Window Replacement in Frankfort, IL
Legacy Glass Block & Window Co. replaces windows in Frankfort homes — from Historic Downtown to the larger builds in Prestwick and Lakewood.
Family-owned since 1986, with our own crews on every job.
Serving Frankfort for 40+ Years
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Whole-Home Pricing
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Lifetime Warranty
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Free In-Home Estimates
Replacing Every Window at Once
Frankfort's larger homes can run twenty-five windows or more. Doing them in one project changes the math.
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Why the Per-Window Cost Drops
One setup, one crew, one delivery. The overhead spread across five windows spreads across twenty-five instead.
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The House Performs as a System
Replace half the windows and the old ones are still the weak point. Your furnace keeps chasing the same drafts.
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One Disruption Instead of Three
Phasing the work means living through setup, dust, and crews three separate times over several years.
One Window or All of Them?
If a single sash broke, fix it. But if you're calling about the third window in two years, the rest are the same age and heading the same way.
We'll tell you which situation you're actually in.
What a Whole-House Install Looks Like
Most Frankfort homeowners have never done this before. Here's what the week actually involves.
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We Work Room by Room
The house is never fully open. Each opening is finished and sealed before we move to the next.
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Most Homes Take Two to Three Days
A twenty-five window job isn't a one-day install. You get the real number before you sign anything.
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You Keep Living There
We don't need the house empty. Rooms come back into use the same day we finish them.
Why Frankfort Homeowners Choose Legacy
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40+ YEARS IN BUSINESS
Installing windows across Frankfort and Will County since 1986.
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5-STAR GOOGLE RATING
Frankfort homeowners consistently rate our window replacement five stars.
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LIFETIME WARRANTY
Every window we install is backed for as long as you own the home.
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NO SUBCONTRACTORS
Our own crews handle every install, start to finish.
Frankfort Window Replacement Reviews
Our Frankfort Window Installation Process
Get a Free Frankfort Window Quote
Hear from Frankfort homeowners who chose Legacy for their window replacement.
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REQUEST AN ESTIMATE
We walk the house with you and count every opening.
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CUSTOMIZED MEASURING PROCESS
Every window is measured individually. No two openings in an older home match.
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INSTALLATION
Most Frankfort homes take two to three days, room by room.
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FINAL WALKTHROUGH
We check every lock, seal, and sash with you before we leave.
Easy Financing for Exterior Upgrades
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Affordable Payments
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Zero Money Down
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No-Interest Financing Available
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