Non-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.
Fast, Reliable Door Lock Repair Across Lafayette
Door lock repair in Lafayette typically runs $95 – $340 depending on the hardware and what’s actually wrong, and most jobs are finished the same day we arrive. If you live off Happy Valley Road or Reliez Valley Road, you already know that Lafayette locks face pressures most Bay Area hardware never sees: triple-digit Diablo Valley heat, seasonal frame movement, and a generation of hillside gate controllers now discontinued by their manufacturers. We work on all of it. Call (910) 714-4287 and a live person answers, any hour.
Why Dunmore Locksmith Is Lafayette’s Preferred Door Lock Repair Company
Dunmore Locksmith is the Lafayette face of Threshold Group, the network built around one premise: you should know exactly who is coming to your door before you open it. We’ve operated under the Threshold Group umbrella since 2007, and every technician we dispatch to Lafayette is background-checked, identity-verified, and photo-badged. You get the technician’s name and photo before the visit. When they arrive, they show a photo ID at the door. That’s the Threshold Standard, and if anyone shows up who you weren’t told to expect, that visit is covered at no charge.
Lafayette homeowners tell us the same thing over and over: they wanted a company that would put the price in writing before any work started. So that’s what we do. Every job, no exceptions. You’ll know the full cost of your door lock repair before a single tool comes out, and that written price is the price on your invoice. Not an estimate that balloons. Not a teaser number that doubles on arrival.
Our Door Lock Repair team carries parts for the hardware Lafayette homes actually have: Schlage, Kwikset, Medeco, and Yale cylinders, plus retrofit kits for the aging gate controllers you find on hillside estates above downtown. Dunmore comes from old words for a great fort. The name fits the work.
Deadbolt Repair in Lafayette
Deadbolt repair in Lafayette usually means one of two things: a bolt that won’t throw because the solid-wood door frame has shifted, or a cylinder that’s worn to the point where the key binds or turns without engaging. In ranch homes built between the 1950s and 1970s, the original frames are still doing their job, but 95 – 105°F summer heat expands the wood enough to push the strike plate out of alignment. The deadbolt won’t seat. You force it, it gets worse. Standard deadbolt repair on a Lafayette home runs $95 – $180; a full replacement with a new Schlage or Kwikset deadbolt runs $180 – $340 including hardware.
Strike Plate Realignment
When summer heat swells a wood frame, the strike plate drifts a fraction of an inch and the deadbolt binds. We recut the mortise, realign the plate, and test the throw with the door open and closed. It’s a 30-minute fix on most Lafayette ranch homes.
Cylinder Replacement on Worn Deadbolts
Keys that spin without turning, keys that pull out mid-turn, keys that work one day and not the next: that’s a worn cylinder. We re-pin or replace the cylinder and rekey it to match your existing house key, so you don’t end up carrying a second key for a deadbolt you use every day.
Patio Door Lock Repair in Lafayette
Patio door lock repair in Lafayette is a frequent call from homeowners with 1970s-era sliding glass doors whose original hardware was discontinued long ago. The common failure: the latch hook no longer reaches the keeper because the door rollers have sagged, or the mortise lock body inside the door has stripped its internal gears. Expect $110 – $260 for most Lafayette patio door lock repairs, including replacement hardware matching your existing key system.
Sliding Door Latch and Keeper Alignment
A patio door that won’t lock is a security problem you can’t ignore, especially on ground-level access. We adjust roller height, realign the keeper, and if the latch is beyond saving, we replace it with hardware keyed into your existing house system.
Mortise Lock Repair on Multi-Point Patio Doors
Some Lafayette hillside homes have high-end patio doors with multi-point locking bars that throw at three points along the door edge. When one bar binds, the whole mechanism jams. We service these without drilling whenever possible, and we stock replacement mortise cassettes for the European systems common on Lafayette estates.
Trusted Brands We Service in Lafayette
We’re factory-authorized to install and service Schlage, Kwikset, Medeco, and Yale hardware, from basic pin-tumbler cylinders to high-security commercial cores. For Lafayette customers, that means we don’t have to special-order your parts from a catalog and make you wait through a second visit. Our vans carry the common cylinders, mortise cassettes, and retrofit gate controller kits we know Lafayette properties need, so most door lock repairs finish in one trip. If your hillside estate has a discontinued European multi-point lock, chances are we’ve seen that exact model before.
Common Door Lock Repair Problems We See in Lafayette Homes
- Summer deadbolt jams from wood frame expansion: Lafayette sits deep in the Diablo Valley, where summer temperatures regularly hit 95 – 105°F. Original solid-wood door frames on 1950s – 1970s homes absorb that heat and swell, throwing deadbolts out of alignment until winter contraction resets the problem. It’s a seasonal cycle we fix the right way, not with a heavier slam.
- Discontinued gate keypad controllers on hillside properties: Many Lafayette estates above downtown installed coded gate keypads and intercom systems in the early 2000s. Those proprietary controllers are now discontinued, so the gate fails even when the door lock itself is sound. We carry retrofit kits as standard van stock.
- Mismatched keys across house, outbuildings, and gates: Long shared driveways off Reliez Valley Road and Happy Valley Road often mean a main house, a workshop, a detached garage, and a driveway gate, each on a separate key. A single-visit rekey with a master key system unifies the whole property.
- Worn mortise lock cylinders in European multi-point systems: Hillside custom estates built from the 1980s onward frequently feature ornate European multi-point locks. When the cylinder wears or a locking bar binds, most suburban locksmiths don’t carry the parts. We do.
Pricing for Door Lock Repair in Lafayette, CA
Here’s what Lafayette homeowners can expect to pay. Deadbolt repair or cylinder rekeying typically runs $95 – $180. A new Schlage or Kwikset deadbolt installed runs $180 – $340. Patio door lock repair runs $110 – $260 depending on whether we’re realigning, replacing hardware, or servicing a mortise lock body. Gate controller retrofits on hillside estates are quoted after we see the existing system, but most run in the same range as a deadbolt replacement. The price we quote on the phone is the price on your invoice. No call-out surcharge added on arrival, no estimate that grows halfway through the job. Call (910) 714-4287 for a free estimate.
We Also Serve Cities Near Lafayette
Beyond Lafayette, our Door Lock Repair in Lafayette team covers Walnut Creek, Orinda, Moraga, and Pleasant Hill. If you’re on the Lafayette side of the border or just over into any neighboring city, the same written-price policy, the same Threshold Standard for technician arrival, and the same 365-Day Done Right Promise apply. One call covers the whole corridor.
Serving Lafayette, CA - Our Local Coverage Area
We’re based in the Lafayette 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 Door Lock Repair in Lafayette
Yes. We do single-visit master key system installs for Lafayette acreage properties regularly. One service call covers the house, workshop, detached garage, and gate hardware. We re-pin every cylinder to work on one key while preserving the option of individual access keys for tenants or contractors. The written quote you receive before dispatch is the price you pay.
Because Lafayette sits deep in the Diablo Valley and summer heat of 95 – 105°F expands the original solid-wood door frames on 1950s – 1970s ranch homes. The wood swells, the strike plate drifts, and the deadbolt binds. Winter contraction pulls the frame back, which is why the problem seems to disappear. We fix the alignment properly so it stops recurring. Call (910) 714-4287 and we’ll explain exactly what’s happening with your frame.
We do. Our Lafayette vans stock replacement cylinders, mortise cassettes, and locking bars for the European multi-point systems common on hillside custom estates built from the 1980s onward. Most suburban locksmiths don’t carry these parts at all. If your lock is a model we need to order, we’ll tell you that before any work starts, in writing.
In most cases, yes. We carry the tools to manipulate and disassemble jammed patio door locks without drilling, including the discontinued 1970s-era latch hardware common on Lafayette ranch homes. If the lock is beyond saving, we replace it and key it into your existing system. You’ll know the full price before we begin.
Yes, and you’re not alone. The Lafayette BART parking lots are a chronic, well-documented break-in hotspot, and we respond to auto lockout and repair calls from commuters returning in the evening throughout the week. Our auto locksmith service covers damaged locks, replaced ignitions, and lockout openings without damage to your vehicle.
Written by Perry Osgood at Dunmore Locksmith, serving Lafayette and the surrounding Contra Costa corridor.






