Smart locks
House lockouts
Re-keying
Deadbolt upgrades
Schlage
Kwikset
Car keys & fobsNon-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.
Get your free estimateLocksmith in South Houston, TX
Rekey Locks in South Houston means working on homes that were mostly built between 1940 and 1970, and the Gulf Coast humidity has been swelling and rusting their hardware for decades. Knight Locksmiths handles everything from a straightforward Kwikset rekey on a Spencer Highway bungalow to keying-alike a set of padlocks on a truck yard gate off Allen-Genoa. We work with Schlage, Kwikset, Yale, Baldwin, Medeco, and Mul-T-Lock, so a rekey here usually means matching whatever got installed over 60 years of piecemeal repairs. Call (833) 589-8049 when you need a lock that actually works.
Why South Houston Homes Are Different
South Houston (77587) is a dense, working-class city of about 17,000 people wedged between Houston and Pasadena along the I-45 and Sam Houston Tollway corridor. The housing stock is mostly older postwar single-family homes, small 1940s-to-1960s frame and brick-veneer houses on narrow lots. A lot of these places have been converted, subdivided, or turned into rentals over the years, so we routinely find two or three different lock brands on a single door, with worn strike plates and retrofit hardware that was never quite lined up right.
The climate does real damage here. Gulf Coast humidity and driving rain push moisture into slab-on-grade door frames, and the summer heat then dries everything out again. Wood jambs swell and shrink, gates sag, and deadbolts stop throwing cleanly. We see more failed alignments and rust-seized cylinders in South Houston than we do in the drier parts of the metro. Add in the rail and freight corridor along the old Galveston, Houston & Henderson line, and a locksmith here can go from rekeying a grandmother’s 1950s bungalow to keying a warehouse side door in the same afternoon. Many South Houston properties carry multiple padlocks and gate locks that get keyed alike rather than a single deadbolt, which changes how we quote and plan the job.
Styles & brands we work with







Our Main South Houston Services
Most calls we get in South Houston fall into two camps: someone locked out of a vehicle on a commercial strip or industrial street, and someone who needs a lock changed or secured right now after a break-in, a tenant turnover, or a lost key. Both are covered below.
Car Key Replacement in South Houston
Lost car keys and lockouts in South Houston happen a lot in the commercial and industrial zones, where fleet vans, box trucks, and work pickups sit in yards and loading areas. The mix of residential blocks and warehouses means a key can disappear anywhere from a driveway off College Avenue to a distribution lot near the tollway. We cut and program replacement keys on-site for most makes, including transponder and fob systems, without sending you to a dealership. Local weather matters too: humidity can compromise key fob electronics, and a dead fob is not always a lost key. Read more on the dedicated service page: Car Key Replacement in South Houston.

Emergency Locksmith in South Houston
An emergency locksmith call in South Houston often means a storefront roll-up door that will not open at 6 a.m., a tenant lockout on a rental property, or a back gate that will not secure after a storm. We treat emergency response as a defined service, not an afterthought, and we arrive with the tools and cylinder stock to handle older residential hardware as well as commercial-grade locks. If a door has been kicked or a lock drilled, we can repair or replace the hardware on the spot. See Emergency Locksmith in South Houston for more detail.

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.
Rekey Locks in South Houston
Rekey Locks in South Houston almost always means an older home with a mix of lock brands accumulated over decades. The Gulf Coast humidity swells wood door jambs and rusts cylinders, and the postwar housing stock here tends to have worn mortise locks or older cylindrical sets that have been retrofitted repeatedly. Rekeying is often smarter than replacing, and we will tell you which one you actually need after looking at the door. We rekey Schlage, Kwikset, Yale, Baldwin, Medeco, and Mul-T-Lock hardware, and we can key multiple locks alike so one key works every door. For the full picture on our rekey work, see Rekey Locks.
Lock Rekey
Signs you need it
You have moved into a new home or rental in South Houston and have no idea who still holds copies of the existing keys.
What it costs in South Houston
Lock rekeying in South Houston typically runs $65 to $180 depending on cylinder type and how many locks are involved.
How we do it
We remove the cylinder, swap the internal pins to match a new key, and test the lock through several cycles.
Rekey Door Lock
Signs you need it
Your door lock turns with the old key but feels loose or does not throw the deadbolt cleanly, or a tenant or roommate has moved out.
What it costs in South Houston
A single door lock rekey in South Houston generally costs $65 to $160, with additional locks priced per cylinder.
How we do it
We disassemble the lock, re-pin it to the new key, lubricate the cylinder, and adjust the strike plate if the humidity has shifted the door.
Keyed Alike
Signs you need it
You carry a ring of three or four different keys for the house, back door, gate, and padlocks, and you would rather carry one.
What it costs in South Houston
Keying multiple locks alike in South Houston starts around $85 and rises with each additional cylinder, typically $15 to $25 per lock after the first.
How we do it
We pin each cylinder to a single common key, then verify every lock operates smoothly with that key before we leave.
What Rekey Locks Costs in South Houston
| Item | Typical range in South Houston |
|---|---|
| Single lock rekey | $65 – $160 |
| Two to three locks keyed alike | $120 – $250 |
| Additional cylinders beyond three | $15 – $25 each |
How much does it cost to rekey a house in South Houston?
Most homes in South Houston run $120 to $250 to rekey every exterior lock. The total depends on how many doors and cylinders we find, and whether any need repair before re-pinning.
Is rekeying better than replacing locks in South Houston?
Usually yes, if the hardware itself functions. Rekeying costs less than replacing and gives you the same result: old keys stop working. We will tell you honestly if a lock is too worn to rekey.
Brands We Service in South Houston
We carry pins, cylinders, and parts for Schlage, Kwikset, Medeco, Yale, Baldwin, Mul-T-Lock, Sargent, and Abloy. If a South Houston door has a Medeco high-security cylinder or a Baldwin mortise set, we can rekey or repair it without waiting on a special order in most cases. Parts for common residential brands fit same-day. For detail on any of these, see our brands.
Pricing for Locksmith in South Houston, TX
| Service | Typical range in South Houston |
|---|---|
| Lock rekey (single cylinder) | $65 – $160 |
| Rekey door lock | $65 – $160 |
| Keyed alike (multiple locks) | $85 – $250 |
| Additional cylinders keyed alike | $15 – $25 each |
| Car key replacement | $150 – $450 |
| Emergency lockout response | $75 – $200 |
| Deadbolt replacement | $90 – $250 |
| High-security cylinder rekey (Medeco, Mul-T-Lock) | $25 – $60 per cylinder above standard |
What pushes a South Houston price upward is usually age and climate: swollen wood jambs that need the strike plate reset, rusted exterior hardware, or a rental door that has had three different lock sets hacked into it over the years. We quote the full price on the phone before anyone is dispatched, and that is the price on the invoice, with no call-out surcharge added on arrival.
Neighborhoods We Serve in South Houston
South Houston is small geographically, but the lock work changes from block to block. We work across the whole 77587 ZIP, from the residential streets north of Spencer Highway down to the industrial yards and shopfronts near Allen-Genoa and the freight corridor. Response within South Houston is typically quick because the city is compact and centrally located.
- Downtown South Houston, around Spencer Highway and Dallas Street
- Residential blocks north of Spencer Highway toward the Houston line
- Areas along Allen-Genoa Road and the Sam Houston Tollway frontage
- Industrial and warehouse stretches along the old GH&H rail corridor
- Streets near College Avenue and the Pasadena border
Service Area – Cities Near South Houston
Knight Locksmiths serves South Houston and the surrounding communities along the I-45 and Sam Houston Tollway corridors. If you are in Pasadena, TX, Galena Park, TX, Deer Park, TX, or Jacinto City, TX, we cover those areas too. Call (833) 589-8049 and we will confirm coverage for your specific address before dispatch.
Serving South Houston, TX — Our Local Coverage Area
We’re based in the South Houston 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 About Locksmith in South Houston
South Houston is centrally located within the metro, so response is usually fast, often within the hour. We cover the full 77587 ZIP and confirm an arrival window on the phone before we send anyone. If it is an emergency, say so when you call.
No permit is required for rekeying or replacing residential locks or deadbolts in South Houston. Commercial master-key or access-control work on leased industrial property may need owner approval, but not a city permit for the lock work itself.
Yes. A large share of South Houston’s lock work is commercial, from shopfront and warehouse lockouts to fleet and box-truck key replacement. We handle those jobs with the same scheduling and pricing model: a full quote on the phone, no surprises on arrival.
If you need a locksmith in South Houston, call Knight Locksmiths at (833) 589-8049 for a free estimate. We will tell you up front what the job costs, and that is what you will pay.
What happens when you call
- 1A real person answersNo phone trees — talk to a local locksmith pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you — the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What South Houston Customers Say
"Rekeyed every lock in the house the day after we closed. Six doors, all matched to one key, done in about ninety minutes."
— Gilbert Ramirez"Does good work. Card payment was a bit of a production, so have another option handy."
— Bryce Hoffman"Quoted a price on the phone and honored it. After the last locksmith I called, that alone is worth a review."
— Whitney Lawson