Local research · updated July 2026
Replacement Windows in Madison, Wisconsin
Madison wears its age unevenly. Just over half the city's homes — 51.6% — predate 1980, but the median build year is 1979, which makes this one of the more genuinely mixed-age markets in our sample: prewar bungalows and worker cottages crowding the isthmus and near-east side, then ring after ring of postwar and later subdivisions spreading out toward the Beltline. Whichever side of that line your house falls on, the climate is the same hard constant. Madison sits in IECC Zone 6A — cold and moist, one of the coldest markets we cover — with winter humidity rolling off Lakes Mendota and Monona that shows up as condensation and ice on any window that can't keep its interior surface warm.
Short answer
In Madison, a standard replacement window (double-hung, casement or slider) typically costs $545–$3,100 installed. Bay and bow windows run $2,725–$8,715+, and a sliding patio door $1,635–$5,445. Frame material and the glass package decide where a project lands in that range.
Planning ranges built from NREL and BLS cost data, localized to Madison with the BEA Regional Price Parity for Madison, WI (2024). How we estimate →
51.6%
of Madison homes were built before 1980, the era of single-pane and early aluminum windows
Source: U.S. Census Bureau, 2019–2023 ACS 5-Year Estimates
1979
median year built across Madison's 130,848 housing units
Source: U.S. Census Bureau, 2019–2023 ACS 5-Year Estimates
U ≤ 0.22
the ENERGY STAR v7.0 number that matters most in the Northern zone
Source: EPA ENERGY STAR v7.0
Window installers in Madison
Compare companies serving Madison. Request a free, no-obligation quote and we route it to the company or a vetted local installer.
| Company | Location | Request a quote |
|---|---|---|
 4.8 · 200,000+ reviews | Madison, WI | Get a quote → |
| 1Champion Replacement Windows of MadisonChampion | Madison, WI | Get matched → |
| 2Mad City RemodelingMad City Windows | Madison, WI | Get matched → |
| 3Mad City Windows & Baths of MadisonMad City Windows | Madison, WI | Get matched → |
| 4Pella Windows and Doors Showroom of Madison, WIPella | Madison, WI | Get matched → |
| 5Window World of MadisonWindow World | Madison, WI | Get matched → |
Renewal by Andersen of Janesville
4.8 · 200,000+ reviewsShowrooms in Madison & Janesville · serving the Madison metro
Full-service manufacturer and installer, transferable warranty, local crews. Why it's our Top Pick
Get a quote →Listings compiled from manufacturer dealer locators and public business records. Premier and Sponsored Partners pay for placement and are labeled as such; star ratings shown are reported by the partner, with the source and date beside them. See our advertising disclosure. Contacting a company shares your details with it (or a vetted local installer) so it can reach you about your project.
Are you a window company? Claim your listing to take quote requests from Madison homeowners directly.
What drives window decisions in Madison
- The stock is genuinely split. Isthmus and near-east neighborhoods — Marquette, Tenney-Lapham, the university-area doubles — are full of pre-1940 bungalows and cottages still carrying original wood double-hungs, while the postwar and newer rings often have builder-grade double-pane units now aging out of their seals. The right fix, and the right price, differs sharply between the two.
- Zone 6A makes low U-factor the dominant spec: in a Madison winter, heat retention matters far more than solar control, and triple-pane glass packages — which push U-factors below the usual double-pane range — are increasingly treated as standard rather than an upgrade on the cold side of a replacement.
- Winter humidity off Mendota and Monona, combined with hard freeze-thaw cycles, is tough on old single-pane sashes: fogged glass, ice at the sill, and interior condensation are among the most common triggers homeowners here cite for replacing rather than restoring.
- Several near-downtown neighborhoods sit inside locally designated historic districts — University Heights, Mansion Hill, Third Lake Ridge, First Settlement, and the Marquette Bungalows among them — where exterior window changes on visible elevations may require a Certificate of Appropriateness from the Madison Landmarks Commission before any work begins.
Replacement windows & doors by type in Madison
Local cost ranges and Northern-zone efficiency guidance for each window and door style, specific to Madison homes:
Ranges localized to Madison's cost level: national planning ranges shifted by the BEA Regional Price Parity for Madison, WI (97.3, U.S. = 100; 2024). How we estimate local costs →
Efficiency requirements for Madison's climate
Madison sits in the ENERGY STAR Northern zone (IECC zone 6A (cold, moist), Dane County). Under the v7.0 specification, qualifying windows need a U-factor of 0.22 or lower with a solar heat gain coefficient (SHGC) of at least 0.17. Heating-dominated climate: the window must hold heat in (very low U-factor) while still letting some free solar warmth through in winter (minimum SHGC). Equivalent-performance tradeoffs allow U-factors of 0.23–0.26 when paired with progressively higher solar gain.
Not sure what these numbers mean? Read our plain-English guide to U-factor and SHGC.
What replacement windows cost here
The mixed-age stock is the whole cost story in Madison. On a prewar isthmus bungalow, original wood openings are often out of square, rot-softened, or were never built to carry a modern insulated unit, and installers frequently push toward full-frame replacement over a cheaper insert — which raises the per-window price but is sometimes the only way to get a sound, weather-tight install. On a newer subdivision home with builder-grade double-panes, a simpler swap may be all that's warranted. Cold-climate glass adds up front too: low U-factor double-pane, and increasingly triple-pane, cost more but are where the heating-season savings live in Zone 6. Add a citywide permit requirement and, in the historic districts, a design-review step, and quotes vary widely house to house. Ask for itemized bids that separate the window unit from labor and any frame or trim repair.
For a breakdown by frame material and install type, see our full cost guide.
Rebates & incentives in Wisconsin
The federal window tax credit (25C) ended for projects placed in service after December 31, 2025. If your windows were installed in 2025, you can still claim it on your 2025 return — but for new projects there is no federal window credit. State and utility programs are now the main source of window incentives.
Wisconsin has been rolling out IRA Home Energy Rebate programs; whole-home efficiency retrofits can include windows within a modeled-savings project. Confirm current availability before promising rebate dollars.
- Focus on Energy (statewide). Focus on Energy is Wisconsin's statewide utility efficiency program; it incentivizes audits and weatherization, with windows typically part of a broader whole-home efficiency package. (Focus on Energy program pages)
Wisconsin enforces the statewide Uniform Dwelling Code (UDC); Milwaukee permits through the Department of Neighborhood Services. Zone 6 winters make low U-factor windows effectively essential for permitted replacements.
Replacement windows in nearby metros
Not in Madison proper? These nearby markets carry the same local research: housing-age data, climate-zone specs, and current rebate status for each city:
Madison window replacement FAQ
›Do I need a permit to replace windows in Madison?
Generally yes. Building permits in the City of Madison run through Building Inspection and the Development Services Center, with applications handled online through the city's Accela portal, and residential work is governed by the Wisconsin Uniform Dwelling Code. The scope matters: replacing a window within its existing opening is treated differently than enlarging or relocating an opening, which involves structural and egress considerations. Confirm your specific project with Building Inspection before work starts — a reputable installer will usually pull the permit as part of the job.
›What efficiency numbers should replacement windows hit in Madison?
Madison is in the ENERGY STAR Northern climate zone (IECC Zone 6A). The ENERGY STAR Version 7.0 Northern spec calls for a U-factor of 0.22 or lower and a solar heat gain coefficient of at least 0.17 — the SHGC floor is there because, in a heating-dominated climate, you actually want some free solar gain in winter. In practice a low U-factor is the number that counts here, and triple-pane units, which drop well below the double-pane range, are increasingly common on Madison replacements for exactly that reason. Ask to see the NFRC label on any unit you're quoted rather than taking a brochure claim on faith.
›Are there rebates or tax credits for windows in Wisconsin right now?
The federal 25C energy-efficient home improvement tax credit for windows expired on December 31, 2025, so it is no longer available for new projects. Be careful with claims about Focus on Energy, the statewide utility-funded efficiency program: it does not offer a standalone rebate just for swapping windows. Windows can, however, qualify as part of Wisconsin's IRA-funded Home Energy Rebates (the whole-home HOMES program), which Focus on Energy administers and which rewards measured or modeled whole-house energy savings. Madison Gas and Electric points customers toward those same programs. Terms and funding change, so verify current eligibility with Focus on Energy before counting on any amount.
›My house is in a historic district — can I still replace the windows?
Usually, but with an extra step. If your home is a designated landmark or sits in one of Madison's local historic districts, exterior changes to visible elevations — including window replacement — typically require a Certificate of Appropriateness from the Landmarks Commission, reviewed against the district's design standards. In practice that often steers owners toward preserving and weatherstripping sound original wood sashes, or toward historically appropriate insert units rather than full-frame swaps that alter the opening or trim. On a sound prewar bungalow outside a district, the insert-versus-full-frame call comes down to whether the existing openings are square and rot-free; where they aren't, full-frame work is frequently the honest recommendation. Check your address with the Landmarks Commission early — approval can take time.
Sources
- — U.S. Census Bureau, American Community Survey 5-Year Estimates (B25034, B25035)
- — EPA ENERGY STAR Version 7.0 Residential Windows specification
- — DOE/PNNL IECC climate zone assignments by county
- — IRS, 25C Energy Efficient Home Improvement Credit (P.L. 119-21)