Locksmith in TeetervilleKeys that fit.Locks that hold.

Use another exit for now and call. From the inside the fault is usually a bolt pinned by the frame or a bent spindle, both of which the locksmith frees without damage. A main exit door should open from inside without a key or special knowledge, so the repair leaves the door doing exactly that, and if the hardware on it was the wrong type for an exit, a thumb-turn deadbolt is suggested.

What changes depends on the cylinder. Many locks turn when a row of small bottom pins lines up at a precise level, set by the cuts on your key, and during a rekey the locksmith tips those pins out and loads a set that lines up with a different key, cut new for you; some residential cylinders instead reset a side-locking bar without removing any pins. From then on the new key operates the lock and older keys do not, and the hardware on the door stays as it was.

Yes. Sliding doors take a replacement mortise hook lock sized to the rail, often with a keyed exterior, and benefit from a secondary foot bolt or a pin through the frames. French doors are secured by treating the inactive leaf properly with flush bolts into the head and sill, then fitting a deadbolt to the active leaf with a strike into that reinforced edge. Both are routine parts of a residential upgrade.

In most cases, yes. The buzzer, keypad and intercom are generally separate from the mechanical lock or cylinder, so replacing the lock itself does not usually mean replacing the electronic side too. Where the two are connected, such as an electric strike wired to the same frame as a new mechanical lock, the locksmith checks the fit and wiring before starting so the electronic system keeps working once the new hardware is in place. Anything that would need to change is explained beforehand.