, saving $100 to $300 in labor. The catch is that mistakes in shimming, insulating, or sealing cause air leaks, condensation, and water damage that cost considerably more to fix than the labor saved. Most window manufacturers also require professional installation to keep the warranty valid. Full-frame replacements, oversized windows, and any job touching structural framing should go to a licensed installer without exception. Cutting a new opening into a basement foundation wall is its own category of labor entirely; see basement egress window installation pricing for how concrete cutting and excavation change the math.
How to compare labor quotes fairly
Ask each contractor for a written scope that lists: number of windows, installation type (pocket vs. full-frame), whether trim and casing are included, who handles disposal, and what the labor warranty covers. Without itemized scopes, comparing three quotes is guesswork, because each contractor may be pricing a different level of work.
Get at least three quotes from licensed window installers in your area. Check licensing and insurance before signing anything, and ask for references from recent jobs of similar scale.
Do installers charge by the hour or by the window?
Most window contractors price standard replacements per window, not per hour. Hourly rates of $40 to $80 per installer come up for unusual or custom work where time is genuinely unpredictable. Per-window pricing gives you cost certainty on a routine project. If a contractor insists on hourly billing for what should be a standard replacement, ask for a not-to-exceed figure before work starts.
Bottom line
Window installation labor runs $100 to $400 per window depending on installation type, window size, and your local market. Pocket replacements cost less; full-frame jobs cost more. Get at least three written quotes that itemize labor separately from materials, and confirm that trim work, insulation, and disposal are all covered. Use the window calculator to estimate full project cost before you start calling contractors.
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FAQs
What percentage of the total cost is labor?
Labor usually makes up 35 to 50 percent of the installed price, with the rest going to the window unit itself.
Do installers charge extra for second-story windows?
Many add $50 to $150 per window for scaffolding or ladder work on upper floors, so ask about this before comparing bids.
Is DIY installation worth the labor savings?
It can save $100 to $300 per window, but mistakes in sealing or insulating often cost more to fix than the labor saved, and most manufacturers require professional installation to keep the warranty valid.