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 Alamo
Door lock repair in Alamo usually comes down to one of three problems: a latch that no longer aligns with the strike plate, a cylinder that binds when you insert the key, or a knob assembly that spins without engaging the bolt. Most repairs take 45 to 90 minutes on site and run between $95 and $240, parts included, with the full price confirmed in writing before we dispatch. If you’re off Danville Boulevard or tucked back on a gated driveway near Stone Valley Road, we know the streets, we know the homes, and we answer the phone live when you call (409) 405-4485.
Why Preston Locksmith & Security Is Alamo’s Preferred Door Lock Repair Company
We’re the locksmith for Alamo because our process removes the two things that make homeowners hesitate before calling anyone: waiting around and wondering what the bill will actually be. Preston Locksmith & Security, founded in 2008 and part of the Relay Home Co. family, built its reputation on the Relay Visibility Guarantee: a scheduled arrival time you can track live, before-and-after photos of the work, and a written price handed over before a single tool leaves the bag. Kevin Yoon leads our team, and every technician who shows up in Alamo is background-checked, uniformed, and drives a truck you can identify from the curb.
Alamo homeowners are phone-first. They book a repair from the kitchen island, expect a real ETA, and want the invoice emailed before the tech pulls out of the driveway. That’s exactly how we operate. No voicemail trees. No callback queues. A live person answers 24/7, and the price quoted on that call is the price on your invoice. No trip fee stacked on after the fact, no surcharge for showing up. If the repair fails within 365 days, we come back free under the Done Right Promise. That promise is written on every job we do in Alamo.
Door Lock Latch Repair in Alamo
Door lock latch repair in Alamo deals with the part that physically bolts into the door frame, and it is the single most common call we run here. The latch is what you see when you open the door: a small spring-loaded tongue that retracts when you turn the knob or deadbolt. When that tongue no longer slides cleanly into the strike plate on the frame, the door either won’t latch shut or won’t open without a fight. In Alamo, where many homes were built with solid wood doors that move through Bay Area heat and humidity cycles, this is far more likely than a broken cylinder.
A typical latch repair in Alamo runs $95 to $165, which includes adjusting or replacing the latch, repositioning the strike plate, and testing the door through ten open-close cycles before we call it done. We stock common latch profiles for Schlage, Kwikset, and Baldwin hardware in our trucks, so we usually finish this in under an hour. If the mortise pocket in the door frame has been hacked out by a previous repair, we rebuild it with a fresh wood block and route a clean seat so the strike plate sits flush. That’s shop-grade work done on-site, not a handyman patch.
Strike plate alignment on wood-prepped custom doors
Alamo’s front doors are typically solid-core wood, set into custom jambs that shift a few millimeters every year. When the door sags, the latch no longer lines up with the strike plate, and the deadbolt feels jammed even though the cylinder is fine. We shim, re-align, and torque every screw to the jamb stud. If a screw hole has stripped out, we fill it with a hardwood dowel and re-drill so the repair holds for years, not weeks.
Master-keyed side doors and pool-gate latches
Many Alamo properties run one key across the front entry, the detached garage door, and the pool gate. A latch repair on any of those doors has to preserve the keying schedule. Before we pull a latch, we verify the cylinder’s keyway and make sure the replacement hardware matches the key control plan. We don’t swap a Kwikset latch for a Schlage-profile unit and hand you back a key that only works on two of three doors. Alamo is spread out enough that you don’t want to chase that problem across a long driveway.
Door Knob Lock Repair in Alamo
Door knob lock repair in Alamo covers the handle assembly itself: the knob or lever you grab, the spindle it turns, and the spring cage that returns the knob to center. When a knob spins freely without retracting the latch, or when it flops instead of springing back, the internal spring cage has typically broken or the spindle has worn loose. In Alamo homes with Baldwin and Yale entry sets, these are common wear items after ten to fifteen years of daily use. The good news: in most cases, we repair the existing hardware rather than replacing the whole set.
Typical door knob lock repair in Alamo runs $85 to $190, depending on whether we’re replacing a spring cage, a spindle, or the full knob assembly on a mortise-style lock. For older Baldwin or Yale mortise knobs, we open the lock body on site and replace the internal springs and spindle. That preserves the original brass finishes and the look of the door, which matters in Alamo where custom front doors are part of the home’s curb appeal. Figure 45 to 75 minutes for most knob repairs.
Mortise knob bodies on classic Alamo entry sets
A mortise lock has a rectangular body mortised into the edge of the door, with the knob spindle passing through. Older Alamo homes often have these, and they’re worth repairing rather than replacing. We open the case, clean the internal components, replace any broken springs or worn spindles, and lubricate with a dry graphite or PTFE lube that won’t gum up over time. A replacement mortise knob set can run into the hundreds, so a $120 repair on the original body is usually the right move.
Levers and handlesets on interior doors
Interior door knobs in Alamo take a beating from kids and house guests, and the spring cage inside the knob is the part that fails. We carry Kwikset and Schlage spring cages and spindles in the truck, so this is often a 30-minute fix. If the knob is beyond repair and you want a match to existing hardware, we quote the replacement knob at cost plus labor before we start. No upsell pressure, no “while we’re here” surprises.
Trusted Brands We Service in Alamo
Our technicians train on Kwikset, Medeco, Yale, and Baldwin hardware, plus Schlage and Mul-T-Lock for commercial and high-security jobs. We stock the most common Kwikset and Baldwin latch profiles, spindles, and cylinders on our trucks so most Alamo repairs don’t require a parts run. Medeco and Mul-T-Lock are a different animal: they use restricted keyways with patented key control, and repairs have to preserve that integrity. Kevin’s team handles those with factory-authorized pins and parts, never generic aftermarket hardware. If you have an older Yale mortise lock or a Baldwin handleset with a worn finish, we can source the exact part or find a direct match.
Common Door Lock Repair Problems We See in Alamo Homes
- Deadbolts that bind after summer heat cycles. Alamo gets dry Bay Area summers with big temperature swings between day and night. Wood doors expand and contract, and the deadbolt that worked fine in April feels seized by September. This is usually a strike plate alignment and latch adjustment, not a replacement cylinder.
- Long gated driveways that hide the real scope of the job. A door lock repair on a home off Stone Valley Road or Las Trampas Road often means the front entry, a side garage service door, and a pool gate all feed one key system. We always walk the full site before we write the final quote. A phone-only price that doesn’t account for that access path or multiple doors undercounts the real job.
- Master key schedules broken by a previous quick-fix. If someone replaced a cylinder on the front door without matching it back into the system, your key now works only on some doors. We rebuild the keying schedule so one key turns every lock you intended it to.
- Stripped latch screws on old jamb wood. Custom door jambs from the 1970s and 80s often have stripped screw holes behind the strike plate. A repair that just tightens the same screws will fail again in a month. We fill, dowel, and re-drill so the hardware anchors properly.
Pricing for Door Lock Repair in Alamo, CA
We quote every Alamo job with a flat, written price before dispatch. No hourly billing, no trip fee added when we arrive, no “parts extra” games. A standard latch repair runs $95 to $165. Door knob lock repair runs $85 to $190. A deadbolt cylinder re-cut runs $75 to $115, and if the deadbolt itself needs replacement, expect $120 to $240 including hardware and installation. Mortise lock repairs on older Alamo fronts go $130 to $260 depending on internal wear. What moves the needle: hardware brand, finish matching, access path, and whether the door jamb needs wood repair. You get the full price on the phone before we roll, and that’s the price on your invoice. Call (409) 405-4485 for a free estimate.
We Also Serve Cities Near Alamo
While this page focuses on Alamo, our team regularly handles Door Lock Repair for homeowners in Walnut Creek, Moraga, Lafayette, and Danville. Same written-price promise, same live-arrival tracking, same Done Right Promise. If you’re in Alamo, we’re local. If you’re just over the town line, we’re still 20 minutes out.
Serving Alamo, CA - Our Local Coverage Area
We’re based in the Alamo 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 Alamo
No. In most Alamo homes, this is a latch-and-strike alignment problem caused by the door shifting through heat and humidity cycles, not a failed cylinder. We re-align the strike plate, adjust the latch, and re-cut the cylinder if the pin stack is worn. Replacement is the last option, not the first. Call (409) 405-4485 and we’ll tell you exactly what’s wrong before we touch a tool.
No trip fee, no teaser. We quote a flat written price on the phone before dispatch, and that’s the price you pay. The number we give includes labor, parts, and the service call. Alamo’s long driveways and gated entries don’t trigger an access surcharge, either. If we’re told to walk the full site before quoting, we do that at no cost.
Before our tech leaves the shop, you get a name, a photo, and a live tracking link showing the truck’s arrival. The tech is background-checked, in a Preston uniform, and carries a badge. You’ll match the face to the photo before you even open the gate. On arrival, we show the written quote first. No tools come out until you approve the price.
Yes. Mortise lock repair is standard for us. We open the lock body, clean the internals, replace broken springs or worn spindles, and lubricate it correctly. Most repairs run $130 to $260, far less than a replacement set that would also alter the look of a custom front door. If the body is cracked or the deadbolt is stripped, we’ll show you the damage and quote replacement honestly.
Most latch and knob repairs in Alamo take 45 to 90 minutes from the time we park. Our crews coordinate from the brand’s San Francisco Bay Area office, so we’re usually on site within the same window we quoted. We send before-and-after photos and a digital invoice with a pay link before we leave the driveway. Call (409) 405-4485 for an exact time and price.
When you call (409) 405-4485, a live person answers. You’ll get a written price before dispatch, a trackable arrival time, and a background-checked technician who identifies themselves at the door. Every Alamo repair carries the 365-Day Done Right Promise and a written guarantee. If it fails, we return free. No gimmick, no bait, no bill that changes. That’s the only way we’ve worked in Alamo since we started taking calls here.
Written by Kevin Yoon, Owner at Preston Locksmith & Security, serving Alamo since 2008 through the Relay Home Co. family.