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 Lock Installation & Rekey Across South San Francisco
Lock installation and rekey in South San Francisco typically runs $95-$260 depending on the lock’s age, cylinder format, and whether the existing mortise body can be saved. Most rekey jobs in South San Francisco take under an hour at the door. We serve every neighborhood in South San Francisco, from Signal Hill to Paradise Valley to the downtown flats near Grand Avenue, with a live person answering the phone 24/7 at (331) 310-8471. The price we quote on the phone is the price on the invoice. No call-out surcharge added on arrival. No bait pricing. That rule has been in place since 2002 and it is not optional.
This page is written for South San Francisco specifically, because the locks here behave differently than locks ten minutes inland. The fog that rolls over Sign Hill and down through Westborough Boulevard carries salt that works its way into cylinder pins. The housing stock is old enough that original Kwikset and Schlage hardware from the 1950s and 1960s is still common. And the biotech corridor along East Grand Avenue and Oyster Point runs on restricted keyways that most residential locksmiths never stock. We cover all of it.
Why Novak Lock & Security Is South San Francisco’s Preferred Lock Installation & Rekey Company
Novak Lock & Security is led by Daniel Novak, and the company has been independently owned and operated since 2002. We do not operate from a franchise model and we do not dispatch unmarked vans with rotating contractor crews. Every technician who arrives in South San Francisco is background-checked, uniformed, and trained on The Haven Standard, the documentation framework that governs how we quote, how we work, and how we leave a job. The same standard applies to every one of the 60,000+ locks, keys, and systems we have installed or serviced.
South San Francisco customers ask for specifics, not slogans, so we give specifics. A documented photo record is left at every job, showing the condition of the hardware before and after. A written scope of work accompanies every commercial rekey on the Grand Avenue corridor and every residential lock installation in Signal Hill. And if a competitor’s written estimate comes in lower, we will review it at no charge and tell you honestly whether the lower number reflects lower-grade hardware or a thinner scope. That is our Lock Installation & Rekey policy, and it applies in every city we serve.
Response time to South San Francisco is typically 25-45 minutes for emergency call-outs, depending on whether you’re near Oyster Point Boulevard, El Camino Real, or the hills above Chestnut Avenue. We coordinate dispatch from the San Francisco Bay Area office and crews serve South San Francisco locally. When you call at 2 a.m. from a condo near Westborough Boulevard, a live person answers. No queue. No callback window.
Our Lock Installation & Rekey Services in South San Francisco

We install, rekey, and service the full spectrum of lock hardware across South San Francisco, from entry-grade residential deadbolts to restricted-keyway commercial systems. The four services below are the ones South San Francisco homeowners and property managers ask about most.
Smart Lock Installation
Smart lock installation in South San Francisco starts with the door, not the lock. In the post-WWII tract homes around Signal Hill and Paradise Valley, the original cross-bore is often 1-1/2 inches, while most modern deadbolts require a 2-1/8-inch bore. Forcing the larger hole through the edge of a hollow-core door can crack it. We measure first, tell you if the door can take the lock, and quote the full modification in writing before any work starts. If the door will not support a smart lock without a door replacement, we tell you that too. We have installed Yale, Schlage Encode, and August smart locks throughout South San Francisco, and we configure the app, the keypad codes, and the backup key override before we leave.

Keyless Entry
Keyless entry in South San Francisco is common in the dense rental stock near downtown and along Airport Boulevard, where landlords need to rotate access between tenants without rekeying the cylinder every time. We install keypad and proximity-based entry systems, program multiple user codes, and hand you a printed code log. For rental units in the 1950s duplexes near Westborough Boulevard, we will also rekey the mechanical backup cylinder so the previous tenant’s key is fully retired, not just the code. Nobody should be able to turn a physical key into a unit where the code has changed.

Keypad Lock
Keypad locks in South San Francisco are a practical upgrade for the city’s 1940s-1960s housing stock, where doors are often thinner than modern construction. We install residential keypad deadbolts and lever-entry keypad locks from Schlage, Kwikset, and Yale, and we re-key the mechanical override at the same time. If your original door has a worn strike plate or a misaligned latch, we repair that before installing the new hardware. A keypad on a door that does not close square will bind and fail within a season, and we will not install a lock that way.

Biometric Lock
Biometric locks in South San Francisco are now showing up in residential and small commercial settings, not just the access-controlled suites at Oyster Point. We install fingerprint and keypad combination locks, program up to dozens of user profiles, and explain the failure modes honestly: cold, wet fingers from a foggy morning commute can sometimes require a second scan, and every biometric lock still ships with a mechanical key override. If you are installing biometric hardware on a door in South San Francisco, we will ensure the override cylinder is a high-security format so the biometric convenience does not create a mechanical weak point.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in South San Francisco
We are factory-authorized on Medeco, Mul-T-Lock, Baldwin, and Schlage hardware, and we carry the cylinders, pins, and tailpieces in stock for the lock formats most common in South San Francisco. That inventory matters here because the city’s older mortise locks and restricted keyways do not accept generic parts. A Medeco M3 cylinder cannot be rekeyed with standard Schlage pins, and a Baldwin mortise body on a 1960s storefront on Grand Avenue will not take a modern residential latch. When we arrive at a South San Francisco job, we are carrying what the hardware requires. That is the difference between a one-trip repair and a two-week parts wait.
Our service area for this work is South San Francisco, and we stock parts specifically for the lock formats that turn up in this city’s housing and commercial stock.
Common Lock Installation & Rekey Problems We See in South San Francisco Homes

- Salt-corroded cylinders from the bay fog. The marine layer that sits over South San Francisco pushes salt-laden moisture into exterior lock cylinders year-round. Seized pins and frozen cam follower springs are the single most common service call we run in Signal Hill, Paradise Valley, and the flats. This is noticeably worse here than in San Bruno or San Mateo, which sit further from the Bay.
- Original 1940s-1960s hardware on hollow-core doors. Many South San Francisco tract homes still have their original Kwikset or Schlage entry hardware. The cylinders are rekeyable, but the doors themselves often cannot accept a modern deadbolt without modification. We assess the door, not just the lock, and quote accordingly.
- Mortise lock failures on Grand Avenue storefronts. The mid-century commercial buildings along Grand Avenue and South San Francisco’s older downtown corridors still use mortise lock bodies. When the internal cam follower spring corrodes, the lock will not retract smoothly. A rekey-only job sometimes becomes a cylinder replacement, and we carry Medeco and Baldwin mortise cylinders locally.
- Improperly rekeyed rental units. In South San Francisco’s dense rental stock, we see units where a previous tenant’s key still turns in a cylinder that was supposedly “rekeyed” by borrowing pins from another keyway family. That creates an uncontrolled master key situation and a genuine security violation. We rekey using brand-correct pins and hand you a documented key-control record.
Pricing for Lock Installation & Rekey in South San Francisco, CA
Here are the dollar ranges for South San Francisco’s market, quoted in writing before anyone is dispatched.
- Standard residential rekey: $95-$140 per cylinder, including new keys and a written key-control log.
- Smart lock installation: $180-$320 depending on whether we are modifying an existing bore or installing fresh hardware on a solid-core door.
- Keypad lock installation with rekeyed mechanical override: $150-$260.
- Biometric lock installation: $220-$380 including programming and user-profile setup.
- Mortise cylinder rekey or replacement on a Grand Avenue storefront: $120-$260 depending on whether the cam follower spring is intact.
- High-security restricted-keyway rekey (Medeco, Mul-T-Lock, Abloy): $180-$340 per cylinder, including key-control documentation.
- Commercial access-control or biometric entry system per door: quoted as a written scope, flat per-lock price, surveyed and scheduled.
These ranges reflect what we actually bill in South San Francisco. The final number depends on the condition of your existing hardware, the cylinder format, and whether a door modification is required, but that number is quoted on the phone before dispatch and it is the price on the invoice. The 365-Day Done Right Promise covers every installation and rekey: if it is not done right, we make it right, with no invoice for the follow-up.
We Also Serve Cities Near South San Francisco

Novak Lock & Security serves South San Francisco and the surrounding peninsula communities, including Daly City, San Bruno, Pacifica, and Burlingame. If you manage rental property across multiple cities or need consistent key-control documentation across a portfolio, we apply the same Haven Standard procedure on every job, in every city.
Serving South San Francisco, CA - Our Local Coverage Area
We’re based in the South San Francisco 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 - Lock Installation & Rekey in South San Francisco

Yes, in most cases. The salt-laden fog over South San Francisco accelerates corrosion inside exterior cylinders, and we frequently see locks in Signal Hill and Paradise Valley that require cylinder service every 3-5 years instead of the 8-10 you would expect inland. A rekey with fresh pins and a proper cleaning is often enough to restore function. Replacement is only necessary when the cam follower spring has corroded through or the cylinder body itself is pitted. We will show you the internals before we quote either path. Call (331) 310-8471 for an exact quote - estimates are free.
It depends on the condition of the mortise body and the cam follower spring. We have rekeyed original mid-century mortise locks on Grand Avenue storefronts by replacing only the cylinder core and keeping the original body. But if the internal spring has corroded through, which the South San Francisco fog does to these locks regularly, a full mortise body replacement is the honest fix. We carry Medeco and Baldwin mortise cylinders and bodies stock locally, so the replacement can usually be completed the same day. Call (331) 310-8471 to describe your lock and we will tell you which path is likely.
Yes, if the existing cross-bore is large enough. Many 1950s hollow-core doors in South San Francisco duplexes have a 1-1/2-inch bore, and a modern keypad deadbolt requires 2-1/8 inches. We can bore the door larger on site, but we do it with a jig and a backer plate so the door edge does not crack. We will also rekey the mechanical override so the previous tenant’s key is retired completely. The full scope is quoted in writing before we start.
Yes. We handle restricted-keyway rekeying and key-control documentation for biotech and pharmaceutical clients along East Grand Avenue and at Oyster Point. That includes Medeco M3 and Schlage Primus systems where the keyway is patent-protected, and key-control logs that track every key issued and returned. We have been turned away at security desks before for showing up without restricted-keyway inventory; we do not let that happen to our customers. Commercial rekeying is surveyed and scheduled, with a written scope and a flat per-lock price before we begin.
Rekeying is almost always cheaper, and often the better repair. You have effectively two options in South San Francisco: rekey existing cylinders for $95-$140 per cylinder, or replace worn low-grade hardware with new Grade 1 or Grade 2 locks for roughly $150-$260 per lock depending on brand. If the original 1960s Schlage body is still sound, a rekey restores security for less. If the cylinder is salt-corroded or the latch is sloppy, replacement is the better value and we will tell you that directly. Call (331) 310-8471 and we will walk you through the decision on the phone, with a written quote before dispatch.
We rekeyed a 1950s tract home near Westborough Boulevard in Signal Hill where the original Kwikset deadbolt had frozen solid. Salt air had seized three of the five pins. Instead of drilling, we carefully picked the cylinder, swapped in new pins, and rekeyed it in under 45 minutes. The homeowner had been told by another shop they would need to replace the entire lock and mortise plate. The mortise body was still sound; only the cylinder core needed servicing. That is the kind of repair South San Francisco’s housing stock rewards, and it is the kind we are built for.
In South San Francisco, the same salt-laden fog that rusts lock cylinders in Signal Hill also demands restricted-keyway systems at Oyster Point. A locksmith without key-control documentation templates is shut out of the city’s dominant biotech revenue stream. That is why Novak Lock & Security carries restricted cylinders, maintains key-control logs, and shows up ready for both the 1950s deadbolt and the DEA-compliant lab corridor. The city runs on both, and so do we.
For lock installation and rekey in South San Francisco, call (331) 310-8471. You will get a live person, a written price before dispatch, and a documented photo record when the job is done. No call-out surcharge. No changed price at the door. That is the whole point of calling Novak Lock & Security.
Written by Daniel Novak, Owner at Novak Lock & Security, serving South San Francisco with written-price lock installation, rekeying, and commercial key-control documentation.






