Seventy answers to the questions neighbors actually ask about locks

Neighbors ask

How this library came to be

Every locksmith hears the same questions again and again. Should I rekey after buying a house? Why does my key stick? What is a transponder chip and why does my car need one? The answers are not secret, but they are scattered across product packages, forum arguments and half remembered advice from a cousin. We gathered them here, in one place, in plain language.

The guides are written as a neighbor would answer them, with a little patience and without jargon. They are not sales letters. Many of them tell you how to solve the problem yourself, or when waiting a day is perfectly fine. If a guide helps you avoid a call, we count that as a good result.

Seventy guides is a lot, so they are grouped into eight themes. Each theme has a short introduction and a list of its guides, each with a line telling you what it covers. Scan the headings, pick the theme that sounds like your situation, and read the one or two that fit.

Buying, moving and changing who has keys

Keys travel further than people expect. They sit in drawers, jackets, glove compartments and the pockets of people you once trusted. Moving into a new place, losing a wallet, or finding a key you cannot identify all raise the same underlying question: who can get in? These guides help you answer it.

Think of this theme as housekeeping for access. None of it is dramatic. Most of it comes down to counting keys, deciding what to change, and writing a few things down. The result is a household that knows exactly who holds a key to which door, and sleeps a little better for it.

If you want the service pages that go with this theme, rekeying your home and home lock service explain the work in more detail.

• Do I need to rekey after buying a house? Explains why a new owner cannot know who holds old keys and how a rekey settles it.
• Is it better to rekey or replace? Sets out when changing the inside of a lock is enough and when new hardware is the honest answer.
• How many keys should a household keep? Talks through spares, who needs one and where extras should live.
• What if my wallet with my house keys is gone? Walks through the sensible first steps when keys and identification vanish together.
• What do I do with a key that does not belong to me? Covers what to do when a stray key turns up in a drawer, a jacket or a yard.
• What should I do about locks after a break in? Describes how to think about doors, frames and keys once the shock has passed.

Calling a locksmith and getting ready

Part of getting good help is knowing how to ask for it. A person who can describe the problem clearly, and who has the right information on hand, gets a smoother visit. These four guides cover the basics: what to prepare, how to recognize a genuine professional, what to try before you call, and how to stay safe when a lockout happens after dark.

They pair naturally with the emergency help page, which looks at staying calm and giving the details that matter. Our phone line is coming soon, so for now the way to reach us is the request form. These guides help you fill it in well.

• What should I have ready when I call a locksmith? Lists the details and the proof of ownership that make a job go smoothly.
• How do I know a locksmith is the real thing? Describes the signs of a genuine professional and the habits worth asking about.
• What is a lockout and what should I try first? Shows the simple checks to make before anyone is called.
• Locked out at night, what is the safe thing to do? Focuses on safety, light and where to wait.

Car keys, fobs and ignitions

Cars are where the library goes deepest, because the questions are many and the technology has changed a great deal over the past few decades. A key is no longer a single piece of metal. It may hold a chip, a remote, a battery and a backup blade. Understanding what is inside makes decisions about spares and replacements far easier.

This theme also covers situations that sit around the key itself: buying a used car and wondering how many keys it should have, handing a spare to a teenager, borrowing a car and locking the keys in it, or dealing with a work vehicle that belongs to somebody else.

For the services behind these guides, see cars and trucks, locked out of your car, replacement car keys and key programming and fobs.

• How is a car opened without the key? Explains in general terms how a professional gets into a vehicle without damage.
• What is a transponder chip? Describes the small coded chip inside many car keys and why the engine cares about it.
• Do all car keys need programming? Sorts which keys are plain metal and which need electronics matched to the car.
• My key fob stopped working, now what? Offers a sensible order of checks, from the battery to the car itself.
• Can a key be made if I have no key at all? Answers the lost every key panic with how a new key is created from scratch.
• What is key code cutting? Explains how a key can be cut from a code instead of from a sample.
• What is a key blank? Describes the uncut metal a key starts as and why the right blank matters.
• Buying a used car, the extra key question. Raises what to ask a seller about spares before the deal is done.
• How many keys come with a used car and which ones matter? Looks at which keys and fobs are worth having and which are not.
• Teen drivers and spare keys. Considers who should hold a spare and how to avoid duplicate key drama.
• When a car will not start because of the key. Explains how a worn or mismatched key can keep an engine silent.
• A key stuck in the ignition. Describes the common reasons a key will not come out and what not to force.
• Remote start and key questions. Looks at how remote start systems and keys relate to one another.
• What to do when locked out of a borrowed car. Covers the awkward case of a car that belongs to a friend or relative.
• A work vehicle lockout, who to tell. Explains who needs to know and what to prepare when a company vehicle is shut.

Choosing and judging home locks

Walk around any house and you will find a collection of locks bought at different times for different reasons. Some are solid, some are decorative, and some are quietly worn. These guides help you judge what you have, decide what is missing, and understand the labels and marketing claims you will meet when you shop.

There are also guides for specific households: families with small children, an older relative living alone, and houses with older windows or sliding doors. Security is not one size fits all. A lock that suits a busy family may not suit an older person who wants simplicity.

The matching service pages are new lock installation and home lock service, and for lockouts, locked out of your home.

• Should every exterior door have a deadbolt? Weighs the case for a deadbolt on each outside door and the doors that need one most.
• What does lock grade mean? Translates the grade labels on lock packaging into everyday terms.
• What is a smart lock and who needs one? Looks at keypads and app controlled locks and what they do well.
• Can smart locks be rekeyed? Answers a common question about keyed backups on electronic locks.
• How do I judge whether my locks are good enough? Offers a calm walk around the house with a few things to look for.
• Do expensive locks make a difference? Separates what extra money buys in a lock from what it does not.
• How do I judge how long a lock will last? Explains the wear signs that suggest a lock is nearing the end.
• What makes a good strike plate? Describes the small plate on the frame that often matters more than the lock.
• Metal, wood or fiberglass doors, and how locks fit them. Looks at how door material affects what hardware fits and how it holds.
• Do I need a locksmith to change a door handle? Helps you decide what is a weekend job and what deserves a professional.
• Lock choices for an older relative living alone. Considers ease of use, spare keys and peace of mind for someone you care about.
• How do I childproof exterior doors? Talks about keeping small children in without making it hard for adults to get out.
• Window lock questions for older houses. Looks at latches, sash locks and the quirks of older frames.
• Sliding door security questions. Explains the weak points of sliding doors and sensible ways to firm them up.

Wear, weather and things that stick

Locks wear out slowly and then suddenly. A key that was a little stiff for a year becomes a key that will not turn at all. This theme helps you notice the early signs, understand what weather and seasons do to hardware, choose the right lubricant, and handle the unpleasant moments such as a stuck key or a lock that breaks mid turn.

Doors are part of the story. A door that sags drags on its latch, and a swollen frame makes a fine lock behave badly. Several of these guides look at the door as a whole, because fixing the lock alone will not cure a problem that starts in the frame.

If you want help rather than reading, lock repair and adjustment describes what a technician checks and fixes.

• How do I tell if my locks are worn out? Lists the signs of a tired lock, from sticking keys to loose handles.
• Why does my lock turn so hard? Walks through dirt, dryness, misalignment and wear as likely causes.
• What do I do when a lock breaks mid turn? Explains what to do and what to avoid when a lock fails with the key inside.
• Can a door that will not close be fixed? Looks at swollen frames, loose hinges and latches that miss their strike.
• What if the lock on my garage entry door fails? Covers the practical steps when the door between garage and house stops locking.
• Do weather and seasons affect locks? Describes how heat, cold and damp change the way locks and doors behave.
• What lubricant belongs in a lock? Explains which products help a lock and which gum it up.
• How do I deal with a stuck key? Offers gentle steps before anything gets bent or broken.
• Why do doors sag and what does it do to locks? Shows how a sagging door drags on the latch and wears the hardware.

Renters, landlords and shared housing

Rented and shared homes raise their own questions about keys. Who is allowed to change a lock? Who pays? How do you keep track of keys when guests, cleaners and managers all need them? Rules and leases vary, so these guides focus on the questions to ask and the routines that work, instead of claiming one answer is right everywhere.

Vacation homes and cabins sit in this theme too, since the issues are alike: many people, long gaps and a strong need to know exactly who has access. If you manage a place that people come and go from, these guides will save you headaches.

• How should keys be handled when a tenant moves out? Covers collecting keys, counting them and deciding what changes before the next tenant.
• What should renters ask a landlord about lock changes? Lists the questions to raise, since rules and leases vary.
• How do I manage keys at a rental with many guests? Offers ways to hand over access without losing track of keys.
• Apartment complexes, locks and the resident role. Explains what residents usually handle and what the property handles.
• HOA questions about exterior door hardware. Suggests what to ask an association before changing visible hardware.
• College students and shared housing keys. Looks at roommates, lost keys and moving out in shared homes.
• Property managers and the rekey at turnover workflow. Describes a tidy routine for rekeying between occupants.
• Managing locks for vacation homes. Considers owners, guests and cleaners who all need access at different times.
• Seasonal closing and reopening of a cabin, lock questions. Covers locks and keys when a place sits empty for part of the year.
• Lockboxes and showings, general questions. Talks through how lockboxes work in general and what to ask about them.

Offices, shops and business doors

A business door has jobs a house door does not. It has to be easy to use all day, secure all night, and safe in an emergency. The guides here explain the common pieces of commercial hardware in plain terms, along with the human side of access: who holds keys, what happens when someone leaves, and how to keep a simple record.

Small shops will find the most practical advice here, including the keypad versus key question. For service details, see business lock service and door hardware for business.

• A new business owner lock checklist. Gives a first walk through the doors, keys and routines of a new space.
• What is a master key system and do I need one? Explains how one key can open many doors and when that is worth having.
• How should an office handle keys when an employee leaves? Describes a calm routine for taking back access.
• What is a key control policy? Explains the simple written rules that keep track of who holds what.
• What are push bars and panic hardware? Explains the exit hardware that lets a crowd leave safely through a locked door.
• What is a door closer and why does it matter? Shows how closers work and why a door that stays open defeats its lock.
• What is an electric strike? Explains the electric frame part that lets a door release without a key.
• Keypad or key for a small shop? Weighs the trade offs of codes against keys for a small team.
• Cabinet and file locks, a few questions. Looks at the small locks on drawers, cabinets and file units.

Mailboxes, sheds, gates and other small locks

Not every lock is on a front door. The small ones, on mailboxes, sheds, garages and country gates, tend to be the ones people forget until something goes wrong. These three guides cover the questions that come up most often, especially for rural properties where a gate may be the first line of defense.

• Mailbox lock questions. Covers the small lock many people forget until the key is gone.
• Shed and garage padlock questions. Looks at choosing and using padlocks for outbuildings.
• Gate lock questions for country driveways. Considers gates, chains and latches on long rural drives.

Where to go next

If you read a guide and still need hands on the problem, the services page lists all twelve services and the service areas page shows the seventeen communities we serve. The about page explains how we work, and the contact page has the request form while the phone line is coming soon.

Not every question has an answer yet. If yours is missing, tell us in the request form. We keep adding to the library based on what people ask, and a good question from one neighbor often helps the next dozen.

Good to know

Common questions