Fast, Reliable Residential Locksmith Across Fontana
Residential locksmith service in Fontana typically runs $89-$275 for most common jobs, with emergency lockout response averaging 25-40 minutes across the city. We’re Strongbox Lock & Safe Co. of California, and our technicians know the difference between a 1950s Kaiser Steel tract home on the west side and a 2000s subdivision south of the 10. That matters when you’re standing outside a door that won’t budge at 11 PM.
We answer every call with a live person, 24/7. No voicemail trees. The price we quote on the phone is the price on the invoice. Call (833) 294-4584 for a flat estimate before we roll.
Fontana’s housing tells two stories. The west-side neighborhoods around 92335 hold modest homes built for steel mill workers, many with original passage sets and hollow-core doors that have seen sixty-plus years of service. South Fontana in 92336 and 92337 grew fast in the 1990s and 2000s, filling with rental properties that turn over constantly. Each area needs a different locksmith approach, and we’ve been serving both for over 42 years.
Why Strongbox Lock & Safe Co. of California Is Fontana’s Preferred Residential Locksmith Company
We’ve built our reputation in the Inland Empire by doing what we say we’ll do. Our Residential Locksmith team doesn’t subcontract to unvetted technicians, and we don’t quote $19 over the phone only to demand $300 at your door. Every technician is background-checked, uniformed, and presents ID before touching your lock.
Fontana customers call us back because we understand their specific hardware. The 1960s-era deadbolts in homes near Oleander Avenue and Juniper Avenue aren’t the same as the builder-grade Kwiksets in a 2005 tract off Cherry Avenue. We’ve serviced both enough times to know which parts to stock and which have been discontinued for decades.
Our response time to Fontana averages 25-40 minutes from dispatch, faster during daylight hours when our technicians are already working nearby jobs in Rialto or Bloomington. We keep common Schlage, Kwikset, and Medeco cylinders and deadbolts on every truck, so most rekeys and replacements finish in a single visit.
The 90-Day Done Right Promise applies to every Fontana job. Backed in writing. No paperwork to file, no arguing. If it isn’t right, we come back.
Our Residential Locksmith Services in Fontana
Lock Rekey
Lock rekeying in Fontana runs $89-$145 per cylinder, with volume discounts for landlords managing multiple units. This is our most called-for service in the 92336 and 92337 ZIP codes, where rental turnover is constant and property managers need locks changed between tenants without replacing the entire hardware.
We can rekey all your properties to a single master key system, or set up grand-master hierarchies if you manage multiple buildings. One call, one schedule, one invoice. The old keys stop working the moment we finish. For landlords with five or more units, ask about our standing $50 Off Any Repair Over $250 offer.

Deadbolt Installation
New deadbolt installation in Fontana homes ranges from $125-$195 per door, including hardware. Many west-side homes in 92335 have only passage sets or original spring-latch locks with no true deadbolt, a vulnerability that’s been standard knowledge since the 1980s but somehow still exists in sixty-year-old houses.
We drill and mortise for Schlage B660P commercial-grade deadbolts where the door and frame can support it, or install reinforced strike plates with 3-inch screws into the framing on older hollow-core doors that can’t take the weight of heavy hardware. We match the solution to the door, not the other way around.

Door Reinforcement
Door reinforcement for Fontana’s Kaiser-era homes starts at $175 for a basic package and runs to $340 for full jamb and strike hardening. The hollow-core doors common in 1950s-1970s tract homes split under forced entry far easier than solid-core modern units, but full door replacement isn’t always necessary.
We install steel strike plates with six-point anchoring, door jamb armor kits, and wrap-around plates where the door edge has weakened from decades of latch wear. Done right, a reinforced hollow-core door resists kick-in better than an unreinforced solid-core replacement that costs four times as much.

Residential Lockout
House lockout service in Fontana costs $89-$145 depending on time of day and lock complexity. Summer afternoons between 3 PM and 6 PM are our busiest window, when metal frame expansion from 108°F-plus heat causes deadbolts to bind just as people arrive home from work.
We pick, bump, or bypass without drilling whenever possible. If we must drill, we replace the damaged cylinder at our cost under the 90-Day Done Right Promise. You’ll never pay twice for our entry method.

Window Lock & Security Hardware
Window lock installation and sliding door security bars in Fontana run $45-$125 per opening. Many 1990s-2000s homes in south Fontana have original window latches that fail with age, and sliding glass doors with broken or missing secondary locks. We stock replacement hardware for most common manufacturers and can key window locks to match your door key on request.

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 Fontana
We install and service Schlage, Kwikset, Medeco, and Yale hardware from stock carried on every truck. For Fontana’s older homes, we maintain a supply of discontinued and hard-to-find cylinders, including some Kwikset and Schlage legacy keyways that haven’t been standard since the 1980s. When a part isn’t on the truck, our supplier network in the Inland Empire usually turns it around within 24 hours. We don’t sell you what’s convenient for us. We sell you what fits your door, your frame, and your budget, with a flat price quoted before any work begins.
Common Residential Locksmith Problems We See in Fontana Homes
- Thermal expansion lockouts. Fontana’s inland basin location produces summer highs of 108-112°F that expand metal door frames enough to bind deadbolt bolts against their strike plates. We see this most in west-side homes with original steel frames and in newer installations where the strike wasn’t aligned with seasonal expansion in mind. High-temp lubricant and seasonal strike adjustment prevents most recurrences.
- Discontinued hardware in Kaiser-era homes. The 1950s-1970s tract homes around Oleander Avenue, Juniper Avenue, and north of Foothill Boulevard often have passage sets and deadbolts from manufacturers that closed decades ago. We recently serviced a 1964 home on Oleander Avenue in the 92335 ZIP code where the original one-piece door had a seized spring assembly. After sourcing a discontinued torsion spring from a specialty supplier, we retrofitted a new opener system, upgrading the homeowner’s safety and convenience.
- Rental turnover rekeying backlogs. Property managers in 92336 and 92337 subdivisions sometimes let rekeying slip between tenants, creating liability exposure and insurance complications. We offer scheduled rekeying contracts with master-key systems that let managers access all units with one key while tenants keep individual privacy.
- Over-replacement of salvageable doors. Some locksmiths quote full door replacement on 1950s-70s hollow-core units when a reinforcement retrofit would achieve better security at one-third the cost. We assess the frame, the jamb, and the hardware separately. Sometimes the door is the problem. Often it isn’t.
Pricing for Residential Locksmith in Fontana, CA
| Service | Typical Range in Fontana |
|---|---|
| House lockout (business hours) | $89-$125 |
| House lockout (after hours / weekend) | $125-$145 |
| Lock rekey per cylinder | $89-$145 |
| New deadbolt installation | $125-$195 |
| Door reinforcement package | $175-$340 |
| Window lock replacement | $45-$125 per opening |
| Master key system setup | $195-$450 (varies by complexity) |
These ranges reflect Fontana’s market specifically. Factors that move the needle: after-hours timing, hardware grade selected, number of cylinders to rekey, and whether the door or frame needs repair work beyond the lock itself. We quote flat prices on the phone before dispatch. The number you hear is the number on the invoice. Seniors and veterans receive a permanent 5% discount. Call (833) 294-4584 for your exact quote - estimates are free.
We Also Serve Cities Near Fontana
Our technicians regularly work in Fontana and the surrounding communities: Bloomington to the southwest, Rialto to the northwest, Glen Avon to the west, and Pedley to the south. If you’re near the border, call us - we likely have a truck in your area already.
Serving Fontana, CA - Our Local Coverage Area
We’re based in the Fontana 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 - Residential Locksmith in Fontana
Yes, in most cases we can repair or retrofit original hardware without door replacement. We disassemble the mechanism, clean decades of grit and oxidized lubricant, replace worn springs and drivers with compatible modern parts, and apply high-temperature lubricant formulated for Fontana’s 108°F-plus summer peaks. If the lock body itself is cracked or the keyway is worn beyond pinning, we can often source a direct replacement that fits the existing door prep without modification. Call (833) 294-4584 for a free assessment - we’ll tell you honestly if replacement makes more sense.
Yes, we design and install master key systems for Fontana rental portfolios of any size. A typical setup for a 4-6 unit property runs $195-$340, with grand-master hierarchies available for larger portfolios. You carry one key that accesses all units; tenants keep keys that open only their door. Rekeying between tenants takes 15 minutes and costs a fraction of full hardware replacement. Ask about our $50 Off Any Repair Over $250 standing offer when you schedule multiple units. Call (833) 294-4584 to set up a walk-through.
Yes, this is one of our most common summer calls in Fontana. The inland basin heat expands metal door frames, compressing the deadbolt bolt against the strike plate so the key won’t rotate back to unlock. It’s far more common here than in coastal LA cities 40 miles west because of our temperature extremes and the prevalence of metal-frame construction in older homes. We adjust the strike position, enlarge the bolt hole if needed, and apply lubricant rated for high-temp cycles. Most fixes take under 30 minutes and cost $89-$125. Call (833) 294-4584 - we can usually get there before the sun sets and the frame contracts.
Sometimes, but discontinued parts are increasingly common for 1970s one-piece doors in Fontana’s 92335 neighborhoods. We maintain relationships with specialty suppliers who stock obsolete springs, hinges, and track hardware, and we’ve successfully sourced parts for doors other companies declared unrepairable. When parts truly aren’t available, we quote retrofit or replacement options with real numbers - no pressure, no vague promises. The 1964 Oleander Avenue job we mentioned above is a good example: a discontinued torsion spring located, then a full opener retrofit completed. Call (833) 294-4584 and describe your door. We’ll tell you straight what we can and can’t do.
We reinforce rather than replace whenever the door structure allows it. Our standard package for Kaiser-era hollow-core doors includes a steel strike plate with six 3-inch screws anchoring into the stud framing, a door jamb armor kit that distributes force across the entire jamb length, and a wrap-around plate where the latch edge has weakened from decades of use. Total cost runs $175-$340 depending on door condition. A reinforced hollow-core door with proper strike anchoring resists forced entry better than an unprotected solid-core door. We assess your specific frame and jamb condition on site and quote before any work begins. Call (833) 294-4584 for a free evaluation.
Strongbox Lock & Safe Co. of California has served local communities for over 42 years. We’re named for the iron box where your grandfather kept the deed - solid, straightforward, built to last. If you need a residential locksmith in Fontana who quotes a real price, shows ID at the door, and stands behind the work in writing, call (833) 294-4584. Estimates are free. The person who answers will be a live human being, any hour of any day.
Written by Gil Sanderson, Owner at Strongbox Lock & Safe Co. of California, serving Fontana and the Inland Empire since 1982.