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 – $220 for common fixes like a seized deadbolt, a loose knob, or a broken key extraction, and we can usually have a tech at your door the same day you call. We work throughout Lafayette, from the older streets near the Downtown district up to the hillside homes off Reliez Valley Road and the neighborhoods around the Reservoir. The price you’re quoted on the phone at (409) 405-4485 is the price on your invoice, in writing, before our technician touches a single tool. No dispatch fee added at the door, no “discovered complexity” upcharge. Call us, tell us what the lock is doing, and we’ll tell you what it costs. That’s how this should work.
Why Preston Locksmith & Security Is Lafayette’s Preferred Door Lock Repair Company
We’ve repaired enough locks in Lafayette to know the housing stock here doesn’t play by one set of rules. The 1950s ranchers off Moraga Boulevard have different door hardware than the newer builds near the BART corridor, and the older Downtown storefronts still carry commercial mortise locks that a lot of techs won’t touch. Our experienced team, led by Kevin Yoon, trains specifically on that range, from basic Kwikset knobs to Baldwin mortise bodies and Medeco high-security deadbolts.
Every Lafayette job runs through The Relay Visibility Guarantee. That means you get a written price before we dispatch, a live arrival time you can track from your phone, before-and-after photos of the actual repair, and a written 365-Day Done Right Promise on every invoice. If the repair fails within that year, our second visit is free. No argument, no charge. We built our reputation in Lafayette on that guarantee, not on marketing language.
Door Knob Lock Repair in Lafayette
Door knob lock repair in Lafayette usually means one of two things: a knob that spins freely without engaging the latch, or a knob that turns but the latch won’t retract enough to open the door. Both are common in Lafayette homes where daily use and years of weathering have worn down the internal spindle or loosened the set screws that hold the knob to the stem. On older houses near the downtown, we also see knob assemblies where the original screws have stripped, leaving the knob wobbly against the escutcheon plate.
Expect this repair to run $85 – $150 in Lafayette for a standard residential knob, depending on whether we’re replacing internal parts or rebuilding the existing hardware. We’ll diagnose the issue on site and give you a fixed number to approve before any work. We carry Schlage, Kwikset, and Yale internal components in our service vehicles, so most knob repairs are done in a single visit.
Loose or Spinning Door Knobs
A spinning knob means the spindle (the connecting bar running through the lock body) has slipped or broken. When that happens to a Lafayette homeowner near the high school or the Lafayette Library, it’s usually a 20-minute fix: swap the spindle, re-seat the knob, tighten the set screws, and check the latch throw. On older solid-brass knobs, we preserve the visible hardware and replace only what’s worn inside. You keep the look of the door; we restore the function.
Sticking or Stiff Latch Mechanisms
A knob that turns hard or a latch that doesn’t retract fully is usually a misaligned strike plate or a latch body gummed with old lubricant and dust. On Lafayette’s older doors, especially those that have settled slightly out of square, we often find the latch bolt dragging against the strike. We’ll clean the latch, lubricate it with a dry film, and adjust or shim the strike so the bolt throws cleanly. A simple latch tune-up runs $75 – $110, with the written price confirmed before we begin.
Broken Key Extractor in Lafayette
A broken key extractor gets a snapped key fragment out of your lock cylinder without destroying the lock, and in Lafayette we see this most often on homes with older Schlage and Baldwin locks where years of use have microfractured the brass keys. Homeowners off St. Mary’s Road and in the Reliez Valley area often hand us a key that’s snapped right at the bow, leaving the blade buried in the cylinder. When that happens, the right move is a proper key extraction, not a drill.
Broken key extraction in Lafayette runs $65 – $120, depending on the keyway and how deeply the fragment is seated. We use hook picks, spiral extractors, and keyway-specific tools to grip and pull the broken piece. Once it’s out, we’ll check the cylinder for burrs or damage and test it with a working key. If the cylinder itself was already failing, we’ll quote you a repair or rekey at that point, with the price in writing before any additional work. We don’t drill first and apologize later.
Snapped Key Removal Without Drilling
On a standard Schlage or Kwikset cylinder, a broken key can almost always be pulled without touching a drill. The blade breaks off clean in the keyway, and a decent extractor with the right tension will pull it free in a few minutes. The danger is when a first-call locksmith reaches for a drill on a non-destructive extraction and ruins the cylinder, especially on a Lafayette mortise lock where a replacement body might be difficult to source. Our techs are trained in non-destructive extraction first. We drill only when the cylinder is already dead and extraction is genuinely impossible.
After Extraction: Check the Cylinder
A key that snaps is often a symptom of a cylinder that’s already worn or binding internally. After we remove the broken blade, we’ll cycle the lock with a known-good key, check the pins for wear, and inspect the plug for debris. If the cylinder is salvageable, you pay for the extraction and nothing else. If it’s worn to the point of frequent key snags, we quote a cylinder swap or rekey, and you’ll approve the number before we proceed. No surprise add-ons, ever.
Trusted Brands We Service in Lafayette
Our team works daily with Schlage, Kwikset, Medeco, and Yale hardware, from the basic deadbolts on starter homes near Brookwood to high-security Medeco cylinders on commercial doors along Mt. Diablo Boulevard. We also service Baldwin and Mul-T-Lock, which matters in Lafayette because many of the original mortise locks in mid-century homes around the Reservoir are Baldwin, and skipping that expertise means selling homeowners a retrofit they didn’t need. We keep common Schlage and Kwikset replacement parts stocked in our vehicles, so most Lafayette repairs happen on the first visit. For less common hardware, we source quickly from local Bay Area suppliers and keep you posted on timing. That’s part of Door Lock Repair done the right way.
Common Door Lock Repair Problems We See in Lafayette Homes
- Seized mortise bolts on mid-century doors. Older Lafayette homes off Reliez Valley Road and around the Downtown area often still have their original mortise lock bodies. The bolt seizes from decades of dried lubricant and dust, and the thumb-turn starts grinding. This needs a teardown, not a replacement.
- Out-of-square doors binding deadbolts. Homes settle. When a door frame shifts slightly out of square, a big-box deadbolt’s bolt drags against the strike plate and chews itself up. We see this regularly in Lafayette’s hill-perched homes where the soil moves seasonally. The fix is adjusting or shimming the strike, not just replacing the lock.
- Broken keys in high-use deadbolts. Brass keys under daily use fatigue and snap, especially on the main entry deadbolt. We extract the blade and check whether the cylinder’s pin stacks are too worn to reliably accept a new key.
- Worn knob spindles on 1960s hardware. The internal square spindle on older Schlage and Kwikset knobs rounds off after decades of turns. The knob spins without engaging the latch, and the whole set feels loose. We replace the spindle and keep your original visible hardware.
Pricing for Door Lock Repair in Lafayette, CA
Here’s what Lafayette homeowners can expect to pay. A basic door knob repair (spinning or loose knob) typically runs $85 – $150. A sticking latch or strike plate adjustment runs $75 – $110. Broken key extraction runs $65 – $120. A seized mortise lock teardown, cleaning, and re-pin runs $140 – $220, and that’s the job most often needed on older Lafayette doors. If we’re working on a high-security cylinder (Medeco, Mul-T-Lock), add $15 – $35 for the extra handling those keyways require. The quote you get over the phone at (409) 405-4485 is a fixed number, not an opening bid. We don’t add a dispatch fee when the tech arrives, and we don’t swap in a higher price after we see the lock. The price is written down before the work starts, and it’s the same number on your invoice.
We Also Serve Cities Near Lafayette
If you’re just outside Lafayette, you’re still in our service area. We handle Door Lock Repair in Lafayette and also serve Walnut Creek, Orinda, Moraga, and Pleasant Hill. Response times to those areas run a few minutes longer depending on the time of day, and the same written-price guarantee applies everywhere. Call and we’ll give you a live arrival window before we dispatch.
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. Every quote we give over the phone for Lafayette door lock repair is a fixed price, written down, before a technician is dispatched. The number includes labor, the parts we plan to use, and our travel to Lafayette. If the tech arrives and finds additional work you didn’t approve, you’ll get a separate written price for that before anything else happens. The phone quote is not a teaser, and no dispatch surcharge gets added at the door. Call (409) 405-4485 and we’ll tell you the exact cost. Free estimates, no obligation.
Yes, and we do it regularly. Mortise lock bodies from the 1950s and 1960s are common in Lafayette’s older homes near the Reservoir and downtown, and they’re built better than most modern tubular deadbolts. We’ll pull the mortise body, free the seized bolt, clean and lubricate the internal mechanism, and re-pin the existing cylinder to your current key. A typical mortise lock teardown and repair runs $140 – $220. Replacing the body only happens if the original is cracked or irreparably worn, and that’s your call to make after we show you what we found. Call for a free assessment of your specific lock.
Every Preston technician arrives in uniform with company ID, and you’ll already know what they look like before they knock. We send you a live tracking link when we dispatch, so you can watch the tech’s arrival in real time. When they arrive, they’ll verify the job details with you, show you the written price again, and only then begin work. Our team is background-checked, and Kevin Yoon oversees training and service quality across our Bay Area operations. If someone shows up claiming to be us without a uniform and without your dispatch link, don’t let them touch your door.
For a Schlage or Kwikset deadbolt that’s hard to turn, we start by checking alignment. If the door has settled and the bolt is dragging, we adjust or shim the strike plate so the bolt throws cleanly. If the cylinder itself is gritty, we lubricate and test the pin stack. If the tailpiece has bent or the thumb-turn is slipping on the bolt mechanism, we replace those internal parts. Most Schlage and Kwikset deadbolt repairs in Lafayette run $85 – $140, and we keep the common internal components in our trucks. Call and describe what the lock is doing, and we’ll give you a written price to approve.
Almost always, yes. We use keyway-specific picks and extractors to grip the broken blade and pull it straight out. Drilling is a last resort, and on Lafayette’s older mortise locks, drilling usually destroys a body that can’t be easily matched. The extraction itself runs $65 – $120, and we’ll test the lock with a known-good key afterward. If the cylinder shows internal wear that caused the key to snap, we’ll quote you a repair or rekey as a separate, written price before touching it. The old lock stays intact in the vast majority of cases. Call (409) 405-4485 for a free assessment.
Contact Preston Locksmith & Security in Lafayette, CA
Your lock isn’t working, and you need someone who’ll actually pick up the phone, tell you the real price, and show up when they said they’d show up. Call (409) 405-4485 for a free, no-obligation estimate on door lock repair anywhere in Lafayette. A live person answers, 24/7. We’ll give you a written price, a trackable arrival time, and a guaranteed fix backed by our 365-Day Done Right Promise. If it’s not done right, we make it right, free. That’s the deal, and it’s in writing every single time.
Written by Kevin Yoon, Owner at Preston Locksmith & Security, serving Lafayette, CA.






