top of page

Lemont Window Replacement

Nearly half of Lemont's homes were built between 1990 and 2009.  Those windows are now 20 to 35 years old — right where original insulated glass starts to give out.

Sometimes that means replacing the glass.  Sometimes it means replacing the window.  We'll tell you which one you're looking at before we quote it.

  • Energy-Efficient Windows

  • Lifetime Warranty

  • Maintenance Free

Replacement windows with white trim on a Lemont, IL home

When the Glass Fails Before the Window Does

A window can lose its seal long before the frame is worn out.  On a house built in the 1990s or 2000s, that's usually what's happening.

  • Fogged Glass, Sound Frame

The haze between the panes is a failed seal, not a dirty window.  If the frame and sash are still solid, we replace the glass unit and leave the window in place.

  • What We Replace and What We Don't

We replace fogged and failed glass units.  We don't do frame repair, hardware work, or caulking — when those are what's failing, a new window is the honest answer.

  • Which Windows Went First

Seal failure usually shows up on the sunniest elevation before anywhere else.  We'll quote the units that have gone and tell you which ones are close behind.

Questions about cost or installation?

When Replacement Is the Better Call

New glass fixes a glass problem.  It doesn't fix a window that leaks air at the frame or won't stay open.

  • Drafts at the Frame, Not the Glass

Air moving past the sash and jamb is a frame problem.  Putting new glass into an old frame doesn't change what you feel standing next to it.

  • Worn Balances on 1990s Double-Hungs

When a sash won't stay up, the balance is spent.  Parts for discontinued lines are often long gone, and chasing them costs more than the window is worth.

  • When the Numbers Favor Replacement

Glass unit replacement is the cheaper fix on a window that's otherwise sound.  Once a window has two or three things wrong with it, replacement usually wins — most standard double-hungs run $700 to $1,300 installed.

Why Lemont Homeowners Choose Legacy

  • SINCE 1986

Family-owned and installing windows in Lemont for over 40 years.

  • 5-STAR GOOGLE RATING

Lemont homeowners consistently rate our work five stars.

  • LIFETIME WARRANTY

Backed for as long as you own the home.

  • NO SUBCONTRACTORS

Our own crews handle every install, start to finish.

Lemont Window Replacement Reviews

Our Lemont Window Installation Process

Hear from Lemont homeowners who chose Legacy for their windows.

See Lemont window reviews →

  • FREE ESTIMATE

  • We walk the house, measure every opening, and give you a written price.

  • PANELS BUILT TO YOUR SIZES

Because Lemont openings vary house to house, your windows get built for your opening

  • INSTALL DAY

Our own crews, no subcontractors. Most jobs are completed in one day.

  • FINAL WALKTHROUGH

We haul the debris away and walk the job with you before we leave.

Get a Free Lemont Window Quote

We'll walk the house, measure every opening, and give you a written quote. No pressure, no obligation.

Or send us the details and we will get back to you.

Easy Financing for Exterior Upgrades

  • Affordable Payments

  • Zero Money Down​

  • No-Interest Financing Available

Promotional graphic advertising Zero Money Down and 0% Financing for glass block installation and home exterior window replacement projects by Legacy Glass Block & Window Co. in the Chicagoland area.
bottom of page