Allen's Mobile Locksmithing

Serving Tuolumne, Calaveras, and surrounding counties at competitive rates since 1992 - License No. LCO1032


209.768.1801 209.586.1383


(see below)

Listed by Edward Rector with Coldwell Banker / Segerstrom - 209.743.2733

This is a fantastic opportunity to acquire a well established mobile locksmithing business. This business has been successfully operating in Tuolumne County since 1992 and has built a strong reputation for providing exceptional locksmith services to residential and commercial clients.

With a solid customer base and repeat business, this locksmith business has established itself as a trusted name in the industry. The business offers a wide range of locksmith services, including key duplication, lock repair and installation, master key systems, emergency lockout assistance, safe combination changes, and more... This business has developed strong relationships with local businesses, property management companies, and government agencies, which provide a consistent source of referrals. Fully equipped; the sale includes all the necessary equipment, tools, and inventory that are essential for day-to-day operations. This ensures a smooth transition for the new owner.

Whether you are an experienced locksmith looking to expand, or an entrepreneur seeking a turnkey business opportunity, this business offers huge potential for growth and success.

** $85,000 includes 2019 Toyota Tacoma TRD Off Road 4X4
At this time, I am only accepting work requests from established business accounts.  I apologize for not being available for your Locksmithing needs.  However, if you are an established business account, please either call or text me at 209.768.1801, call me at 209.586.1383, or email me at and leave your name, telephone number, and a brief message, and I will return your call as soon as possible.

Locks Re-Keyed, Repaired, Keyed Alike

When it’s time to have your locks rekeyed or replaced Save money, have your locks rekeyed instead of replaced. Some locks aren’t working quite right. If they can be repaired, we can do that too. Do you have multiple locks keyed to different keys? If you have compatible locksets, we can rekey them all alike.

Knobsets & Deadbolts Sold and Installed

Replace old/broken locks to match your existing ones. Need to replace your worn out knobsets or deadbolts, give us a call. We can also install new deadbolts for you and, if compatible brands, we can key them to your existing locks. Wooden doors or metal doors, we can do it with fast, friendly, professional service.

Safe Combination Changes

Do you know who has the combination to your safe? Is it time to have it changed? Commercial or residential - Do you have a safe that needs the combination changed? Old or new, we can recombo both dial and electronic safes (if the existing combination is known, or if the safe door is open).

Emergency Lockouts

If you find yourself locked out of your home, business, or cabin, we will get you back in. Give us a call. Home or Business - Locked out, and in a hurry? Gone to voicemail? Leave a message. We can usually respond within 15 minutes, and be there shortly after. If you’re locked out, we can get you back in.


We do both evictions and foreclosures, and provide discreet locksmith services. Unfortunately, it is sometimes necessary for owners of rental properties to have tenants evicted, and to have the locks rekeyed, repaired, or replaced. We work with owners and real estate companies to perform this task professionally and discreetly, and are able to do so with little advance notice.


Padlocks can be bought individually, keyed alike, or some can even be rekeyed. Did you know that some padlocks can be bought keyed alike? Or that they can be rekeyed instead of buying new ones? We even have padlocks that can be keyed the same as your house keys, or to the padlocks you've had for years. We can also order padlocks keyed to those Master padlocks you've had for years.

Master Systems

Businesses and residential applications - key your locks to a Master System Interested in having your locks on a "Master Key System”? Our computer-generated systems eliminate any "cross-overs". Increase your security. For your business, give your staff only the keys they need. For your home, have all your locks keyed to a Master Key, and various 'change' keys that fit only certain locks.

Mailbox Lock Replacement

No working key for your mailbox lock? If you are having mailbox lock issues, give us a call. Lost your only copy of your mailbox key, and locked out? Just moving into a new home, and no mailbox key was given to you? Not sure if someone else may have a copy of your mailbox key? Is your mailbox lock broken, or a key broken off inside? We can get you back into your mailbox, safely and securely

Key Extraction

Extract broken keys from cars, homes, file cabinets, mailboxes, camper shells... Have a broken key in a lock? Let us extract it without doing any damage to the lock. Trying to get that broken key out of your lock yourself may sound easy, but without the proper tools and expertise, you can make a bad situation even worse. NOTE: If done wrong, or with incorrect ‘tools’, a broken key piece can be pushed back into the lock to a point of “no return” (the broken piece is too far back in the lock to be successfully extracted, without completely taking the lock apart, which is sometimes not possible)

File Cabinet Locks

No key for file cabinet, lock broken, need a replacement lock Key locked inside - we can pick the cabinet open Broken key in lock - we can usually extract the broken piece and make replacement key Lost or missing key - we can either make spare key(s) using numbers stamped on lock face or replace lock Missing / no file cabinet lock - we can usually replace missing lock (provided proper linkage is in place) Need extra security / linkage broken or absent? - we can install side locking bars to secure cabinet

About Us imageAbout Us imageAbout Us image

CA Locksmith License LCO 1032 - Licensed by:
California Department of Consumer Affairs, Bureau of Security Investigative Services

Business, Profession and Trade License #33939 - Licensed by:
City of Sonora, Ca

This full-time business has been owned and operated by the Mumford family since 1992. We are now proudly into our 33rd year serving the community.  The original store, McDaniel’s Locksmithing, was located in Twain Harte for over 15 years. The business name was changed in 1993 to Allen’s Mobile Locksmithing. In October of 2000, the business was expanded to include an East Sonora store.

In 2001, we moved our location back to Twain Harte, with the emphasis on being primarily mobile. Shop appointments are always available, just give us a call. We service all of Tuolumne and Calaveras (as well as the surrounding counties) at competitive rates. We provide friendly, reliable, and professional service to all our customers. Before deciding on a locksmith for your particular needs, give us a call and compare our prices.


We have the largest selection of key blanks in Tuolumne County - Give us a call for those hard to find blanks.
We accept all major credit and debit cards, as well as mobile phone apps like Venmo, Cash App, and Zelle. We also accept checks, and NEVER refuse cash.
The simple answer is NO.  All locksmiths, pretty much everywhere, have varying fees for Service Call amounts, rekeying lock cylinders, making keys, installing deadbolts, replacing existing locks with new locks.......  The best thing to do if you are planning on having locksmith work done, is to take a few minutes to call around, and get prices.  And, keep in mind, that if you call and it goes to a message machine, I am out helping someone else, but will return your call as soon as I can.  I also firmly believe that a busy locksmith is the one who has the most reasonable rates, and the one to use. 
In the Locksmith world, “changing” a lock means to physically replace the lock. “Rekeying” a lock is to change the pin tumblers (inside) of the lock, so that the current keys don’t work any longer.  Assuming the locks are in decent condition, and function properly, rekeying locks is much more affordable.  
I can rekey your locks to one key providing all of your locks are of a compatible brand, and the key blank fits (goes into) the cylinder.  Kwikset and Schlage are the 2 most popular brands available, but are NOT compatible with each other.  Many ‘off’ brands use the Kwikset key blank, and ARE compatible with Kwikset.   With the exception of Emtek and Baldwin, that use the Schlage C key blank profile, few other brands of locks are compatible with Schlage. If you have a mix of Kwikset and Schlage, and you REALLY want to have ‘one key that fits all”, you could choose to go with the brand you have the most of, and replace the others to it. But remember, replacing locks is generally more expensive than rekeying locks.
If you do NOT know the working combination to your safe, and you are locked out, you will need to call a certified safe technician, and will most likely have to have it drilled.  However, if you know the combination, but are unable to open your safe, or if the safe door/lid is opened but in the locked position, I should be able to help you. 
Unfortunately, I rarely work on vehicles any longer. I DO NOT make replacement keys for those vehicles that utilize transponder technology.  I DO make keys for SOME older cars, trucks, and motorcycles.  If you are mechanically adept, I DO give substantial discounts if you are able to remove the lock (typically the passenger door lock) from the vehicle, and bring it to me.
A Master System is a key/lock set-up where a “Master” (or “Grand Master) key fits all of your locks, and lower levels of keys that fit only certain locks (ie. A business may have 10 offices.  The Master Key would fit all offices, but each individual office would have its own key). I also do Master Systems for homes.  Particularly in our area, because of the number of vacation homes, I could key all of your locks to a Master Key, and only a limited number of the locks would be the “Renter” key.  That way, if a “Renter” key is lost, or you don’t feel comfortable with knowing a past user of that key hasn’t made copies, only those locks on the “system” would need to be rekeyed, avoiding a more expensive rekey of all of your locks. I also frequently key “weekend homes” on a mini-master system, where the “weekend home” is keyed to your primary residence, but also has a key that fits just those locks (the one requirement is that the “weekend home” locks are compatible with your primary residence locks).
Virtually all of the combination locks available on the market are “normal” deadbolts, knobsets, or levers with the option to use a numbered combination pad instead of a key.  Most of those locks come with a key as well.  They are no more secure than a typical keyed lock.  The only “more secure” aspect are the few combination locks that don’t have a key option, are that those locks cannot be picked open (as there is no key).
 If you were to call in the morning hours, I would usually be able to help you that same day.  Almost always, if not that day, I could do it the next day.  If you know in advance of when you would like the work done, you could call and be put on my calendar, ensuring a day and time that is convenient for you.
My normal business hours are Monday-Friday, 8:30am-5:00pm, Saturday, 9:00am-1:00pm.  Appointments are available on Sunday’s as well.  I DO NOT charge more for weekend work.  
I am a firm believer that you  should DEFINITELY have your locks rekeyed if you have just bought a new place.  Up here, “in the mountains”, where there are many “weekend” properties, over the years keys tend to multiply.  You can’t be sure if neighbors have your keys, friends of the prior owners, or if all of the keys were turned over.  Considering the alternative, rekeying is WAY safer, and potentially cheaper. Be certain who has keys to YOUR place.
Yes, as I generally carry the most popular key blanks on my truck.  Not only can I duplicate keys for you, if you have a ‘worn’ house key I can cut it by code. Often, a worn key (or a badly cut duplicate) can cause a ‘good’ lock not to function properly.

Allen Mumford

Owner / Locksmith

Allen has been the owner/locksmith of the business here in Tuolumne County, for 32 years. He has worked with many schools, businesses, real estates firms, as well as the day-to-day customers, and has established and maintained a reputation as a friendly, professional, and dependable locksmith.

Janet Mumford

Accounts Receivable / Payable

Janet, AKA “The Boss”, handles all of the bookkeeping aspects of the business.

Oliver - Trainee

RIP - November 11, 2023

Ollie is no longer with us, and we miss him dearly. There will never be another “pal” like him. He will never be forgotten.

Angels Camp                  Hathaway Pines          San Andreas
Arnold                              Ione                              Sheep Ranch
Blue Lake Springs         Jackson                         Sierra Village
Avery                               Jamestown                   Sonora
Burson                            Jenny Lind                     Soulsbyville
Camp Connell                La Grange                      Strawberry
Cedar Ridge                    Leland Meadows         Sugar Pine
Chinese Camp                Long Barn                     Sutter Creek     
Cold Springs                   Martel                            Tuolumne City
Columbia                         Milton                            Twain Harte 
Confidence                      Mi-Wuk                          Valley Springs
Copperopolis                  Mokelumne Hill            Volcano
Coulterville                      Mountain Ranch          West Point
Drytown                           Murphys                        Willow Springs
East Sonora                    Odd Fellows 
Fiddletown                      Pinecrest                       
Greeley Hill                      Pine Grove
Greenhorn Creek            Pioneer
Groveland                        Ponderosa Hills
  • 23296 Mountain Drive, Twain Harte, CA, USA