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Detached satin-nickel lever hardware, tubular latch and strike plate on a wooden workbench. — Lock Replacement & Upgrade, Mississauga

Change or rekey · Mississauga

Lock Replacement & Upgrade

The brass handleset has gone blotchy and green where the winter salt reaches it, and the coating on the deadbolt is lifting in flakes. It still locks, but it looks tired beside the fresh paint on the door.

Call now · open 24/7(289) 805-2659

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In plain words

A replacement lock has to fit holes that already exist, and that is where the visit begins. The locksmith measures the backset, the distance from the door edge to the centre of the bore, which on most doors is 60 or 70 millimetres, checks the cross-bore diameter and edge-bore size, notes door thickness and handing, and looks at the strike cut-out. Most residential hardware is made to these standard preparations, so the new lock usually drops into place with no new drilling. Where a mortise lock or a thick door departs from the norm, filler plates, extension kits or a careful new bore bring the door up to standard.

Sound familiar?

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. Everything held, barely, and you want hardware that would do better next time.

How the visit goes

Lock Replacement & Upgrade · Mississauga

How the visit goes

Person in a cap and glasses holding an old mortise lock plate against a bare slot in a wooden door edge.
  1. 1

    Exposure, weather and finish

    The locksmith looks at where the door lives. A side entrance beside a salted driveway, a south-facing front door in full sun and a sheltered porch each treat a finish differently, and the residential hardware label scores finish durability as its own category for exactly this reason. Existing hardware is examined for pitting, peeling and green bloom, which shows how hard the spot is on metal. That guides the choice between a PVD brass, a satin nickel, a powder-coated black or a stainless product, and whether a storm door or a small hood would help. Matching the rest of the entrance comes last, once the finish will survive the location.

  2. 2

    Mounting the cylinder and the interior side

    The exterior housing goes on with its tailpiece passing through the slot in the bolt, oriented as the maker specifies so the keyway sits upright. The interior thumb-turn or rose is offered up and the two long mounting screws are drawn down evenly by hand until firm, not crushed; zinc housings distort and threads strip under a drill, and an over-tight rose makes a lever heavy forever. On thick doors, extension kits bring screws and spindle to length. A knob or lever set adds the latch spindle and the spring cage, and the handle is checked to return crisply to level before the trim is snugged.

  3. 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.

In the van

  • 75 millimetre strike and hinge screws
  • Reinforced strike plate and strike box
  • Graded deadbolt
  • Manufacturer-approved cylinder lubricant
  • Adjustable latch or bolt

What affects the quote

  1. 1

    Finish and style

    Standard satin nickel or brass is one line; specialty finishes, matched suites across several doors and designer handlesets are others. The finish you choose for exposure and looks is priced as the maker prices it.

  2. 2

    Older 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.

  3. 3

    Number of doors

    One back door is a small visit; the front, back, side, garage man-door and patio slider together are a longer one, though several doors done at once share the travel and setup.

Same fees day, night or weekend.

Have it ready

Before you call · 0 / 3

(289) 805-2659

Lock Replacement & Upgrade: questions

Advice · (289) 805-2659

Is a smart lock a good upgrade, and what happens when the batteries run out?

For a household with many people coming and going, codes that can be added and removed are a real convenience. Behind the keypad it is still a deadbolt, so grade and strike matter as much as ever. Batteries typically last months and the lock warns you as they fade; depending on the model, a dead battery is handled with a mechanical override key or with external contacts for a temporary power source, so it is worth confirming which one your lock uses.

Will a new lock fit the holes already in my door?

Usually, yes. Most residential doors are prepared to standard sizes, a 54 millimetre cross bore and a backset of 60 or 70 millimetres, and most modern hardware adjusts between those backsets. The locksmith measures before choosing, so the new lock is matched to the door rather than the other way around. Where an older mortise lock or an unusual bore is found, filler plates, extension kits or a carefully jigged new bore bring the door to standard.

Should I rekey my locks or replace them?

Rekey when the hardware is sound and the problem is the key: a lost copy, a move, or too many keys for one house. Replace when the mechanism itself is worn, the housing or bolt is damaged, the grade was never suitable for the entrance, or you want a different function, finish or a keypad. Many visits do both, keeping good locks and rekeying them while replacing the tired ones, all to one key.

Lock Replacement & Upgrade near you

Peel, Ontario

Mississauga information

Town
Mississauga, Peel, Ontario
In business
31 years
Hours
Open 24/7 · nights, weekends and holidays, same fees
Visits
On-site assessment preferred. Request a visit or call.

What the census means at the door

38%

Homes of every age. About 38% of homes in Mississauga were built in 1980 or earlier, according to the 2021 Census.

In neighbourhoods with a mix of older and newer homes, the finishes on the doors vary widely: aged brass, satin nickel, matte black. A locksmith serving such an area keeps a range of finishes so replacement hardware suits each house.

37%

Single-detached houses make up about 37% of homes in Mississauga (2021 Census).

Where housing is mostly apartments and condos, mailbox locks are a regular call. A worn or lost mailbox key is a small job that a locksmith handles alongside the suite door, and the new lock comes with fresh keys cut on the spot.

Source: Statistics Canada, 2021 Census of Population

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Open 24/7

Request a visit

The brass handleset has gone blotchy and green where the winter salt reaches it, and the coating on the deadbolt is lifting in flakes.

Call now · open 24/7(289) 805-2659
  • On-site assessment preferred
  • Same fees day, night or weekend
  • 31 years in business