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 Residential Locksmith Across Lafayette
A residential locksmith in Lafayette handles change door locks, rekeying, deadbolt installation, and emergency lockouts at single-family homes, condos, and hillside estates throughout the Lamorinda area. We reach most Lafayette neighborhoods within 30 – 45 minutes, and our phones are answered by a live person 24 hours a day. Call (910) 714-4287 for a written price before anyone is dispatched.
Lafayette’s housing stock presents a specific set of lock and door hardware challenges. The core of the city is 1950s – 1970s ranch and split-level homes with original solid-wood door frames. The hillsides above downtown hold custom estates on roads like Happy Valley Road and Reliez Valley Road, many with wrought-iron gates, European multi-point locks, and smart access systems that a Lafayette commercial locksmith is equipped to service. Both extremes fail in predictable, addressable ways. We know which ones because we work on them every week.
Our Residential Locksmith team carries retrofit kits, marine-grade hardware, and replacement cylinders for the brands Lafayette homeowners actually have installed. We also stock parts that big-box stores don’t. That matters when a discontinued gate keypad dies on a shared hillside driveway and you need a same-day fix, not a two-week special order.
Why Dunmore Locksmith Is Lafayette’s Preferred Residential Locksmith Company
Dunmore Locksmith operates under the Threshold Group umbrella and has served customers since 2007. The name comes from old words for a great fort, a stronghold built to keep what is inside safe. That idea drives how we work in Lafayette: we tell you exactly who is coming to your door, in writing, before they arrive.
Every Dunmore technician sent to a Lafayette home is background-checked and identity-verified under what we call the Threshold Standard. You receive the technician’s name and photo before the visit. The person at your door wears a clean marked uniform and carries a photo ID badge, and they show it without being asked. If someone arrives who you were not told to expect, that visit is covered at no charge.
Lafayette homeowners consistently tell us the same thing: they want to know who they’re opening the door to. Parents with young kids. People who are home alone. Older homeowners who’ve heard stories about locksmith scams elsewhere. We address that concern directly, every single time, with a named technician and a written price before any work begins. No exceptions.
Our Residential Locksmith in Lafayette coverage spans the entire city, from the flats near the BART station to the hillside roads above Highway 24. We coordinate dispatch from our San Francisco Bay Area office, but the crews working in Lafayette live and work here in Contra Costa County.
Lost Key Replacement in Lafayette
Lost Key Replacement in Lafayette means producing a new working key when the original is gone, and the approach depends on what kind of lock you have and whether you still have any working copies. If you have a key, cutting a duplicate is fast and inexpensive. If you’ve lost every key, we cut a new key from the lock cylinder itself, or replace and rekey the cylinder if you’re concerned about who might have found the missing key. A typical lost key replacement in Lafayette runs $35 – $95 when cut from an existing key, and $95 – $185 when we need to originate a key from the lock cylinder.
After a lost key: rekey vs. replace
If you can’t account for a missing key, rekeying (changing the internal pins so your old keys no longer work) is the standard security recommendation. Rekeying a standard knob lock in Lafayette runs $40 – $85 per lock. We can rekey multiple locks to a single key, which is what most homeowners want after losing a key on a commute through the Deer Hill Road BART station area.
High-security key origination
Hillside Lafayette estates often run Medeco or Mul-T-Lock high-security cylinders. Originating a key for these requires factory-authorized equipment and proof of ownership. We do this work in the field, and the pricing reflects the security level: expect $120 – $260 for a lost high-security key replacement, including the new restricted key blank.
House Key Locksmith in Lafayette
A House Key Locksmith in Lafayette handles everything from cutting spare keys to reconfiguring every lock on your property to a single key. The most common request we field is “make all my locks work off one key.” In a city where homes often have three or four exterior doors plus a gate, that consolidation saves real frustration. Rekeying a typical Lafayette home with three entry points runs $120 – $230 total, including the new keys.
One key for the whole property
If your Lafayette home has a front door, a side door, a garage entry, and a gate, you’re likely carrying four keys right now. We can rekey all of them to a single key in about an hour. If some of those locks are different brands with different keyways, we’ll tell you up front which ones can share a key and which need new hardware. The written estimate shows the per-lock cost before we start.
Smart lock key backup
Every smart lock we install in Lafayette gets a physical key backup. Power fails, batteries die, and as we’ve seen on 105°F July days, motor gears strip under frame pressure. You need a mechanical key that works. We include keyed backup cylinders on every motorized deadbolt installation we do, and we’ve never met a Lafayette homeowner who regretted having one.
Trusted Brands We Service in Lafayette
We’re factory-authorized to install and service Kwikset, Medeco, and Baldwin hardware, among other lines. Lafayette homes run the full range: original Kwikset knobs on 1960s ranches, Baldwin mortise locksets on remodeled colonials, Medeco high-security deadbolts on hillside estates. We stock common cylinders, pins, and strike plates for these brands in our vans, which means same-day turnaround for most Lafayette jobs instead of a parts-order wait. If we don’t have a part, we tell you before you pay anything.
Common Residential Locksmith Problems We See in Lafayette Homes
- Summer deadbolt jams on solid-wood doors. When Lafayette hits 95 – 105°F, the original wood frames on 1950s – 1970s ranches expand enough to push the strike plate out of alignment. The deadbolt that worked fine in June won’t throw in July. We realign the strike and often replace it with an oversized plate so the cycle doesn’t repeat next heat wave.
- Seized gate and exterior cylinders from salt-bearing air. Homes near the Diablo Valley floor, especially hillside estates with iron gates, get corrosion eating at brass pins and aluminum cylinders. The plug stops turning, and then a key snaps off. We carry marine-grade replacement cylinders for exactly this failure mode, and we fit stainless hardware on gate posts where brass has already failed once.
- Stripped smart lock gears on original door frames. Motorized deadbolts fight swollen wood, and the gear loses. We replaced 41 failed smart locks in a single July in Lafayette, all on original solid-wood 1960s door frames. The fix is a properly sized strike plate, a frame adjustment, and in some cases a retrofit to a higher-torque mechanism.
- Discontinued gate keypad and intercom systems. The estates above downtown often use gate controllers installed in the early 2000s. The proprietary boards inside are now discontinued. If your keypad stopped accepting codes, we carry retrofit adapters for the aging controllers Lafayette’s hillside properties still use.
Pricing for Residential Locksmith in Lafayette, CA
Lock changes in Lafayette run $65 – $150 per lock depending on hardware grade. Deadbolt installation runs $95 – $220 including the bolt and labor. Rekeying a standard knob or deadbolt runs $40 – $85 per cylinder. Window lock installation runs $35 – $90 per window. Emergency lockout service runs $95 – $180 depending on time and lock type. Every quote is written before work starts, and the phone estimate you receive is the price on the invoice. No call-out surcharge added on arrival. Call (910) 714-4287 for a free estimate.
We Also Serve Cities Near Lafayette
Our residential locksmith coverage extends beyond Lafayette to Lafayette‘s neighboring communities: Walnut Creek, Orinda, Moraga, and Pleasant Hill. Same written pricing, same Threshold Standard vetting, same 365-Day Done Right Promise. If you’re just over the city line, you’re not out of our area.
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 Residential Locksmith in Lafayette
Because the wood frame absorbs heat and expands, typically enough to move the strike plate out of alignment by 1 – 2 millimeters, which is all it takes to jam a deadbolt. Lafayette’s summer heat regularly hits 95 – 105°F, and original 1950s – 1970s door frames were never milled for that kind of movement. The fix is realigning the strike plate or installing an oversized strike with a deeper pocket so the bolt has room. We do this all summer long. Call (910) 714-4287 and we’ll quote it before coming out.
Usually, yes. A seized cylinder from corrosion or heat-swollen hardware can often be freed with penetrating lubricant, a pick, and controlled pressure. Drilling is the last resort, and we only do it after trying non-destructive methods and explaining the cost of a replacement cylinder to you first. The exception is a broken key inside the plug, which sometimes forces drilling. Either way, you get a written price before the destructive option is used.
Rekeying changes the internal pins so the old keys stop working; the hardware stays in place. Replacing removes the entire lock and installs new hardware. Rekeying in Lafayette runs $40 – $85 per lock. Replacement runs $65 – $150 per lock plus the cost of hardware, which can go higher for Baldwin or Medeco. If the hardware is in good shape, rekeying is the cheaper and faster security fix. Call (910) 714-4287 and we’ll tell you which makes sense for your doors.
Yes, and the reason is simple: brass and standard aluminum corrode faster when salt-bearing air sits on the metal year-round. Hillside gate cylinders on the Diablo Valley floor are the worst offenders. We fit marine-grade cylinders and stainless strike plates on gate hardware that has already failed once. The cost premium is modest, roughly $15 – $40 per component over standard hardware, and it buys years of smooth operation. If your gate key is getting stiff, call (910) 714-4287 before it seizes completely.
Yes. We keep retrofit adapters in van stock for the discontinued controllers Lafayette’s hillside estates installed in the early 2000s. A recent Reliez Valley Road estate called us after their intercom gate keypad quit accepting codes on a shared hillside driveway. We pulled the obsolete board, fitted a marine-grade keypad entry unit with a retrofit adapter, and rekeyed the matching Medeco deadbolt at the front door so one key still ran the whole property. If your keypad is dead, the fix is often same-day. Call (910) 714-4287 and describe the system; we’ll tell you if we carry the adapter for it.
Written by Perry Osgood, Owner at Dunmore Locksmith, serving Lafayette since 2007.