Preston Locksmith & Security locksmith team

Locksmith in San Mateo - On-Site Fast, Price Quoted Before We Drive

You get the full price before we set off, and that is the number on the invoice. Licensed, insured, background-checked locksmiths covering the whole area.

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Every visit starts with

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.

Styles & brands we work with

House lockouts
House lockouts
Re-keying
Re-keying
Deadbolt upgrades
Deadbolt upgrades
Smart locks
Smart locks
Schlage
Schlage
Kwikset
Kwikset
Car keys & fobs
Car keys & fobs

Locksmith in San Mateo, CA

Locksmith work in San Mateo is shaped by the housing stock: a lot of mid-century ranchers and 1970s condo complexes with hardware that has been through decades of coastal air, repainting, and tenant turnover. That means we spend most of our days on worn cylinders, misaligned strike plates, and locks that are still original to buildings constructed before modern deadbolt standards existed. If you need a Locksmith in San Mateo, CA, call (409) 405-4485 and we will give you a written price before a single tool leaves the bag.

Call (409) 405-4485

Why San Mateo Homes Are Different

San Mateo sits in a marine climate corridor, and the morning fog does real work on metal hardware. Locks near exterior doors collect condensation, and older brass and zinc cylinders corrode from the inside. We regularly see deadbolts that turn fine during the summer but bind in December. That is not a bad lock, it is a clearance problem caused by seasonal moisture and temperature shift, and it is one of the most common San Mateo call-outs we handle.

The terrain matters too. Homes in the hills above 3rd Avenue and along the Crystal Springs corridor sit on slopes where doors settle and strike plates drift out of alignment over a few years. A lock that worked when it was installed may now require a shoulder adjustment or a larger strike plate because the door slab has shifted a quarter inch. Down in the flats, near downtown and the area around Hillsdale, the bigger issue is older construction: original 1960s and 1970s hardware that was not built for modern security expectations. We address both patterns differently, and we always quote the fix in writing before starting.

Our Main San Mateo Services

The two calls we take most from San Mateo homeowners are rekeying after a move or tenant change, and door lock repair on hardware that has finally worn out. Here is what each actually involves here.

Commercial Locksmith in San Mateo

Downtown San Mateo has a dense run of ground-floor retail and professional offices, many in buildings that share common entries and rear service doors. Storefront owners call us when a door closer fails and lets the door swing too hard into a lock, when a key breaks off in a filing cabinet or storefront cylinder, and when an employee leaves and management needs restricted key control rather than a basic rekey. We carry commercial-grade hardware from Medeco, Sargent, and Mul-T-Lock on the truck, and we schedule a written scope with flat per-lock pricing. See our Commercial Locksmith in San Mateo page for the full breakdown.

Commercial Locksmith in San Mateo

Rekey Locks in San Mateo

Rekeying means swapping the internal pins inside a cylinder so the old keys stop working. It does not require new hardware, and it is the fastest way to control who has access after a home purchase, a roommate departure, or a property-management turnover. In San Mateo, we rekey a lot of homes near Hillsdale and the 19th Avenue corridor when renters change, and we rekey plenty of condos where HOA rules require key replacement between occupants. The price is per cylinder, confirmed in writing before we start. Read more on our Rekey Locks in San Mateo page.

Rekey Locks in San Mateo

Door Lock Repair in San Mateo

Most door lock repair in San Mateo is not a broken lock. It is a binding deadbolt, a latch that will not retract smoothly, a strike plate that no longer aligns, or a key that only works when you wiggle it just right. Coastal air accelerates internal wear, and older doors in this city have often been repainted enough times that the hardware tolerances are gone. We rebuild, lubricate, and realign before we sell you a replacement, and if a replacement is genuinely needed, we show you the part and the written price before doing the work. See our Door Lock Repair in San Mateo page for specifics.

Door Lock Repair in San Mateo

Residential Locksmith in San Mateo

Residential work here spans everything from a single deadbolt replacement in a San Mateo Park bungalow to full door hardware updates in a Hillsborough-adjacent estate. We rekey after move-ins, install new deadbolts where the builder hardware is ready for retirement, and repair strike plates and latches that have suffered from years of door settling. We arrive with Schlage, Kwikset, Yale, and Baldwin parts on the truck, and we always confirm the written price before touching a screwdriver. Details are on our Residential Locksmith in San Mateo page.

Residential Locksmith in San Mateo
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What happens when you call

  1. 1
    A real person answersNo phone trees - you reach a local pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched.
  3. 3
    A background-checked tech heads outLicensed & insured, dispatched right away.
  4. 4
    You approve before work beginsNothing starts until you say go.

Brands We Service in San Mateo

We service Kwikset, Medeco, Yale, and Baldwin hardware on San Mateo calls, and we keep the most common replacement parts from each brand on the truck. When we need something less common, our San Francisco Bay Area dispatch can usually have it in hand the same day. See our brands page for the full list of what we are equipped to handle.

Pricing for Locksmith in San Mateo, CA

Service Typical range in San Mateo
Residential lockout $85 – $160
Rekey standard cylinder $20 – $30 per cylinder
Rekey mortise cylinder $25 – $45 per cylinder
Deadbolt replacement $90 – $220 installed
Entry knob or lever replacement $70 – $170 installed
Strike plate realignment $45 – $95
Door closer adjustment or replacement $85 – $240
Commercial lockout $95 – $180
High-security cylinder install (Medeco or Mul-T-Lock) $150 – $350 per cylinder
Storefront door lock replacement $160 – $420
Panic bar or exit device service $140 – $380

The price can shift up in San Mateo when hardware requires non-standard parts that need a supplier run, or when a door has settled enough that a simple rekey becomes a realignment job. What will not change is the number on the invoice: the price we write down before starting is the price you pay, with no call-out surcharge added when the technician arrives.

Neighborhoods We Serve in San Mateo

We run calls across San Mateo daily, from the downtown grid to the hills and the neighborhoods along El Camino Real. Our typical response window in the city is 30 to 60 minutes after you book.

  • San Mateo Park
  • Hillsdale
  • 19th Avenue corridor
  • Baywood
  • Shoreview

Service Area – Cities Near San Mateo

We regularly serve the surrounding peninsula, including Burlingame, CA just north of San Mateo, Belmont, CA to the south, Millbrae, CA near the airport, and San Carlos, CA down the 101 corridor. Scheduling and dispatch are coordinated from our San Francisco Bay Area office, with crews serving San Mateo locally.

Serving San Mateo, CA - Our Local Coverage Area

We’re based in the San Mateo 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 Locksmith in San Mateo

Ready to get started? Free estimates · 60-minute response in San Mateo
Call (409) 405-4485

What happens when you call

  1. 1
    A real person answersNo phone trees - talk to a local locksmith pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
  3. 3
    We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
  4. 4
    You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.

What San Mateo Customers Say

★★★★★ 5.0 from 3+ reviews

"Showed me how to rekey a lock myself for the next time."

- Omar W.

"Commercial office lock replacement. Booked in the app, got a confirmation and a text with ETA. Quick and tidy."

- Jake L.

"Re-pinned the locks at our rental. Convenient and quick."

- Tina D.

How It Works in San Mateo

Getting your locksmith handled is simple and fast.

1

Call or Request a Free Estimate

Tell us about your locksmith needs and we provide an upfront, transparent quote - no obligation, no hidden fees.

2

Licensed Technician Dispatched

A background-checked, certified technician arrives in San Mateo - typically within 30-60 minutes, with parts stocked on the truck.

3

Problem Solved, Guaranteed

We complete the job to your full satisfaction, backed by our warranty and 100% satisfaction guarantee.

Current Offers

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Price Quoted Before We Drive

The number you are given on the phone is the number on the invoice.

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Always

Written Price Before Any Work Starts

Expires Mar 31, 2027
Included

Written Guarantee on Every Repair

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Free

Free Second Visit if the Repair Fails

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Areas We Serve
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