A window lock does two jobs. It keeps the sash shut against someone outside, and it pulls the meeting rails together so the weatherstrip can work. When the cam is stripped, the tilt latch is stuck, or a casement crank no longer draws the sash in, you get both a security gap and a draft. Dynamic Innovations & Finishes repairs sash locks, multipoint locks, and operators without replacing the window.
Symptoms homeowners notice
- The lock turns and never grabs, or it grabs so hard the sash bows.
- Tilt latches will not retract, so the sash cannot be tilted for cleaning, or they will not hold, so it falls in.
- A casement handle spins, or the crank moves and the sash stays put.
- A ground-floor window you no longer trust at night.
What is actually failing
Double-hung locks are a cam and a keeper. The cam rounds off, or the keeper screws strip in a vinyl sash wall. Tilt latches are small die-cast pieces that crack at the pivot. Casement and awning windows add an operator arm and, on better units, a multipoint lock that has to pull the sash to the weatherstrip before the cams throw. If the sash is out of square or the hinges have sagged, a new lock will still miss. We look at the fit first. On a casement, a dead operator and a dead lock are often the same age, and we quote them together when both are gone. Parts are matched to the sash groove and the hole spacing so we are not drilling a second, wrong pattern in a vinyl profile that will never look right.
Ground-floor and balcony windows get the security conversation. A lock that needs a trick to engage will be left open. The repair has to be something a person can use every night with one hand.
Our repair process
We cycle every lock on the window, not just the one you noticed, because the partner sash is often a season behind. Keepers are moved before hardware is condemned. Failed cams, latches, and operators are replaced with the closest serviceable match, screws into solid material, and the sash is adjusted so the weatherstrip compresses when the lock is thrown. Casement arms are checked for play at the track. We leave the window locking, tilting, or cranking the way the hardware was meant to, and we show you the motion before we go.
Why repair beats replacement
Lock sets are hardware, not a window. Replacement crews use a broken latch as the opening line of a whole-house bid. The sash is usually fine. A cam, a keeper, or an operator puts the opening back in service and pulls the rails together so the draft you blamed on “old windows” often quiets down the same day. If the operator failed because the sash is rotten at the hinge, we will not hide that behind a new crank.
Questions about window locks
Can a lock repair stop a draft?
Often, yes. The lock is what pulls the meeting rails into the pile. A lock that does not pull leaves a slot of air even when the vinyl looks intact.
Do you repair multipoint locks on casements?
Yes, when the gear and the cams are serviceable or replaceable. If the lock bar is bent inside the sash, we say so rather than selling a handle that will not throw.
The tilt latch is stuck closed. Can you free it?
We try. Corrosion and a broken spring are common. If the body is cracked, replacement is faster than a latch that will stick again next week.
Is this a same-day repair?
Most sash locks and tilt latches are. Unusual multipoint gear sometimes has to be ordered, and we will know that from the brand and a photo.
Ready to schedule? Request a repair estimate or call (708) 475-1095.