HomeImprovement.Reviews
🪟 Top 5 · 2026📍 Naperville, IL

The 5 best window replacement companies in Naperville.

Quieter, warmer, and the AC finally keeps up.

Chosen by our review committee · Google ratings as of November 9, 2026 · Companies cannot pay to be listed

Window Replacement Companies at work
1
Countryside Roofing Siding and Windows, Inc.
★★★★★ 5.0 · 99 reviews

Old windows leak air, fog up and rattle. The best window replacement companies in Naperville measure precisely, install with proper flashing and insulation, and stand behind both the glass and the labor.

  1. 1

    Countryside Roofing Siding and Windows, Inc.

    🏆 Best window replacement company in Naperville
    ★★★★★ 5.0· 99 Google reviews

    Every one of Countryside Roofing Siding and Windows, Inc.'s 99 Google reviews averages out to a flawless 5.0. A solid body of feedback for a local window replacement company. Based right in Naperville, it takes the top spot among window replacement companies in Naperville this year.

    📍 633 E Ogden Ave, Naperville, IL 60563
  2. 2

    Window World Western Chicago

    ★★★★★ 4.9· 410 Google reviews

    With 410 Google reviews averaging 4.9, Window World Western Chicago has earned its place here. That many reviews is hard to fake and harder to keep that high. Based in Lisle, it lands at #2 on our Naperville list.

    📍 4646 Western Ave, Lisle, IL 60532
  3. 3
    ★★★★★ 4.9· 358 Google reviews

    With 358 Google reviews averaging 4.9, Window Repair & Glass Replacement Service has earned its place here. That many reviews is hard to fake and harder to keep that high. Based right in Naperville, it rounds out the top three for Naperville.

    📍 800 W 5th Ave Ste 106D, Naperville, IL 60540
  4. 4
    ★★★★★ 5.0· 56 Google reviews

    DG Windows Replacement holds a perfect 5.0 on Google across 56 reviews. A solid body of feedback for a local window replacement company. Based in Downers Grove, it rounds out the top four for Naperville.

    📍 44932 Fairview Ave, Downers Grove, IL 60515
  5. 5
    ★★★★★ 4.9· 157 Google reviews

    Everlast Exteriors of Illinois Inc carries a near-perfect 4.9 Google rating from 157 reviews. That many reviews is hard to fake and harder to keep that high. Based right in Naperville, it rounds out the top five for Naperville.

    📍 4520 Sunningdale Dr, Naperville, IL 60564
How this list was made

Picked by people who read the reviews.

Our review committee researched window replacement companies serving Naperville and the surrounding area, read consumer reviews across the web, and settled on these five. We look at how many people have reviewed a company, what they say, and how the company holds up over time. We keep the full recipe to ourselves so it cannot be gamed. Google ratings shown are as of November 9, 2026. No company paid to be here, and none can. More on how we choose →

Before you sign

How to hire a window replacement company in Naperville

1

Compare the U-factor and SHGC ratings, not just 'energy efficient' claims.

2

Ask whether it is a full-frame or insert (pocket) replacement, and why.

3

Get the frame warranty, glass seal warranty and labor warranty in writing.

4

Be wary of high-pressure sales with 'today only' pricing.

Good to know

Window Replacement Company questions, answered

How long do replacement windows last?

Quality vinyl or fiberglass windows last 20 to 30 years. Seal failure (fogging) is the usual end of life.

Vinyl, fiberglass or wood?

Vinyl is the value choice. Fiberglass is stronger and holds paint. Wood looks best inside but needs more care outside.

How long does installation take?

A crew can often replace 8 to 12 windows in a day with insert replacements. Full-frame jobs take longer.

For the winners

On this list? Show it off. 🎖️

Paste this on your website. The badge is free and links back to this page so customers can check for themselves.

#1 Window Replacement Company in Naperville, IL 2026
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#2 Window Replacement Company in Naperville, IL 2026
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#3 Window Replacement Company in Naperville, IL 2026
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#4 Window Replacement Company in Naperville, IL 2026
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#5 Window Replacement Company in Naperville, IL 2026
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