I think everyone's wrong about using a hammer for stuck window frames

Honestly, I tried the 'gentle tap' method on a 1970s aluminum frame in my Denver house last month and it just bent the track. I ended up using a flat bar and a block of wood to pry it up evenly from three points, which took about twenty minutes but didn't wreck anything. People act like a hammer is the universal fix, but on old soft metal it's a sure way to make a bigger problem. Has anyone else found a better tool for this?

3 comments

3 Comments

nina_harris391mo ago

My uncle's 1950s Philly row house had a window so stuck a flat bar just snapped the wood trim. A rubber mallet on the sash corners popped it free in two hits.

gracea191mo ago

Yeah, Evan's point about the flat bar slipping is so real. My buddy tried to pry a window in his old apartment and the bar shot right into the pane, just a total mess of glass and regret. He ended up using a hair dryer to soften the old paint, then a putty knife to cut the seal before even touching a hammer. Sometimes you gotta warm things up first, you know, especially with all those old paint layers acting like glue.

evan_jenkins1mo ago

My grandpa taught me to use a ball peen hammer on a block of wood for stuck sashes in his Chicago bungalow. That method has never failed me across three different old houses. A flat bar can gouge the frame or slip and crack the glass. Sometimes you need a sharp impact to break decades of paint seal, and a controlled tap with the right cushion is way safer than prying. Your bent track sounds like you just hit it wrong.