What does professional lock installation actually involve?
A lock is only as good as the way it is fitted. You can buy a perfectly good deadbolt at a hardware store, put it in a door that is slightly out of square, and end up with a bolt that rubs the strike plate, a latch that needs a shoulder to close, or a lock that works in the morning and sticks by afternoon. Most of the frustration people have with new locks comes from installation, not from the lock itself.
Lock installation is the work of putting a new lock where there was none, or fitting a different type of lock to a door that was prepped for something else. It covers measuring the door and frame, checking that the existing holes are the right size, drilling or chiseling new ones when they are not, setting the lock body, aligning the strike, and then testing the whole thing with the door open, half closed and fully shut. It is a different job from replacing a worn lock with an identical one, and a different job from changing the pins inside a lock you already own.
If you are not sure which of those you need, call us and describe the door. Sometimes a customer asks for a new installation when a lighter-cost fix on the existing hardware would do the job, and we would rather tell you that on the phone than discover it after the work is done.
Which lock goes on which door?
The right hardware depends on the door material, the thickness, how the door is used, and who needs to get through it. Here is how we usually think about the common cases.
Where a lock sits on an exterior door matters as much as the brand name on the box.
- Front door lock installation: a front entry usually wants a deadbolt plus a handle set or lever, fitted so the bolt throws fully into a reinforced strike. If you only need the bolt added, see our page on deadbolt installation in Hacienda Heights.
- Residential lock installation on side and back doors: these doors often get less attention but are used just as much. They need hardware that matches the front door in strength, even if it does not match in style.
- Lever lock installation: lever handles are easier on hands, work for people who struggle with round knobs, and are common wherever accessibility matters. Levers have a handing, meaning left or right, and the wrong handing can leave the handle drooping or binding, so we check it before mounting.
- Mortise lock installation: a mortise lock sits inside a rectangular pocket cut into the edge of the door rather than in two round holes. It is more involved to fit, and the pocket has to be cut or cleaned out precisely. We cover it in its own section below.
- Security lock installation: this means choosing a higher grade of hardware, with hardened parts, longer bolts and stronger strike plates, for doors that face more risk. Where you want restricted keys on top of that, look at high-security locks.
- Electronic and keypad locks: these have extra considerations such as power, door prep and how you want to share access. We handle those on our smart lock installation page.
- Commercial lock installation: shop doors, back-of-house doors and office entries have their own hardware types and exit requirements. More on that further down.
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Call (213) 577-1366How do we install a new lock, step by step?
Every door is a little different, but the sequence is consistent. This is what happens when we come out to your home or business.
- We look at the door first. Material, thickness, condition, and whether it hangs and closes properly all matter. A lock cannot make up for a sagging hinge or a swollen door, so we point those out before fitting anything.
- We confirm what you want the lock to do. Is it for daily use, a rarely used side entry, a rental, or a door that needs to be secured against a specific problem? The answer shapes the hardware we recommend.
- We check the existing preparation. Standard residential doors typically have a large cross bore for the lock body and a smaller edge bore for the latch, and the distance from the door edge, called the backset, comes in a couple of common sizes. If your holes match the new lock, installation is straightforward. If they do not, we correct them cleanly rather than forcing the lock in.
- We prepare the door. That might mean enlarging a bore, cutting a latch mortise so the faceplate sits flush, or filling and re-drilling an area that was badly cut before. Careful work here is what keeps the finished door from looking patched.
- We fit the lock body and the trim or handle set, then set the strike plate in the frame. On exterior doors we use screws long enough to reach the framing behind the door jamb, not just the thin jamb itself, because that is where a lot of forced-entry damage starts.
- We test it properly. The key turns smoothly, the bolt extends fully, the latch catches without slamming, and the door closes the way it should. We also test with the door slightly warm from the sun or slightly swollen, if that is relevant to your house.
- We walk you through the result: how many keys you have, how to operate any special features, and what to watch for as the lock wears in. If you want extra keys cut, our key duplication service can handle that.
What is different about mortise lock installation?
Mortise locks are common on older residential doors, solid wood doors, some apartment and office entries, and a lot of commercial storefronts. Instead of a cylindrical lock body dropped into a cross bore, the mechanism is a boxy case that slides into a deep rectangular pocket in the edge of the door. The cylinder, the handle or lever trim and the spindle all have to line up with that case.
That is why mortise lock installation takes more care. The pocket has to be the right depth and width, the faceplate has to sit flush, the spindle length has to match the door thickness, and the trim has to be squared so the handle moves freely. If the pocket is oversized or out of line, the lock will feel loose or sticky for years.
If you already have a mortise pocket in the door, we can usually fit a new mortise body into it, provided the dimensions match what is available. If you want to move from a cylindrical lock to a mortise lock, the door needs real modification, and we will tell you honestly whether the door is a good candidate. On thin hollow doors or doors with lots of earlier damage, a mortise pocket can weaken the edge, and a different approach may suit you better.
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We answer around the clock, every day of the year.
Call (213) 577-1366What affects the cost of lock installation in Hacienda Heights?
We do not publish prices on a web page, because the real number depends on the actual door and hardware, and a quoted figure that ignores them would not help you. What we can do is tell you plainly what moves the cost up or down so you can judge a quote from us or anyone else.
Hardware grade is the biggest swing. Entry-level residential locks, mid-grade locks and heavy-duty or high-security sets are built differently and priced differently, and the installation may need different strike plates or reinforcement to match.
The condition of the door and frame matters next. A door that is already correctly bored and hangs well is a quicker job than one that needs new holes, a repaired edge, or a frame reinforced before a lock can hold properly.
Other factors that change the work:
- How many locks are being installed, since fitting several to the same property in one visit is usually the more economical route than separate trips.
- Door material: solid wood, hollow-core, metal, fiberglass and glass doors each need different techniques and tools.
- Lock type: a mortise lock or an electronic lock takes more preparation than a standard cylindrical deadbolt.
- Whether you want keyed-alike sets, so one key works every door, which adds some setup.
- Time of day: after-hours and weekend calls are real work at odd hours, and the quote reflects that.
- Travel: our storefront is in Westwood, about 32 miles from Hacienda Heights, and mobile service to your address is part of the picture.
- Whether the lock is something you bought yourself or something we supply. If you bring your own, we will tell you honestly if it is a poor match for the door.
What should lock installation look like around Hacienda Heights homes?
Hacienda Heights, ZIP 91745, is mostly single-family tract housing built in the 1960s and 1970s, running from the flats near Valley Boulevard up into the Puente Hills. That mix shapes what we see on installation calls.
In the North Hacienda Heights flats near Valley Boulevard, most requests are about bringing a house up to date: adding a proper deadbolt where there is only a knob lock, upgrading a tired front door lock, or fitting a matching set on all exterior doors. On homes this age, the original hardware may have been swapped more than once, so we check what is actually on the door and what holes already exist before we plan the work.
Along the Colima Road corridor, townhome and condo complexes bring a different set of questions. Doors are often shared in style across a building, and the association may have preferences about hardware finish or type, so it is worth asking your property manager before you buy a lock. We can fit what you choose and make sure it works smoothly with your door and frame.
On the Hacienda Boulevard corridor and in the hillside streets of the south Puente Hills, many houses sit on slopes with a lot of sun on one side. Hot, dry summers can warp sun-facing doors, and that has a direct effect on how a new lock behaves. A bolt that lines up perfectly in cooler weather can start to bind when the door expands or shifts. When we install on a sun-facing door, we check alignment carefully and leave the bolt and latch with enough working clearance to move freely.
Near Turnbull Canyon, some canyon-edge properties have gates and long driveways, and the canyon winds can slam doors and gates harder than a flatland house would see. For the gate itself, our gate lock repair page is the right place to start, and for the house doors we choose hardware that handles repeated hard closing without loosening.
One scenario we hear from time to time is a family who has just bought a home in the Los Altos or Glen A. Wilson school areas and wants the doors sorted before moving in. In many cases a lock rekey is enough, but if the existing hardware is worn, mismatched or poor quality, installing new locks is the better choice, and we will say which one applies to your house. Coastal corrosion is not an issue in Hacienda Heights, so finish choice is more about looks and wear than salt air.
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We answer around the clock, every day of the year.
Call (213) 577-1366Residential versus commercial lock installation
Residential lock installation is about the household: who needs keys, what the door faces, and how it looks from the street. Commercial lock installation is about a business that has to open every morning, stay secure overnight, and let people leave quickly if there is an emergency.
Storefronts and restaurants in the Colima Road shopping plazas, for example, usually have glass or aluminum doors, or heavy back doors facing service areas. Those need hardware that fits narrow stiles, handles heavy daily use, and allows exit without a key where required. Egress requirements and the way the door is actually used in the building both affect what we can install, and we will talk through them with you before anything is fitted.
For more complete door hardware work such as exit devices, closers and heavy-duty sets, see our commercial door hardware page. Whether it is a single office door or several doors in a plaza unit, we aim to keep the job organized so your business is not tied up longer than necessary.
Why call Wilshire Lock & Key for installation?
We have been in business since 1987, serving 140 cities across Los Angeles and Ventura counties. We run a real storefront at 10740 Wilshire Blvd in Westwood plus mobile service vans, so the person who answers the phone works for the same company that sends the van. There is no dispatch middleman passing your call along to whoever is closest.
David, the owner and lead technician, oversees the work. For installation that matters, because most problems with new locks come from rushed fitting, and rushed fitting is exactly what close oversight is meant to prevent.
Our phone line is answered 24 hours a day, 7 days a week, year round, at (213) 577-1366. If a lock fails or a door will not secure at night, you can reach us. If the job can wait, we are happy to plan it properly and take our time with the door.
One more thing worth knowing: California requires locksmith companies to hold a BSIS LCO license, and you should ask any locksmith for it before they start work. That is a reasonable thing to ask of us, too. And if you are locked out right now rather than planning an install, our house lockout page is where to begin, and our mobile locksmith service explains how we come to you.
How to prepare before we arrive
A little preparation makes the installation smoother and helps us quote accurately over the phone.
- Tell us the door type: wood, metal, fiberglass or glass, and whether it is an exterior or interior door.
- Describe what is on the door now: a knob, a lever, a deadbolt, nothing, or something you are not sure about.
- If you have already bought a lock, keep the box and instructions handy so we can check it fits the door.
- Clear the area around the door so we can work and test it fully open and closed.
- Think about who needs keys and whether you want every exterior door on the same key.
- Mention any door that sticks, rubs or does not close properly, since fixing that is part of a good installation.
Frequently asked questions
What is the difference between lock installation and lock replacement?
Installation means fitting a lock that was not there before, or fitting a different type to a door that was prepared for something else, which may involve drilling or cutting. Replacement swaps a worn or broken lock for one of the same kind. If you are unsure which applies, describe your door and we will tell you. Our lock replacement page covers the like-for-like case.
Can you install a lock I bought myself?
Often yes. We will check that it suits the door thickness, the existing bores and the backset before we start. If it is a poor match or a very low-quality lock for an exterior door, we will say so honestly and let you decide whether to proceed or choose different hardware.
Do you install locks on commercial doors in Hacienda Heights?
Yes. We handle commercial lock installation for shops, restaurants and offices, including storefront doors and back doors. Because exit requirements and door construction vary, we look at the door and how the business uses it before choosing hardware.
Is a mortise lock better than a regular deadbolt?
Neither is better in every case. A mortise lock is a sturdy, integrated unit that suits certain door types, but it needs a properly cut pocket. A good deadbolt on a well-prepared door is a strong and common choice for homes. We recommend based on your door, not on what is more complicated to fit.
Will a new lock stop working when the weather turns hot?
It should not if it is fitted properly. Hot, dry summers in Hacienda Heights can warp sun-facing doors slightly, so we check alignment and clearance during installation. If a door is badly warped, the door itself may need attention for the lock to work smoothly.
How do I choose a lever lock instead of a knob?
Levers are easier to use with a full hand, an elbow or when carrying things, and many people prefer them for that reason. We confirm the handing, left or right, and make sure the lever does not droop or catch on the door. Tell us who uses the door and we can suggest what fits.
Can you install several locks on a house at once?
Yes, and it is often the more economical route compared with separate visits. We can fit matching hardware on all exterior doors and, if you want, set them up so one key works every lock.
Do you offer lock installation at night or on weekends?
Yes. Our phone is answered 24 hours a day, 7 days a week, at (213) 577-1366. After-hours work is real work at odd hours, so the quote reflects it, but we will explain what is driving the cost before we begin.
Should I install a new lock or just rekey after buying a home?
If your existing locks are in good shape and match each other, a rekey changes who has access without replacing hardware. If they are worn, mismatched or weak, new installation is the better investment. We will look at the doors and tell you which makes sense.
More locksmith help in Hacienda Heights
Lock Installation near Hacienda Heights
Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.
Last updated 2026-10-11.