---
title: Window Replacement in Oak Park, IL | Illumination Windows
description: Replacement windows for Oak Park's Prairie, Victorian and bungalow homes, from a River Forest company next door. Fixed price, lifetime warranty.
---

[![](https://www.illuminationwindows.com/hs-fs/hubfs/Job%20Photos/iw-logo-mark.png?width=40&height=40&name=iw-logo-mark.png) Illumination Windows](https://www.illuminationwindows.com/?hsLang=en)

[(773) 964-4260](tel:+17739644260) [Claim My $500 Off](https://www.illuminationwindows.com/window-replacement-oak-park-il#quote)

[Services](https://www.illuminationwindows.com/services?hsLang=en) [Our Process](https://www.illuminationwindows.com/our-process?hsLang=en) [Service Area](https://www.illuminationwindows.com/service-area?hsLang=en) [Reviews](https://www.illuminationwindows.com/reviews?hsLang=en) [About Us](https://www.illuminationwindows.com/about?hsLang=en) [Journal](https://www.illuminationwindows.com/journal?hsLang=en)

[Services](https://www.illuminationwindows.com/services?hsLang=en) [Our Process](https://www.illuminationwindows.com/our-process?hsLang=en) [Service Area](https://www.illuminationwindows.com/service-area?hsLang=en) [Reviews](https://www.illuminationwindows.com/reviews?hsLang=en) [About Us](https://www.illuminationwindows.com/about?hsLang=en) [Journal](https://www.illuminationwindows.com/journal?hsLang=en) [Claim My $500 Off](https://www.illuminationwindows.com/window-replacement-oak-park-il#quote)

Window Replacement · Oak Park, IL

# Claim *$500 off* your Oak Park window replacement.\*

Owner-operated window replacement for Oak Park homeowners, from our base next door in River Forest. A written fixed price, a lifetime warranty, and never any pressure.

[5.0 on Google](https://www.illuminationwindows.com/window-replacement-oak-park-il#reviews)

- No-pressure consultation
- Written fixed-price quote
- Lifetime warranty
- Fully insured

21

Months — no interest if paid in full†

Financing available on approved credit.

†Subject to credit approval.

## Claim $500 off your window project\*

Tell us a little about your home. We'll call to set up your free, no-pressure consultation.

Name

Phone

Email (optional)

Town / City

Number of windows Choose one 1–3 windows 4–8 windows About half the house Whole house

By submitting your information, you consent to us contacting you via phone, email, and SMS for the purpose of providing you with information about our products and services. Standard message and data rates may apply.

Claim My $500 Off

\*With purchase of 4 or more windows.

No obligation. No pressure. Your information is never shared.

## Your $500 off is reserved.

Thanks — we've got your details and will call you shortly to set up your free, no-pressure consultation.

Can't wait? Call us now.

[(773) 964-4260](tel:+17739644260)

Reviews

## What our neighbors say.

5.0

[Read more reviews →](https://www.illuminationwindows.com/reviews?hsLang=en)

> “Greg was incredible. He consulted with my wife and I and ensured we got everything we were hoping for! He really pulled out all the stops for us and I can't recommend him and John enough!”

Vaishika R.

Chicago, IL · Google review

> “We had a fantastic experience with Illumination Windows. They were knowledgeable, friendly, and attentive. The windows we chose are high quality, reasonably priced and manufactured locally in Illinois. The team arrived on time, worked efficiently, and treated our home with great care. The difference is remarkable: our home is quieter and more comfortable.”

Rich and Judy D.

Elmhurst, IL · Google review

> “I had a great experience with this window installation company! The owner was extremely helpful and always quick to respond. The installation was done efficiently and with great care, everything was clean, quick, and professional. It's clear they take pride in their work.”

Natalia N.

Elmhurst, IL · Google review

## Recent work

![Two-story brick home in Lisle, IL with new white replacement windows, including an arched-top window above the front entry](https://www.illuminationwindows.com/hs-fs/hubfs/Job%20Photos/lisle-brick-home-window-replacement-arched-top-400.webp?width=400&height=267&name=lisle-brick-home-window-replacement-arched-top-400.webp)

Whole-home replacement · Lisle, IL

![Five-panel bow window with stained wood casement sashes and a window seat, replaced by Illumination Windows in Lisle, IL](https://www.illuminationwindows.com/hs-fs/hubfs/Job%20Photos/lisle-bow-window-replacement-stained-wood-casements-400.webp?width=400&height=302&name=lisle-bow-window-replacement-stained-wood-casements-400.webp)

Bow window · Lisle, IL

![Back of a two-story home in Naperville, IL with new white double-hung windows and a bay window, labels still on the glass after installation](https://www.illuminationwindows.com/hs-fs/hubfs/Job%20Photos/naperville-double-hung-and-bay-window-replacement-400.webp?width=400&height=267&name=naperville-double-hung-and-bay-window-replacement-400.webp)

Double-hung and bay windows · Naperville, IL

![Bedroom in a Naperville, IL home with new white sliding and double-hung replacement windows](https://www.illuminationwindows.com/hs-fs/hubfs/Job%20Photos/naperville-bedroom-slider-and-double-hung-windows-400.webp?width=400&height=301&name=naperville-bedroom-slider-and-double-hung-windows-400.webp)

Slider and double-hung · Naperville, IL

Oak Park, IL

## Window replacement for Oak Park homes

Most Oak Park homes are around a hundred years old, and their windows rarely come in stock sizes. We custom-make every window to its opening and match grille patterns and proportions, so your home keeps its character. If you're in one of Oak Park's historic districts, we'll check what approval your windows need before anything is ordered.

- Custom-made to every opening
- Grille patterns matched to your home
- Historic-district rules checked up front

[Claim My $500 Off](https://www.illuminationwindows.com/window-replacement-oak-park-il#quote)

Why Illumination

## How we work vs. what's typical.

Features

The Illumination Way

What's typical

Estimate

Illumination**No hidden charges, ever.** What you sign is what you pay.

TypicalQuotes that creep up once work starts.

Coverage

Illumination**Genuine lifetime warranty.**

TypicalOne year of labor coverage. Then you're on your own.

Consultation

Illumination**No pressure. No deception.** Ever.

TypicalHigh-pressure sales.

Consultant

Illumination**Advised by the owner himself.** He oversees your project from start to finish. On the job, he's there supervising or lending a hand.

TypicalSalespeople who've often never installed a window, and who you'll never see again once you've paid.

Customization

Illumination**Custom sized** to fit your home perfectly.

TypicalStock sizes with loose fits.

Installation

Illumination**A tight-knit team** of expert carpenters.

TypicalThird-party subcontractors.

Customer service

Illumination**A call with the owner.**

TypicalVoicemails and a 1-800 number.

Questions

## Window replacement in Oak Park: common questions

Do I need village approval to replace windows in Oak Park?

If your home is a landmark or in one of Oak Park's historic districts, exterior window changes can need a Certificate of Appropriateness from the Historic Preservation Commission. We'll confirm what your address needs before anything is ordered.

What does the $500 offer include?

You get $500 off your window replacement when you replace 4 or more windows. We'll confirm it in writing at your free consultation.

Do you offer financing?

Yes. Financing is available with no interest if paid in full in 21 months, subject to credit approval.

## Ready for new windows in Oak Park?

A free, no-pressure consultation at your home.

[Claim My $500 Off](https://www.illuminationwindows.com/window-replacement-oak-park-il#quote) [Call (773) 964-4260](tel:+17739644260)

\*$500 off with purchase of 4 or more windows.

![](https://www.illuminationwindows.com/hs-fs/hubfs/Job%20Photos/iw-logo-mark.png?width=36&height=36&name=iw-logo-mark.png)Illumination Windows

Owner-operated window replacement for Chicago-area homeowners.

[(773) 964-4260](tel:+17739644260) [Greg.Saiki@illuminationwindows.com](mailto:Greg.Saiki@illuminationwindows.com)

River Forest, IL · Mon–Fri 8am–6pm

[Services](https://www.illuminationwindows.com/services?hsLang=en) [Our Process](https://www.illuminationwindows.com/our-process?hsLang=en) [Reviews](https://www.illuminationwindows.com/reviews?hsLang=en) [Service Area](https://www.illuminationwindows.com/service-area?hsLang=en) [About Us](https://www.illuminationwindows.com/about?hsLang=en) [Journal](https://www.illuminationwindows.com/journal?hsLang=en) [Free Quote](https://www.illuminationwindows.com/free-quote?hsLang=en)

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