Should you rekey or replace when you change locks?
When people say they want to change the locks, they could mean two different jobs, and the right one depends on the hardware already on your doors. Rekeying keeps your existing lock bodies and changes the inside of the cylinder, so the old keys stop working and a new key takes over. Replacing removes the lock and puts a different one in its place. Either way, you end up with the result you actually care about: the keys other people are carrying no longer open your door.
You don't have to decide before you call. Tell us what is on the doors, and we look at each one in person. If the hardware is sound, matches in finish, and turns and latches smoothly, rekeying is usually the more economical route and keeps the look of the house intact. If a lock is worn, loose, mismatched, or built to a low standard, replacing it is the honest answer, and we'll say so before we start. For the detail on each job, see our pages on rekeying locks in Porter Ranch and lock replacement.
This page is about the decision and the whole-house job: walking your doors, choosing the right fix for each one, and leaving you with keys you can trust. Think of it as the starting point, and the pages above as the specifics.
Why change locks after buying a house or moving in?
Nobody can tell you how many keys to a house exist. Past owners, their relatives, agents, contractors, cleaners, and the neighbor who watered the plants may each have had one at some point. Most of those people mean no harm. The point of changing locks after buying a house is that you stop having to wonder.
In a newer Porter Ranch home the question is a little different. During construction and the handoff from a builder, a number of people can have had access to the house, and the keypad or smart lock that came with it may still be running on a setup code or a code someone else knows. Resetting those credentials is part of changing locks here, not an afterthought. If your home comes from one of the earlier phases of the community, the hardware may have been through a long run of use, and we check its condition instead of assuming it is fine.
The same logic applies to any move, not just a purchase. If you are a tenant renting a house, a new landlord, or someone who has had a breakup or a roommate leave, a lock change is the straightforward way to close the loop. Landlords with several units can also look at our page on locksmith services for landlords.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366How we change locks, step by step
Here is how a typical lock change goes when you call us. The order matters, because the most common mistake is deciding on hardware before anyone has looked at the doors.
- You call (213) 577-1366 and tell us what happened: new purchase, move-in, lost keys, or a general security reset. A real person answers, any hour of the day or night.
- We send a mobile van to your address. Our storefront is at 10740 Wilshire Blvd in Westwood, and the van brings the tools and hardware to your door so you are not taking anything anywhere.
- We walk every exterior door with you: front, garage-to-house, side, back, patio, and any other entry. We look at each lock's condition, finish, and how well the door and strike plate line up.
- We agree on the fix for each door before touching it. Some doors get rekeyed, some get new hardware, and some may be worth adding a deadbolt to. You hear the reasoning, and you decide.
- We do the work, then test every lock with the new keys, several times, with the door open and closed. A lock that only works when you lift the handle or lean on the door is not finished.
- If you have a keypad or smart lock, we reset the codes and remove any setup or old user codes, so only the people you choose can get in.
- We hand over the keys, talk through how many spares you want, and tell you what to do if a key goes missing later.
Rekey, replace, or move to a smart lock?
Here is the way we usually sort it out at the door. It is a guide, not a rulebook, and the lock in your hand can change the answer.
- Rekey when the existing locks are good quality, in good shape, and you like how they look. This is where many new-home closings end up.
- Replace when a lock is worn, wobbly, damaged, a mismatched set, or when you simply want a different style or a higher grade of hardware. See also our page on high-security locks if that is the goal.
- Add a deadbolt when a door only has a knob lock or the existing deadbolt is weak or missing. We cover that on our deadbolt installation page.
- Go smart when you want codes for family, house sitters, or a cleaner without handing out metal keys. Our smart lock installation page explains what is involved, including how it works with the keypads builders often install.
- Key every door alike when you want one key for the front, the garage entry, and the side door. This can be done as part of rekeying or replacing, and it is worth asking for.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366How much does it cost to change locks in Porter Ranch?
We don't quote numbers on a web page, because the honest answer depends on your doors, and a made-up figure helps no one. What we can do is explain what moves the cost up or down, so you know what you are paying for when the quote comes.
The biggest factor is which route you take. Rekeying a lock you already own generally costs less than buying and fitting a new one, which is why it is often the lighter-cost option when the hardware is healthy. Past that, the main drivers are:
- How many locks need work. A larger two-story home with several entries will involve more cylinders than a small one.
- The hardware itself: a basic knob and deadbolt set is different from a high-security deadbolt, a handleset, or a smart lock with a keypad.
- Whether doors need extra work, such as a misaligned strike plate, a poorly drilled bore, or a swollen frame that keeps the latch from catching.
- Whether you want keyed-alike sets, extra keys, or a new key system for the whole house.
- Timing. Calling in the middle of the night or on a holiday is not the same job as a scheduled visit during the day, and we will tell you that up front.
- Travel. Porter Ranch is about 25 miles from our Westwood base, and that is taken into account in the quote.
What to know about changing locks in Porter Ranch
Porter Ranch is a master-planned community that was built in phases starting in the late 1980s, with new Toll Brothers construction still adding homes. Most of what we see is larger two-story single-family housing, with very little apartment stock. That shapes the job. A home in Porter Ranch Estates, Renaissance, Canyon Oaks, or Avila usually has a number of exterior doors to count, and a typical lock change here means going through every one of them, not just the front door.
Many of these villages are gated or guard-gated, including Porter Ranch Estates, Renaissance, Westcliffe, Hillcrest, Canyon Oaks, and Avila. That is worth being clear about: changing the locks on your own house is separate from the community gate. The gate and any pedestrian-gate hardware belong to the HOA, and that is a different type of work, covered on our gate lock repair page. We change what is on your doors. Neighborhoods like the Bluffs at Bella Vista, the Vineyards district, and the homes along the Sesnon Boulevard corridor are not all set up the same way, so we start with the doors in front of us rather than a template.
One of the most common Porter Ranch calls for us is rekeying after a new-home closing or builder handoff in 91326. Newer homes commonly arrive with builder-installed keypads and smart locks, so the job often includes resetting those codes along with the keyed deadbolts, and making sure the garage-to-house door matches the rest.
Then there is the weather. The community sits on the slopes of the Santa Susana Mountains and takes strong Santa Ana winds and hot, dry summers. Wind-driven dust can get into exterior keypads, gate latches, and weather seals on exposed hillside entries. When we change locks on a garage or side entry that takes the brunt of it, we pay attention to how the hardware will hold up, and to whether the door still seals and latches cleanly. If you are choosing between a keypad and a plain keyed deadbolt for an exposed door, we will tell you what we see and let you pick.
If your HOA has rules about exterior door hardware or finishes, check them before choosing new locks. We can match finishes where it matters, and rekeying leaves the look of the door untouched, which keeps this question simple.
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?
We have been in business since 1987, and we serve 140 cities across Los Angeles and Ventura counties, so a house in Porter Ranch is not a stretch for us. David, our owner and lead technician, oversees the work. You are dealing with one company, not a dispatch service that sells your job to whoever picks it up.
We have a real storefront at 10740 Wilshire Blvd in Westwood, plus mobile service vans, so your lock change comes to your door with the parts and tools on board. Our mobile locksmith service page explains how that works. The phone, (213) 577-1366, is answered 24 hours a day, seven days a week, year-round.
One more practical point. California requires locksmith companies to hold a BSIS LCO license. Ask any locksmith you hire, us included, for their license number, and check that it is real. A legitimate company will not mind the question.
Before we arrive, and what to do afterward
A little preparation helps the visit go smoothly. None of it is complicated, and if you can't do any of it, we still come out and sort it on the spot.
If you are locked out of the house you just bought, that is a different first step. Our house lockout page covers getting you in, and we can change the locks in the same visit.
- Count your exterior doors, including the garage-to-house door and any side or patio entries, so we can plan the job.
- Gather every key you currently have, even ones you do not recognize. We can tell you what they belong to.
- Note whether any doors stick, drag, or do not latch, and tell us. We would rather fix that than lock in a problem.
- If there is a keypad or smart lock, find the app, account, or original paperwork if you have it.
- After the work, decide who really needs a key. For spares, our key duplication page explains what to ask for, and why copies of copies are worth avoiding.
Frequently asked questions
Should I change the locks as soon as I buy a house in Porter Ranch?
Yes, do it before or right after you move in. You cannot know who still holds a key, and builders, agents, and previous owners may all have had one. Call (213) 577-1366 and we can plan it around your closing.
Is it better to rekey or replace locks on a newer home?
If the builder-installed locks are in good condition and you like them, rekeying is often the more economical route and gives you new keys that old ones will not match. If a lock is damaged, mismatched, or not the grade you want, we replace it. We check each door in person and tell you which it is.
Can you change my locks the day I close on the house?
Our phone is answered around the clock, every day, so you can call whenever you get your keys. Scheduling depends on what is going on that day and how far the van is coming from, so call (213) 577-1366 and we will tell you what we can do.
Will you reset a builder-installed keypad or smart lock?
Yes. Newer Porter Ranch homes often come with builder-installed keypads or smart locks, and the old setup codes should be removed. We reset the codes, clear old users, and set up the ones you want. If you want a different lock altogether, we can install it.
How much does it cost to change locks?
It depends on how many locks you have, whether you rekey or replace, the grade of hardware, whether doors need adjusting, the time of day, and travel. We explain the factors and give you a clear quote at the door before any work starts.
Do I need HOA approval to change my door locks?
It depends on your community's rules. Some HOAs have rules about exterior hardware, finishes, or visible changes. Rekeying does not change how the door looks, which avoids the question. If you are replacing hardware on a visible door, check with your HOA first. Community gates are managed by the HOA, not by us on your front door.
Can every door in my house use one key?
Usually, yes. We can rekey or set up new locks so the front, garage-to-house, side, and back doors all work with the same key. Some specialty locks may be better kept separate, and we will tell you if that applies to yours.
Do Santa Ana winds and dust affect door locks?
They can. Wind-driven dust can build up in exterior keypads, latches, and weather seals, especially on exposed hillside entries and garage or side doors. We look at how a door is exposed when we recommend hardware, and we can service or replace parts that are wearing from it.
How do I know the locksmith I hire is legitimate?
Ask for their California BSIS LCO license number and confirm it. Look for a real business address and a company that gives you a clear explanation of the work before starting. Be careful with anyone who will not explain the job or will not name the company when answering the phone.
More locksmith help in Porter Ranch
Change Locks near Porter Ranch
Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.
Last updated 2026-10-11.
