Window Replacement & Exterior Services in Frankfort, IL
Since 1986, Frankfort homeowners have trusted Legacy Glass Block & Window Co. for glass block windows, vinyl replacement windows, siding, and entry doors.
All backed by a lifetime warranty and zero money down.
Serving Frankfort Since 1986
-
5-Star Reviewed
-
Lifetime Warranty
-
40+ Years of Excellence
Exterior Upgrades for Frankfort Homes
Frankfort spans Historic Downtown and newer subdivisions, and each needs different exterior work.
-
Energy-Efficient Windows
Argon-filled, Low-E glass in frames sized to your existing openings. Lower bills without changing how the house looks.
Explore Frankfort Window Replacement Services →
-
Secure Glass Block
Mortared glass block seals the basement opening with no sash or frame to pry, so light comes through and water stays out.
Explore Frankfort Glass Block Installation →
-
Siding for Illinois Winters
Storm-rated panels in colors chosen to suit Historic Downtown Frankfort or a newer subdivision equally well.
-
Entry and Patio Doors
Insulated cores and multi-point locks — the first thing a visitor sees, and the first thing a burglar tests.
Newer Frankfort Subdivisions
Frankfort's newer construction sets a high bar, and the exterior is what gets judged first.
-
Prestwick and Frankfort Square
Larger, newer-built homes in one of Frankfort's most competitive housing segments, where buyers and appraisers expect the exterior to match the quality behind it.
-
When Dated Windows Show
Worn siding and original windows stand out fast against neighboring homes that have been kept up.
-
Built for Illinois Weather
Durable, energy-efficient products that hold their finish and their seal through freeze-thaw cycles.
Why Frankfort Homeowners Choose Legacy
-
40+ YEARS IN BUSINESS
Installing across Frankfort and Will County since 1986.
-
5-STAR GOOGLE RATING
Frankfort homeowners consistently rate our exterior work five stars.
-
LIFETIME WARRANTY
Every window and door we install is backed for as long as you own the home.
-
NO SUBCONTRACTORS
Our own crews handle every install, start to finish.
Frankfort Customer Reviews
Our Frankfort Installation Process
-
REQUEST AN ESTIMATE
Tell us about your project and get a free consultation.
-
CUSTOMIZED MEASURING
We carefully measure your exact openings to ensure perfect fits.
-
INSTALLATION
Most Frankfort homes take two to three days, room by room.
-
FINAL INSPECTION
We check every window and seal before we leave.
Get a Free Frankfort Estimate
Easy Financing for Exterior Upgrades
-
Affordable Payments
-
Zero Money Down
-
No-Interest Financing Available
Ready to Upgrade Your Frankfort Home?