Windows · Common problems · Updated November 2026
Window Won't Open or Stay Open: What to Check
A window that will not open, or will not stay up once opened, is usually a hardware or paint problem rather than a structural one. Every bedroom window should open easily, because it may be an emergency exit.
Likely causes
| Symptom | Common cause |
|---|---|
| Sash will not budge | Painted shut, swollen wood, or a lock that is engaged |
| Sash slides down after opening | Broken balance spring or cord (double-hung windows) |
| Casement crank spins or is stiff | Stripped or worn crank operator |
| Sash binds partway | Dirty tracks, swelling from humidity, or a frame out of square |
What you can safely check
- Confirm all locks and any vent stops are released.
- Clean the tracks and use a dry silicone lubricant (not oil, which attracts dirt).
- For a painted-shut sash, carefully score the paint line with a utility knife.
- Do not force a sash that will not move; glass can crack.
When to call a pro
Call for broken balances, cranks or hinges you cannot replace, frames that are out of square, or if a bedroom window cannot be opened in an emergency. A pro can tell you whether replacement parts are available or the window should be replaced.
Cost figures are national ranges from the sources listed in our windows cost guide, not a quote from FixFinch or any contractor. This article is general information to help you decide on next steps. It is not an inspection or professional advice; a qualified pro who sees the problem in person can tell you what is actually going on. Calls connect you with an independent service provider in our network. FixFinch is not a contractor and does not perform the work.