Keyed Alike Locks in San Bernardino: Matching Your Doors to One Key

What to know first in San Bernardino

A pin tumbler cylinder holds a column of small pins in each of five or six chambers. The right key lifts every column to the same height, creating a clean line, called the shear line, that lets the plug turn. Keyed alike locks are just cylinders whose pin stacks were built to the same cut depths, which locksmiths call a bitting. Kwikset's KW1 keyway offers seven cut depths; Schlage's SC1 offers ten with finer steps, so the two brands aren't interchangeable, and neither are two different keyways from the same maker. Matching locks means choosing a bitting, then replacing the key pins inside each plug with sizes that fit it. In San Bernardino we do that on site: the plug comes out over a plug follower so the springs and driver pins stay put, we measure and install the new key pins, and the plug goes back in. Whether you supply a working key to copy or let us choose a fresh bitting, the result is the same: one key, several locks, no new hardware.

Work included on a typical visit

• Rekeying locks you've just bought. The best time to set up keyed alike locks is before they go on the door. If you're mid-remodel in San Bernardino, tell us the brands and finishes you've picked and we'll sort out the keying first. Cylinders pinned before installation go in without back-and-forth, and your contractor can hand you finished keys.
• Alike by group, different between groups. Most San Bernardino households want a short list of keys, not a single one. We pin the family's daily doors to Key A and the shared spaces to Key B, so a dog walker or gardener never touches the house. We label both sets and write down which locks belong to which group.
• Adding a master key above a keyed alike group. Not every keyed alike set needs a master. A homeowner with two groups can simply carry both keys. Landlords, caretakers and property managers in San Bernardino gain the most, because one master replaces a heavy ring. We design the levels, pin the cylinders and hand you the chart.
• New doors, remodels and ADUs. Detached garages, guest houses and ADUs often arrive with locks from three different suppliers. We catalog what is installed, note which can share a keyway, and fill gaps with matching hardware, so the new unit joins your key system instead of adding a fourth key to the ring.
• Key cutting, labeling and a key record. How many keys do you need? Most households settle on four to six: one per adult, one for a trusted neighbor, one for a spot only you know. We cut them on site, check the cuts against a gauge and leave you a card listing which locks they open.

Local factors in San Bernardino

Older San Bernardino homes carry a lifetime of replaced hardware: a mortise set at the front from the 1950s, a deadbolt added in the nineties, a brass knob at the back. Their keyways rarely match, so the first job is mapping them. We re-pin what shares a keyway to one bitting, swap a cylinder where an old mortise body can take a modern one, and replace the oddballs, keeping original handles wherever we can.

In apartment buildings around San Bernardino, keyed alike should stay within a single unit: entry door, balcony slider and storage cage on one key, never shared across units. Tenants need the landlord's consent before changing locks, and California Civil Code sections 1941.5 and 1941.6 require landlords to change locks within 24 hours of a tenant's written request in certain situations involving a protective order or similar documentation. We work with owners and managers to document everything.

Near campuses in San Bernardino, shared student houses suit keyed alike exterior doors so every roommate carries one key. They also turn over every year, and each returning or departing key becomes a copy at large. We re-pin the exterior doors to a new combination each lease cycle, which keeps the one-key convenience without letting last year's tenants in. If a house adds or loses a roommate mid-lease, one short visit resets the whole group.

Common situations

• An older couple in a 55-plus community in San Bernardino fumble with a ring of five similar keys. We pin their front, patio and garage locks to a single large-head key and put the storage unit on a separate one. Arthritic hands notice the difference: the key is easier to find, and there are fewer keys on the ring.
• The owner of a duplex off Mount Vernon Avenue inherits it with no key records. After we confirm her ownership with the deed, we inventory eight cylinders, key each unit's front and back doors to its own bitting, and pin the shared laundry closet to a master she holds. Each tenant gets keys for their half, and she gets a one-page map.
• A couple in a San Bernardino townhome buys two Schlage deadbolts for the front and back doors and notices the packs came with different keys. Instead of returning one, they call us. We pull the back cylinder, re-pin it to the front key, and test both locks a dozen times. They end up with one key on their ring and a spare cut for a neighbor.
• A property manager with six single-family rentals has entry locks that were never keyed to any system, and every turnover means hunting for the right key. We key each house's doors alike internally, assign a master to the management office, and set up a tagging scheme so one key opens one house with no leftover duplicates.

How the visit works

1. Tell us what you have and what you want alike. Call (951) 903-3193 and list your locks: deadbolts, knobs, handlesets, padlocks, anything with a keyhole. Photos of each lock's edge and brand name help. Tell us which ones should share a key and which should stay separate. We use that to quote the job and bring the right pins and blanks.
2. Confirm you're authorized. At the door we ask to see photo ID and something tying you to the property: a utility bill, deed, lease or business license. Locks open homes and stock rooms, so we don't skip this. Tenants should have the landlord's written approval before we rekey anything.
3. Choose the grouping and the key. If you want to add a lock to the group next year, say so. We note the keyway, the bitting and the key blank so future locks can join. We'll also tell you which of your locks cannot join, because of keyway or construction, before any parts come apart.
4. Re-pin or match each cylinder. We remove each cylinder, release the plug over a plug follower so the springs stay put, and exchange the key pins for the new bitting. A cylinder takes only a few minutes. Locks that can't be re-pinned are flagged, and we replace them with same-brand hardware.
5. Test every key in every lock. A keyed alike job has one pass-fail test: the same key must turn every lock smoothly. We run it a dozen turns per lock, in both directions, and try the spare keys too. Locks that bind get a dry lubricant, a screw tightening or a strike adjustment.
6. Label, cut spares and record the key. We cut the number of spares you want, tag each set with a neutral code and write the bitting and keyway on your key card. Keep the card somewhere safe and apart from your keys. With it, we or any licensed locksmith can match future locks to the group.

Pricing factors

• How many cylinders go on the key. The more cylinders in the group, the more time on site, and pricing follows the count more than anything else. Four deadbolts and a padlock quote differently from a fourplex. Give us an honest count, including the gate and the shed, and we quote it before starting.
• Brand and keyway compatibility. Schlage, Kwikset, Yale and others each use their own keyways, and some carry several, though sister brands sometimes share one. Matching inside one family is simple. Crossing families means replacing hardware, which is why a plan priced from a phone description sometimes changes at the door. We try to catch those cases from photos.
• Groups and master levels. A single key for every lock is the simplest structure. Alike-by-group needs extra planning and more key blanks. Adding a master level calls for master pins, a keying chart and more bench time. We quote each structure separately so you can see what the extra convenience costs.

Every job gets a clear quote before any work starts. Call (951) 903-3193 with the details and we'll tell you what to expect for your situation in San Bernardino.

Common errors that cost time and money

• Forgetting the forgotten locks. The garage entry, the side gate, the shed, the old mailbox and the pool-equipment closet are the ones that keep old keys alive. List every keyhole before the job, so none gets left behind on the previous combination.
• Ignoring the keypad and app side of a smart lock. Keying the backup cylinder alike doesn't remove old PINs, shared guest codes or app invites. When the keying is finished, review all of those too, or your tidy one-key system keeps a back door open electronically.
• Assuming any two locks from the same brand can be keyed alike. Keyways vary within a brand, and Kwikset SmartKey and conventional Kwikset cylinders don't share keys. Check the keyway first, or have us identify it, before you buy a second lock expecting it to join the first.

Practical tips before you call

• Use a neutral tag. A key marked with your street address becomes a map for whoever finds it. Tag keys with a code only you understand, such as 'A' for the family set and 'B' for the shared spaces, and keep the legend with your records, not on the ring.
• Match padlock sets by model, not just by brand. Different models from the same maker often use different keyways, so two padlocks can carry the same name and still not share a key. Buy the set as sold, or ask us to match them before you commit to a pile of mismatched ones.
• Never keep a spare under the doormat, the fake rock or the planter. Those are the first places a thief looks. A keyed alike set makes a hidden spare more dangerous, since it opens every door in the group. Leave it with a neighbor you trust or in a lockable key safe.
• Test the key in every lock before you install anything. Unbox the new locks, slide the key into each one and turn it, making sure the bolt throws and retracts. A defective cylinder or a mixed-up pack is far easier to exchange before the door has been drilled and painted.

Service in San Bernardino

San Bernardino is our home base, so most addresses in town are a short drive. When you call, you get an arrival estimate based on where the technician is and the traffic at that moment.

Our path into San Bernardino depends on where the previous job wrapped up. Sometimes that's a straight run via I-215; other times it's surface streets the whole way. Either way, you get a heads-up call when the technician is close.

About San Bernardino: The National Orange Show began in 1911 to celebrate the region's citrus industry and still lends its name to the events center on E Street.

Planning a rekey in San Bernardino?

Call (951) 903-3193 and tell us how many doors you want on the new key and the brand of the locks if you know it. We'll quote the rekey before any work starts.