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 Colton
Changing door locks in Colton usually costs between $95 and $240 for a standard knob or deadbolt swap, and most jobs are finished the same day we get the call. That range covers the lock itself, the labor to remove the old hardware, and rekeying the new cylinder to match your existing key if you want that. If you live in Colton and need fresh locks after a tenant moves out, a lost key, or a break-in attempt, call us at (910) 714-4287. Perry Osgood and our crew know exactly which doors in this city will accept a modern drop-in lock, and which ones need actual woodwork before anything will latch right.
Why Dunmore Locksmith Is Colton’s Preferred Change Door Locks Company
Colton’s housing stock is not like Riverside’s or Loma Linda’s. Here, a lot of what we walk into was framed in the 1950s and 1960s, and the doors have been through 50 or 60 San Bernardino Valley summers. That means a lock change in Colton is rarely as simple as unscrewing one deadbolt and screwing in another. We show up knowing that, which is why landlords and homeowners across Colton keep our number in their phones. Every technician who comes to your door is background-checked, identity-verified, and sent to you by name and photo before the visit under what we call the Threshold Standard. You see exactly who to expect before you open the door.
Our work in Colton covers everything from a quick knob swap on a rental near Colton High School to a full mortise-to-deadbolt conversion on a 1960s track home off Valley Boulevard. We stock the cylinders and strike plates that older Colton doors actually need, not just the fresh-from-the-box bored locksets that most suppliers push. And every job gets our 365-Day Done Right Promise in writing: if the lock change fails within a year, we come back at no charge.
Patio Door Lock Change in Colton
Patio door lock change in Colton typically runs between $120 and $280, depending on whether you have a sliding glass door with a mortise-style latch or a swinging patio door with a standard keyed knob and deadbolt. Sliding patio doors in Colton’s older rentals often have original aluminum frames with latch hardware that has seized from years of thermal cycling, and a replacement lock frequently means retrofitting the frame, not just swapping the handle. Swinging patio doors on 1960s homes often carry a keyed knob that has been drilled out or rusted solid from the valley heat. We replace the lock and cylinder, realign the strike if the door has settled, and key it however you need, matched to the rest of the house or standing alone.
Sliding Glass Door Retrofits
The sliding patio doors on Colton’s post-WWII rentals were rarely designed for modern security. The original latch is often a thin zinc die-cast unit that snaps under pressure. When we change one, we remove the old latch, verify the rail is still square, and install a keyed or unkeyed replacement that actually seats. If the door has sagged, we flag that separately because a new lock on a sagging rail will just bind again in the next heat wave.
Keyed Swing Door Conversions
Some Colton homes have a swinging patio door with no keyed lock at all, just a thumb turn inside. That is a real vulnerability on ground-floor rear doors. We bore and install a keyed deadbolt if the door slab can take it, or replace the entire handle set with a keyed entry lockset if the door is too thin for a separate deadbolt. We give you the written price before any drilling starts.
Door Lock Change in Colton
Door lock change in Colton generally costs $95 to $210 for a standard bored knob or deadbolt swap on a door that is in decent shape. If the door has an original mortise lock body from the 1950s or 1960s, the price moves to $180 to $340 because we are either rekeying the mortise cylinder or converting the door to accept a modern deadbolt, which means precision boring and keeping the old cavity from turning into a hollow mess. On Colton’s rental properties, this is the job we do most: a tenant has left, the keys are out in the world somewhere, and the owner needs the old key dead and a new one working before the next lease is signed. We key the new lock to match the owner’s existing master key or set up a fresh keyway and hand over every copy, accounted for.
Mortise Lock Rekey vs. Replacement
Here is the honest answer for Colton doors: not every mortise lock needs to be ripped out. If the mortise body is still sound and the cylinder is a compatible format, we rekey it in place for far less than a full replacement. The old key stops working, a new key starts, and the landlord keeps a period-correct lock that actually fits the door. But if the body is wallowed from decades of use, or the cylinder format is so obsolete that no pin kit or blanks exist, we tell you straight: this one needs to come out. Then we convert the door to a modern deadbolt and knob layout, and we quote that price before we cut anything.
Thermally-Cycled Strike Plates
Colton doors bake in summer. The metal expands, the wood around the hinges and strike shrinks and swells, and after enough years the latch no longer lines up with the plate. A surprising number of lock change calls in Colton begin as a “broken lock” and turn out to be a misaligned frame. When we change the lock, we check the strike alignment and the reveal around the door slab. If the strike needs a nudge, we do it as part of the job rather than leaving you with a brand new deadbolt that still sticks.
Trusted Brands We Service in Colton
The hardware we install on Colton doors is what we would put on our own homes. We stock and service Kwikset, Medeco, and Schlage cylinders and locksets locally, which means we are not waiting on a parts drop from Los Angeles when your rental on a street off La Cadena Drive needs a working deadbolt today. For older Colton doors that still carry an obsolete mortise cylinder, we keep adapters and conversion kits that let a modern Schlage or Kwikset cylinder fit into a door we would rather not re-bore. Medeco high-security work is available for Colton landlords and commercial tenants who want restricted keyways and patented key control. When we quote a brand, we tell you why it fits the door you actually have, not just the one that is easiest to sell.
Common Change Door Locks Problems We See in Colton Homes
- Original mortise bodies that are too wallowed to trust. Decades of key turns wear the internal surfaces of a mortise lock until the latch does not fully retract. We can sometimes rekey and keep the body, but when the mechanism is sloppy we tell you it is time for a bored deadbolt instead.
- Doors that bind in afternoon heat and get misreported as lock failures. A Colton door that will not close at 4 p.m. in August usually has a frame problem, not a lock problem. The lock is fine; the wood and metal moved. We fix the strike or the hinge alignment so the new or existing lock actually operates.
- Low-grade deadbolts on hollow-core doors. A one-inch throw into a hollow-core slab will not stop a determined shoulder. When we change locks, we check what the deadbolt is actually anchored into. If the door is too weak to support the lock, we say so and quote an upgrade to ANSI Grade 1 hardware along with a solid-core or reinforced door edge if needed.
- Obsolete cylinder formats nobody stocks pins for anymore. Some 1960s Colton homes have cylinders from long-discontinued builders’ hardware lines. The key blanks are gone, and so are the pin kits. We identify these fast and convert the door to a modern Kwikset, Schlage, or Medeco cylinder rather than leaving you with a lock that can never be rekeyed again.
Pricing for Change Door Locks in Colton, CA
A standard knob or deadbolt change on a healthy Colton door runs $95 to $210, including the new hardware we bring to the site. Patio door lock work lands between $120 and $280. Mortise lock rekeying or conversion sits at $180 to $340 because of the extra fitting and precision boring. The price on the phone, before anyone is dispatched, is the price on your invoice. No call-out surcharge gets added when we arrive. If your door needs the mortise-to-deadbolt conversion, we quote the boring, the hardware, and the new deadbolt as one number before we start. Call (910) 714-4287 and we will walk through what kind of door you have and what the honest options are. The estimate is free.
We Also Serve Cities Near Colton
Our Change Door Locks team works throughout the Inland Empire. Along with Colton, we regularly serve Grand Terrace, Loma Linda, Riverside, and San Bernardino. If you are in any of those cities and need a lock changed on a schedule, call us and we will route a technician to you. Scheduling is coordinated from our Inland Empire office, and crews serve Colton locally every day.
Serving Colton, CA - Our Local Coverage Area
We’re based in the Colton 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 Colton
Yes, in most cases we can rekey the existing mortise cylinder in place, which changes the key and keeps the original lock body. We do this routinely on 1950s through 1970s Colton homes. The exception is when the mortise body itself is mechanically worn out, in which case a rekey would just put new pins into a failing lock. We will tell you which situation you actually have before we do the work. Call (910) 714-4287 and describe your door; we can usually tell from the photos whether a rekey is realistic.
Most likely not. Colton’s summer heat causes the wood door slab and the metal strike plate to expand at different rates, so the latch misses the strike and the door refuses to shut or latch. The lock mechanism itself is often fine. Our fix starts with checking the reveal and alignment, then correcting the strike position or hinge adjustment rather than replacing a perfectly good lock. We will not sell you a deadbolt you do not need.
Yes, and it is a large part of our daily work. We serve landlords throughout Colton, from single-family rentals near Agua Mansa Road to multi-unit properties in older neighborhoods. We rekey between tenancies, replace worn deadbolts with ANSI Grade 1 hardware, and can set up a master key system so every unit opens with one owner key while each tenant key only works its own door. We quote per lock in writing and give you a receipt so you have the rekey date on record for tenant turnover disputes.
We keep Kwikset, Schlage, and Medeco cylinders and locksets stocked locally, along with adapters and mortise conversion kits for doors with the original 1950s and 1960s hardware that is so common in Colton. That means we can usually finish a lock change the same day without waiting on parts. If your door needs a specialty cylinder, we tell you what lead time is involved before you commit.
On a solid, well-fitted Colton door, a smart lock from Schlage or Kwikset is a fine choice and we install them regularly. On a warped or sagging original door, the smart lock will bind in the heat just like any other lock, and the keypad batteries will degrade faster under San Bernardino Valley temperatures. The honest sequence is to fix the door fit first, then add the smart hardware. We will tell you if your door is a good candidate before you spend the money. For an exact quote on a smart lock or keypad install in Colton, call (910) 714-4287.
Written by Perry Osgood, Owner at Dunmore Locksmith, serving Colton and the Inland Empire as part of the Threshold Group since 2007.






