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Penny Window, St. Louis windows and doors since 1953
A new insulated glass unit and window sash on our shop workbench
Alton, IL

Windows & doors in Alton.

A historic river town on the bluffs above the Mississippi, where windows worth saving get repaired and the rest get replaced right.

The windows Alton asks for

We're a St. Louis window and door company that's been family-owned since 1953. We bring the same crews and the same standard to Alton that we hold at home, whether it's a single window, a new front door, or a whole-home replacement.

Alton climbs the bluffs above the Mississippi, and its streets hold some of the oldest housing in the metro: brick Victorians on Christian Hill, frame homes through Middletown and Upper Alton. Houses like these deserve an honest answer, not an automatic sales pitch. If a foggy pane or a worn sash can be repaired, we repair it. When a window is truly done, we replace it with one sized to the original opening so the house keeps its character.

Double-hung windows

The St. Louis classic: both sashes open, both tilt in to clean.

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Casement windows

Crank-out windows that seal the tightest and catch a breeze.

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Sliding windows

Horizontal sliders that glide open easy, great for wide openings.

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Bay & bow windows

Projecting windows that add light, a view, and a little room.

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Picture windows

Fixed windows that frame a view and flood a room with light.

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Basement & hopper windows

Tough, tilt-in basement windows that seal out water and air.

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A technician repairing a window at the Penny Window shop in St. Louis
Most requested in Alton

Glass & window repair in Alton

Foggy glass, broken panes, and worn hardware fixed in Alton's older homes. We repair what is worth saving and tell you plainly when it is not.

Explore glass & window repair

Why Alton calls us

  • Family-owned and operated since 1953
  • Free in-home estimates
  • No subcontractors, our own install crews
  • Limited lifetime warranty
  • Most installations completed in 1 to 2 days

Areas we serve in and around Alton

  • Upper Alton
  • Middletown
  • Christian Hill
  • Great River Road corridor

Nearby towns we cover

We install windows, doors, and siding across the metro. Just outside Alton, we also work in:

Ready for new windows in Alton?

Tell us what you’re thinking about and we’ll set up a free in-home estimate. Our own crews, a straight price, and a limited lifetime warranty.

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