Lock Installation in San Marino, CA

What does lock installation actually involve?

A new lock sounds like a simple swap, and sometimes it is. But a lock that is bolted onto a door is not the same as a lock that is installed. Installation means the right lock for the door, the right preparation of the door, correct alignment with the frame and strike, and a final check that the key turns without effort and the latch seats fully every time. Most of the lock failures we see later come from a good lock that was fitted badly, not a bad lock.

This page covers new lock installation in San Marino: fitting a lock where there was none, replacing hardware that has reached the end of its life, upgrading to a more secure model, or fitting a different style of lock because the door or the household has changed. If your situation is closer to changing the internal pins on locks you already have, that is a different job and we explain it on our lock rekey page.

We install door locks for homes and for small businesses. In San Marino the work leans heavily toward residential lock installation on older single-family houses, with a smaller share of commercial lock installation for street-level shops. Both get the same approach: look at the door first, then choose the hardware.

Which lock fits which door?

Choosing a lock starts with the door, not the catalog. Thickness, material, existing bore holes, the way the door swings, and how much wear the frame has taken all decide what can be fitted cleanly. Here is how the common categories break down.

• Front door lock installation: usually a deadbolt paired with a handle set or knob. This is the lock your household and visitors use daily, so smooth operation matters as much as strength.
• Deadbolts: a separate bolt that throws deep into the frame. If a deadbolt is the main thing you are after, our deadbolt installation page goes into the details.
• Mortise lock installation: the lock body sits inside a pocket cut into the edge of the door. Common on older homes and some commercial doors. It needs specific tools and patience.
• Lever lock installation: lever handles instead of round knobs. Easier on hands and often required or preferred for accessibility. They are common on interior doors and commercial entrances.
• Security lock installation: higher-grade cylinders and hardware designed to resist picking, drilling and forced entry. See our high-security locks page for what that category covers.
• Electronic and keypad locks: fitted on the same doors, with extra attention to battery access and door alignment. Those are covered separately on the smart lock installation page.

What should you know about mortise lock installation on older homes?

San Marino is almost entirely single-family homes, built largely in the 1920s and 1930s in Spanish Colonial Revival, Tudor, Monterey and other period styles, on large lots. Many of those houses still carry their original mortise locksets and period door hardware. That matters for installation, because mortise hardware is not a drop-in item. The pocket in the door edge, the spindle position, the backset and the faceplate size all have to match, or the door has to be modified to accept something new.

When someone in an older San Marino house asks for a new lock, we first look at whether the original mortise lock is worth keeping. Sometimes the answer is yes: the body is sound, the trim is original, and the right move is to keep what is there and change only the cylinder or the strike. Other times the lock body is worn out or damaged, and a new mortise lock is the better answer. Either way, the decision is made at the door, with the hardware in front of us, not over the phone from a generic list.

If a mortise lock is installed in a door that was never cut for one, the work is heavier. The door has to be mortised carefully so the wood is not weakened, especially on solid period doors you do not want to damage. We take that seriously because a door like that is part of the house, not just a barrier.

Heat is a factor too. San Marino is an inland San Gabriel Valley location with hot, dry summers, and that heat can swell wood doors and throw older mortise hardware out of alignment. A lock that worked in February can bind in August. When we install, we account for how the door moves through the seasons, and we check clearances rather than fitting everything dead tight. The same logic applies if you are weighing repair versus a swap; our lock replacement page explains how we decide between the two.

How do we install a new lock, step by step?

Every installation is a little different, but the sequence is consistent. This is what happens when we come to your door.

1. We talk through what you want the lock to do: who uses the door, whether you want keyed entry from outside only or both sides, and whether you want the lock keyed to match other doors.
2. We inspect the door and frame: thickness, material, existing bores, condition of the edge, strike plate, and how the door sits when closed.
3. We recommend hardware that suits that door and your goals, and we explain the tradeoffs plainly, including when a lighter-cost option is perfectly adequate.
4. We prepare the door. That can mean enlarging or correcting bores, cutting or adjusting a mortise pocket, or filling and reinforcing old damaged holes so the new lock has solid wood to bite into.
5. We mount the lock, set the latch and bolt, and fit the strike so the bolt throws into solid frame material with proper depth.
6. We test the lock many times with the door open and closed, check for binding as the door swings, and confirm that every key works smoothly.
7. We hand over the keys, show you how any adjustable parts work, and tidy up before we leave.

What affects the cost of lock installation?

We do not quote numbers on a web page because the real figure depends on the door in front of us. Here is what actually moves the cost, so you can see why two installs that sound alike can differ.

• The lock itself: a standard residential set, a high-security cylinder, a mortise body and an electronic lock sit in very different cost ranges.
• The number of locks: several doors keyed alike means more hardware and more labor, though it also spares you a pile of different keys.
• Door preparation: a door that already has the right bores is quicker than one that needs new holes, patching or mortise work.
• Door condition: warped, swollen or damaged doors need extra correction before any lock will work well on them.
• Hardware compatibility: finishes, trim style and period appearance on historic homes can limit what is suitable and may mean sourcing specific parts.
• Time and place: an evening or overnight call is different from a scheduled visit, and travel to your location is part of the picture.
• Whether other work is bundled in: if a rekey, repair or gate lock is handled during the same visit, the overall visit can be more economical than separate trips.

What does lock installation look like around San Marino?

San Marino is a small city with one ZIP code, 91108, and the jobs here follow the shape of the housing. Around the estate streets near Lacy Park and the Huntington Library area, the lots are large and the homes are period revival houses with original entry doors. A typical request there is a new front door lock installation that suits a heavy wood door, sometimes with the original mortise hardware left in place and a modern deadbolt added elsewhere on the door for extra strength.

Along the Huntington Drive corridor, many properties sit on large fenced lots with side doors and gates. New lock installation on a side door or a pedestrian gate is a regular scenario: the door gets less attention than the front, but it is often the easier way in. For gate hardware that is damaged rather than new, see our gate lock repair page.

Another common local scenario is a sale. Full-house rekeys after home sales near San Marino High School are typical, and a buyer sometimes goes a step further and decides that certain doors need new lock hardware altogether, perhaps because the existing locks are old, mismatched or worn. In that case, installation is where the work lands, and we can key the new locks to a single key so the household carries fewer keys.

In the Mission Street business district, the demand is storefront lock installation for small shops. Commercial doors have their own hardware requirements, such as frame types, rim or mortise cylinders and sometimes exit hardware, and we plan the work so it fits the door and the way the business operates.

The Oak Knoll border area near Pasadena and the El Molino Viejo (Old Mill) area have the same mix of period homes and mature properties, where the existing door and hardware tell us what is realistic. San Marino sits about 22 miles from our Westwood storefront, and our mobile vans come to you with the tools needed for on-site fitting, including mortise work, so most installations are completed at your door.

Residential versus commercial installation: what changes?

The core work is the same, but the priorities shift.

At a house, the priorities are appearance, daily convenience and security against forced entry. Homeowners often want finishes that suit the style of the house, particularly in a city where period character is part of the appeal. We try to respect that, using hardware that looks right on the door rather than something that clashes.

At a business, the priorities are durability, ease for staff and customers, and meeting any requirements for how the door must operate. Commercial lock installation may involve heavier-duty hardware, keyed-alike or master-keyed arrangements, or hardware that works with a door closer or exit device. Our commercial door hardware page covers that side of the work in more depth.

If you run a shop on Mission Street and the door also needs ongoing attention, tell us when you call. We would rather plan the installation around how you use the door than treat it as a one-off swap.

Why call Wilshire Lock & Key for installation?

There are plenty of ways to get a lock installed. Here is what we offer, stated plainly.

• We have been in business since 1987. That is a lot of doors, including a lot of older hardware that newer technicians have rarely handled.
• We have a real storefront at 10740 Wilshire Blvd in Westwood and mobile service vans. You are not calling a lead-generation site that passes you around.
• We are one company. There is no dispatch middleman reselling your job to whoever is nearest, so the person you speak with is working for the same business that arrives at your door.
• David, the owner and lead technician, oversees the work. If a job needs a decision about whether to keep original hardware or replace it, that decision is made by someone who has done this for years.
• Our phone is answered 24 hours a day, 7 days a week, year-round at (213) 577-1366. If a lock fails at night or a door has been damaged, you can call right away and we will tell you what is realistic.
• We explain the options honestly. If a lighter-cost option does the job, we say so. If a door needs more than a lock to be secure, we say that too.

What should you ask any locksmith before installation?

California requires locksmith companies to hold a BSIS LCO license, issued through the Bureau of Security and Investigative Services. Whoever you hire, ask for their license information and check that it is current. That is good advice for any trade, and it is especially important when someone is about to install the lock that protects your home.

A few other questions are worth asking.

Ask what lock they plan to fit and why it suits your particular door. Ask whether the door will need any modification and what that involves. Ask how many keys come with the lock and whether additional keys can be cut. Ask whether the work will include testing across the full swing of the door. A good locksmith answers all of that without hesitation.

Be wary of anyone who quotes a firm figure for a job they have not seen, or who suggests drilling and replacing something that could be fixed. If your real need is a swap rather than a new install, a conversation about the emergency locksmith options or a quick look at the lock may reveal a simpler route.

More locksmith help in San Marino

• Change Locks in San Marino
• Deadbolt Installation in San Marino
• Gate Lock Repair in San Marino
• High Security Locks in San Marino
• Key Duplication in San Marino
• Lock Rekey in San Marino
• All services in San Marino

Lock Installation near San Marino

• Pasadena
• South Pasadena
• San Gabriel
• Alhambra
• Temple City
• Arcadia