Smart locks
House lockouts
Re-keying
Deadbolt upgrades
Schlage
Kwikset
Car keys & fobsNon-destructive entry first, always - and we re-key Schlage, Kwikset, and Baldwin locks on the spot while you watch
You get a price before we start. It does not change when we arrive. No surprises.
Get your free estimateLocksmith in Saint Johns, MI
Rekeying locks is the service Saint Johns calls on most, and for good reason. The city’s housing stock runs heavily to pre-war and mid-century homes, many of which still carry original mortise locksets and single-cylinder deadbolts that need specialized hand-fitting rather than a quick swap. When you add freeze-thaw cycles that bind aging hardware, you get a county seat where a locksmith’s real job is keeping older locks working and key control tight. Call Reliance Lock & Key at (855) 341-7491 for rekeying, car key replacement, or an emergency lockout in Saint Johns.
Why Saint Johns Homes Are Different
Saint Johns is a compact Clinton County seat of roughly 8,000 people, and its housing stock tells the story. Victorian-era and early-1900s houses cluster around the courthouse square, while 1940s through 1970s bungalows and ranches fill the surrounding grid. A striking number of these homes still have their original mortise locks, rim locks, and single-cylinder deadbolts. That matters because off-the-shelf hardware from a big-box store rarely fits those older doors without modification. The lock cylinders, faceplates, and strike plates were built to different tolerances than today’s Kwikset or Schlage products, so a rekey often involves working with what’s already in the door rather than replacing it.
The mid-Michigan snowbelt does not help. Cold, icy winters and repeated freeze-thaw cycles cause wood door frames to swell and shift, which binds locks or freezes them solid. Summer humidity can warp older wood doors the other direction. So calls spike in January and July for the same underlying reason: a lock that worked fine last month suddenly will not turn. Saint Johns also functions as the nearest callable locksmith for surrounding rural townships, which means we regularly drive out to farmsteads and older in-town homes where the hardware predates most of the people living there. Estate sales and probate turnover around the courthouse square keep rekeying steady, because families need keys changed before a house goes on the market or to a new owner.
Styles & brands we work with







Our Main Saint Johns Services
Saint Johns homeowners and drivers call us most often for two things: car key replacement when a key is lost or damaged, and emergency lockout response when a door will not open. Both are covered below, with dedicated pages for each.
Car Key Replacement in Saint Johns
Losing a car key in Saint Johns is different from losing one in a larger metro. There is no dealership in town, and the nearest one is a drive away, which turns a bad morning into a half-day problem. We cut and program replacement keys and fobs for most domestic and import vehicles, often the same day you call. That includes transponder keys and push-to-start fobs, not just basic metal keys. For drivers who want to skip the dealership tow and the dealership wait, this is the faster route back on the road. Learn more about how we handle key replacement in this area on the Car Key Replacement in Saint Johns page.

Emergency Locksmith in Saint Johns
A frozen lock in January, a snapped key in the dark, a door that will not open after the frame swells in July: Saint Johns gets all of these. Our emergency response covers lockouts for homes, vehicles, and the older storefront doors around the courthouse square. We carry the hand tools and replacement cylinders needed for the mortise locksets common on this city’s older doors, which matters because a generic truck-stock approach will not help when the lock predates the 1960s. For urgent, time-sensitive lockouts in the 48879 area, see the Emergency Locksmith in Saint Johns page.

What happens when you call
- 1
A real person answersNo phone trees — you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Rekey Locks in Saint Johns

Rekeying in Saint Johns means changing the internal pins of an existing lock so the old keys stop working and new keys take over. It is the right move after buying an older home near the courthouse square, after a tenant moves out of a rental on the surrounding grid, or after keys have gone missing. Because so many Saint Johns homes still have original mortise locksets and rim locks, a proper rekey here often means hand-fitting new pins into hardware that is no longer sold off the shelf. The freeze-thaw cycle also loosens door alignment, so we check the strike plate and latch while the cylinder is out. Our Rekey Locks service covers the full process from cylinder removal to testing every new key in the door.
Lock Rekey
Signs you need it
You have a new house, a new tenant, a lost or unreturned key, or you cannot account for every copy of a key that ever circulated.
What it costs in Saint Johns
Rekeying a standard lock in Saint Johns typically runs $20 to $40 per cylinder, plus the service call.
How we do it
We remove the cylinder, swap the internal pins to match a new key, reassemble the lock, and test the key in the door several times to confirm smooth operation.
Rekey Door Lock
Signs you need it
A previous owner, contractor, or neighbor may still hold a working key to your door, or you want one key to work several exterior doors.
What it costs in Saint Johns
Rekeying an existing door lock in Saint Johns typically costs $20 to $40 per cylinder, with the service call quoted before dispatch.
How we do it
We pull the existing lock cylinder, pin it to the new key, reinstall it in the door, and confirm the latch and deadbolt still engage fully.
Keyed Alike
Signs you need it
You have three keys for three doors and want the front door, back door, and deadbolt all on one key.
What it costs in Saint Johns
Keying multiple locks alike is priced per cylinder, typically $20 to $40 each in Saint Johns, plus the service call.
How we do it
We pin each cylinder to the same key cuts, then test every lock in sequence to make sure one key operates all of them without resistance.
What Rekey Locks Costs in Saint Johns
| Item | Typical range in Saint Johns |
|---|---|
| Rekey per cylinder | $20 – $40 |
| Service call | Quoted on the phone, no surprise add-on |
| New key copies (after rekey) | Priced per key at the time of service |
How much does it cost to rekey a house in Saint Johns?
Most homes have two to four exterior cylinders, so a full rekey in Saint Johns typically lands between $40 and $160 in labor plus the service call. Call (855) 341-7491 for an exact quote on your doors.
Can you rekey old mortise locks in Saint Johns?
Yes. Older mortise locksets can be rekeyed, but they often need hand-fitting rather than a quick cylinder swap. We carry the pins and tools to work on these older locks, and we will tell you if a lock is too worn to rekey safely before we start.
Brands We Service in Saint Johns
We work on the hardware found across Saint Johns, including Kwikset and Schlage on newer homes and Baldwin, Mul-T-Lock, Sargent, and Abloy on higher-end or institutional doors. We keep common pins and parts on the truck for same-day rekeys. For restricted high-security systems like Medeco, Abloy, and Mul-T-Lock, see our brands page for details on what we service and what we recommend.
Pricing for Locksmith in Saint Johns, MI
| Service | Typical range in Saint Johns |
|---|---|
| Rekey per cylinder | $20 – $40 |
| Lockout (residential) | Quoted on the phone, no surprise add-on |
| Car key replacement (basic) | Quoted on the phone before dispatch |
| Transponder key programming | Quoted on the phone before dispatch |
| High-security key (Medeco, Abloy, Mul-T-Lock) | Priced per system, quoted before work begins |
| Mortise lock rekey / repair | $20 – $40 per cylinder, hand-fitting may add time |
| New key copies | Priced per key at the time of service |
What pushes a price up in Saint Johns is usually the age and condition of the lock. An original mortise lockset on a 1920s house near the courthouse square takes longer to rekey than a modern Kwikset deadbolt, and if the door frame has shifted from freeze-thaw cycling we may need to adjust the strike plate before the lock sits right. The price we quote on the phone is the price on the invoice, and no one is dispatched before you hear the full cost.
Neighborhoods We Serve in Saint Johns
We cover the entire 48879 ZIP and the surrounding rural townships that look to Saint Johns as their nearest locksmith. That includes the older streets around the Clinton County Courthouse, the mid-century bungalow blocks off the main drag, and the farmsteads outside town where a lockout can be a long wait for anyone else. Response time in town is typically fastest; rural townships add drive time.
- Courthouse Square district
- South Saint Johns (1940s – 1970s bungalows and ranches)
- North Saint Johns neighborhoods
- East side residential grid
- Rural townships around the 48879 ZIP
Service Area – Cities Near Saint Johns
Reliance Lock & Key serves Saint Johns and the surrounding Clinton County communities. We also take calls from Fowler, MI, Ovid, MI, DeWitt, MI, and Bath, MI. If you are in one of those towns, the same rekey and emergency coverage applies, with the drive time added to the estimate before we dispatch.
Serving Saint Johns, MI — Our Local Coverage Area
We’re based in the Saint Johns area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs About Locksmith in Saint Johns
In-town response in Saint Johns is typically fastest, since the city is compact and most addresses are within a short drive of the courthouse square. Rural townships around the 48879 ZIP add drive time. We quote response time on the phone before dispatch and confirm the estimate as we head your way.
No permit is required to rekey locks on existing doors in Saint Johns. Rekeying is considered routine hardware service, not construction. If a door or frame is so damaged that it needs new hardware or a new door, that can cross into territory where a building official may want to take a look, and we will tell you if we see that on site.
Yes. We take calls from the townships around Saint Johns, including farmsteads and rural properties where the nearest help can otherwise be a long drive. We will confirm the exact address and give you a service call estimate before anyone is dispatched, so there are no surprises when we arrive.
Call Reliance Lock & Key at (855) 341-7491 for a free estimate on rekeying, car key replacement, or an emergency lockout in Saint Johns. We answer the phone, quote the full price before dispatch, and show up ready to work on the older locks this city is known for.
What happens when you call
- 1A real person answersNo phone trees — talk to a local locksmith pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you — the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Saint Johns Customers Say
"Commercial job, panic bar and a master key system for a small office. Clean install and clear documentation of which key opens what."
— Roger Novak"Told me over the phone that what I needed was a five dollar part from the hardware store, not a locksmith. I called him back a month later for real work because of that."
— Rosa Herrera"Rekeyed every lock in the house the day after we closed. Six doors, all matched to one key, done in about ninety minutes."
— Eric Whitaker