Change Locks San Francisco: Same-Day Lock Replacement
Change locks San Francisco: residents and businesses trust us for same-day service, 7 AM–11:30 PM, 7 days a week. Licensed locksmiths on-site in 15-20 minutes.
4.9★ from 212 Google reviews
What's included
Change locks San Francisco price: from $80
Lock change / replacement: $80–$180 per lock, depending on the hardware. Plus a $29 service call. You get the exact price on the phone before we come. Call Now: (415) 205-5718
Our average response time across San Francisco is under 20 minutes. Once we arrive, a standard deadbolt change takes about 15 to 30 minutes per lock. Most homeowners are holding new keys in their hand within 45 minutes of dialing (415) 205-5718.
It depends on condition and goal. Rekeying works when hardware is solid but you want new keys. A full lock change is smarter when locks show wear, you want a security upgrade, or you need a completely different lock style. Our technicians assess your setup free of charge and recommend what actually makes sense.
Change locks San Francisco: handling every situation
Life events drive the decision to change a lock. Moving into a new apartment. Ending a relationship. Letting an employee go. Losing your keys at Dolores Park. Each of these moments carries a specific security risk, and each one calls for a swift lock change service. When you need to change a lock, every hour matters.
Here is what most people do not realize. According to the FBI's Uniform Crime Report, 55.7% of burglaries involve forcible entry, but a staggering 36.2% happen through unlocked or easily accessible doors. A compromised key is essentially an unlocked door. Changing locks closes that gap immediately. For homes needing more than a lock change, our residential locksmith team handles rekeying, deadbolt upgrades, and smart lock installations in the same visit.
From Pacific Heights condos to Sunset District row homes, our technicians carry a full inventory of residential and commercial lock hardware in every service van. No second trips. No waiting for parts.
Residential lock changes
Your home is your anchor. We install and change deadbolts, knob locks, smart locks, keypad entry systems, and multi-point locking mechanisms for every type of San Francisco housing. Studio apartment, Victorian flat, or modern townhome. We match the lock to the door and the security level to your needs.
Commercial lock changes
Businesses face different pressures. Employee turnover, lease transitions, and break-in attempts all demand swift lock changes. We work with Grade 1 commercial hardware, panic bars, access control systems, and master key setups. Our commercial clients include retail shops in the Mission, offices in SoMa, and restaurants in North Beach.
Ready to secure your property with brand-new locks?
Free estimates. No hidden fees. Open 7 AM–11:30 PM, 7 days a week.
Best lock change experts San Francisco trusts since day one
Trust is not negotiable when someone enters your home to change your locks. That is exactly why credentials matter. Ace Locksmith SF is fully licensed by the State of California Bureau of Security and Investigative Services (BSIS License), bonded, and insured. Every technician passes a background check and carries photo ID.
But credentials only tell half the story. The other half is results.
We stand behind every job with a 90-day warranty and straightforward pricing.
What sets us apart
- Average arrival time: 15-20 minutes across all San Francisco neighborhoods
- Upfront pricing quoted before any work begins
- 90-day warranty on all lock installations and labor
- Technicians carry 40+ lock models in every van
- Over 10 years of dedicated service in San Francisco
- Same-day service, including holidays and weekends
Types of locks we change for San Francisco properties
Not every lock is the same, and your choice of replacement hardware matters. We walk you through every option so you make a confident decision. Here are the most common lock types we install during a lock change.
Standard deadbolts
The backbone of residential security. Single-cylinder deadbolts work with a key on the outside and a thumb turn inside. They meet most building code requirements and offer strong resistance to forced entry. We carry ANSI Grade 1 and Grade 2 deadbolts from Schlage, Kwikset, and Medeco.
Smart locks
Keyless convenience without sacrificing security. Smart locks let you lock and unlock with your phone, a PIN code, or even your fingerprint. Popular choices include the Schlage Encode, August Wi-Fi Smart Lock, and Yale Assure Lock 2. Ideal for Airbnb hosts, busy families, and anyone tired of carrying keys.
High-security locks
For properties that demand the highest level of protection. Brands like Medeco, Mul-T-Lock, and ASSA Abloy use patented keyways, pick-resistant pins, and drill-resistant housings. These locks are virtually bump-proof and come with restricted key blanks so copies cannot be made without authorization.
Keypad and electronic locks
A practical middle ground between traditional deadbolts and full smart locks. Keypad locks require a code, not a key. They are excellent for offices, shared spaces, and rental properties. No app required, no batteries-dead lockout worries with backup key options.
Mortise locks
Common in older San Francisco Victorians and commercial storefronts. Mortise locks sit inside a pocket cut into the door edge, offering exceptional strength and durability. Changing a mortise lock requires precision, and our technicians have deep experience with these heritage-style installations.
What should you do? common reasons to change a lock
Not sure if you need to change a lock? Here are the most common situations our San Francisco customers face. If any of these sound familiar, you already know the answer.
You just moved in
Former tenants, their friends, old dog walkers, cleaning crews. You do not know who has a copy. Change a lock on every exterior door before you unpack your first box. Our lock change service gets it done in a single visit.
A relationship ended
A breakup or divorce means someone who once had full access no longer should. Changing locks is not dramatic. It is a basic, responsible step. A professional lock change service handles it discreetly and quickly.
You lost your keys
Lost keys are found keys for someone else. If your keys disappeared at a bar, a park, or on Muni, assume the worst and change a lock on every door the same day. If the lock hardware is also worn, our lock repair and replacement team can upgrade the hardware at the same time. If you also need a set of car keys cut while we're there, our technicians carry blanks for most makes.
An employee was terminated
When staff leave on bad terms, lock changes protect your inventory, data, and team. We handle multi-door commercial lock changes in a single visit.
Your locks are old or damaged
Locks that stick, jam, or show visible wear are locks that can fail. A burglar can exploit a worn lock in seconds. Fresh hardware eliminates that vulnerability. If you're not sure whether you need new locks or simply got locked out, our emergency lockout locksmith in San Francisco team can open the door first and talk through lock change options once you're back inside.
A break-in or attempted break-in
Even if the intruder failed, a compromised lock is no longer trustworthy. Replace it immediately and consider upgrading to high-security hardware.
How to prepare when you need to change a lock in San Francisco
A little preparation on your end helps our technicians work faster and deliver a cleaner result. Here is what to do before and after your appointment to change a lock.
Before your appointment
- Count your doors. Walk through your property and note every exterior door that needs a new lock. Include side gates, garage entries, and back doors.
- Check your door condition. Look for warped frames, misaligned strike plates, or damaged door edges. Let us know so we bring the right tools.
- Decide on your security level. Standard deadbolt, smart lock, or high-security? Think about your budget and daily routine.
- Gather old keys. Collect every copy of your current keys. This helps us confirm that all old keys are accounted for.
- Clear the doorway area. Move shoes, plants, furniture, or anything blocking easy access to the door and lock hardware.
- Inform household members or tenants. Make sure everyone who lives or works in the space knows about the lock change and when it will happen.
- Have ID ready. We may need to verify that you are authorized to change the locks at the property.
- Ask about key copies. Decide in advance how many spare keys you need so we can cut them during the same visit.
After your lock change (5 steps)
- Test every lock and key. Open and close each new lock several times from both sides. Confirm the deadbolt extends fully and retracts smoothly.
- Distribute keys carefully. Only give copies to people you fully trust. Keep a record of who holds each key.
- Update smart lock codes. If you installed electronic or smart locks, set your personalized code and delete any default codes.
- Store your warranty info. We provide a 90-day warranty card. Keep it somewhere safe with your home records.
- Schedule a follow-up if needed. If you want to add secondary locks, security cameras, or a master key system, we can plan that next step with you.
Lock change service FAQ: questions San Francisco customers ask
How much does a lock change cost in San Francisco?
Lock change / replacement runs $80–$180 per lock, plus a $29 service call. High-security locks and smart locks land at the top of that range because of the hardware itself. We always confirm the exact number by phone before starting work. Call Call Now: (415) 205-5718.
Is changing locks cheaper than rekeying?
Rekeying is generally less expensive per lock because it reuses your existing hardware. However, if your locks are old, worn, or low-grade, rekeying saves money now but leaves you with the same weak hardware. A full lock change costs more upfront but delivers new, warrantied hardware with years of reliable service. Our technicians help you weigh both options honestly.
Do you charge extra for nights, weekends, or holidays?
We are transparent about our pricing at every hour. While many locksmith companies add steep surcharges for after-hours calls, Ace Locksmith SF keeps our pricing fair and consistent. Your quote includes everything: parts, labor, and trip charge. No surprises when the invoice arrives.
Does insurance cover the cost of changing locks?
Some homeowner's and renter's insurance policies cover lock changes after a burglary, attempted break-in, or lost keys. It depends on your specific policy. We provide a detailed receipt that you can submit to your insurance company for reimbursement. Contact your provider to check your coverage before or after the service.
How much does it cost to change locks on a whole apartment?
A typical San Francisco apartment has 1 to 3 exterior locks. Changing all of them in a single visit is the most cost-effective approach because you only pay one trip charge. We offer multi-lock discounts when you change 3 or more locks at the same time. Call us at (415) 205-5718 with your door count and we will quote you instantly.
How long does it take to change a lock?
A single lock change takes 15 to 30 minutes depending on the lock type and door condition. Smart lock installations may take closer to 30 to 45 minutes due to setup and programming. If you need multiple locks changed, plan for about 20 minutes per lock. We complete most residential lock change jobs within 1 hour.
How fast can you get to my location?
Our average response time is 15-20 minutes across San Francisco. We have technicians stationed throughout the city, from the Richmond to the Bayview, so there is almost always someone nearby. For scheduled appointments, we arrive within the agreed time window. For emergency calls, we dispatch immediately.
Can I schedule a lock change for a specific day and time?
Absolutely. While we handle many same-day and emergency calls, we also schedule appointments at your convenience. Morning, afternoon, evening, or weekend. Just call (415) 205-5718 and we will lock in a time that works for your schedule.
Do you offer same-day lock change service?
Yes. Same-day service is our standard, not a premium add-on. Most lock change calls are completed within 2 hours of the initial phone call. We carry the inventory in our vans, so there is no need to order parts or come back another day.
How many locks should I change when I move into a new home?
Change every exterior lock. That includes the front door, back door, side door, and any door leading from the garage into the house. The National Association of Realtors estimates that 6 to 10 people may have had keys during a typical home sale process. Contractors, inspectors, stagers, agents, and previous owners all may hold copies.
How many spare keys do I get with a new lock?
Most new locks come with 2 keys. We can cut additional copies on-site during your appointment, usually 3 to 5 extras depending on your needs. High-security locks with restricted keyways may limit the number of copies and require authorization cards for future duplicates.
How often should locks be changed?
Security professionals recommend changing locks every 7 to 10 years under normal use. However, you should change them immediately after any life event that involves access changes: a move, a breakup, lost keys, employee turnover, or a security incident. A worn lock with 50,000+ cycles of use is also a candidate for replacement.
My lock is hard to turn. Should I change it or fix it?
A stiff lock might just need lubrication or a minor adjustment. But if it is old, corroded, or has been stiff for a while, replacement is the safer choice. Our technician will inspect the lock and give you a straight answer. Sometimes a competitive rates fix solves it. Other times, the internal pins are worn beyond reliable function and a new lock is the right call.
Can you change a lock if the key broke inside it?
Yes. We first extract the broken key fragment, then assess the lock cylinder. If the cylinder is undamaged, we can rekey it. If the broken key caused internal damage, we replace the entire lock. Either way, we resolve the situation in a single visit.
Be honest: do I really need to change my locks after a breakup?
Yes, and here is why it matters. You cannot unknow a key copy. Even if your ex returned their key, they could have made duplicates at any hardware store for under competitive rates. Changing your locks is not about distrust. It is about giving yourself a clean baseline of security. It takes 20 minutes and gives you a clean baseline of security.
My landlord won't change the locks. Can I do it myself?
In San Francisco, tenants generally have the right to change locks at their own expense, but you must provide a copy of the new key to your landlord (California Civil Code 1941.3). We handle these situations regularly and can advise you on the proper steps. Just keep the old lock so you can reinstall it when you move out.
Who provides the best lock change service in San Francisco?
Ace Locksmith SF has been changing locks across San Francisco for over 10 years. Our licensed, bonded, and insured team arrives in under 20 minutes with everything needed to complete your lock change on the spot.
What makes Ace Locksmith SF the best lock change service in San Francisco?
Three things set us apart. First, speed: a 15-20 minute average response time, 7 AM–11:30 PM, 7 days a week, across every SF neighborhood. Second, transparency: upfront quotes with no hidden fees, ever. Third, quality: we use only ANSI-rated lock hardware from trusted manufacturers and back every installation with a 90-day warranty.
Where can I find the best lock change service in San Francisco for my business?
Ace Locksmith SF serves commercial clients across every San Francisco district. We specialize in Grade 1 commercial hardware, master key systems, panic bars, and access control. If you manage a single storefront or multiple locations, we provide fast, discreet, professional lock changes that keep your business secure. Call (415) 205-5718 to discuss your commercial needs.
Do I need a lock change if I lost my keys but the locks still work fine?
Yes, a lock change is strongly recommended when keys are lost even if the locks function normally. Lost keys can be found and used by anyone to enter your property. A lock change eliminates that risk entirely by ensuring no old key works on your doors. Ace Locksmith SF completes most lock change jobs within an hour of your call.
Can you perform a lock change on a door with a non-standard size or vintage hardware?
Yes. Ace Locksmith SF handles lock change jobs on non-standard doors including thick commercial doors, narrow-stile glass doors, and vintage San Francisco Victorians with mortise hardware. Our technicians carry adapters and specialized hardware to complete your lock change regardless of door type or age.
What is the difference between a lock change and a lock upgrade?
A lock change replaces your current lock with new hardware of the same security grade, while a lock upgrade means your lock change includes moving to a higher-security product such as a smart lock, high-security deadbolt, or keypad system. Ace Locksmith SF offers both options during every lock change appointment so you can choose the level of protection that fits your needs.
Lock change glossary: terms worth knowing
Understanding a few key terms helps you make smarter decisions during your lock change.
- Deadbolt
- A lock bolt that must be manually turned by a key or thumb turn. Unlike spring bolts, deadbolts resist forced entry because they cannot be pushed back without the correct key.
- Rekeying
- Changing the internal pin configuration of an existing lock so that old keys no longer work and new keys are required. The lock body itself stays in place.
- ANSI Grade
- A rating system from the American National Standards Institute that ranks lock durability. Grade 1 is the strongest (commercial), Grade 2 is standard residential, and Grade 3 is basic residential.
- Bump-Proof
- A lock designed to resist "bump key" attacks, where a specially cut key is used to manipulate standard pin tumbler locks. High-security locks from Medeco and Mul-T-Lock offer bump resistance.
- Strike Plate
- The metal plate mounted on the door frame that the lock bolt slides into. A reinforced strike plate with 3-inch screws significantly improves kick-in resistance.
- Master Key System
- A keying arrangement where individual locks have their own unique keys, but one master key can open all locks in the system. Common in commercial and multi-unit residential buildings.
- Restricted Keyway
- A patented key profile that prevents unauthorized key duplication. Only the original locksmith or authorized dealers can cut new copies, adding a layer of key control.
- Mortise Lock
- A lock installed inside a rectangular pocket (mortise) cut into the edge of the door. Common in older San Francisco homes and commercial storefronts, known for durability and strength.
New locks, new keys, full control.
When you change a lock with Ace Locksmith SF, you get new hardware, a fresh start, and full control over who enters your space, with quality locks installed by licensed professionals who care about doing the job right. Our lock change service also covers changing locks on commercial properties, rental units, and multi-door buildings.
When you change locks San Francisco-wide with Ace Locksmith SF, you get honest pricing, fast response times, and hardware that lasts. Every job comes with a 90-day warranty and the promise that if you ever need us again, we will be there in 15-20 minutes.
Your security deserves a phone call. Make it the right one.
Ace Locksmith SF • 3675 24th St, San Francisco, CA 94110 • Open 7 AM–11:30 PM, 7 days a week
Door lock replacement in San Francisco
When you search for door lock replacement San Francisco or want to replace door locks San Francisco-wide, this is the service: full removal of the old hardware and installation of new, warrantied locks the same visit. Lock replacement San Francisco homeowners request most often follows a move-in, a lost key, or hardware that is simply worn out: a straightforward home lock replacement swaps the cylinder and exterior trim for something reliable. It is the same lock replacement service whether you need one door or every exterior lock changed at once, including situations where you are calling a locksmith to change locks on a house after a tenant or contractor had access.
New lock installation in San Francisco
Looking for door lock installation near me, or need a new lock installation San Francisco can turn around fast? We install new deadbolts, knob locks, and door latch installation jobs on doors that never had hardware before, plus lock cylinder swaps and full lock installation systems for multi-door properties. Even on short notice lock change requests, the job is usually finished within a single visit. If you are comparing door lock installers near me, ask about our licensed, background-checked technicians and same-day availability.
Not every call is about locks at home: if you are locked out of an office, our office lockout service in San Francisco gets your business back open, and if you are stuck outside your vehicle, our car lockout service in San Francisco team responds just as fast. Need a spare cut too? Our guide on replacing car key hardware covers what to expect.
Lock change San Francisco: same-day service
Whether you need a home lock change San Francisco landlords require between tenants, a general lock change San Francisco service, or a same-day lock change service San Francisco homeowners trust, we handle it in one visit.
How it works
Our simple process gets you the help you need quickly and efficiently.
Call us
Contact us 7 days a week, 7 AM-11:30 PM by phone or form
We arrive
Technician arrives in 15-20 minutes
Get a quote
Upfront pricing before we start
Problem solved
Expert service from a licensed locksmith
Frequently asked questions
Do I need a lock change if I lost my keys but the locks still work fine?
Yes, a lock change is strongly recommended when keys are lost even if the locks function normally. Lost keys can be found and used by anyone to enter your property. A lock change eliminates that risk entirely by ensuring no old key works on your doors. Ace Locksmith SF completes most lock change jobs within an hour of your call.
Can you perform a lock change on a door with a non-standard size or vintage hardware?
Yes. Ace Locksmith SF handles lock change jobs on non-standard doors including thick commercial doors, narrow-stile glass doors, and vintage San Francisco Victorians with mortise hardware. Our technicians carry adapters and specialized hardware to complete your lock change regardless of door type or age.
What is the difference between a lock change and a lock upgrade?
A lock change replaces your current lock with new hardware of the same security grade, while a lock upgrade means your lock change includes moving to a higher-security product such as a smart lock, high-security deadbolt, or keypad system. Ace Locksmith SF offers both options during every lock change appointment so you can choose the level of protection that fits your needs.
How fast can you change door lock near me?
Most change door lock near me requests in San Francisco are completed the same day: often within an hour of your call, once we confirm the lock type you want.
Do you send a locksmith to change locks on house doors?
Yes. We send a locksmith to change locks on house doors for move-ins, lost keys, break-ins, or an old lock that's simply worn out.
We believe in honest, upfront pricing. You’ll receive a clear quote before any work begins, with no hidden fees or surprise charges. Our prices are competitive, and we never charge extra for evenings, weekends, or holidays.
- Free estimates
- No hidden fees
- Price match guarantee
Call Now: (415) 205-5718
Licensed locksmith (#7929) · open 7 days a week, 7 AM-11:30 PM · 15–20 min response in SF