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Glass Block Window Replacement

Glass block window replacement in Milwaukee

Glass block lasts a long time, but it is not forever. Mortar joints crack, blocks chip or break, and the caulk around the panel fails after years of Milwaukee freeze and thaw. Sometimes a panel can be repaired; sometimes it makes more sense to replace it. Tell us what you are seeing and a local contractor will follow up with a free written estimate.

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Covered under glass block window replacement

  • Cracked or broken individual blocks
  • Crumbling or missing mortar joints
  • Leaks and water stains around a panel
  • Loose or shifting panels
  • Converting old windows to glass block
  • Updating dated patterns or adding vents
  • Resealing the exterior perimeter

Repair or replace?

A single cracked block or a short run of bad mortar can sometimes be fixed in place. If several blocks are cracked, the panel has shifted, or water is getting in around the whole opening, a new panel is often the cleaner fix. A contractor can look at the panel and the surrounding frame and masonry and tell you which makes sense.

Signs your glass block needs attention

  • Cracks running through blocks or mortar joints
  • Water stains or dampness under the window inside
  • Gaps where the panel meets the wall
  • Panels that rattle or move when pushed
  • Frost or ice building up on the inside in winter

Converting other windows

If you have old basement, bathroom or stairwell windows and want the privacy and security of glass block, the contractor removes the old unit, prepares the opening and sets a new panel. See new glass block windows.

Glass Block Window Replacement in Milwaukee, WI

Available across Milwaukee, with requests from Wauwatosa, West Allis, Shorewood, Whitefish Bay, Greendale, Greenfield, Oak Creek, Franklin, Brookfield, Cudahy welcome. See areas served.

Frequently asked questions

Can one broken glass block be replaced?

Sometimes. It depends on how the panel was built and the condition of the surrounding blocks and mortar. Send a description or note the size in your request and the contractor will advise.

Why is my glass block window leaking?

The usual causes are failed exterior caulk, cracked mortar joints or a problem with the sill or frame below the panel. A site visit will show which.

Can I replace glass block with a regular window?

Yes, many contractors can do that too, especially when a basement needs an egress window. Mention it in your notes. See glass block vs. regular windows.

Related reading

How Glass Block Window Installation Works in MilwaukeeWhat happens during a glass block window install, how long it tends to take, and the questions Milwaukee homeowners should ask a contractor.Glass Block Windows Cost in Milwaukee: What Drives the PriceWhat goes into a glass block window estimate in Milwaukee, the factors that raise or lower cost, and what a fair written quote should include.

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Glass Block WindowsBasement Glass Block WindowsBathroom & Privacy Glass Block