How to Repair Casement Windows

October 11, 2010

When repairing casement windows you may encounter: sticking hinges, cranks that don't turn, layers of paint keeping windows from closing all the way, and broken glass. Here's how to repair casement windows when confronted with these challenges.

Casement Windows with Rusty Hinges

Hinges on casement windows are often on the outside and vulnerable to the weather. They can rust and stick to the point that a casement window will no longer swing out. Just clean them and spray them with some WD-40. Worse case: you will need to replace the hinges.

When Your Crank is Broken

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If the casement window crank won't turn smoothly, you may need to clean out the mechanism. Taking apart the mechanism and cleaning it with a mild detergent, or soaking it in vinegar, may solve any problems that exist. If there are pieces that need to be replaced, you can contact the manufacturer to get the part or parts that you need, or replace the whole crank mechanism.

Repairing Casement Windows with Thick Paint Layers

Layers of paint make the casement windows seem to grow. There is no substitute for scraping and sanding paint from the bottom of the casement in order to make your repair on a clean surface. Be careful to wear a mask and use special precautions if the paint is very old - it may contain harmful lead. Touch up paint may be required after completing your repair.

When the Actual Window Breaks

Remove all broken glass first, and pull out the shards that might be stuck in the frame. Buy a new piece of glass measured just 1/16" to 1/8" smaller than the window frame in both directions. Place it in the correct position and, using splines or spring clips, use caulking or glazing compound to keep it in place.
Take good care of your window hardware and repairing casement windows may continue to be an open and shut case.

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