Window pricing gets quoted per-opening more than almost any other exterior job, and that's exactly where estimates go wrong — a "$600 window" means something different depending on frame material, glass package, and whether the crew is doing an insert replacement or tearing down to the studs. Here's what's actually in the number.
Pricing by window, installed
- Vinyl, insert replacement — $400–$900/window. The default for a straightforward swap: same size, same opening, new window set into the existing frame. Fastest install, least disruption to interior and exterior trim.
- Vinyl, full-frame replacement — $700–$1,300/window. Removes the old frame down to the rough opening — necessary when the existing frame is rotted, out of square, or the opening size is changing.
- Fiberglass — $700–$1,400/window. Holds paint better than vinyl, doesn't expand and contract as much with temperature, and has become the mid-tier standard on remodels where vinyl looks cheap next to the rest of the house.
- Wood or wood-clad — $1,000–$2,200/window. The look most additions and historic-district jobs require; clad exteriors (aluminum or vinyl cladding over a wood interior) cut the maintenance downside but not the price.
- Aluminum — $600–$1,200/window. Common in warmer climates and on modern-style builds; narrower sightlines than vinyl but a weaker thermal performer unless it's a thermally-broken profile.
- Casement, awning, and specialty shapes — add $150–$400 over a comparable double-hung, plus more for true custom shapes (arched, trapezoid) that can't come off a standard size chart.
For a typical whole-house job — 15 to 20 windows on an average single-family home — that puts a vinyl insert replacement around $8,000–$16,000 and a full-frame wood-clad job at $18,000–$35,000+, before any of the add-ons below.
What changes the price within a category
Insert vs. full-frame. This is the single biggest swing in a window estimate and the one most likely to get glossed over in a quick phone quote. Insert (also called "pocket") replacement reuses the existing frame and exterior trim — cheaper, faster, less mess, but it doesn't fix a rotted sill or out-of-square opening, and it slightly shrinks the glass area since the new frame nests inside the old one. Full-frame replacement tears out to the rough opening, which costs more but is the only way to actually correct water damage, address air sealing at the header, or change window size.
Glass package. Standard double-pane low-E is the baseline in most of the pricing above. Triple-pane adds roughly $100–$250/window and shows up mainly in cold climates where the energy math pencils out. Tempered glass (required by code near doors, stairs, and low sills) and impact-rated or hurricane glass in coastal jurisdictions both add cost per opening, not per job — worth flagging on the specific windows that need it rather than pricing the whole house at the highest tier.
Header and structural condition. Once trim comes off on a full-frame job, some percentage of houses reveal a rotted sill, a header that isn't sized correctly for the opening, or water damage that traveled into the wall cavity — the same "can't quote until it's open" problem that shows up on siding and roofing jobs, and it belongs in the estimate as a contingency line rather than a surprise change order.
Story height and access. Second-floor windows need staging or careful ladder work, especially on full-frame jobs where the old unit has to come out in one piece. That's a labor multiplier the per-window material price doesn't capture.
Grid pattern and hardware. Simulated divided lites, between-glass grids, and upgraded locking hardware are usually priced as options on top of the base unit — easy to underquote if the client picked a fancier grid pattern than the base price assumed.
The line items people miss
- Interior and exterior trim. Full-frame jobs typically require new trim on both sides, since the old trim rarely survives removal intact — paint-grade trim is a modest add, stain-grade or custom profiles are not.
- Exterior capping. Aluminum coil stock capping over exterior wood trim is a common add that protects the new trim from weather without a paint job — a per-window material and labor cost that's easy to leave off a rough estimate.
- Disposal. Old windows, especially glass units, need proper disposal — a dumpster or per-unit haul-away fee that adds up fast on a 15-20 window job.
- Interior paint touch-up. New trim or disturbed drywall around the opening usually needs paint — often assumed by the homeowner to be "included" when it isn't.
- Permits. Many jurisdictions require a permit for window replacement, particularly for full-frame work or when egress size is changing in a bedroom. Cheap relative to the job, but a missed permit turns into a stop-work order if an inspector catches it later.
DIY vs. hire
Insert replacement on a single, easily accessible window is genuinely within reach for a handy homeowner — it's closer to a large appliance install than structural carpentry. Full-frame replacement is a different job: getting flashing and air sealing right at the header and sill is what keeps water and air out of the wall for the next 20 years, and that's not forgiving of a first attempt. Multi-window and whole-house jobs also benefit from a crew's speed — a homeowner doing one window a weekend leaves a house with mismatched openings, unsealed cavities, and no HVAC efficiency for a season or more.
Structuring the estimate
A window estimate holds together best in three pieces: materials (windows by size and type, trim, capping, hardware upgrades), labor (removal, framing repair as its own contingency line on full-frame jobs, installation, trim), and a miscellaneous section for permits, disposal, and paint touch-up. Keeping framing repair separate from the base install price is what keeps a window quote honest once the old units are actually out and the openings are exposed.
JobPencil's builder handles that structure directly, with materials priced by quantity, labor broken out by task, and a miscellaneous section built for exactly this kind of contingency cost. Build a window replacement estimate free, no account required.