What does a lock installation job actually include?
Lock installation means fitting a lock that is not on the door yet, or fitting a different kind of lock than the one that was there. Customers call it door lock installation, new lock installation, or just getting a proper lock put on. The work is the same either way: choose hardware that suits the door, prepare the door and frame, fit the lock, and make sure it runs smoothly when the door is open, closing, latched and bolted.
In South El Monte the requests usually fall into three groups:
Installation is a different job from rekeying or repairing a worn lock. Here the door matters as much as the lock. A very good deadbolt in a badly drilled door, or screwed into a soft frame with short screws, will still fail. Most of the trouble we see with newly fitted locks traces back to the fitting, not the hardware, which is why we spend our time on the door.
- A first lock or a missing lock: a door, gate or side entrance with a bare bore, a broken-out set, or nothing at all.
- An upgrade: a basic knob set swapped for a deadbolt and lever combination, or a light-duty lock replaced with a heavier one.
- An added lock: a second point of security, such as a deadbolt above an existing latch, or a keyed lock on a door that only had a privacy set.
Which lock belongs on which door?
There is no single right lock. The door material, how the door is used and who needs keys decide it. These are the main types we fit.
Residential lock installation and commercial lock installation draw on different hardware. Commercial locks are generally built for heavier daily traffic, and commercial doors may carry fire-rating or exit requirements that limit what can go on them. We look at the existing door and any labels on it before suggesting hardware, and we say so plainly when a lock you picked out will not suit the door.
- Front door lock installation: most front doors do best with a deadbolt plus a separate handle or lever set, so the latch keeps the door shut and the deadbolt does the securing. We pay close attention to the strike plate and screw length, because the frame is where a kicked door usually gives way. If a deadbolt is all you want, our deadbolt installation page goes into more detail.
- Lever lock installation: lever handles are easier to work with a full hand, a wrist or an elbow, and they are common on shop, office and interior doors. A lever set has to match the door's handing and prep, so we confirm which way the door swings before anything is ordered.
- Mortise lock installation: a mortise lock sits in a deep rectangular pocket cut into the edge of the door. You find them on older doors and on many commercial and storefront doors. Fitting one means matching the lock body to the existing pocket, or cutting a new pocket, then lining up the cylinder, trim and strike. It is more involved than a bored lock, and not every door can take one.
- Security lock installation: this covers higher-grade deadbolts, reinforced strike plates, door reinforcement and cylinders built to resist picking and drilling. The right level depends on the door and on what is behind it. Our high-security locks page explains the options.
- Smart and keypad locks: these suit many doors, but they add questions about power, fit and a backup key. We cover them on our smart lock installation page.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366How do we install a new lock, step by step?
Every door is a little different, but this is the order we follow on almost every job.
Most installations are finished at the door by our mobile technicians. If a job needs a special part or a bigger door repair first, we tell you at the start rather than guessing and surprising you later.
- You call (213) 577-1366 and tell us the type of door, the lock you have in mind or what the door needs to do, and the address. We ask a few questions so the van carries suitable hardware.
- We look at the door in person: material, thickness, condition, existing holes, the frame, and which way it swings.
- We recommend hardware and explain why, then tell you the total for the work before we begin.
- We prepare the door: marking, boring or enlarging holes, cutting the latch mortise or a full mortise pocket where needed, and repairing or reinforcing a damaged edge or jamb.
- We fit the lock body, cylinder and trim, and set the strike plate with screws long enough to reach the framing behind the jamb.
- We test with the door open, swinging shut, latched and bolted, then fully closed with the key turned from both sides, adjusting until nothing binds or rattles.
- We hand over the keys, show you how the lock works, and clean up the shavings and packaging.
What affects the cost of lock installation in South El Monte?
We do not put figures on a web page, because an honest number depends on the door in front of us. These are the things that move the total:
Usually the more economical route is fitting good hardware once, correctly, rather than putting on a lighter-cost lock that fails or needs the door re-drilled later. We would rather say that plainly than push you toward the biggest option. You get the full figure before any drilling starts.
- The lock itself: grade, brand and type. A basic bored lock, a heavy-duty commercial lever set and a mortise lock sit in very different places.
- How many locks: several doors on one visit are handled more efficiently than the same doors on separate trips.
- Door material and condition: solid wood, hollow-core, hollow metal, steel and aluminum storefront frames each need different tooling, and a damaged or over-drilled door may need repair first.
- How much preparation: fitting into existing holes is straightforward, while boring new holes, cutting a mortise pocket or adding a reinforcement plate takes more work.
- Keying: keyed-alike sets, restricted keys or a master key arrangement add planning and parts.
- Timing and travel: after-hours and holiday calls are priced differently from scheduled daytime work, and South El Monte is about 26 miles from our Westwood storefront, so travel is part of mobile service.
- Who supplies the hardware: you can buy a lock and have us fit it, and we will tell you if it is a poor match for the door.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366Why call Wilshire Lock & Key for a new lock?
We have been in business since 1987. David, our owner and lead technician, oversees how we fit locks and what we recommend, so the work reflects one person's standards rather than a rotating cast of strangers. Our mobile locksmith service means the installation happens at your door, with the tools and hardware for the job in the van.
- In business since 1987, with decades of doors behind us.
- A real storefront at 10740 Wilshire Blvd in Westwood, plus mobile service vans, so there is an actual shop behind the technician who arrives.
- One company, no dispatch middlemen: your call comes to us, not to a call center that resells the job to whoever is free.
- David's oversight of fitting standards and recommendations.
- Phone answered 24 hours a day, 7 days a week, year-round, at (213) 577-1366, and service across 140 cities in Los Angeles and Ventura counties, South El Monte included.
What does lock installation look like around Garvey Avenue, Santa Anita Avenue and Rush Street?
South El Monte, ZIP code 91733, is a compact city where homes and workplaces sit close together. That mix shapes what people ask us to install, and it is why we never treat the job as one-size-fits-all.
Most homes here date from the 1940s to the 1960s, in modest postwar single-family tracts, including the residential area around New Temple Park. Doors from that era can be thin, worn at the edge, or already drilled for earlier hardware, so a new front door lock installation often starts with checking and reinforcing the door and jamb. Security screen doors are a common retrofit here, and putting a lock on one is its own job: the frame is lighter, and the lock has to work alongside the main door behind it without the handles or bolts getting in each other's way.
A large share of the building stock is commercial and industrial. In the Rush Street industrial district, the work is warehouse padlocks, hasps and roll-up doors, and installation there is about matching rugged hardware to the opening: placing the hasp where it can be mounted into metal that carries the load, and choosing locks that handle daily use. Along Garvey Avenue, small manufacturers often want many doors keyed under one system. If that is you, plan the keying before the locks go on, and read about a master key system first, because it changes which cylinders we fit.
Auto shops along the Santa Anita Avenue corridor most often call us for repair on worn commercial locks. When a door is past repair, the next step is new commercial lock installation. Our commercial door hardware page covers the heavier-duty options for shop, office and bay doors.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366How does South El Monte heat affect new locks and doors?
Summers here bring inland basin heat, hot and dry, and the adjacent Whittier Narrows open space brings some cooling in the evening. The main climate effect on locks is thermal expansion. Wood residential doors swell and shrink with temperature and humidity, and metal industrial doors expand in the heat and shift against their frames.
For installation, that means we leave sensible clearance for the latch and bolt rather than fitting everything tight to the strike. We check how the door sits in the frame before drilling and, when we can, test the bolt after the door has had time to warm up. A deadbolt that throws smoothly on a cool evening but drags on a hot afternoon is a fitting problem, and we try to catch it before we leave. If a door rubs, we would rather adjust the door or the strike than force the new lock to cope.
How do you check a locksmith before they install anything?
California requires locksmith companies to hold a BSIS LCO license, issued through the Bureau of Security and Investigative Services. Ask any locksmith for that license number before work begins, and check it with the state yourself. Also ask for the business name and address, whether the person arriving works for that company, and the total for the job before tools come out. Be cautious about anyone who will not give a company name or who changes the story once they are standing at your door.
When is a new lock not the right fix?
Sometimes installation is not what the situation needs. If the lock works and you only want to change who holds keys, rekeying is usually the more economical route. If a lock is worn or damaged but the door is sound, lock replacement swaps the unit without redoing the door. If you are locked out right now, that comes first and the installation can follow. We will tell you honestly when a different service is the better one for your door.
Frequently asked questions
How much does lock installation cost in South El Monte?
It depends on the lock, the door and the preparation involved. Grade of hardware, door material, how many locks, keying, and whether the call is after hours all change the total. We look at the door, recommend hardware, and give you the full figure before we start any work.
How long does a lock installation take?
It varies with the door. Fitting a lock into existing holes goes quickly, while boring new holes, cutting a mortise pocket or reinforcing a damaged jamb takes longer. When we see the door we tell you what to expect, and we do not rush the testing at the end.
Can you install a lock that I bought myself?
Yes. We will check that it suits the door, the backset and the way the door is used. If it is a poor match, we say so before cutting anything, and suggest an alternative that fits the opening.
Do you handle commercial lock installation for warehouses and shops?
Yes. That includes commercial locks on office and shop doors, padlock and hasp setups, and hardware for roll-up and warehouse doors. For businesses with many doors, we can plan the keying first so everything works together.
What is the difference between a deadbolt and a lever lock?
A lever lock is a handle with a latch, which holds the door closed and is easy to operate. A deadbolt is a separate, sturdier bolt that locks into the frame. Many front doors use both: a lever or knob for daily use and a deadbolt for security.
Do I need a mortise lock?
Only if your door already has a mortise pocket, or you want that style and the door is thick and solid enough to take one. Many doors are better served by a standard bored lock. We check the door before recommending a mortise lock.
Can you put a lock on a security screen door?
Yes. Screen door frames are lighter than main doors, so the lock has to be chosen and positioned to suit the frame, and to avoid clashing with the main door behind it. We look at the frame before choosing the hardware.
Can all my new locks use the same key?
Often, yes. Many lock lines can be keyed alike, so one key works for several doors. If the locks you want cannot be keyed alike, we tell you up front and suggest options that can.
Can you install a lock at night or on a weekend?
Our phone is answered 24 hours a day, 7 days a week, year-round, at (213) 577-1366. Call and describe the door and what you need. After-hours work is priced differently from scheduled daytime work, and we explain that before we start.
More locksmith help in South El Monte
Lock Installation near South El Monte
Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.
Last updated 2026-10-11.