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CliftonLocksmith Pros · StamfordOpen 24/7(289) 271-0666Request a visit
Detached satin-nickel lever hardware, tubular latch and strike plate on a wooden workbench. — Lock Replacement & Upgrade, Stamford

Change or rekey · Stamford

Lock Replacement & Upgrade in Stamford

Someone tried the back door while you were away. The jamb is splintered around the strike, the bolt is bent, and the knob turns with a grinding feel.

Lock Replacement & Upgrade

In plain words

Not every complaint about a lock ends in a new lock, and a good visit says so. A cylinder that turns stiffly may only need cleaning and fresh pins; a lost key calls for rekeying, which keeps the hardware and changes the key; a loose lever often wants a tightened spindle. Replacement earns its place when the mechanism is worn through, the housing is damaged, the grade was never adequate for the entrance, or you want a different function, finish or a keypad. The locksmith lays the three routes side by side so the choice rests on what the door needs rather than on what is in the van.

Sound familiar?

The keys the seller handed over came in a sandwich bag: six unlabelled copies for two locks of different makes from different decades. You have no idea how many more copies exist or who is holding them.

How the visit goes

Stamford

How the visit goes

  1. The rest of the openings

    One failing lock is often the loudest of several, so the locksmith takes a short tour. The back door, the garage man-door, a basement walkout, a sliding patio door and a storm door all count, and so does the door from the garage into the house, which is often the lightest lock on the property. Each is noted for grade, condition and whether it has a deadbolt at all. You are not obliged to do them all at once; the value of the tour is a clear list ranked by what matters most, so the first replacement goes where it makes the largest difference.

  2. Fitting the latch or bolt to the door

    Most modern latches and bolts adjust between the two common backsets, so the unit is set to the measured figure and slid into the edge bore. A spring latch goes in with its bevel facing the strike, while a deadbolt is oriented the way its markings or instructions call for, not by that bevel rule. The faceplate should sit flush in its mortise; where the old cut-out differs in shape or size, the mortise is trimmed with a sharp chisel, or a round drive-in collar is used where the door was prepared that way. The bolt is checked to travel freely before anything else goes on, since a bolt that binds in the door will bind under the key too.

  3. A clear plan for the remaining doors

    Most households do not replace every lock in one visit, and you leave with a short list of what is left, in order of importance. Typically the front door and the garage-to-house door come first, then the back and side doors, then the patio slider and interior sets. Because the key plan has been settled, any lock added later can be pinned to the same key, so the house stays on one key as the work continues. Finishes and styles are recorded so future hardware matches. The first visit sets the standard; the rest of the house can follow when it suits you.

Lock Replacement & Upgrade

In the van

  • Knob or lever entry set
  • Manufacturer-approved cylinder lubricant
  • Boring jig and hole saws
  • Key blanks and key cutter
  • Reinforced strike plate and strike box

What affects the quote

Same fees day, night or weekend

  1. 1Older and mortise hardware

    Servicing an original mortise case, sourcing a compatible cylinder or fitting a conversion plate on a century door involves more assessment and fitting time than a standard cylindrical replacement.

  2. 2Special-order hardware

    Most standard locks come from the van. A specific style, an unusual finish or a restricted system may need ordering, which affects scheduling and is noted in the quote rather than discovered on the day.

  3. 3Keying alike and rekeying

    Pinning new cylinders to one key and repinning existing locks to match is work per cylinder, so a whole house on a single key is quoted by the number of locks joining it.

What to have ready

0 of 3 ready

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Lock Replacement & Upgrade: questions

What is a reinforced strike, and is it worth adding?

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.

What does a higher grade of lock actually give me?

Grades follow ANSI/BHMA standards, with Grade 1 the highest and Grade 3 the lightest, and residential hardware carries a separate label that scores security, durability and finish. The grade reports how the lock performed on the standard's own operational, strength and security tests; a higher grade often comes with a longer bolt, a sturdier housing, pins that resist picking and a strike built to anchor into the framing, but those features are worth confirming on the specific model rather than assumed from the grade alone.

How long does a lock replacement take?

A straightforward like-for-like deadbolt or knob set on a standard door is often a matter of an hour or less including testing. Add time for a reinforced strike, for keying several locks alike and cutting keys, for a smart lock's setup and pairing, and for repairing a split jamb or adapting an older door. When several entrances are done together, the locksmith gives a realistic window before starting so you can plan the day.

Change or Rekey Locks

Lock Replacement & Upgrade near you

For people in Stamford who like to know before they call: these pages describe each lock service in detail, from the routine rekey to the less common safe opening or master key design. They explain the steps, the parts involved and the decisions you may be asked to make on the day.

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