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 Change Door Locks Across Los Altos Hills
Changing door locks in Los Altos Hills usually costs between $145 and $410, depending on whether you need a simple rekey, new hardware, or high-security cylinder work on an estate gate system. Most jobs on the winding lanes off Purissima Road, Stonebrook Drive, or Elena Road are completed the same day we arrive. Our Residential Locksmith in Los Altos Hills team has served homeowners here since 2007, and our technicians know the town’s private easements, gated entries, and sprawling lots better than any dispatch center in the Bay Area. Call (910) 714-4287 and you’ll get a live person, a written price, and a named technician before anyone drives to your gate.
Key takeaways:
- Written price before work starts, no exceptions, no arrival surcharges.
- Background-checked technician sent to you by name and photo before the visit.
- 365-Day Done Right Promise: if the repair fails, we return at no charge.
- Patented key systems (Mul-T-Lock, Medeco, ASSA Abloy) serviced through proper key control, not kiosk copies.
Why Dunmore Locksmith Is Los Altos Hills’s Preferred Change Door Locks Company
Los Altos Hills has no commercial district, no street grid, and no big-box hardware store inside town limits. That changes how locksmithing works here. Every job starts with a pre-arrival call to confirm the gate code, shared driveway marker, or secondary easement reference. Our Change Door Locks team has learned that a technician who skips that call ends up lost on a private lane, burning the appointment. We don’t skip it.
Homeowners here are particular about who comes through the gate. Dunmore Locksmith is part of Threshold Group, the network built around a simple idea: you should know exactly who is at your door before you open it. Every technician is background-checked, identity-verified, and sent to you by name and photo before arrival. At the door, they show a photo ID badge. If someone shows up who you were not told to expect, that visit is covered at no charge. That’s the Threshold Standard, and it matters more on a Los Altos Hills estate than almost anywhere else in the Bay Area.
Door Lock Installation in Los Altos Hills
Door Lock Installation in Los Altos Hills is rarely a simple swap. Homes here were mostly custom-built from the 1960s through the 1980s on one-acre minimum parcels, so the front entry often carries a high-security mortise lock, while secondary doors still have original Schlage or Kwikset pin-tumbler hardware. A proper installation means matching the security level of each door to how it’s actually used, then confirming every cylinder operates smoothly in the marine-layer climate.
Estate Entry Hardware
Main entries on tall doors frequently use mortise locks with multi-point locking rods. Los Altos Hills Door Lock Repair for these entries is not a five-minute job. We mortise the door correctly, align strike plates across the full height, and verify that the deadbolt and multipoint hardware engage without binding. The fog off the coastal hills warps door frames over decades, so we test the full throw of every bolt.
Smart Lock and Access Integration
When a Los Altos Hills homeowner has a Lutron-integrated entry or a smart lock tied to an alarm system, we install hardware that speaks to the existing controller. That means confirming protocol compatibility before drilling anything, and running a full lock-unlock cycle through the app before we leave. The old hardware comes off cleanly, and the new cylinder gets pinned to the same keyway spec if you want one key for the whole property.
Patio Door Lock Change in Los Altos Hills
Patio Door Lock Change in Los Altos Hills often involves sliding glass doors that open onto pools, decks, or hillside terraces. Those locks get hit by fog moisture, pollen, and seasonal temperature swings, and a cheap pawl lock from the 1980s is not going to stop a determined entry. Replacing it with a proper mortise-style patio lock or adding a secondary bolt runs $95 to $260 per door, depending on hardware grade and whether the track needs alignment.
Sliding Door Security
Most sliding patio doors in this town were installed decades ago and have a simple hook latch that anyone can defeat with a screwdriver. We replace those with keyed patio locks or add a foot bolt at the base. On doors with worn tracks, we adjust the rollers first so the lock engages squarely; a lock installed on a misaligned track will fail within months.
Multi-Point French and Garden Doors
French doors and garden entries on older estates often carry multi-point hardware with rods running top and bottom. A Patio Door Lock Change here means swapping the cylinder and confirming all points throw at once. The coastal moisture that settles into Los Altos Hills overnight can seize those rods if they aren’t lubricated. We clean and lubricate as part of the job, which is the difference between a lock that works for a year and one that corrodes by November.
Trusted Brands We Service in Los Altos Hills
We service and install Schlage, Kwikset, Medeco, and Yale hardware, and we’re factory-authorized on high-security lines including Mul-T-Lock and ASSA Abloy. For Los Altos Hills customers, that matters because half the town runs on key-controlled systems where copies can only be cut through an authorized channel. We keep common Schlage and Kwikset pinning kits on the truck for same-day rekeys, and we can order restricted blanks for Medeco or Mul-T-Lock cylinders without making you drive to San Jose. If your hardware is still under manufacturer warranty, we handle that paperwork too.
Common Change Door Locks Problems We See in Los Altos Hills Homes
- Marine-layer corrosion on outdoor gate locks and keypads. The coastal fog that rolls up the hills on summer evenings keeps exposed cylinders damp for weeks. Mechanisms seize, keys snap, and keypads stop registering codes. We clean, lubricate, and replace corroded parts during a routine lock change, not as a surprise add-on.
- Contractors with old keys after a remodel. Los Altos Hills sees constant teardown-replacement construction. A departing contractor or housekeeper with a copied Schlage key is a real risk. A rekey (changing the internal pins so old keys no longer work) runs $95 to $260 and is the fastest way to close that hole.
- Patented key systems that can’t be copied at a kiosk. Homes with Mul-T-Lock, Medeco, or ASSA Abloy cylinders have keys that no hardware store can duplicate. If you need to remove someone’s access, you don’t need new hardware; you need the cylinder rekeyed through the restricted dealer network. We are that dealer.
- Misaligned strikes on tall, heavy entry doors. Decades of settling on hillside lots shifts door frames. A new deadbolt in a misaligned frame will wear out fast. We check the strike plate, adjust or replace it, and confirm the bolt throws fully before calling the job done.
Pricing for Change Door Locks in Los Altos Hills, CA
Here’s what Los Altos Hills homeowners should expect to pay, in writing, before we start:
- Standard deadbolt replacement: $145 to $260
- Rekey a single existing lock (old keys stop working): $95 to $180
- High-security cylinder replacement (Mul-T-Lock, Medeco, ASSA): $210 to $410
- Patio door lock change with track alignment: $95 to $260
- Mortise lock cylinder swap on tall entry door: $180 to $340
- Gate keypad cleaning, lubrication, and reprogramming during a lock change: $60 to $140
The price we quote on the phone is the price on the invoice. No call-out surcharge is added when we arrive, no vague “it depends” after we’ve started. If the job turns out to be larger than expected, we stop and bring you a new written price before touching another screw. Call (910) 714-4287 for an exact quote. Estimates are free.
We Also Serve Cities Near Los Altos Hills
If you own property outside Los Altos Hills, we regularly handle Change Door Locks in Los Altos Hills and the surrounding Bay Area cities, including San Jose, San Francisco, Los Angeles, and San Diego. The same Threshold Standard applies: named technician, written price, and a 365-day guarantee on every job.
Serving Los Altos Hills, CA - Our Local Coverage Area
We’re based in the Los Altos Hills 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 Change Door Locks in Los Altos Hills
We ask for the gate code or the secondary driveway marker before dispatch. Our Los Altos Hills customers live on private easements and shared driveways with no street grid, so a pre-arrival call is standard procedure for every job. We arrive at the correct entry point the first time, and our technician is sent to you by name and photo before the visit so you know who to look for at the gate. Call (910) 714-4287 and we’ll get the access details sorted before anyone drives out.
Yes, and this is one of the most common mixed-security setups we see in Los Altos Hills. The Schlage cylinders can be rekeyed so the old key no longer turns, and the patented main-entry key gets controlled through the restricted dealer network; no kiosk copy is possible. We took a call off a shared easement near the Purissima Road corridor where a teardown-replacement estate had exactly this mix: a Mul-T-Lock high-security cylinder on the front and 1970s Schlage hardware on the pool house and side door. We rekeyed the Schlage and confirmed key control on the Mul-T-Lock the same afternoon. Call (910) 714-4287 with your lock types and we’ll give you a written price before anyone leaves the office.
Yes. Marine-layer moisture is a year-round reality in Los Altos Hills, and exposed gate hardware at the end of long driveways corrodes faster than anything on the house itself. During a lock change, we clean and lubricate the gate cylinder, check the keypad contacts, and replace corroded parts before they seize completely. On that same Purissima Road job, the fog had seized the outdoor gate keypad; we cleaned the cylinder, confirmed ANSI Grade 1 deadbolt function, and reprogrammed the keypad entry before leaving. It’s built into the job, not a surprise add-on. Call (910) 714-4287 for a quote that covers the gate and the door together.
It won’t if the replacement hardware is chosen for compatibility. Many Los Altos Hills estates run Lutron or similar control systems tied to smart locks, and swapping in a random deadbolt can absolutely break the automation. We confirm the communication protocol before installing, then run a full lock-unlock cycle through your app before we leave. If the existing smart lock is the problem, we can replace it with a model that talks to the same controller. Call (910) 714-4287 and describe your setup; we’ll tell you exactly what hardware works and what it costs.
In most cases, just the cylinder. Mortise lock bodies on the tall entry doors common in Los Altos Hills are built to last for decades, and replacing the whole unit means more invasive work on the door. Unless the lock body is physically damaged or worn beyond adjustment, we swap the cylinder, cut new keys, and the job is done for $180 to $340. If the body does need replacement, we’ll tell you before any work starts and give you a written price for the full unit. Call (910) 714-4287 and we can usually diagnose it over the phone from the door’s age and brand.
Dunmore comes from old words for a great fort, a stronghold built to keep what is inside safe. That’s the standard we hold for every Change Door Locks job in Los Altos Hills. Call (910) 714-4287 for a free estimate, a written price, and a technician you’ll know by name before the gate opens.
Written by Perry Osgood, Owner at Dunmore Locksmith, serving Los Altos Hills since 2007.