Non-destructive entry first, always - and we re-key Schlage, Kwikset, and Baldwin locks on the spot while you watch
You get a price before we start. It does not change when we arrive. No surprises.
Fast, Reliable Lock Installation & Rekey Across Glendora
Lock installation and rekeying in Glendora runs $30-$65 per cylinder for a standard rekey and $120-$320 for new hardware installation, quoted in writing before we dispatch. That price is the price on the invoice. No add-on at the door. No bait-and-switch. We’re Novak Lock & Security, and we’ve served Glendora homeowners since our founding in 2002. Call (331) 310-8471 and a live person answers, 24/7.
Most Glendora homes we visit fall into one of three eras: pre-WWII Craftsman bungalows near Foothill Boulevard, 1950s-1970s ranch tract houses across the mid-city grid, or hillside custom builds from the 1980s onward. Each era has its own failure modes. We know them because we’ve opened, rekeyed, and replaced locks in all three for more than two decades.
Why Novak Lock & Security Is Glendora’s Preferred Lock Installation & Rekey Company
Daniel Novak founded this company on one rule: the price quoted on the phone is the price on the invoice. That rule is Haven Standard Clause 1, and it has not changed since 2002. When you call about a rekey on a 1960s ranch home south of Foothill Boulevard, the dispatcher gives you a firm number. The technician who arrives is not permitted to change it.
Every Novak technician serving Glendora is background-checked and uniformed. Every visit ends with a documented photo record left with you. Not a promise, a procedure. We carry a full range of cylinders, deadbolts, and smart-lock hardware on the van, so a typical Glendora service call is completed in one trip.
Our work across Glendora spans the flat mid-city grid, the historic Old Glendora district along Foothill Boulevard, and the hillside streets north of Sierra Madre where Santa Ana winds and summer heat create door-frame movement you won’t find in Covina or Azusa. That local knowledge matters when a deadbolt binds in July.
Our Lock Installation & Rekey Services in Glendora

Smart Lock Installation
Smart lock installation in Glendora typically runs $180-$350 per door, including the lock, labor, and programming. The catch on many Glendora homes is the door itself. Hillside aluminum frames expand in heat, and older ranch doors have shifted enough over 50 years that the deadbolt no longer lines up with the strike plate. We deepen the strike, realign the frame, and only then mount the smart lock. A smart lock installed on a misaligned door will eat batteries and eventually strip its own motor. We fix the door first.
Keyless Entry and Keypad Lock
Keypad lock installation in Glendora runs $140-$280 per door. These are common on garage entry doors and back doors where homeowners want code access without carrying a key. On mid-century ranch homes, we often replace a worn original knob with a keypad deadbolt and convert the knob below to a passage function. Two locks doing one job is the standard configuration.
Biometric Lock
Biometric locks in Glendora run $250-$450 installed. We recommend them selectively. Fingerprint readers fail in direct sun exposure, which matters on west-facing doors in the north foothills where afternoon heat can exceed 105°F. For those doors, a keypad with a physical key override is the better call. We’ll tell you that before you spend the money.
Key Duplication
Standard key duplication in Glendora runs $3-$8 per key when done in a shop visit or added to a service call. High-security keys from Medeco or Mul-T-Lock require authorization cards and run $15-$30 per key, because blanks are controlled and tracked. We duplicate those on-site from the card, not from the key itself.
Trusted Brands We Service in Glendora
We’re factory-authorized for Medeco, Mul-T-Lock, Yale, and Baldwin, and we service Schlage and Kwikset across every Glendora neighborhood. For homeowners in the foothills who want a lock that cannot be bumped or picked by standard tools, Mul-T-Lock and Medeco cylinders are the default recommendation. For Craftsman bungalows near Old Glendora where the original Baldwin mortise lock is worth keeping, we rekey the existing cylinder rather than gutting the hardware. Parts for these brands are stocked on our vans, so a Glendora call does not wait on a parts order.
Common Lock Installation & Rekey Problems We See in Glendora Homes

- Warped aluminum door frames on hillside homes. Santa Ana wind events and summer radiant heat cause aluminum frames north of Sierra Madre to expand and contract. A deadbolt that throws fine in January binds in August. The fix is a deepened strike plate and a realigned frame, not a new lock.
- Worn pin-and-tumbler cylinders on 1970s Kwikset knobs. Ranch homes south of Foothill Boulevard often still have original knobs with cylinders worn to the point where rekeying is no longer reliable. Keys snap, pins bind, and a rekey that should cost $30 becomes a failed job. We replace the hardware and tell you why before we start.
- Smart locks retrofitted onto mortise lock cutouts. Pre-WWII Craftsman bungalows near Foothill Boulevard were built with mortise locks, not bored cylindrical lock holes. A smart lock does not drop into that cutout. Attempting it destroys the door prep. We use a wrap plate or install a mortise-compatible cylinder.
- Post-purchase rekey delays on 30-40 year owner-occupied homes. When a long-term Glendora owner finally sells, the buyer often inherits decades of duplicate keys. We regularly find two or three generations of keys circulating in a single mid-city block. That is a full hardware replacement, not a rekey.
Pricing for Lock Installation & Rekey in Glendora, CA
Here are the ranges we quote in Glendora, in writing, before anyone is dispatched:
- Standard rekey, first cylinder: $45-$65
- Each additional cylinder on the same visit: $30-$45
- New deadbolt installation (customer-provided lock): $85-$120
- New keypad or smart lock installation (lock included): $140-$350
- High-security cylinder installation (Medeco or Mul-T-Lock): $95-$180 per cylinder
- Key duplication, standard: $3-$8 per key
- Key duplication, restricted/high-security: $15-$30 per key
What affects the price in Glendora specifically: the age of the door and frame, whether the existing cylinder is rekeyable, and whether hillside heat has warped the strike alignment. A 1970s ranch door with a worn cylinder pays for a rekey and gets a replacement recommendation instead. A hillside door with a binding deadbolt pays for the strike-plate work. The quote you hear on the phone is the quote on the invoice. Free estimates for any written scope. Call (331) 310-8471.
We Also Serve Cities Near Glendora

Novak Lock & Security serves Glendora and the neighboring communities of Azusa, San Dimas, Covina, and La Verne. Dispatch and scheduling are coordinated from our Los Angeles office, and crews serve Glendora locally. Whether you’re in a 1920s bungalow near Foothill Boulevard or a hillside custom home above Sierra Madre, the same Lock Installation & Rekey in Glendora team handles the call.
Serving Glendora, CA - Our Local Coverage Area
We’re based in the Glendora 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 - Lock Installation & Rekey in Glendora

Yes, if the mortise body is intact, we can rekey the original cylinder without replacing the hardware. We remove the cylinder, repin it to a new key, and reinstall it in the existing mortise body. If the body itself is seized or the internal springs are broken, replacement is the only option and runs $180-$320 for a comparable mortise lock. Call (331) 310-8471 and describe the lock; we’ll tell you which situation you’re in before anyone drives out.
Not necessarily. Many Glendora insurance policies with Very High Fire Hazard Severity Zone coverage require a documented rekey or security audit after an evacuation return, not a full replacement. If your cylinders are in good condition, a rekey at $45-$65 per cylinder satisfies that requirement. The exception is a master key that has not been changed since the home was built. That situation calls for a restricted keyway replacement, which we quote in writing. Call (331) 310-8471 with your policy language and we’ll match the work to the clause.
It depends on cylinder wear. If the knob turns smoothly and the key inserts without resistance, a $45-$65 rekey is worthwhile. If the key is loose in the cylinder, binds on removal, or has snapped before, the pin-and-tumbler stack is worn past the point where rekeying holds. We replace the knob or convert to a deadbolt-and-passage setup, and the price is quoted before we start. We will not sell you a rekey that fails in six months.
Yes, but we correct the door first. Smart locks have motorized bolts that bind on misaligned strike plates. On hillside homes where summer heat has warped the aluminum frame, we deepen the strike, file or realign the plate, and check the throw under load before mounting the smart lock. We’ll show you the photo record of the alignment before and after. If the warp is too severe for correction, we’ll tell you that a keypad deadbolt with a physical override is the better choice.
Replace the hardware, not the pins. A rekey changes the key that operates the lock, but it does nothing about who already has copies of the new key geometry if duplicates were cut from the old one. On a home with decades of unaccounted keys, our recommendation is full cylinder or hardware replacement with a new keyway, quoted at $140-$320 per door. We document the old hardware before we remove it and hand you the new keys on a system card showing which key operates which door. Call (331) 310-8471 for a written scope.
Our standard response time to Glendora is 45-75 minutes for lockouts and rekeys, depending on whether you’re in the flat mid-city grid or up in the north foothills. Emergency calls are answered by a live person at any hour. The dispatcher gives you a firm price before the tech leaves the office.
Yes. That is Haven Standard Clause 1, and it has been in place since 2002. The dispatcher quotes a firm price based on the work you describe. The technician who arrives is not permitted to change that number. If the scope changes because we find something different on-site, we stop, show you, and quote the change in writing before continuing. You approve it or you don’t. Call (331) 310-8471 for a free estimate.
Written by Daniel Novak, Owner at Novak Lock & Security, serving Glendora since 2002.






