Fast, Reliable Lock Installation & Rekey Across Seguin
Lock installation and rekeying in Seguin, TX typically runs $120-$380 depending on hardware, and most jobs are completed same-day. Our Lock Installation & Rekey team drives to Seguin regularly from our San Antonio office, with scheduled appointments available throughout Guadalupe County and emergency response when you need it. Call (844) 697-1013 for a flat price quote before we roll - the number we give is the number on the invoice.
We’ve been working in Seguin long enough to know the difference between a door on North Austin Street and one in a new subdivision off Kingsbury Road. The hardware isn’t the same. The walls aren’t the same. The fix isn’t the same. That’s why we stock both antique mortise lock parts and the latest smart-lock kits on every truck. No waiting for a second trip.
Why Strongbox Lock & Safe Co. of San Antonio Is Seguin’s Preferred Lock Installation & Rekey Company
Strongbox Lock & Safe Co. has served San Antonio communities for over 42 years. In Seguin specifically, we’ve built our reputation on showing up when we say, quoting honest prices on the phone, and standing behind the work. Our 90-Day Done Right Promise means if something isn’t right, we come back. No paperwork to file, no argument, no runaround.
Our technicians are background-checked, uniformed, and present company ID at every door in Seguin. After the bait-and-switch stories we’ve heard from customers on Court Street and around the Guadalupe County Courthouse, we don’t think that’s optional. It’s the minimum.
Calls are answered by a live person, 24/7. Nights, weekends, holidays. No voicemail trees, no callback queues. When a lock fails in Seguin, you talk to someone who can dispatch help, not a recording.
We know the local conditions. The swollen door frames in the historic district. The builder-grade deadbolts failing early in the subdivisions near the Continental Tire plant. The keypad locks damaged in the February 2021 freeze. This isn’t theoretical for us. We’ve fixed all of it in Seguin.
Our Lock Installation & Rekey Services in Seguin
Smart Lock Installation
Smart lock installation in Seguin runs $180-$340 for most residential doors, including the lockset, installation, and connection to your existing Wi-Fi or Bluetooth system. In the newer subdivisions catering to San Antonio and Austin commuters, we’re installing more smart locks than ever - homeowners want keyless entry for family members, temporary codes for dog walkers, and the ability to check if the door is locked from their phone.
We install and service Schlage, Yale, and Kwikset smart hardware, and we’ll tell you straight if your door prep is compatible before we drive out. Some of the post-2000 tract homes in Seguin have doors that need minor drilling or strike-plate adjustment. We handle that on the spot. No subcontractor, no return visit.

Keyless Entry Systems
Keyless entry installation in Seguin typically costs $150-$280, depending on whether you want a basic keypad or a connected system with app control. For shift workers at the Continental Tire plant and surrounding industrial suppliers, keyless entry eliminates the risk of lost keys during odd hours. We’ve installed these for families in the subdivisions off US-90 who need reliable access without fumbling for keys in the dark.
Our keyless entry systems work with existing deadbolt prep in most Seguin homes. For older properties with non-standard backsets or thick limestone walls, we adapt the installation rather than forcing hardware that doesn’t fit. Done right, and backed in writing.

Keypad Lock Installation & Replacement
Keypad lock replacement in Seguin runs $140-$260. This is one of our most frequent calls in the 78155 and 78156 ZIP codes, especially since the 2021 winter storm. Exterior keypad locks exposed to Seguin’s humidity and temperature swings suffer corrosion, button failure, and circuit board damage. We’ve replaced dozens of these in the industrial areas near Continental Tire, where dust and freeze cycles compound the problem.
We stock weather-resistant keypad models from Schlage and Baldwin that hold up better in Seguin’s conditions. If your keypad is sticking, dimming, or failing to respond, it’s usually cheaper to replace with quality hardware than to nurse along a failing unit. We’ll give you both numbers on the phone.

Biometric Lock Installation
Biometric lock installation in Seguin starts at $220 and ranges to $400 for fingerprint-enabled deadbolts with backup key override. These are less common in Seguin’s older stock but growing in popularity for home offices and dedicated workshop spaces in newer construction. We install fingerprint readers that store multiple profiles, so family members or authorized workers have access without code sharing.
Biometric locks require precise alignment and clean power. We don’t install these on doors with known frame issues without addressing the underlying problem first. That’s the Strongbox difference - we fix the door, not just slap on hardware.

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.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Seguin
We carry and install Baldwin, Mul-T-Lock, and Sargent hardware on every Seguin job, along with Schlage, Medeco, Abloy, Yale, Kwikset, and Sargent. Not every lock belongs on every door. A vintage mortise set in a limestone home on North Austin Street needs different treatment than a modern deadbolt in a townhome near the Continental Tire plant. We stock parts for both on our trucks, which means faster completion and no waiting for special orders. When you call (844) 697-1013, we’ll ask about your door type, your existing hardware, and what you’re trying to solve. Then we’ll recommend the right brand for the job, not just what’s on sale.
Common Lock Installation & Rekey Problems We See in Seguin Homes
- Swollen wooden door frames misalign deadbolts. In Seguin’s historic downtown district, summer humidity causes 1840s-1900s door frames to expand and shift, pulling deadbolts out of strike-plate alignment. We regularly relocate strikes and adjust frames to restore smooth operation without replacing good hardware.
- Builder-grade deadbolts fail prematurely in tract subdivisions. The post-2000 homes near Kingsbury Road and the US-90 corridor often came with basic deadbolts that corrode and bind in Seguin’s humid summers. We replace these with Kwikset or Schlage grade-2 hardware that lasts.
- Keypad locks damaged by industrial dust and freeze cycles. Properties near the Continental Tire plant see accelerated keypad wear from airborne particulates. Combined with the 2021 freeze damage, many Seguin businesses and homes needed complete keypad replacement. We install weather-sealed units rated for tougher conditions.
- Antique mortise locks need rekeying without replacement. Original mortise sets in Seguin’s limestone homes often just need new pins and a fresh key. We rekey these in place, preserving the hardware and the door’s integrity. Replacement is only when the case or bolt is physically broken.
Pricing for Lock Installation & Rekey in Seguin, TX
Here’s what lock installation and rekeying costs in Seguin’s market:
| Service | Typical Range in Seguin |
|---|---|
| Standard rekey (per cylinder) | $45-$75 |
| Deadbolt installation (customer-supplied) | $85-$140 |
| Deadbolt installation (with grade-2 hardware) | $120-$190 |
| Smart lock installation | $180-$340 |
| Keyless entry / keypad lock installation | $140-$260 |
| Biometric lock installation | $220-$400 |
| Antique mortise lock rekey | $75-$130 |
| Strike-plate relocation / frame adjustment | $60-$110 |
These are flat prices quoted on the phone before we dispatch. The price we quote is the price you pay. Factors that can push toward the higher end: non-standard door prep, thick limestone or masonry walls requiring longer screws and specialized anchors, and smart locks needing Wi-Fi bridge setup or app configuration.
We offer free estimates in Seguin - call (844) 697-1013 and we’ll walk through your situation. Seniors and veterans receive a permanent 5% discount. Any repair over $250 qualifies for $50 off. And if you have a written estimate from another locksmith, we’ll give you a free second opinion.
We Also Serve Cities Near Seguin
Our Lock Installation & Rekey in Seguin coverage extends throughout Guadalupe County and into the I-35 corridor. We regularly work in New Braunfels, Cibolo, Schertz, and Selma - same flat pricing, same live-answer dispatch, same 90-Day Done Right Promise. If you’re unsure whether we cover your address, call (844) 697-1013 and we’ll confirm.
Serving Seguin, TX - Our Local Coverage Area
We’re based in the Seguin 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 Seguin
Yes. We rekey and repair antique mortise locks in Seguin’s 1840s-1900s limestone and wood-frame homes, including the historic district around North Austin Street and the Guadalupe County Courthouse. We stock replacement springs, bolts, and key blanks for common mortise patterns, and we work with the existing hardware rather than forcing modern conversions where preservation matters. Call (844) 697-1013 for a free assessment - we’ll look at what you have and give you honest options.
Yes, and we do this regularly for commuters and shift workers in subdivisions near the Continental Tire plant. Most post-2000 Seguin townhomes have standard 2-3/8″ backset prep that accepts Schlage, Yale, or Kwikset smart locks without modification. We install, connect to your Wi-Fi, test all functions, and show you how to manage codes before we leave. Typical cost is $180-$340. Call for a flat quote.
Replace it. The 2021 hard freeze damaged pin-tumbler cylinders and exposed keypad electronics across Guadalupe County, and many Seguin properties are still running compromised hardware. We stock weather-resistant keypad locks from Schlage and Baldwin rated for wider temperature ranges and better moisture sealing. Replacement runs $140-$260. Continuing to use a freeze-damaged lock risks complete failure at the worst moment. Call (844) 697-1013 - estimates are free.
Yes. We design and install master key hierarchies for Seguin commercial clients, including industrial facilities, multi-tenant buildings, and fleet operations. A typical master key system for a 20-door Seguin business runs $800-$1,800 depending on the hierarchy complexity and hardware grade. We use Mul-T-Lock or Sargent high-security cylinders for environments where key control is critical. All commercial work is backed by our 90-Day Done Right Promise. Call for a site evaluation.
Scheduled appointments are typically available within 24-48 hours, and emergency lockout response is same-day. For rekeys that aren’t urgent, we book precise arrival windows and call when we’re en route. We know Seguin’s layout - the historic district’s narrow streets, the subdivision loops off Kingsbury Road, the industrial access roads near Continental Tire - so we don’t waste time getting lost. Call (844) 697-1013 to book or request emergency dispatch.
Written by Calvin Dressler, Owner at Strongbox Lock & Safe Co., serving Seguin and San Antonio communities for over 42 years.