Local research · updated July 2026
Replacement Windows in Chicago, Illinois
Chicago sits on one of the oldest, densest housing stocks in the country: of roughly 1.27 million housing units, 76.5% went up before 1980 and nearly 500,000 predate 1940 (U.S. Census Bureau ACS 2019-2023), with a median build year of 1952. That means block after block of brick bungalows, two-flats, and greystones still carrying their original wood double-hung sashes and separate storm windows. Layer on wind driving off Lake Michigan and hard freeze-thaw winters, and window work here is less about looks than about sashes that have swelled, stuck, or rotted after decades of Northern-zone weather.
Short answer
In Chicago, a standard replacement window (double-hung, casement or slider) typically costs $580–$3,300 installed. Bay and bow windows run $2,900–$9,275+, and a sliding patio door $1,740–$5,795. 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 Chicago with the BEA Regional Price Parity for Chicago-Naperville-Elgin, IL-IN (2024). How we estimate →
76.5%
of Chicago 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
1952
median year built across Chicago's 1,268,199 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 Chicago
Compare companies serving Chicago. 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 | Des Plaines, IL | Get a quote → |
| 1Pella Window and Door Showroom of Northfield, ILPella | Northfield, IL | Get matched → |
| 2Pella Windows and Doors Showroom of Naperville, ILPella | Naperville, IL | Get matched → |
| 3Power Home RemodelingPower Home Remodeling | Oakbrook Terrace, IL | Get matched → |
| 4Power Home RemodelingPower Home Remodeling | Gurnee, IL | Get matched → |
| 5Universal Windows Direct of Northern ChicagoUniversal Windows Direct | Buffalo Grove, IL | Get matched → |
| 6Window NationWindow Nation | Romeoville, IL | Get matched → |
| 7Window World of JolietWindow World | Crest Hill, IL | Get matched → |
| 8Window World of Northwest IndianaWindow World | Valparaiso, IN | Get matched → |
| 9Window World Western ChicagoWindow World | Lisle, IL | Get matched → |
Renewal by Andersen of Chicago
4.8 · 200,000+ reviewsShowrooms in Des Plaines & Lockport · serving the Chicago metro
Full-service manufacturer and installer, transferable warranty, local crews. Why it's our Top Pick
Get a quote →5Universal Windows Direct of Northern Chicago
Buffalo Grove, IL · Universal Windows Direct
Get matched →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 Chicago homeowners directly.
What drives window decisions in Chicago
- The classic Chicago bungalow and two-flat wood double-hung runs on a weight-and-chain counterbalance; when cords break and sashes stick, homeowners weigh restoring the original against a full-frame replacement that fits the existing masonry opening.
- Many older homes pair a single-pane primary sash with an exterior or interior storm window; a tight storm can rival an insulated unit for winter comfort, which makes storm-versus-replacement a real decision rather than a foregone conclusion.
- Wind-driven rain off the lake and repeated freeze-thaw cycles stress old glazing, weatherstripping, and sash joints, so air leakage and rot - not just fogged glass - are common local replacement triggers.
- Homes inside a Chicago Landmark district (or individually designated landmarks) face added review when replacement windows are visible from the street, so product choice can be constrained by historic-appearance rules on top of the city energy code.
Replacement windows & doors by type in Chicago
Local cost ranges and Northern-zone efficiency guidance for each window and door style, specific to Chicago homes:
Ranges localized to Chicago's cost level: national planning ranges shifted by the BEA Regional Price Parity for Chicago-Naperville-Elgin, IL-IN (103.6, U.S. = 100; 2024). How we estimate local costs →
Efficiency requirements for Chicago's climate
Chicago sits in the ENERGY STAR Northern zone (IECC zone 5A (cool, moist), Cook 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
Labor rates in metro Chicago run above the national average, and the housing stock pushes jobs toward the more involved end of the range. Old masonry openings, plaster returns, and original wood sashes rarely accept a simple insert cleanly, so careful full-frame replacement - with attention to flashing, weatherproofing, and matching the existing profile - is common. Budget for city permit steps where the work goes beyond in-kind replacement, and for longer timelines and possible design constraints if the home sits in a landmark district.
For a breakdown by frame material and install type, see our full cost guide.
Rebates & incentives in Illinois
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.
Illinois has been rolling out IRA Home Energy Rebate programs; whole-home efficiency retrofits can include windows within a modeled-savings project. Confirm current program status and eligibility before counting on rebate dollars.
- ComEd energy efficiency program. ComEd funds home energy assessments and weatherization incentives; window replacement typically factors into whole-home efficiency work rather than a standalone window rebate. (ComEd Energy Efficiency Program pages)
Illinois enforces the statewide Illinois Energy Conservation Code (based on recent IECC editions); the City of Chicago administers permitting and historic review through its own building department.
Replacement windows in nearby metros
Not in Chicago proper? These nearby markets carry the same local research: housing-age data, climate-zone specs, and current rebate status for each city:
Chicago window replacement FAQ
›Do I need a permit to replace windows in Chicago?
For residential buildings up to four stories, the Chicago Department of Buildings generally does not require a permit to replace a window in-kind within its existing opening. A permit is required if you enlarge, add, or remove openings, and the city runs an Express Permit Program for straightforward replacements. Requirements can change and interpretations vary, so confirm current rules with the Department of Buildings before you start - and note that homes in a designated landmark district face separate historic review (see below).
›Should I replace the windows or just add storm windows on an old Chicago home?
It depends on the condition of the existing sash. Many pre-1940 Chicago homes have solid old-growth wood double-hungs that can be repaired, weatherstripped, and paired with a tight storm window to reach comfort levels close to a new insulated unit - often at lower cost and while keeping the original look. If sashes are rotted, cords are broken, or you want the performance and low maintenance of modern glazing, full replacement makes more sense. In a landmark district, repair-plus-storm is sometimes the path of least resistance for street-facing windows.
›What efficiency numbers should replacement windows hit in Chicago?
Chicago is in the ENERGY STAR Northern climate zone (IECC zone 5A). Under ENERGY STAR version 7.0, the Northern-zone target is a U-factor of 0.22 or lower, with equivalent-performance options in the 0.23-0.26 range that pair a slightly higher U-factor with higher solar heat gain to capture winter sun. Permitted replacements also have to meet the U-value and solar-heat-gain requirements of the Chicago Energy Transformation Code, so check current code figures alongside the ENERGY STAR label.
›Are there tax credits or incentives for replacement windows in Chicago?
The federal 25C energy-efficient home improvement credit for windows expired on December 31, 2025, so there is no longer a federal tax credit for new window purchases. Remaining incentives in Illinois come from state and utility programs rather than the IRS - Illinois is administering IRA-funded Home Energy Rebates, and utilities such as ComEd (electric) and the local gas utility run energy-efficiency programs. Eligibility, funding, and covered measures change often, so check directly with the program administrator and your utility before counting on any rebate.
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)