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 Brentwood
Changing door locks in Brentwood usually costs between $95 and $185 for a standard rekey on a builder-grade Kwikset or Schlage entry set, and runs higher when you move into patented key control or multi-point hardware. Most jobs in Brentwood’s 1995 – 2010 subdivisions are done same-day, often within 90 minutes of your call. We know these tracts because we work them every week: Deer Ridge, Shadow Lakes, Garin Ranch, and the streets off Balfour Road. Call (910) 714-4287 and we’ll give you a written price before anyone heads your way.
Why Dunmore Locksmith Is Brentwood’s Preferred Change Door Locks Company
Brentwood homeowners call us for a specific reason: the technician who shows up is the person we told you would show up. Perry Osgood runs our Brentwood lock-change work, and every tech arrives in a marked uniform with a photo ID badge held up to the peephole. We send you the name and photo of your tech before the visit. That’s the Threshold Standard, and it matters more here than in most places, because so much of Brentwood’s housing stock still carries the same construction keys that were handed out to contractors and real estate agents when these subdivisions went up.
Our Brentwood customers tell us the same thing on repeat: they didn’t realize their side gate and garage service door were never rekeyed. We check every exterior opening, not just the front door. And we back every lock change with the 365-Day Done Right Promise, written on the invoice. If the lock fails within a year, we return at no charge.
Response time to most Brentwood neighborhoods runs 45 to 75 minutes during normal hours. Overnight calls are answered by a live person, not a machine, and a tech is dispatched from the Bay Area office to your door. You’ll know the price on the phone, in writing, before dispatch.
If you’re in Brentwood and need a lock changed, call (910) 714-4287. You’ll get a straight answer about cost and timing before you hang up.
Door Lock Installation in Brentwood
Door lock installation in Brentwood typically runs $145 to $385 for a complete entry set replacement on a standard single-family home, depending on the hardware grade and whether you’re moving to a smart or key-control cylinder. This is the job where we remove the old knob or handle, install the new deadbolt and latch, align the strike plate, and test the throw bolt under real tension – not just a quick turn and a handshake. In Brentwood’s summer heat, a misaligned strike is the difference between a lock that works and a lock that binds when the steel frame swells past 100°F. We install to that reality.
When a Brentwood homeowner needs a new lock, it’s usually one of three moments: a resale closing, a break-in or attempted entry, or a worn original cylinder that no longer turns smoothly. On resales, we see the same pattern across Deer Ridge and Shadow Lakes: the front door got a quick rekey, but the garage entry door, side gate, and patio slider are still on the old construction key. Our Change Door Locks team checks every opening.
What a Brentwood door lock installation includes
We show the written quote before work starts. That number covers the hardware, the install, and any strike plate adjustment needed for a clean throw. If your door slab is warped or the frame is out of square from two decades of Brentwood’s hot-and-cold swings, we’ll tell you what that means for the install before we cut anything.
When to install instead of rekey
If the cylinder is worn enough that the key sticks or jiggles loose, a new install beats another rekey. Same goes for smart-lock retrofits on original hollow-core doors. We’ll tell you plainly if your existing hardware is worth keeping.
Patio Door Lock Change in Brentwood
A patio door lock change in Brentwood generally falls between $120 and $240 for a standard sliding glass door, higher if you have a multi-point lock on a tall or high-end door. The original sliding patio locks in Brentwood’s boom-era homes were skimpy – a thin pawl that grabs a stamped keeper. Two decades on, many are misaligned, corroded from sprinkler overspray, or just loose enough to lift from the outside. We replace the lock body, align the keeper plate, and add a secondary foot bolt or pin lock if your slider is a real entry point.
Every Brentwood subdivision handles patio doors a little differently. In Shadow Lakes and the hillside streets around Deer Ridge Country Club, many sliders sit on the back of two-story homes where the evening Delta breeze blows straight across the yard. That constant air pressure rattles a loose patio lock to failure faster than in the older, inward-facing lots closer to downtown Brentwood.
Patio door lock replacement before a resale
Brentwood resales are the moment when patio locks get exposed. Buyers ask for all exterior locks rekeyed or changed. Sellers often forget the patio slider was never connected to the main key system. We check it on every home-sale lock change, and we’ve found patio doors still on the original construction key more times than any of us can count.
Adding a keyed patio lock where there wasn’t one
Some Brentwood patio doors only have an interior latch, no key cylinder. If that’s you, we can add a keyed lock or a keypad entry so the slider is a controlled, secure opening instead of an unlocked glass wall. The price we quote on the phone is the price you pay.
Trusted Brands We Service in Brentwood
We’re factory-authorized on Schlage, Kwikset, Medeco, and Yale, and we stock common cylinders and hardware for Brentwood’s most popular entry sets. That means a lock change on a 2003 Deer Ridge home with an original Kwikset doesn’t stall waiting on a part from a warehouse two days out. When we move you into patented key control, it’s usually Medeco or Schlage Primus depending on your door and your budget. For tall-door multi-point hardware, we service Baldwin and a handful of European makes common in Brentwood’s higher-end homes. We’ll match your existing finish wherever possible.
Common Change Door Locks Problems We See in Brentwood Homes
- Construction keys still in circulation. Whole tracts in Deer Ridge and Shadow Lakes were sold with locks keyed alike to a single developer master. Many original owners never rekeyed, so the side gate and garage door still open for anyone who held a construction key years ago. We find this on resales constantly.
- Summer thermal binding on deadbolts. Brentwood’s inland heat regularly pushes past 100°F, and steel door frames expand. The deadbolt throw bolt then drags against the strike plate, and the lock feels broken. It’s usually alignment, not the cylinder. We fix the geometry instead of forcing the lock.
- Builder-grade Kwikset cylinders wearing out on a 20-year clock. Most of Brentwood’s 1995 – 2010 homes still have their original entry sets. After 15 to 25 years of daily use and Delta air, the pin chambers and springs wear to the point where keys stick, turn sloppy, or stop working entirely. Rekeying a tired cylinder often isn’t enough.
- Half-done resale rekeys leaving side doors exposed. A realtor calls a cheap rekey on the front door only. The garage service door and side gate keep the old key. Former contractors and agents still have access. We see this weekly in Brentwood’s resale cycles, and we fix it in one visit.
Pricing for Change Door Locks in Brentwood, CA
Standard rekeying of a single cylinder in Brentwood runs $95 to $150. Changing out an entry set with a new Kwikset or Schlage deadbolt and knob or lever typically falls between $145 and $260. Moving to a patented key-control cylinder like Medeco usually lands between $185 and $385 per cylinder, and a multi-point tall-door setup starts around $320. The variables are your door prep, the hardware grade, and whether we’re building a master key system across multiple openings. You’ll get a written price on the phone before we dispatch, and that number is the number on your invoice. No call-out surcharge added at the door. Call (910) 714-4287 for a free estimate.
We Also Serve Cities Near Brentwood
Our Brentwood lock-change team covers the full city and regularly runs calls to Oakley, Discovery Bay, Antioch, and Byron. If you’re just outside the city line in one of those areas, call (910) 714-4287 and we’ll give you a straight answer on availability and pricing. The same written quote and 365-day guarantee apply wherever we dispatch.
Serving Brentwood, CA - Our Local Coverage Area
We’re based in the Brentwood 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 Brentwood
On a resale home in Deer Ridge or any Brentwood boom-era tract, you should at minimum rekey every exterior opening, including the garage service door and side gate. If the original cylinders are worn or you want key control so keys can’t be copied at a kiosk, a full replacement with a patented cylinder is the stronger move. We’ll inspect each lock and give you a written price before any work starts. Call (910) 714-4287 for an exact quote.
Usually not. What you’re feeling is thermal expansion: the steel door frame swells in Brentwood’s inland heat, and the deadbolt throw bolt binds against the strike plate. We realign the strike and adjust the door rather than replacing a cylinder that’s actually fine. If the cylinder is worn, we’ll tell you. A trained tech should handle this, and we’ll diagnose it on-site at (910) 714-4287.
Yes. We build and extend master key systems on Schlage, Kwikset, Medeco, and Yale platforms. If some locks in your Shadow Lakes home are on a master and others are still on the old construction key, we can bring every opening onto one controlled system in a single visit. The written quote covers the whole scope. Call (910) 714-4287 with your door count and we’ll price it on the phone.
It depends on the existing hardware. Many tall doors with multi-point locks need a retrofit plate or a compatible smart cylinder, not a bolt-on deadbolt that fights the multi-point gear. On standard entry doors, a keypad deadbolt from Schlage or Yale integrates cleanly with most smart-home hubs. We’ll tell you what fits your door before you buy anything. Call (910) 714-4287 for a written estimate.
Yes, this is a core Brentwood service for us. We replace sliding patio locks, add keyed cylinders to sliders that only have an interior latch, and service multi-point patio hardware on tall doors. Most patio lock changes in Brentwood run $120 to $240 depending on the hardware. Call (910) 714-4287 and we’ll give you the exact number before dispatch.
Written by Perry Osgood, Owner at Dunmore Locksmith, serving Brentwood’s lock-change needs through the Threshold Group since 2007.