Sound familiar?Cobourg
- The call
- The century home's original mortise lock takes a key the size of a spoon, sticks in humid weather and has worn its strike to a groove. You want a lock that works every day without giving up the old door.

The century home's original mortise lock takes a key the size of a spoon, sticks in humid weather and has worn its strike to a groove. You want a lock that works every day without giving up the old door.
When people say upgrade they usually mean a heavier lock, and there is a real scale behind that word. Builders hardware in North America is graded to ANSI/BHMA standards, with Grade 1 the highest and Grade 3 the lightest, and residential products carry a separate label scoring security, durability and finish. A higher grade certifies stronger performance on the standard's own tests, and moving up often brings a longer hardened bolt, a sturdier housing, pins that resist picking and a strike built to anchor into the framing, though the exact features depend on the model. The locksmith explains which grade fits which door.
Sound familiar?Cobourg
Lock Replacement & Upgrade · Cobourg

Scene 1
Each door has a job, and the hardware should match it. The main entrance needs a keyed deadbolt with an interior thumb-turn so anyone inside can leave without hunting for a key. A door with glass beside it is better served by a reinforced strike and glass protection than by a keyed cylinder on the inside. Interior doors may want passage, privacy or a keyed function, and a lever suits hands that find a knob awkward. Sorting function out first keeps looks from overriding how the door has to work.
Scene 2
New cylinders arrive on random keys, so the locksmith pins them alike on site when you want one key for the house. Each cylinder is removed, the plug slid out on a follower so the springs stay put, and the bottom pins replaced to match a single new key. Existing cylinders that are staying are repinned the same way. Every key is then cut from the new combination, tried in every lock it should open, and any that drag are recut rather than handed over. The result is one key for the front, back and garage doors, and a clear count of how many exist.
Scene 3
New locks ask very little. Once or twice a year, or at whatever interval the lock maker specifies, a puff of the lubricant that maker calls for in the keyway and a few turns of the key keep the pins moving freely, since the wrong product for that cylinder gathers grit instead of helping it. In winter, wipe salt spray off the exterior hardware when it appears, since salt is the finish's main enemy here. Each spring and fall, check that the hinge and strike screws are snug, because wood doors move with humidity and a dropped door makes a good lock feel worn. A key that starts to need coaxing is an early word from the cylinder.
What shapes the quoteCobourg Lock & Key Co.
FeesSame any hour
Often the original case can be kept and given a new cylinder and strike, which keeps the period look and the old door intact. Where the case is beyond service, a filler or conversion plate covers the mortise pocket and lets a cylindrical deadbolt or knob set be fitted without cutting into the door's stile. The locksmith looks at the door before recommending either path, since old doors vary a great deal.
A standard strike is a thin plate held by two short screws in the jamb, and the jamb is what splits when a door is forced. A reinforced strike or strike box is heavier and is fixed with long screws that pass through the jamb into the framing, spreading the load into the structure. It is one of the most effective upgrades on any exterior door and is usually fitted as part of a deadbolt replacement.
It is yours. Some people keep a sound old cylinder as a spare or move a decent deadbolt to a shed or garage door, and the locksmith can rekey it to the house key for that purpose. Worn or damaged hardware is taken away for recycling if you prefer. Either way, the old keys should be gathered up and discarded so nobody confuses them with the new set.
NorthumberlandOntario
Lock Replacement & Upgrade · Alnwick/Haldimand, Brighton, Cramahe, Hamilton, Gosport, East Colborne, Coverdale, Norham, Codrington, Orland, Smithfield
Every square is one home in a hundred.
On-site assessment
The century home's original mortise lock takes a key the size of a spoon, sticks in humid weather and has worn its strike to a groove.
(289) 677-1674, open 24/7.
On-site assessment preferred · (289) 677-1674, open 24/7