Ontario, San Bernardino County
Ontario Lock Installation for Homes, Rentals and Businesses
Short answer: Lock installation means fitting new hardware to a door so it latches, locks and keys correctly. In Ontario, Julian's Locksmith measures your door's thickness, backset and existing holes, helps you pick the right grade and function, bores or adapts the prep, sets a solid strike, then keys everything to one key. We quote first and confirm you're authorized to modify the door.

Two deadbolts can look identical on a shelf and behave very differently on your door. Grade ratings from the Builders Hardware Manufacturers Association tell you how much abuse a lock was tested to take, and the gap between a Grade 3 knob and a Grade 1 lever is real: heavier springs, thicker bolts, sturdier trim and tighter tolerances. For Ontario homes and offices, we explain what each grade means for your specific door, compare Schlage, Kwikset, Yale and Baldwin without a sales pitch, then install the one you pick so it performs at the level it was built for.
Installing a lock starts with the door, not the lock. A standard cylindrical lock needs a 2-1/8 inch cross bore and a 1-inch edge bore. The backset, meaning the distance from the door edge to the center of the bore, is 2-3/8 or 2-3/4 inches, and doors are usually 1-3/8 or 1-3/4 inches thick. Ontario's housing stock makes each of those numbers worth checking. Early-1900s houses near downtown have doors with odd bores, mortise pockets or thin stiles. Houses from the 1950s and 1960s may have hollow doors, or solid ones thinned by decades of planing. Newer homes in Ontario Ranch come with factory-bored steel or fiberglass slabs. We also talk about grade. ANSI/BHMA Grade 1 is the heaviest-duty rating and suits commercial doors, Grade 2 is a strong residential choice, and Grade 3 is builder-grade. For a front door, Grade 2 is a sensible minimum. Finish matters in strong sun, so we look at PVD brass or satin nickel that hold their color. The install is methodical: mark the template, bore, fit the latch, mount the lock, set the strike, test the throw. An Ontario door can swell in summer and shrink in winter, so we close it and watch the bolt meet the strike before we call it done.
Lock Installation in Ontario: what to expect
Choosing a new lock comes down to five questions, and we walk through them with you before anything goes on the door. First, function: an exterior entry lock, a passage set that never locks, a privacy set for bathrooms, or a commercial storeroom lever that stays locked from outside. Second, grade: BHMA Grade 3 suits light residential use, Grade 2 is the practical choice for most homes, and Grade 1 belongs on busy commercial doors or anywhere you want maximum durability. Third, keyway: Kwikset and Schlage use different keyways, so mixing brands means carrying two keys unless we plan around it. Fourth, style and finish, including the exterior hardware rules some Ontario HOAs enforce. Fifth, handing and door thickness, which determine whether a lever or mortise lock fits without modification. Get those five right and the install is straightforward. Miss one and you end up with hardware that technically works but annoys you every single day.
How we can help in Ontario
- Entry locksets, handlesets and deadbolt pairs. Front doors get the hardware people touch most. We install knob-and-deadbolt pairs, lever sets and full handlesets with a thumb-press grip, then adjust the deadbolt so it throws with a fingertip rather than a shoulder. Every cylinder on the door is keyed to one key before we call it finished.
- Strike installation and frame reinforcement. Doors in Ontario shift with summer heat and seasonal rain, so we position the strike after checking the gap around the whole door. A latch that barely catches in January may miss completely in August. We file or reset the strike opening so the latch engages with a firm click through every season.
- Narrow-stile storefront deadlocks and cylinders. New retail tenants in Ontario often inherit storefront locks with unknown keys, missing parts or the wrong cylinder length. We install new deadlocks and cylinders sized to the door's stile, add the correct cam so the cylinder actually drives the bolt, and confirm the egress side still opens the way the fire marshal expects.
- French, patio and sliding door locks. Multipoint locks on newer patio and entry doors throw hooks or bolts at several points along the edge with one lift of the handle. We install compatible handle sets and cylinders, confirm the gearbox model before ordering parts, and set the keeps so every point engages. These systems are brand-specific, so compatibility comes first.
- Retrofitting odd, oversized or outdated door prep. When the existing backset or bore doesn't match a new lockset, there are options short of a new door: adjustable latches, oversized trim rings, edge-fill plates or rebored holes offset from the old ones. We explain which fix keeps the door strongest, since some patches look fine but leave very little material around the latch.
How Ontario shapes the job
Builder-grade locks in newer Ontario tracts are usually Grade 3 knobs plus a basic deadbolt, often keyed to a construction key that framers, painters and cleaners may have carried. A common upgrade is installing Grade 2 or Grade 1 entry sets on the exterior doors, keyed alike, while keeping the interior passage hardware. The prep is standard, so these installs go quickly, but we still swap the short strike screws for long ones, because builders rarely do.
Storefronts along Euclid Avenue and in the shopping centers of Ontario mostly use aluminum doors with narrow stiles, which limits hardware to specific deadlocks, latches and cylinders. A new tenant usually inherits mystery keys and worn parts, so installing a fresh deadlock with a correctly sized cylinder and cam is a sensible first step. We also fit Grade 1 levers on back-of-house doors and keep the egress side the way the fire marshal expects.
Inland summers around Ontario push exterior doors past what their builders expected. Steel doors expand, wood doors dry out and shrink, and dark finishes on west-facing hardware get too hot to grip comfortably. When we install locks here, we set strikes with that seasonal movement in mind, recommend lighter or PVD finishes for sun-exposed doors, and prefer hardware with metal internal parts over budget sets built around plastic components.
Example situations
A homeowner has just hung a new prehung door at the front of a 1960s ranch house off Fourth Street. It came with a single bore for a knob and no deadbolt hole. We would cut the second bore with a hole saw and jig, fit a Grade 2 deadbolt and a lever set in a matching finish, set a reinforced strike, and test that the bolt throws a full inch. The door he bought as a quick weekend swap ends up as a properly secured entry.
- For example, a homeowner in North Ontario has a contractor hang a new fiberglass front door, and it arrives without a single hole. The handleset they picked needs a 2-3/4 inch backset and a precise lower post hole. We bore the door with a jig, place the deadbolt at the handleset's spacing, set a strike box with long screws, and key both locks to the existing garage door key before leaving.
- Garage conversions often leave a gap like this: the door from the garage into the kitchen has a passage knob, no deadbolt, and it no longer swings shut on its own. We install a keyed entry lever and a deadbolt keyed to the front door, adjust the spring hinges so the door closes and latches by itself, and test that the latch catches from every starting angle.
- Picture a 1940s house near Kaiser Permanente Ontario Medical Center with its original mortise lock, a cracked glass knob and a skeleton key nobody trusts. The owners want a modern deadbolt and a lever but love the old five-panel door. We fit a conversion plate over the abandoned pocket, bore new holes through solid fir, plug the old spindle hole and leave the panels untouched.
Step by step with Julian's Locksmith
- Measure the door and confirm authorization. We start by measuring door thickness, backset, bore diameter and the spacing of any existing holes, then photograph the edge and jamb. Before cutting anything, we confirm you own the property or have written approval from the owner or manager, because new door prep can't be undone.
- Choose hardware that fits the door and the job. Before anything is ordered or cut, you get a quote covering hardware, door prep, strike work and keying. If the door needs a fix first, like a sagging hinge or a cracked jamb, that line appears on the quote too, so nothing surprises you later.
- Prep the door: bore, edge bore and mortises. Fiberglass and steel get slower speeds and sharp bits, hollow-core doors get checked for their lock block, and older wood doors get inspected for buried nails or old filler. Chips and dust are vacuumed out of the bore so the chassis seats cleanly.
- Set and reinforce the strike. With the door closed, we mark exactly where the latch and bolt meet the jamb, then cut the strike mortise and drill the bolt pocket to full depth. A strike box goes in, and long screws reach the framing behind the jamb for real holding strength.
- Mount, adjust and key the hardware. Handlesets get their lower post anchored, mortise locks get cylinder depth set and locked, and storefront deadlocks get the cam checked against the bolt. Each lock type has its own small adjustments, and skipping them is how new hardware starts failing early.
- Test with the door closed and hand over. Before we leave a Ontario job, we can note the brand, keyway and key code for your records, which makes future copies or rekeys simple. Old hardware stays with you or goes with us, your choice. Every lock gets one final lock-and-unlock cycle.
Pricing factors
- Hardware grade and who supplies it. Premium finishes, solid brass bodies, mortise construction and restricted keyways all raise hardware cost. We show you where extra money buys real durability and where it mostly buys looks, then let you decide. Either way, the full job is quoted before anything is ordered or cut.
- Door prep: blank, existing or mismatched. Mortise pockets, handleset post holes, deadbolt bores and strike mortises all add up. The more cutting a door needs, the longer the job takes. We look at your door's current prep first and tell you how much new work the lock you want would actually require.
- Strike and frame reinforcement. Long strike screws are inexpensive; rebuilding a split jamb is more involved. On French doors, the flush bolts and their head and sill receivers add parts, and sliding doors may need auxiliary locks. We itemize each piece so you can decide what to do now and what can wait.
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 Ontario.
What to do before we arrive
- Buy the same brand for every exterior door if you want one key. Kwikset and Schlage use different keyways, and a key cut for one physically won't enter the other. Choosing one brand up front avoids carrying two keys or paying to swap hardware later.
- Look for the BHMA grade on the packaging. Grade 3 is fine for a closet, but for any door that leads outside, including the side yard and garage-entry doors, Grade 2 is a sensible minimum. Grade 1 makes sense for doors that take heavy traffic or face the street.
- Levers are easier than knobs for wet hands, full arms and arthritic fingers, which is why many households switch. Remember that toddlers and some dogs can also push a lever down, so for doors to a pool or the street, a deadbolt or a higher secondary latch adds a useful barrier.
- After installing privacy sets on bathroom and bedroom doors, keep the small emergency release tool somewhere grown-ups can find it, such as on top of the door trim. Kids lock themselves in more often than you'd expect, and the right pin opens the door in seconds without damage.
Mistakes to avoid
- Boring a door freehand with a hole saw and a steady hand. Without a jig, the cross bore drifts off square, the edge bore misses center, and the latch drags against the chassis forever after. A few minutes clamping a jig saves a door from permanent sloppy prep.
- Using the short screws from the box to mount the strike. They grip only the thin jamb, so a single hard kick can tear the strike out along with a strip of wood. Long screws that reach the framing stud make a dramatic difference for almost no cost.
- Putting the cheapest Grade 3 lock on the back or side door because nobody sees it. Doors out of view from the street are exactly where a forced entry happens with less chance of being noticed. Those doors deserve the same grade and strike reinforcement as the front.
Getting to Ontario
Ontario is about 25 miles from our San Bernardino base, roughly 33 minutes in light traffic via I-215 North to the I-15 junction at Devore. When you call, you get an arrival estimate based on where the technician is and the traffic at that moment.
Stuck on the shoulder or in a parking lot along I-15? Get somewhere safe, turn on your hazards, and give us the nearest exit or business so we can find the car without guessing.
About Ontario: Toyota Arena opened in late 2008 and hosts the AHL's Ontario Reign, while ONT Field opened in 2026 as home of the Dodgers' Single-A Ontario Tower Buzzers.
| Neighborhoods | North Ontario near Chaffey High School, Grand Park, Ontario Ranch, Edenglen, New Haven, Guasti |
|---|---|
| ZIP codes | 91761, 91762, 91764 |
| Main routes | I-10, SR-60, I-15, Euclid Avenue |
| From our San Bernardino base | about 25 miles via I-215 North to the I-15 junction at Devore, then I-15 (Ontario Freeway) South to I-10 West and Holt Boulevard for downtown and the airport; stay on I-15 South to Ontario Ranch Road or SR-60 for Ontario Ranch. SR-210 West to I-15 South is the usual alternate. |
New or replacement locks in Ontario?
Call (951) 903-3193 and tell us which doors and what kind of hardware you have in mind. If you already bought the lock, keep the box handy so we can check it fits the door, and we'll quote the install before any work starts.
Frequently asked questions
Do I need a permit or HOA approval to install new door locks?
Installing or swapping residential locks generally doesn't call for a building permit. HOAs are a different matter: many Ontario communities regulate exterior hardware finish and style, so check your guidelines before changing how the front door looks. Commercial doors can involve fire and accessibility requirements, and a landlord or building owner typically has to approve any change. We'll flag anything we notice before work starts.
Can you install locks on a new door that has no holes?
Yes. We bore blank doors on-site with a jig that keeps the cross bore square and the edge bore centered, then cut faceplate and strike mortises to fit your hardware. We can place a deadbolt above the lockset at whatever spacing your handleset or trim style needs. It's a regular part of remodels, door replacements and ADU builds around Ontario.
Do you need to see ID before installing locks?
Yes. New locks control who can enter a property, so we verify identity and authority on every job. Owners show photo ID plus something tying them to the address, such as a deed, tax bill or utility statement. Tenants and contractors need written authorization from the owner or property manager. Our California locksmith license, LCO7891, can be checked at search.dca.ca.gov.
What's the difference between Grade 1, Grade 2 and Grade 3 locks?
These are BHMA performance grades based on standardized tests for operating cycles, strength and security. Grade 3 is light-duty residential hardware. Grade 2 is a heavier residential or light commercial standard and suits most home entry doors. Grade 1 is the toughest commercial rating, made for high-traffic doors. Higher grades use heavier parts, but installation quality, especially at the strike, still decides how well any lock resists force.
Do you install mortise locks?
Yes, both commercial mortise locks such as the Schlage L9000 and Sargent 8200 series and residential mortise sets from decorative brands. We can fit a new mortise body into an existing pocket, cut a new pocket with a mortising jig, or convert an old mortise door to a standard cylindrical lock. Handing, cylinder depth and the strike all get set during installation.
Can a renter have new locks installed in Ontario?
Usually only with the landlord's written permission, because a new lock changes the owner's property and the landlord typically keeps a key. There's an important exception: in certain situations involving a protective order or similar documentation, California Civil Code 1941.5 and 1941.6 require a landlord to change the locks within 24 hours of the tenant's written request. Otherwise, get approval in writing first.
How far is Ontario from your base?
Ontario is about 25 miles from our San Bernardino base, roughly 33 minutes in light traffic. Arrival time depends on traffic and on the job the technician is finishing, so we give you an estimate on the phone before you commit.
Related services in Ontario
- Change Locks in Ontario
- Lock Replacement in Ontario
- Deadbolt Installation in Ontario
- Lock Rekey in Ontario
- Mortise Lock Installation in Ontario
- Lever Lock Installation in Ontario
- Smart Lock Installation in Ontario
- High Security Locks in Ontario
- Commercial Door Hardware in Ontario
- Front Door Lock Installation in Ontario
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