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 San Bruno
Door lock repair in San Bruno usually means one of three things: a deadbolt that won’t turn, a knob set that spins without catching, or a key snapped off inside the cylinder. Our Door Lock Repair team handles all three, and in most San Bruno neighborhoods we can have a technician at your door within the hour. Call (910) 714-4287 and you’ll get a live person, a written price before we dispatch, and a technician sent to you by name and photo before they ring the bell.
San Bruno isn’t like other Peninsula cities when it comes to lock hardware. The Crestmoor rebuilds after the 2010 pipeline explosion left a block-by-block mix of 1950s originals and 2010s builder-grade sets. That means the repair call we get on one street can be completely different from the call across the street. Knowing which side of that split you’re on is half the job.
Why Dunmore Locksmith Is San Bruno’s Preferred Door Lock Repair Company
San Bruno customers call us for a specific reason: we tell you who is coming before you open the door. Every technician is background-checked, identity-verified, and sent to you by name and photo ahead of the visit. When they arrive, they wear a clean marked uniform and show a photo ID badge at the door. That’s the Threshold Standard, and it’s why homeowners who are often alone, parents with young kids, and older San Bruno residents choose us over a nameless dispatch.
We’ve operated under the Threshold Group umbrella since 2007, and the model hasn’t changed: written pricing before any work starts, a 365-Day Done Right Promise on every repair, and a live person answering the phone 24 hours a day. If a repair fails, we come back at no charge. No fine print, no arguing. Perry Osgood leads our team, and the guarantee is his signature on every invoice.
Response time to San Bruno is usually under an hour from the Tanforan side down through Crestmoor and into the hills off Sneath Lane. Dispatch is coordinated from the brand’s San Francisco Bay Area office, with crews serving San Bruno locally. When you call (910) 714-4287, you get a San Bruno-aware tech, not a call-center script.
Door Knob Lock Repair in San Bruno
Door knob lock repair in San Bruno typically means a knob set or lever that no longer latches properly, a thumbturn that spins freely, or a key that works intermittently in the cylinder. In the Crestmoor rebuilds especially, we see builder-grade knob sets that were installed in 2011 – 2015 and are now loose at the rose, with slop in the spindle. A standard knob lock repair or replacement in San Bruno runs $95 – $185 for parts and labor, depending on whether we can rebuild the existing set or need to swap in a new knob and latch.
When a Knob Set Is Worth Rebuilding
Older Schlage and Kwikset knob sets from the 1940s – 60s are often worth re-pinning and lubricating rather than replacing. The brass bodies hold up well, and the fog-driven corrosion usually stays in the cylinder. Rebuilding keeps your original hardware matched to the rest of the house.
When to Replace Instead
If the knob spins without engaging the latch, the spindle is stripped. If the key turns but the latch barely moves, the tailpiece is worn. Both are faster and cheaper to replace than to nurse along. On the 2011 – 2015 rebuilds, we usually recommend moving to an ANSI Grade 1 knob set rather than repairing builder-grade hardware that was thin from the start.
Every door knob lock repair in San Bruno gets a written price before we touch a screw, and the full quote is the price on the invoice. No call-out surcharge added on arrival.
Broken Key Extractor in San Bruno
Broken key extractor in San Bruno is a service we run constantly, because snapped keys aren’t rare in a city with fog-locked cylinders. When a key breaks off flush in a deadbolt on a 1950s San Bruno home, the cause is usually a stiff cylinder that finally ate the key. The removal itself runs $75 – $135, and if the cylinder is reusable, a new key cut on-site keeps the total under $150 in most cases.
How We Remove the Broken Piece
We use a spiral extractor that slides in alongside the broken blade and hooks the teeth from behind. No drilling, no damage to the lock face. If the break is old and the piece is jammed with corrosion, we may need to pull the cylinder and bench-extract it. Either way, the lock keeps its housing.
After the Key Is Out
We’ll tell you honestly whether the cylinder is still serviceable. If the key broke because the cylinder was already failing, rekeying or replacing the cylinder now costs less than another emergency call in six months. In San Bruno’s fog zones, a cylinder that drags once will drag again.
Trusted Brands We Service in San Bruno
We stock parts for Schlage, Kwikset, and Medeco hardware in our service vehicles, so a San Bruno repair is usually a single-visit job rather than a two-trip wait. Schlage B-series deadbolts still show up all over the 1940s – 60s tract homes, and we keep cylinders, tailpieces, and springs for them on hand. Kwikset smart-key cylinders are common in the Crestmoor rebuilds, and we can re-key those without replacing the lock. Medeco high-security cylinders need factory-authorization, which we hold. If the part for your lock isn’t in the truck, we’ll have it within one business day.
Common Door Lock Repair Problems We See in San Bruno Homes
- Builder’s-key handover on newer Crestmoor homes. Homes rebuilt between 2011 and 2015 often still have the builder’s original key working the front door. Every sub, inspector, and prior keyholder has a copy. Until the lock is rekeyed, the door is effectively open to people you never met.
- Stiff, gritty deadbolts on the mid-century streets. The San Bruno Gap funnels persistent Pacific fog and wind through the city year-round. Salt-laden moisture gets into older brass and steel cylinders on 1940s – 60s homes, and keys start dragging instead of turning cleanly.
- Builder-grade hardware failing early on the 2011 – 2015 rebuilds. Thin cylinders and light deadbolts don’t hold up to daily use. We replace more failed builder-grade latches in Crestmoor than any other single neighborhood in our service area.
- Misaligned strike plates from settling and wind. Constant northwest wind through the Gap works exterior doors, and slab settling shifts frames. A lock that works fine until the door is closed hard is usually a strike alignment problem, not a cylinder problem.
Pricing for Door Lock Repair in San Bruno, CA
Here’s what San Bruno door lock repair actually costs with us. Door knob lock repair runs $95 – $185. Broken key extraction runs $75 – $135, plus the new key. Rekeying a standard knob or deadbolt is $65 – $125 per cylinder. Swapping in a new ANSI Grade 1 deadbolt with installation runs $145 – $240. These are honest ranges for this market, not teaser prices, and the number we quote on the phone is the number on your invoice. Every job includes the 365-Day Done Right Promise in writing. Call (910) 714-4287 for a free estimate before we dispatch anyone.
We Also Serve Cities Near San Bruno
Our Door Lock Repair in San Bruno coverage extends to Millbrae, South San Francisco, Pacifica, and Brisbane, where we bring the same written-price rule and the same background-checked, photo-badged technicians. If you’re a few blocks over the city line, the service and the guarantee don’t change. Scheduling is coordinated from the San Francisco Bay Area office, and response times to these neighboring cities match our San Bruno standard.
Serving San Bruno, CA - Our Local Coverage Area
We’re based in the San Bruno 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 San Bruno
If your home was built or rebuilt between 2011 and 2015 and you never changed the keys, rekey right now. The builder’s key may still work, and you don’t know who has a copy. Rekeying runs $65 – $125 per cylinder and takes about 20 minutes per lock. If the hardware is builder-grade and already failing, replace the deadbolt with an ANSI Grade 1 unit at the same visit. Call (910) 714-4287 and Perry or one of our techs will walk through what your doors actually need.
Usually, yes. Most residential locks in San Bruno, including the worn 1950s deadbolts and the 2010s builder-grade sets, can be picked non-destructively by a trained technician. We drill only as a last resort on seized or damaged locks, and we’ll tell you before we do it. If we drill, the cylinder is replaced at the time of repair, and the written price still stands.
The San Bruno Gap sends salt-laden fog and wind through the city year-round, and that moisture works into older brass and steel lock cylinders. The pins corrode, the key drags, and eventually the key snaps. A graphite or PTFE lube may help temporarily, but a proper fix is removing the cylinder, cleaning the pins, and re-lubricating. That service runs $65 – $100. Call (910) 714-4287 and we’ll tell you if your cylinder is cleanable or past saving.
We extract the broken piece with a spiral tool, and we’ll show you both halves before we cut a new key. The extraction runs $75 – $135, and the new key is priced separately. If the lock cylinder is still serviceable, you get a working key cut on-site in minutes. If the cylinder is damaged or was already failing, we’ll rekey or replace it at the same visit with a written price before any work.
Yes. We integrate smart-lock components with existing Schlage and Kwikset deadbolts throughout San Bruno, including the Crestmoor rebuilds where retrofit volume is highest. If your deadbolt is builder-grade, we’ll tell you honestly whether the smart component will fit or whether you need a full deadbolt swap. The written price covers the full installation and pairing, so there’s no surprise at the end. Call (910) 714-4287 to get a real quote for your specific door.
Written by Perry Osgood, Owner at Dunmore Locksmith, serving San Bruno, CA since 2007.