Window replacement cost in Chicago

Computed from 379 recent building-permit filings in Chicago, IL — what people actually declared, not survey guesses.

Typical low · P25$5,000
Median$10,000
Typical high · P75$28,418

✓ Verified from 379 recent building-permit filings in Chicago, IL

Data refreshed July 2026

The short answer: a typical window replacement in Chicago costs around $10,000, with half of all projects landing between $5,000 and $28,418. If a quote falls well outside that range, it isn't automatically wrong — but it deserves an explanation you can understand.

Before you spend on a window replacement

💸 What drives the cost

  • Count and size, frame material (uPVC → timber roughly doubles), and glazing spec
  • Installation quality matters more than glass spec for real-world performance — flashing and sealing are where cheap jobs fail

✂️ How to spend less

  • Do the whole house or a full elevation at once — per-window price drops significantly with volume
  • Mid-range double glazing well installed beats premium triple glazing badly installed

🚩 Red flags when hiring

  • High-pressure in-home sales with a "sign tonight" discount — a signature move of overpriced window firms

Window replacement in other cities

Other projects in Chicago

Where this number comes from

Every figure on this page is computed from declared valuations on building permits published by Chicago's open-data portal. We report the 25th percentile, median and 75th percentile of 379 recent residential filings — never a single-point "average". Declared values are what applicants file, not final invoices, so treat the range as planning guidance rather than a quote. Full methodology →

Questions people ask

How much does a window replacement cost in Chicago?

Based on 379 recent building-permit filings in Chicago, the median declared cost is $10,000. Half of all projects fall between $5,000 and $28,418.

Are these figures quotes?

No. Permit valuations are what applicants declare when filing, not final invoices. Treat the range as planning guidance and a sanity-check against the quotes you receive.

Why is the range so wide?

Because identical-sounding projects legitimately differ in size, specification and site conditions. That is why we publish the 25th percentile, median and 75th percentile instead of a single misleading "average" — you can see where a quote sits in the real distribution.

Planning something else, or somewhere else? Request a city or project — requests decide what we ingest next.