What window replacement costs in Chicago, and what moves the number

One Chicago cost figure carries a named author, a named reviewer and a date, and it is the only local one we could find that does. Modernize 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. Its Illinois whole-home range, for 10 to 15 windows, is $6,000 to $16,000. Source: Isabella Andersen, reviewed by Catie Bonner, updated March 18, 2026, read 2026-08-11. Treat that as one publisher's read of a market, because no agency publishes what window work costs. Four things move your own number more than the brand on the sticker: how many openings you have, what the frame is made of, whether the opening stays exactly as it is, and whether the property sits in a landmark district. The last one can rewrite the specification before price comes up at all.

This is the hub for everything this site publishes about window cost, and the five pages under it are linked below. The standard every figure here is held to is set out on our methodology page, and what we are paid and by whom is on how we make money.

What actually moves the number

Cost pages usually open with an average. That is the least useful thing on the page, because the spread inside any average is wider than the difference between averages. Start with the drivers instead. The table below ranks them by how much they move a Chicago quote, and every row that carries a figure carries its source with it.

Driver	Which way it moves the price	What we can attribute
Number of openings	The single biggest multiplier. Everything else is per window	Illinois, 10 to 15 windows: $6,000 to $16,000 (Modernize Illinois, March 18, 2026)
Frame material	Vinyl low, clad wood and composite high	See the material table below. Every band is national except the Illinois vinyl bands. Our own arithmetic on that table, not a published multiplier: Modernize's national vinyl band ($400 to $850, March 17, 2026) against its clad wood band ($950 to $1,800, August 29, 2025) is roughly two times
Specification tier within a material	Wide. Tier moves price as much as material does	Illinois tiers: basic $575 to $1,000, mid $825 to $1,300, high end $1,250 to $2,700 per window (Modernize Illinois, March 18, 2026)
Glass package	Up. Relevant in a climate that runs a real heating season	Illinois triple-pane upgrade: add $150 to $350 per window (Modernize Illinois, March 18, 2026)
Window type and operation	Up sharply for bay, bow and large casement. Down for single-hung	See the type table below. National only
Whether the opening changes	Up, and it changes the permit answer too	Chicago defines in-kind replacement as new elements "of the same type, size, and shape" (chicago.gov, read 2026-08-11)
Condition behind the trim	Up, and it is the classic mid-job change order	National, not Chicago. Repairing a rotted frame: $250 to $800 (This Old House, June 23, 2026)
Access and floor height	Up. Upper floors, alleys and tight gangways cost labour hours	No attributable Chicago figure. Named as a driver, not priced
Landmark or district status	Up, sometimes a lot, because it constrains the product before price is discussed	The city's adopted guidance requires replacements matching "design and operation, material, glass size, muntin arrangements, profiles, and trim" (chicago.gov, 1992 Guidelines, read 2026-08-11)
Removal and disposal of the old units	Up, and it is sometimes quoted separately	National, not Chicago. Removal and disposal: $55 to $65 per hour (This Old House, June 23, 2026)

Every cost figure in that table is repeated with its full source below. Rows are labelled Chicago, Illinois or National, and no national figure in that table is a Chicago figure. All sources read 2026-08-11, except the two This Old House figures, re-read 2026-08-12.

The one Chicago figure with full attribution

We looked for Chicago cost data that names who wrote it and when. One source clears that bar. Everything in the table below comes from Modernize's Illinois page, written by Isabella Andersen and reviewed by Catie Bonner, updated March 18, 2026 and read 2026-08-11.

What it prices	Figure
Chicago, standard vinyl double-hung, per window installed	$650 to $1,200
Chicago, energy-efficient vinyl, per window	$700 to $1,250
Illinois statewide, standard vinyl double-hung	$575 to $1,100
Illinois whole home, 10 to 15 windows	$6,000 to $16,000
Illinois, basic tier	$575 to $1,000 per window
Illinois, mid tier	$825 to $1,300 per window
Illinois, high-end tier	$1,250 to $2,700 per window
Illinois, triple-pane upgrade	Add $150 to $350 per window
Illinois, split between materials and labour	Materials about two-thirds, labour about one-third

Chicago against the rest of Illinois, from the same publisher

This is the part worth carrying into a quote conversation. The same page prices Chicago above every other Illinois metro it lists, on the same product. That is a real city premium from a single consistent source rather than a comparison stitched together from different publishers, which is the only kind worth making.

Metro	Standard vinyl double-hung, per window
Chicago	$650 to $1,200
Aurora, Naperville, Elgin	$600 to $1,100
Waukegan, Gurnee	$600 to $1,075
Joliet	$600 to $1,050
Springfield	$575 to $1,025
Rockford, Peoria, Bloomington and Normal, Champaign and Urbana	$575 to $1,000

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

The Chicago numbers we found and did not publish

Two other pages carried genuinely Chicago-specific prices. Neither appears on this site, and the reasons are worth stating because they are the same reasons a homeowner should apply to any cost page they land on.

• Both are contractor marketing pages. A company that sells the work is not a neutral source for what the work costs. This site quotes a rule from the agency that writes it and a price from a publication that names its author, and a seller's own page is neither.
• Neither shows an author. One shows a date and no author. The other shows no author and no date at all, which means nobody can tell whether the number is from this year or from 2019.
• One contradicts itself inside a single page. It gives a whole-house range, then states elsewhere on the same page that multi-window projects start well above its own top end. Both cannot be true. A page that disagrees with itself has not been checked by anyone, and copying either half of it onto this site would just move the error somewhere new.

This is the honest trade. Publishing a made-up Chicago average would make this page look more confident and would make it worse. What we can do instead is publish the one local figure that survives scrutiny, publish the national bands with their authors attached, and be explicit about which is which.

National cost per window by frame material

These are national figures. They are not Chicago figures and are not relabelled as any. They are still useful, because the ratio between materials travels better than the absolute number does: wherever you are, vinyl is the floor and clad wood sits near the ceiling.

Material	Today's Homeowner, Sep 3, 2025	This Old House average, Jun 23, 2026	Modernize, Mar 17, 2026
Vinyl	$450 to $800	$527	$400 to $850
Wood	$600 to $1,500	$567	$800 to $1,500 or more
Fiberglass	$500 to $1,000	$491	$900 to $1,400
Aluminum	$400 to $850	$448	$650 to $1,100
Composite	$500 to $1,200	$529	$1,000 to $1,800
Clad wood	Not broken out	Not broken out	$950 to $1,800, all cladding types together

Today's Homeowner: Elisabeth Beauchamp, reviewed by Amy DeYoung, updated September 3, 2025. This Old House: Stephanie Minasian-Koncewicz, updated June 23, 2026, from a November 2025 survey of 1,000 homeowners. Modernize: Catie Bonner, reviewed by Isabella Andersen, updated March 17, 2026. Clad wood: Modernize, "Clad Wood Windows", Rob Sabo, reviewed by Catie Bonner, August 29, 2025. All read 2026-08-11.

Two more sources are worth listing separately rather than mixing into that table, because each needs a label attached.

• Bob Vila (Katie Flannery and Evelyn Auer, updated June 10, 2024) reads vinyl at $100 to $900, wood at $150 to $1,300, fiberglass at $500 to $1,500, aluminum at $75 to $400 and composite at $300 to $1,200. It is the oldest source here and the only one from before 2025, which is why it sits outside the main table rather than inside it.
• Pella (updated May 14, 2026) reads vinyl at $800 to $1,600, wood at $1,100 to $2,200 or more, and fiberglass at $1,100 to $2,200. Pella is a window manufacturer writing about the price of its own product category. That does not make the figures wrong, and it does mean they are not neutral. Read them as the high end of the range.

Both read 2026-08-11.

Why we will not print one national average

Three sources we read publish a single national average per window. They are $280 (Bob Vila, June 10, 2024), $477 (This Old House, from its November 2025 survey, page updated June 23, 2026) and $1,047 (Modernize, updated March 17, 2026). Those differ by close to four times. They are almost certainly not measuring the same thing: some price the unit, some price the installed job. Averaging them would produce a number that describes nothing real, so this site publishes the three, with the names on them, and lets you see the disagreement instead of hiding it inside one tidy figure.

National cost by window type

No source we read publishes Chicago prices broken out by window type from a named author, so everything below is national. It still answers the question most Chicago owners are actually asking, which is not what a window costs but what the swap they are considering costs relative to the one they have.

Window type	Today's Homeowner, Sep 3, 2025	This Old House average, Jun 23, 2026	Modernize, Mar 17, 2026
Single-hung	$200 to $400	$397	$200 to $850
Double-hung	$430 to $915	$495	$429 to $915
Casement	$500 to $1,000	$560	$597 to $1,273
Picture	$700 to $1,300	$419	$600 to $1,900
Bay	$1,000 to $7,000	$791 to $886, bay and bow together	$1,700 to $3,859 or more, bay and bow together
Bow	$2,000 to $4,000	Combined with bay above	Combined with bay above
Awning	$430 to $830	$514	Not given
Sliding	Not given	$507	$775 to $1,652

Same three sources and dates as the material table. All read 2026-08-11.

Wood deserves its own line, because Chicago's older housing stock is full of it and because the spread inside wood is enormous. This Old House publishes a wood-only set built on RSMeans data from Gordian and a 2024 survey of 2,500 homeowners.

Window type, wood	Range and average
Double-hung	$325 to $950, average $637.50
Casement	$410 to $2,450, average $1,430
Picture	$640 to $1,750, average $1,195
Bay	$1,475 to $5,100, average $3,287.50
Awning	$415 to $1,100
Sliding	$570 to $1,575

This Old House, "How Much Do Wood Replacement Windows Cost?", Stephanie Minasian-Koncewicz, updated April 13, 2026. Read 2026-08-11.

Whole-house ranges, and how far apart they sit

A per-window number is the right unit for comparing quotes. A whole-house number is the one people budget with. Here is every whole-house range we can attribute, with the Illinois row first because it is the only one written about this state.

Scope	Range	Source and date
Illinois, 10 to 15 windows	$6,000 to $16,000	Modernize Illinois, March 18, 2026
National, five to 25 windows	$2,385 to $11,925	This Old House, June 23, 2026
National, 25 windows or more	$11,925 or more	This Old House, June 23, 2026
National, eight to 10 windows, wood	$10,400 to $13,000	This Old House wood guide, April 13, 2026
National, 18 to 20 windows, wood	$23,400 to $26,000	This Old House wood guide, April 13, 2026
National, 10 windows	$2,000 to $11,500	Bob Vila, June 10, 2024
National, 20 windows	$4,000 to $23,000	Bob Vila, June 10, 2024

All read 2026-08-11.

Read the wood rows against the general ones and the material decision stops being abstract. A wood job at eight to 10 windows lands near the top of the general range for five to 25. That is the clearest published illustration of why material choice, not window count, is usually the decision that sets your budget.

What share of the price is labour

Worth knowing before somebody offers to discount the installation. The sources disagree, and one publisher disagrees with itself across two pages published a day apart by the same two staff. We are not going to smooth that over.

What it says	Source and date
Materials about two-thirds, labour about one-third	Modernize Illinois, March 18, 2026
Materials $897 per window, labour $149 per window, which is roughly 85 percent against 15 percent	Modernize national, March 17, 2026
$40 to $60 per worker per hour, about $100 an hour for a two-worker crew	Today's Homeowner, September 3, 2025
Window replacement labour generally: "the labor cost for window replacement is between $55 and $65 per hour", or $100 to $300 per window	Bob Vila, June 10, 2024, read 2026-08-12
Removal and disposal only: "expect to pay between $55 and $65 per hour for standard window removal and disposal". Repairing a rotted frame $250 to $800	This Old House, June 23, 2026, read 2026-08-12

Rows one to three read 2026-08-11. The last two rows were re-read at both publishers on 2026-08-12 because the same $55 to $65 band appears in both, two years apart, and that looked like one figure attributed twice. It is not. Bob Vila prices window replacement labour as a whole at that band. This Old House prices only removal and disposal at it. Both sentences are quoted above so you can see which scope each one covers. Both are national, not Chicago.

How to use the conflict rather than be confused by it. For an Illinois job, use the Illinois split: roughly a third of the money is labour. That means a large discount offered on installation alone is being taken out of a third of the job, and a quote that is cheap because the labour line is thin is usually telling you something about the crew rather than the price. It also means the material and glass decisions are where your money actually goes, which is the argument for spending your attention there.

The federal tax break, and where it stands now

A lot of window cost pages still advertise a federal tax break on new windows as though it were live. The IRS page for the Energy Efficient Home Improvement Credit, updated April 28, 2026 and read 2026-08-11, states that it was allowed for qualifying property placed in service on or after January 1, 2023 and before December 31, 2025.

We publish no amounts, no caps and no eligibility rules for it here. Those belong to the IRS, they change, and a page like this one is exactly the wrong place for a homeowner to be reading them second-hand. If any part of your decision rests on it, read it at the agency: the IRS page for this programme. If a salesperson quotes you a figure from it, ask them to show you the IRS page rather than a brochure.

What we could not source, and will not invent

Five things a Chicago homeowner might reasonably want are missing from this page. Each is missing on purpose.

• A Chicago resale-return figure. A third-party blog reported Chicago returns for vinyl and wood window replacement, attributing them to the Journal of Light Construction Cost vs. Value Report. Both the report's own sites returned an access error to us and were not read. That makes it a secondary-source claim, and this site does not promote those to published facts. No return figure appears anywhere here.
• A Chicago aluminum-clad price. Nothing we read separates aluminum-clad from other clad wood, and nothing prices clad wood in Chicago. The national clad band is on this page and is labelled national.
• A Chicago labour rate. The one-third labour share is Illinois-wide, not Chicago, and the hourly rates above are national. There is no Chicago hourly figure here.
• Chicago prices by window type. The only Chicago figures with a named author are for vinyl double-hung units. Everything by type on this page is national.
• A permit fee. We have not read a Department of Buildings fee for window replacement at the agency that charges it, so no permit figure appears on this site. The permits hub explains what to ask instead.

You may not need any of this

This site is paid a referral fee when a homeowner asks to be matched with a window contractor, which is why it is worth saying plainly when spending nothing is the right answer.

• One failed unit is not a whole-house job. Chicago's published list of work needing no building permit includes, in any building, "Repairing damage to an existing window or exterior door" and "Replacing glass in an existing window sash or door frame". A single fogged sealed unit or a broken sash is a repair, and pricing it against the whole-house ranges above is how a small problem turns into a five-figure quote.
• The city's own adopted guidance says repair before replacement. Chicago's Guidelines for Alterations to Historic Buildings, adopted March 4, 1992, read: "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." On the energy argument specifically it says: "properly weather-stripped, single-glazed sash can greatly reduce or eliminate air infiltration between sash and frame where most energy is lost. The cost of weather stripping is nominal compared to the price of replacement windows, yet the effect can be considerable." That is written about landmark property rather than every house. It is still the city declining to accept the energy pitch as an automatic reason to replace, and it is worth hearing before a sales visit rather than after one.
• If you only want to know whether a quote is fair, you do not need a form. The tables on this page and the two pages on quote comparison below will answer that without anyone calling you.

Chicago quotes read at chicago.gov 2026-08-11: work not requiring a building permit, exterior; Guidelines for Alterations to Historic Buildings and New Construction, adopted March 4, 1992.

How to use these numbers on a real quote

A reading aid, in order. It ends in a recommendation, because a page that lists considerations and reaches no conclusion has left the work to you.

• Convert every quote to a per-opening number. Divide the total by the number of openings. That is the only figure that compares across quotes and against the Chicago band of $650 to $1,200 for standard vinyl (Modernize Illinois, March 18, 2026, read 2026-08-11).
• Place it against the band, then explain the gap. Above the band is not automatically wrong. Clad wood, a landmark district specification, triple glazing, upper floors and a bay or bow all sit above it for legitimate reasons, and every one of them is priced somewhere on this page.
• Make the salesperson name the driver. "Better quality" is not a driver. Frame material, glass package, whether the opening changes, access, and disposal are.
• Ask what happens to the opening. If the answer is anything other than the same size and shape, both your price and your permit answer have changed, and the permit page is the one to read next.
• Check whether the specification is being set by the district, not the salesperson. In a landmark district the constraint arrives before price does. Settle that first.

The recommendation. Write your own scope in one paragraph, in the city's vocabulary, before anybody visits: how many openings, what type each is, whether every opening stays exactly as it is, and what frame material you are pricing. Send that same paragraph to three contractors. Three quotes against one written scope are comparable and are the only way these numbers become useful; three quotes against three scopes are three different jobs and the cheapest one is usually the smallest one.

The five pages under this hub

Cost by window type

Double-hung, casement, picture, bay, bow, awning and slider, priced against each other with every figure attributed, plus the wood-only set built on RSMeans data from Gordian. Written for the swap most Chicago owners are actually considering, which is usually a like-for-like double-hung, and for the one that costs the most to get wrong, which is a bay.

Cost by frame material

Vinyl, wood, clad wood, fiberglass, aluminum and composite, with the national bands from four publications and the Illinois vinyl bands that are the only local ones available. Also the cold-climate argument: aluminum conducts, which matters more in a Chicago January than it does in most of the country where these national figures were gathered.

Repair against replace, as economics

The comparison that decides whether any of the other pages matter. Sash repair, weather stripping and sealed-unit replacement against a whole-house job, including the city's own adopted position that repair comes first and that weather stripping is nominal in cost against replacement. This is the page that argues you out of a sale where the numbers argue that way.

What is actually in a window quote

Two quotes for different scopes are not comparable, and most quote comparison is people comparing them anyway. This page covers the line items, converting to a per-opening number, the places scope differences hide, what to ask when a gap is unexplained, and the questions that surface a change order before it happens instead of afterwards.

Rebates, tax credits and financing

What we opened and read at the agency that runs it, what has closed, what has not launched, and the Illinois contract and cancellation rules that govern the money. Read it before a salesperson tells you a programme will pay for part of your job.

Related pages outside this pillar

• Do I need a permit to replace windows in Chicago? The answer is usually no, and it is worth settling before you accept a permit line item on a quote.
• Landmark buildings and landmark districts. The one thing that can rewrite your specification, and therefore your price, before the conversation about cost even starts.
• Energy code requirements for replacement windows. What Chicago's own energy code requires of a replacement window, which sets a floor under the glass package you are being quoted.

Sources

All read 2026-08-11, with the This Old House and Bob Vila labour figures re-read at both publishers 2026-08-12. Modernize, "Window Replacement Cost and Pricing in Illinois (2026)", Isabella Andersen, reviewed by Catie Bonner, updated March 18, 2026. Modernize national window replacement cost, Catie Bonner, reviewed by Isabella Andersen, updated March 17, 2026. Modernize, "Clad Wood Windows", Rob Sabo, reviewed by Catie Bonner, August 29, 2025. Today's Homeowner, Elisabeth Beauchamp, reviewed by Amy DeYoung, updated September 3, 2025. This Old House, Stephanie Minasian-Koncewicz, updated June 23, 2026, from a November 2025 survey of 1,000 homeowners. This Old House, "How Much Do Wood Replacement Windows Cost?", Stephanie Minasian-Koncewicz, updated April 13, 2026, citing RSMeans data from Gordian and a 2024 survey of 2,500 homeowners. Bob Vila, Katie Flannery and Evelyn Auer, updated June 10, 2024. Pella, updated May 14, 2026. IRS, Energy Efficient Home Improvement Credit, page updated April 28, 2026. City of Chicago, Guide to Building Permits, work not requiring a building permit, exterior. City of Chicago, Guidelines for Alterations to Historic Buildings and New Construction, adopted March 4, 1992. No competitor page, contractor marketing page or search-engine summary informed any figure above.

If you want real 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 what it is not, is set out on the about page.

Straight answers

Questions Chicago homeowners ask

What does window replacement actually cost in Chicago?

The one Chicago figure we found with a named author, a named reviewer and a date puts a standard vinyl double-hung at $650 to $1,200 per window installed, and an energy-efficient vinyl unit at $700 to $1,250 per window. Its Illinois whole-home range, for 10 to 15 windows, is $6,000 to $16,000. Source: Modernize, "Window Replacement Cost and Pricing in Illinois (2026)", Isabella Andersen, reviewed by Catie Bonner, updated March 18, 2026, read 2026-08-11. That is one publisher's read of a market, not a price list. No agency publishes what window work costs.

Why will you not just give me one Chicago average?

Because averaging sources that disagree hides the disagreement instead of resolving it. The three national averages we read are $280 (Bob Vila, June 10, 2024), $477 (This Old House, from a November 2025 survey of 1,000 homeowners, page updated June 23, 2026) and $1,047 (Modernize, updated March 17, 2026). They differ by nearly four times, most likely because some price the unit and some price the installed job. Blending them produces a number that matches nothing. Ranges with the source attached are less satisfying and far more useful.

Is there a Chicago price for aluminum-clad wood windows?

Not one we can attribute, and this matters here because clad wood is exactly what a landmark district specification tends to push an owner toward. The only clad figure we read is national: $950 to $1,800 per window for clad wood (Modernize, "Clad Wood Windows", Rob Sabo, reviewed by Catie Bonner, August 29, 2025, read 2026-08-11), and that page groups aluminum-clad, vinyl-clad and fiberglass-clad together rather than separating them. So there is no Chicago aluminum-clad number on this site. Treat the national clad band as a starting point for a conversation, not a Chicago quote.

How much of my quote is labour?

The sources disagree, and one publisher disagrees with itself. Modernize's Illinois page says materials are about two-thirds and labour about one-third (March 18, 2026). Its national page, published one day earlier by the same two staff, works out at about 85 percent materials against about 15 percent labour, at $897 and $149 per window (March 17, 2026). Today's Homeowner puts installers at $40 to $60 per worker per hour, roughly $100 an hour for a two-worker crew (September 3, 2025). All read 2026-08-11. Use the Illinois split for an Illinois job and expect a real quote to sit somewhere in that spread.

Is there still a federal tax break for new windows?

Not for windows placed in service now. The IRS page for the Energy Efficient Home Improvement Credit, updated April 28, 2026 and read 2026-08-11, states the credit was allowed for qualifying property placed in service on or after January 1, 2023 and before December 31, 2025. Plenty of pages still advertise it as live. We publish no amounts, caps or eligibility rules here, because those belong to the IRS and they change. Read it at the agency: the IRS page for this programme.

Does a permit add to what I pay?

Usually there is no permit to add. Chicago's published list of work that does not require a building permit covers, in a residential building up to four stories above grade, "Repairing or replacing (in-kind) an exterior window or skylight in the existing opening", read at chicago.gov 2026-08-11. That describes most Chicago bungalows, two-flats and three-flats. We publish no permit fee figure anywhere on this site, because we have not read one at the agency that charges it. If a quote carries a permit line item, ask which part of your job triggers a permit, then read the permit page.

How many quotes should I get, and what makes them comparable?

Three, on one scope you wrote down, not three scopes written by three salespeople. Convert each to a per-opening number by dividing the total by the number of openings, because that is the only figure that compares across quotes and against the tables on this page. Then ask which specific driver explains any gap: frame material, glass package, whether the opening stays exactly as it is, access above the first floor, and landmark district requirements. A gap explained only as better quality is not explained.