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MaryhillLock & Key Specialists · GuelphOpen 24/7(226) 770-4033Request a visit
MaryhillMaryhillLOCK & KEY SPECIALISTSGUELPH, ONTARIO
Technician and a seated person comparing two door lever handles on long backplates, one silver and one brass, at a kitchen table.

Locksmith in Guelph, OntarioKeys nobody copiesbehind your back.

A patented keyway means the blank is not sold at any counter and every extra key needs an authorised name. We register the system to you, number each key and keep the record honest.

Technician holding a key fob at a folding table with a tablet, loose fobs and a hard case beside a dark SUV.

From the shop

Getting you back inside, gently.

Being locked out is stressful enough without a stranger making it worse. When we arrive we introduce ourselves, ask for something that connects you to the address, and explain what we are about to do before we touch the door. Then we open it with the least force the lock allows.

— Maryhill Lock & Key Specialists

  • You set the paceWe explain, you decide, we work. If you would rather sleep on a bigger change, we do what is needed now and leave the rest for another visit.
  • The reasoning behind each suggestionEvery recommendation comes with the reason for it, in language that does not require you to know the trade. Ask why as often as you like.
  • Order restoredTools packed, dust cleared, doors closed properly. We leave your home or business looking as it did, with the lock problem gone.

Hours

  • HoursOpen 24/7
  • Nights and weekendsSame fees
  • In business35 years
  • VisitsOn-site assessment

Locksmith services

Locks, keys, safes and access

Sometimes the job is obvious: a key snapped in the cylinder, a deadbolt that spins without catching. Other times you know something is wrong but not what to ask for. Either way, start here. Each service page describes the symptoms, the fix and what to have ready.

Lockouts

Lockout Services

Cars, houses and shopfronts lock people out in different ways, and this section holds pages for each. What they share is the approach: verify, open with care, test the lock, leave a key that works and say plainly whether anything else needs attention.

Change or rekey

Change or Rekey Locks

Residential services cover the whole life of a house: settling in, changing tenants, replacing worn locks, adding a smart lock, sorting out a stuck mailbox and making sure the garage side door is as solid as the front.

  1. Hands holding a lock cylinder and a ring of keys above a worn workbench with another cylinder and loose keys. — Lock Rekeying, Guelph
    Lock RekeyingThe builder handed over your new home with a stack of identical keys, and you know the framing crew, the painters and the flooring installers all used a construction key during the build. The doors are brand new, but…
  2. Person holding a silver-colored lock beside an open wooden door with exposed circular holes and a latch at its edge. — Deadbolt Installation, Guelph
    Deadbolt InstallationThe door from the garage into the kitchen closes on a passage knob with no lock at all. Anyone who opens the garage is one turn of a handle from the house, and the insurance renewal form has a question about exactly…
  3. Detached satin-nickel lever hardware, tubular latch and strike plate on a wooden workbench. — Lock Replacement & Upgrade, Guelph
    Lock Replacement & UpgradeEvery morning the front door key needs the same little dance: push in, lift, wiggle, turn. It has been getting worse for a year, and this week it took three tries in the cold before the deadbolt finally gave.
  4. Person holding a long door handle and rectangular lock case beside an open wooden door with exposed hardware recesses. — Vintage Mortise Lock Service, Guelph
    Vintage Mortise Lock ServiceThe key turns freely in the round cylinder on the door, all the way around and back, without the bolt shifting at all. The cylinder itself wobbles slightly when you press it, as if it has come loose inside the door.
  5. Person holding a black door-handle assembly and a latch beside a glazed door with exposed lock openings. — Smart Lock Installation, Guelph
    Smart Lock InstallationArthritis has made the small house key hard to grip and turn, especially with gloves on in January. Pressing a few buttons, or tapping a fob against the lock, would make coming home in winter far easier.
  6. Pale blue garden gate with a black lever latch between light stone pillars. — Gate & Building Entry Locks, Guelph
    Gate & Building Entry LocksThe gate to the side yard used to close with a satisfying click. After a winter of frost heaving the fence post, the latch now sits a full inch below where the strike is waiting for it, and the gate swings free no…
  7. Detached threaded cam lock and mounting washer on a workbench in front of closed mail compartments. — Mailbox Lock Replacement, Guelph
    Mailbox Lock ReplacementThe little brass key for your curbside mailbox was on the same ring as the one you lost at the gym last week. The lock itself is fine, but whoever finds that ring now has a way into your mail as well.

Commercial

Commercial Locks

A commercial lockout can mean a locked front door with customers arriving, a jammed back door with a delivery waiting, or a stockroom key gone missing during a shift. Business lockout work opens the door, checks the lock and gets the day back on track.

Guelph

Calls like these

Roll-up black cloth pouch lying open on a worn wooden bench, holding thin metal probes and hooked tools in separate pockets.

Lock Rekeying

Your basement tenant has given notice, and a new one arrives on the first. The lock on the separate entrance works perfectly well. You simply want a fresh key for the incoming tenant and for the old one to be retired.

Lock Rekeying

Which fix fits?

You just got the keys to a house you bought.The usual fix

UsuallyRekey every exterior door to one new key.

WhyThe seller, their agent and any tradesperson who held a copy are now locked out, and you carry a single key.

You are renting, and the landlord says the locks were never changed.The usual fix

UsuallyAsk the landlord to have the locks rekeyed.

WhyTenants generally need the owner's agreement, and most landlords are glad to do it when asked plainly.

A tenant moved out and did not return every key.The usual fix

UsuallyRekey before the next tenant arrives.

WhyIt keeps the same hardware and closes the gap before viewings start.

The apartment key snapped mid-turn, leaving the cylinder twisted halfway between locked and open.The usual fix

UsuallyBroken Key Extraction

WhyTwo facts shape the job before the locksmith arrives: whether the door is locked or unlocked, and whether any of the key is showing.

You came home to find the front door standing open.The usual fix

UsuallyBreak-In Damage Lock Repair

WhyMost forced doors fail at the frame, not the lock.

The lock works, but only if you lean on the door with your hip while turning the key.The usual fix

UsuallySeized & Jammed Lock Opening

WhyOn storefronts, offices and older houses the hardware is often a mortise lock with a lever, and the jam is frequently inside the case, not the cylinder.

Open 24/7

How a visit goes

The first useful move after losing a key is to think about where it worked rather than where it went. A house key commonly opens more than the front door: the back door, a side entrance, the door from the garage into the house, a shed, a gate padlock, sometimes a storage room or a mailbox.

Drawing: a house seen from the street. The van pulls up, the garage door is opened for the work, then it closes level and the porch light comes on.
  1. 1 of 3

    Counting the doors and keys

    We walk the house with you, note every exterior lock and ask which doors you want on one key. That decides the pin work and the number of keys to cut.

  2. 2 of 3

    Pinning the cylinders

    Each cylinder comes out, gets new pins to match a fresh key, and goes back in. Old keys stop working the moment the cylinder is back in place.

  3. 3 of 3

    Testing every door with every key

    We try each new key in each lock, from outside and inside, hand you the set and explain how many copies exist so you know exactly who can get in.

Wellington, Ontario

Guelph information

Town
Guelph, Wellington, Ontario
In business
35 years
Hours
Open 24/7, same fees any hour
Visits
On-site assessment preferred

2021 census · what it means at the door

  • 44%Homes of every age

    About 44% of homes in Guelph were built in 1980 or earlier, according to the 2021 Census.

    In an area where homes span several eras, one street may have original mortise locks and the next builder-grade cylinders. A locksmith working here carries parts for both, so whichever door he meets, the job finishes in one visit.

  • 49%

    Single-detached houses make up about 49% of homes in Guelph (2021 Census).

    In areas of mixed housing, landlords may own a house here and a few units there. A locksmith can put all of it under one master system so the owner carries one key while each tenant's key opens only their own door.

Source: Statistics Canada, Census Profile

Short answers to common questions

(226) 770-4033

My lock is the homeowner-rekeyable type but the working key is lost. Can it still be reset?

Yes. Those cylinders let an owner change the key with a small learn tool, but only while a working key is in hand. Without one, a design such as Kwikset SmartKey is removed and placed in its own reset fixture, returning it to a blank state; other cylinder types are rekeyed by their own method instead. A new key is then set and the lock goes back on. It is a few extra minutes rather than a replacement.

Do I have to prove I live here before you rekey?

Yes, and it is a step that protects you. A rekey changes who can open the door, so the locksmith confirms the person asking has the standing to decide: photo identification matched to the address for an owner, a lease or bill for a tenant, management records for a superintendent or property manager. Say on the phone what you have so the visit starts smoothly.

Can all my doors work on one key afterwards?

Usually, yes. Cylinders that share a keyway family accept the same blank, so they can be pinned to one combination during the rekey. The front door, back door, garage entry and a gate padlock of the same family become a single key. Where a door uses a different family, the locksmith can swap its cylinder for a compatible one in the same visit, or you can choose to keep two keys for that door.

What are the hardware grades I see on the packaging?

Locks and deadbolts are tested against industry standards for security, durability and finish. Commercial hardware is graded 1, 2 or 3 with grade 1 the highest. Residential hardware carries a letter label for each of the three categories, from C for good through B to A for the top level. Security tests include hammer blows and pulling on the lock; durability covers cycle life and seasonal misalignment; finish covers salt, humidity and scratching. Your locksmith translates the label for your door.

On-site assessment preferred

Request a visit

Let's fix that lock. Start with a phone call.

Maryhill Lock & Key Specialists

Locksmith · Guelph

Open 24/7

(226) 770-4033

35 years in business

Open 24/7 · call(226) 770-4033Request a visit