Don't knock large icicles off your gutters, but be aware they may be a sign of ice dams forming. ... Don't try to remove thick, long icicles from your gutters, experts say. You could wind up injuring yourself - falling chunks of ice are unpredictable - or damaging to your home. Leave them be, but keep an eye on them.

Should You Leave icicles alone?

Experts say to leave the icicles alone if you can. If you must knock them down, take precaution. ... It's important to remember icicles can not only cause damage to your home, but also could cause injury. Be sure if you're heading outside to be aware and to never stand under any icicles.

Is it bad to have icicles on your house?

The obvious dangers are falling icicles and gutters being pulled down, but more importantly the water building up behind the icicles can get into your house. This can rot the wood in your roof and attic, possibly without your knowledge, and it also can seep through and ruin ceilings, walls, and windows.