Chicago window cost by frame material

One frame material has a Chicago price we can attribute, and it is vinyl. Modernize's Illinois cost page puts a standard vinyl double-hung in Chicago at $650 to $1,200 per window installed, and an energy-efficient vinyl unit at $700 to $1,250, written by Isabella Andersen, reviewed by Catie Bonner, updated March 18, 2026 and read 2026-08-11. For wood, clad wood, fiberglass and aluminum, no Chicago figure from a named and dated author turned up anywhere we looked, so this page publishes none. What it publishes instead is every national range we read, with the guide, its author and its date attached, because those guides disagree with each other, in places by more than a factor of three. Then the part that actually settles a Chicago job: the city caps a replacement window at a 0.30 U-factor whatever the frame is made of, so the rated number on the unit decides compliance, not the material label.

The one Chicago figure, and exactly what it covers

There is no official schedule for what a window costs, so every price anywhere is somebody's observation of a market. This one is a named author's, published with a date, which is the standard this site holds a price to. It covers vinyl. It does not cover any other material.

What the source prices	Per window, installed
Chicago, standard vinyl double-hung	$650 to $1,200
Chicago, energy-efficient vinyl	$700 to $1,250
Illinois statewide, standard vinyl double-hung	$575 to $1,100
Illinois, triple pane instead of double	Add $150 to $350
Illinois whole home, 10 to 15 windows	$6,000 to $16,000

Market observation. Source: Modernize, "Window Replacement Cost & Pricing in Illinois (2026)", by Isabella Andersen, reviewed by Catie Bonner, updated March 18, 2026. Read 2026-08-11.

Two things are worth pulling out of that table. Chicago prices above the state, by the same source's own numbers, and the gap is not trivial for a whole-house job. And the upgrade line is priced per window, so it multiplies: a triple pane decision across 12 openings is a different size of decision than it looks on one line.

Illinois metro	Standard vinyl, per window installed
Chicago	$650 to $1,200
Aurora, Naperville, Elgin	$600 to $1,100
Joliet	$600 to $1,050
Rockford, Peoria, Champaign and Urbana	$575 to $1,000

Same source, same date. Read 2026-08-11.

What we will not publish, and why you should care

Chicago-specific numbers for wood, fiberglass, clad and aluminum do circulate. We found them on two pages, and both are contractor marketing inside this market. One carries a date and no named author. The other carries no author and no date at all, and contradicts itself on whole-house scope, quoting a range in one place and a much larger floor in another. Neither is checkable, and a price nobody can trace is worse than no price, because it anchors what you expect to pay before you have seen a quote.

So this page carries a hole where those numbers would be. That hole is the honest state of the Chicago market as we found it on 2026-08-11, and if we later read a per-material Chicago figure from a named author with a date, it goes in and this paragraph changes. How we source, and what we refuse to publish, is set out on our methodology page.

National ranges by material, every source named

Here is every national figure we read, side by side, with nothing averaged and nothing blended. Read across a row and you are reading five publishers disagreeing, which is more useful than a single confident number would be. None of these is a Chicago price and none is presented as one.

Material	Today's Homeowner	This Old House, average	Modernize	Bob Vila	Pella, manufacturer
Vinyl	$450 to $800	$527	$400 to $850	$100 to $900, average $550	$800 to $1,600
Wood	$600 to $1,500	$567	$800 to $1,500 and up	$150 to $1,300, average $800	$1,100 to $2,200 and up
Fiberglass	$500 to $1,000	$491	$900 to $1,400	$500 to $1,500, average $1,250	$1,100 to $2,200
Aluminum	$400 to $850	$448	$650 to $1,100	$75 to $400, average $275	Not given
Composite	$500 to $1,200	$529	$1,000 to $1,800	$300 to $1,200, average $900	Not given
Clad wood, cladding type not separated	Not broken out	Not broken out	$950 to $1,800	Not broken out	Not broken out

Market observations, all national, all read 2026-08-11. Today's Homeowner, by Elisabeth Beauchamp, reviewed by Amy DeYoung, updated September 3, 2025. This Old House, by Stephanie Minasian-Koncewicz, updated June 23, 2026, from a November 2025 survey of 1,000 homeowners. Modernize, by Catie Bonner, reviewed by Isabella Andersen, updated March 17, 2026. Bob Vila, by Katie Flannery and Evelyn Auer, updated June 10, 2024, the oldest source in the table. Pella is a window manufacturer quoting prices for its own products, which is useful and is not independent. The clad wood row is Modernize, "Clad Wood Windows", by Rob Sabo, reviewed by Catie Bonner, August 29, 2025.

They do not agree, and the disagreement is the finding

Three of these publishers also give a single national average per window: about $280 from Bob Vila in 2024, about $477 from This Old House off its 2025 survey, and about $1,047 from Modernize in 2026. Those cannot all describe the same thing. Our reading, labelled as ours: the spreads look like different bases, some pricing a unit and some pricing a unit installed, and none of the sources we read stated its basis in what we read. So we publish no blended figure. An average of numbers measuring different things is a number measuring nothing.

What does survive the disagreement is worth having:

• Wood prices above vinyl in all five sources. That is the only ranking every guide we read agrees on. It is a weak finding stated honestly, and it is more than the confident material league tables elsewhere can support.
• Aluminum is where they disagree most. Bob Vila's average of $275 and Modernize's floor of $650 are not describing one product. If a quote leans on aluminum being the cheap option, ask what is actually being priced.
• Fiberglass moves the most between sources. This Old House's survey average puts it below vinyl. Modernize puts its floor above vinyl's ceiling. Same material, opposite conclusions, both published in 2026.
• The manufacturer's numbers sit above everyone's. Pella's own vinyl range starts where several guides' ranges end. A brand quote and a market range are different objects and comparing them directly will mislead you.

The Chicago rule that applies to every material equally

This is the part of a material decision that is not a matter of opinion. Chicago caps the performance of a replacement window, and the cap is written against the whole assembly, glass and frame together. It names no material.

What the code caps	Chicago maximum	Applies to
Fenestration U-factor	0.30	Windows and glazed doors, any frame material
Glazed fenestration SHGC	0.40	All glazed fenestration
Skylight U-factor	0.55	Skylights only

Read in Table R402.1.2 of SO2022-2008, the ordinance adopting the 2022 Chicago Energy Transformation Code, on chicago.gov, 2026-08-11. Applies to residential buildings up to four stories above grade plane. The full reading is on the energy code page, including why it binds even when no permit is required.

Follow that through and the material question gets smaller than the market makes it look. Any frame material can be built into a unit that meets 0.30, and any frame material can be built into one that does not. The rated number travels with the specific unit, not with the category on the brochure. So a compliant vinyl window and a compliant fiberglass window are equally compliant, and the extra money buys appearance, frame profile, warranty terms and whatever the manufacturer has built into the product, rather than a better legal position.

Chicago sits in climate zone 5A for the purposes of that code, stated at Section C301.1 of the same ordinance. That is why a U-factor quoted from a national article about window ratings may not be the number that governs your job.

Freeze-thaw, and the ranking we are not going to invent

This is the question a Chicago homeowner actually wants answered: which frame material holds up to a Chicago winter on a west-facing wall, year after year. We publish no ranking, because we read no attributable source that tested one. Every material league table for cold climates we came across was written without a citation, and adding a sixth uncited one would make this page the problem it exists to fix.

Two mechanisms get named in that argument, and we state them as general building knowledge rather than as sourced Chicago facts, so you can tell the difference. Frame materials expand and contract at different rates across a temperature swing, which is why the joint between frame and opening is a durability question and not only a fitting question. And metal conducts heat far better than vinyl, wood or fiberglass, which is why an aluminum residential window is built with a thermal break between its outside and inside metal. We read no source measuring either against Chicago's climate, so no number, no service life and no ordering appears here.

What replaces the ranking is three things you can check, in writing, before you sign:

• The rated U-factor of the exact unit being quoted. Not the product line, not the brand. Different glass packages and grid options from one manufacturer perform differently. Chicago's cap is 0.30 and it is a ceiling, not a target.
• The written warranty, read for its exclusions. How long, what voids it, whether it covers labour as well as the unit, and whether it survives a sale. A material that is claimed to last longer should be sitting behind a longer written term. If it is not, the claim is doing work the paperwork will not.
• What happens if a substitute unit arrives. Product changes between order and delivery are ordinary. Agree in advance that any substitute meets the same rated numbers, or the material you compared quotes on is not the material you get.

The recommendation, in one line. Settle the performance number first, at 0.30 or better, then treat frame material as an appearance, maintenance and warranty decision rather than a compliance one, and refuse to compare two quotes whose materials or rated numbers differ.

Clad wood is the least comparable line on a quote

A clad window is a wood window with a weather-resistant exterior skin. The skin may be aluminum, vinyl or fiberglass, and those are three different products sold under one word. The only source we read that prices the category gives $950 to $1,800 per window nationally and explicitly does not separate the cladding types (Modernize, "Clad Wood Windows", by Rob Sabo, reviewed by Catie Bonner, August 29, 2025, read 2026-08-11).

No Chicago-specific clad price exists in anything we read, aluminum-clad included. So if two quotes both say "clad", you are not looking at a comparison yet. Ask which material the exterior is, ask for the finish warranty on that exterior specifically, and ask whether the interior is finished or bare wood, because that changes what you do after installation as well as what you pay for it.

How much of the bill is the material at all

A page about materials owes you this: if materials are most of the cost, then the material choice is most of the decision, and if they are not, switching material moves the bill less than you would expect. The sources we read do not agree, and one publisher disagrees with itself.

Split of a window job	Source	Date
Materials about two-thirds, labour about one-third	Modernize, Illinois page, Isabella Andersen, reviewed by Catie Bonner	March 18, 2026
Materials about $897 per window, labour about $149	Modernize, national page, Catie Bonner, reviewed by Isabella Andersen	March 17, 2026
$40 to $60 per worker per hour, about $100 an hour for a two-worker crew	Today's Homeowner, Elisabeth Beauchamp, reviewed by Amy DeYoung	September 3, 2025

All read 2026-08-11.

Look at the first two rows. Same publisher, the same two named staff, pages published one day apart, and the implied labour shares are not compatible with each other. We report both and reconcile neither, because we cannot. The practical consequence for you is that nobody we read can tell you reliably how much of a Chicago quote moves when the frame material changes.

There is no Chicago-specific labour rate in anything we read either. The one-third share is stated Illinois-wide in its own source, and this site does not relabel a state figure as a city one. The cost hub collects what is and is not attributable across the whole pillar.

The Illinois tier bands, and what they do not tell you

The same Illinois source also splits the market into three price bands. They are worth seeing, with one caution attached that the market usually leaves off.

Tier, as the source words it	Illinois, per window installed
Basic	$575 to $1,000
Mid-range	$825 to $1,300
High-end	$1,250 to $2,700

Modernize, Illinois page, Isabella Andersen, reviewed by Catie Bonner, March 18, 2026. Read 2026-08-11.

The caution: the source ties those bands to tiers, not to frame materials, and we are not going to map them onto materials for you. A salesperson who calls a material "high-end" is using a word the price data does not define. The bands are useful for sizing a budget, and they are not a material recommendation in disguise.

The federal tax break most window pages still get wrong

If a quote leans on a federal energy tax break to justify a better frame, check the date. The IRS page for the Energy Efficient Home Improvement Credit states that it is "Allowed for qualifying property placed in service on or after Jan. 1, 2023, and before December 31, 2025." That page was updated April 28, 2026, and we read it 2026-08-11. Many window pages still describe the break as available.

We publish no amount, no cap and no percentage for it, here or anywhere on this site. Figures attached to programmes like that are right on the day they are written and wrong the day a rule changes, and the agency owns the current answer rather than us. Read the current position at the IRS page for the Energy Efficient Home Improvement Credit.

You may not need a different material at all

This site is paid a referral fee when a homeowner asks to be matched with a window contractor, which is set out in full on how we make money. So it is worth being direct about the cases where the material question is not your question.

• If the sash and frames are sound, repair is on the city's no-permit list. Repairing damage to an existing window, and replacing glass in an existing sash, need no building permit in any building at any height, read at chicago.gov 2026-08-11. One failed unit is not evidence that a house needs a new material.
• Chicago's own adopted guidance argues against replacing first. Its Guidelines for Alterations to Historic Buildings, adopted March 4, 1992, say: "The first and best answer to the question of how to treat windows is not to replace them but rather to retain and repair the existing sash and frames." That text is written for landmark property rather than every house, and it is still the city rejecting the automatic replace pitch.
• The expensive material does not buy compliance. Chicago's cap is 0.30 whatever the frame is, so a compliant vinyl unit satisfies the code exactly as a compliant fiberglass one does. That is our reading of the code text quoted above, said plainly.
• Changing material may change your permit answer, and nobody has settled that. The city's exemption runs on in-kind replacement, defined as new elements "of the same type, size, and shape", and it does not publish whether frame material is part of "type". Swapping wood for vinyl is therefore an open question rather than a safe assumption. Ask the Department of Buildings before you order, and read do I need a permit first.

What we could not confirm, and will not guess

• Any Chicago price for wood, clad wood, fiberglass or aluminum. The numbers that exist locally are on unattributed contractor marketing pages in this market, so they are not published here in any form.
• Chicago resale return by material. Percentages for vinyl and wood in Chicago are quoted around the web, attributed to a cost-versus-value report. Both sites hosting that report refused our requests, so we never read the primary source and publish no return figure.
• What basis each national guide used. Material only or installed, per unit or per opening. None of the guides we read stated it in what we read, which is the most likely reason their averages differ by more than a factor of three.
• Any freeze-thaw or service-life measurement by frame material. Nothing attributable was read, so nothing is ranked, and no expected lifespan appears on this page.
• A Chicago labour rate. The labour share we publish is Illinois-wide in its own source and is labelled that way.
• Values for buildings over four stories. The commercial table governing them was not extracted at source, so no U-factor for tall buildings appears anywhere on this site.

Sources

All read 2026-08-11. Cost figures are market observations, named with their authors and publication dates: Modernize, "Window Replacement Cost & Pricing in Illinois (2026)", by Isabella Andersen, reviewed by Catie Bonner, updated March 18, 2026; Modernize's national window cost guide, by Catie Bonner, reviewed by Isabella Andersen, updated March 17, 2026; Modernize, "Clad Wood Windows", by Rob Sabo, reviewed by Catie Bonner, August 29, 2025; Today's Homeowner, by Elisabeth Beauchamp, reviewed by Amy DeYoung, updated September 3, 2025; This Old House, by Stephanie Minasian-Koncewicz, updated June 23, 2026, from a November 2025 survey of 1,000 homeowners; Bob Vila, by Katie Flannery and Evelyn Auer, updated June 10, 2024; and Pella's own pricing page, updated May 14, 2026, labelled above as a manufacturer. Rules are quoted from the ordinance adopting the 2022 Chicago Energy Transformation Code, for Table R402.1.2, the residential scope sentence and Section C301.1; the city's list of work not requiring a building permit, for the repair and reglazing exemptions and the in-kind definition; and the IRS page for the Energy Efficient Home Improvement Credit. No competitor page, contractor blog or search summary informed any figure or statement above.

If you want quotes to hold against these numbers, the form below passes your details to an independent licensed window contractor working in your part of the city. What that relationship is, and is not, is set out on the about page.

Straight answers

Questions Chicago homeowners ask

What does a vinyl replacement window cost in Chicago?

Modernize's Illinois cost page puts a standard vinyl double-hung in Chicago at $650 to $1,200 per window installed, and an energy-efficient vinyl unit at $700 to $1,250. That page is written by Isabella Andersen, reviewed by Catie Bonner, and updated March 18, 2026. We read it 2026-08-11. It is the only Chicago-specific window price this site has found from a named and dated author, and it covers one material only. Treat it as one publisher's observation of a market rather than an official schedule, because there is no official schedule for what a window job costs.

What do wood, fiberglass or aluminum windows cost in Chicago?

No attributable Chicago figure exists for them as far as we can tell, so this page publishes none. Chicago-area numbers for those materials do circulate, and the two pages carrying them are contractor marketing in this market: one is dated with no named author, the other carries no author and no date and contradicts itself on whole-house scope. We do not repeat a price nobody can check. What this page gives you instead is every national range we read, each one labelled with the guide, its author and its publication date, plus the Illinois statewide numbers from a named author. A national range is not a Chicago price and is never presented as one here.

Which frame material stands up to Chicago freeze-thaw?

We publish no ranking, because we read no attributable source that tested frame materials against this climate. Every material ranking for cold weather we found was written without a citation, and inventing one here would make this page the same problem. Three things are checkable instead. First, the rated U-factor of the exact unit quoted, which Chicago caps at 0.30 for homes up to four stories. Second, the written warranty: its length, what voids it, and whether it survives a sale. Third, whether two quotes describe the same performance level at all. Those you can hold a contractor to. A material label you cannot.

Does the frame material change what the Chicago energy code requires?

No. The city's numbers apply to the whole window assembly, glass and frame together, and the code sets no material requirement. For a residential building up to four stories above grade plane the maximum window U-factor is 0.30, the maximum solar heat gain coefficient is 0.40, and skylights are capped at 0.55. Read in Table R402.1.2 of SO2022-2008, the ordinance adopting the 2022 Chicago Energy Transformation Code, on chicago.gov, 2026-08-11. So a vinyl unit and a fiberglass unit that both meet 0.30 are equally compliant, and paying more buys something other than compliance.

Can I still claim a federal tax break for a more efficient window?

Not for a window put in now. The IRS page for the Energy Efficient Home Improvement Credit states it is "Allowed for qualifying property placed in service on or after Jan. 1, 2023, and before December 31, 2025." That page was updated April 28, 2026 and we read it 2026-08-11. Plenty of window pages still describe this as live, which is worth knowing if a quote leans on it. We publish no amount, cap or percentage for it: figures on programmes like this go stale the day a rule changes, and the agency owns the current answer. Read it at irs.gov.

Is aluminum really the cheapest frame material?

Aluminum is where the guides disagree most violently, so the honest answer is that nobody we read agrees. Bob Vila puts aluminum at $75 to $400 per window with a $275 average (Katie Flannery and Evelyn Auer, June 10, 2024). Modernize puts it at $650 to $1,100 (Catie Bonner, reviewed by Isabella Andersen, March 17, 2026). Those are not the same product being priced, and neither source told us its basis. Today's Homeowner and This Old House both land between them. The only ranking all five sources agree on is that wood prices above vinyl.

What is a clad window, and why is it priced as one thing?

A clad window is a wood window with a weather-resistant exterior skin, and the cladding may be aluminum, vinyl or fiberglass. The one source we read that prices the category, Modernize's clad wood page by Rob Sabo, reviewed by Catie Bonner, August 29, 2025, gives $950 to $1,800 per window nationally and does not separate the three cladding types. No Chicago-specific clad price was found at all. That makes "clad" the least comparable line on a quote sheet, so ask which material the exterior actually is before you compare two clad prices against each other.