A lock checklist for opening a new business

Start with the previous keys, not the new ones

When you take over a space, you inherit its history. Previous tenants, landlords, contractors, cleaners and agents may all have held keys, and nobody can say with certainty how many copies exist. The unglamorous truth is that the first lock job in a new business is usually to make the old keys useless, so that the only people who can enter are the people you have chosen.

Ask your landlord or property manager what is expected. Some leases allow tenants to rekey the space, some require approval, and some require that a copy of the new key go to the landlord. Get the answer in writing before you schedule work. In a shared building or plaza, find out whether common doors are managed by someone else.

Then walk the space and make a list of every door and lock, inside and out. Count the main entrance, rear door, loading door, storeroom, office, restroom, cash room, utility closet and any gates or shutters. Add cabinets, display cases and filing furniture with their own locks. This list is the foundation of everything else in this guide.

Take photographs as you go and label them by door. Note the brand on each lock if you can see it, the type of door, the condition of the frame and whether anything looks recently repaired. A clear record makes the conversation with a technician shorter and more useful, and it gives you a baseline to compare against later if a door starts to behave differently. It also helps if you ever need to describe the building to an insurer, a landlord or a new manager.

Think about the people who will be around the space before you open. Painters, electricians, fixture installers, sign makers and cleaners often need access during a build out. Decide who receives a temporary key or code, and plan to rekey or change codes once the work is done. Many owners forget that the contractors who built the shop still hold working keys long after the ribbon is cut.

The front door: welcoming and secure

The front door of a shop has two jobs that pull in different directions. It should be easy and welcoming for customers during business hours, and it should be strong when the shop is closed. Many storefronts use glass doors with a lock built into a narrow metal frame, which presents particular challenges. Our page on storefront and glass door locks explains the options.

Ask a technician to look at the condition of the lock, the door and the frame. A worn cylinder, a loose strike, a sagging door or a weak hinge side can reduce the value of an otherwise sound lock. Check how the door closes and latches, and watch it from the street side as well, because customers judge a shop by its entrance. A door that hangs crooked or scrapes its frame sends a quiet message, and it often signals a hinge problem that will eventually affect the lock. If it needs a shove to catch, the problem may lie in alignment, not the lock itself.

Consider how staff open and close the shop each day. A lock that is awkward to use will be left unlocked sooner or later. Choose hardware that matches the routine: a key that turns smoothly, a deadbolt that throws fully and a door that does not slam. For the bigger picture, see glass door and storefront security ideas.

Do not overlook the hinges and the threshold. A door with exposed hinge pins or a wide gap at the latch side is weaker than its lock suggests. Ask the technician to point out anything about the door itself that deserves attention. Sometimes a small adjustment, such as a longer strike plate screw or a corrected alignment, adds real strength for very little effort, and it keeps the door closing smoothly for customers every day.

Also decide early whether the front door will have a key cylinder on both sides. A cylinder that needs a key from inside can slow staff leaving in an emergency, and may conflict with what your authority expects. Ask your city or fire office, and ask the technician which arrangement fits the answer you receive.

The back door and loading area

The back door is where many owners are least careful and where the most care is often needed. It is out of sight, used by staff and deliveries, and often propped open on warm days. Treat it as a primary entrance, not a secondary one. It deserves a good quality lock, a solid door and a frame that has been checked.

Think about visibility. A back door that cannot be seen from the street or from inside the shop deserves extra attention. Good lighting, a clear sightline and a door that closes by itself all help. If your back door is also an exit route, speak to your city or fire office about what hardware is expected. Our guide on exit door hardware questions lists what to ask.

For deliveries, decide how the door will be used. Will staff open it from inside when a delivery arrives, or will a trusted vendor have a key or a code? Avoid leaving it unlatched. A simple routine, such as opening, receiving the delivery and relocking, prevents most problems.

Be careful about who knows the code or holds the key to the back door. Delivery drivers, vendors and temporary workers come and go, and a code shared once tends to be shared again. If you use a keypad, change the code on a regular schedule and whenever someone with access leaves. If you use a key, keep a list of holders and collect keys from people who no longer need them.

• Use a solid door with a frame in good condition.
• Keep the area lit and visible where possible.
• Close and lock the door after every delivery.
• Never prop an exit door open as a habit.
• Ask your city or fire office what exit hardware is expected.

Storerooms, offices and cash areas

Inside the shop, not every door needs the same level of control. A customer restroom, a staff break room, a storeroom with stock and an office with records all have different needs. Decide which spaces are public, which are for staff only and which are for managers or owners alone. Then match each lock to its role. It helps to draw the floor plan on paper and shade the public areas in one color and the staff areas in another, so the boundary between them is obvious to anyone who looks at it. Wherever the shading changes, there is usually a door that deserves a lock.

A storeroom with valuable stock or a cash area may need a stronger lock and a separate key that fewer people hold. An office with records may need a lock that can be changed when someone leaves. A utility closet may only need a basic lock to keep customers out. Matching the strength of the lock to the value behind it keeps costs sensible and security meaningful.

This is where a master key system can help. A system lets a manager's key open many doors while staff keys open only theirs. Our page on master key systems and the comparison of master key versus keyed alike explain the idea. Plan the structure on paper before the keys are cut.

If you also keep cabinets, display cases or filing furniture locked, treat them as part of the same plan. A lost cabinet key is a small nuisance, but a cabinet that holds payroll files or customer records is a larger concern. Ask a technician about the cabinet and filing lock options available, and decide who will hold the keys. Small locks deserve the same attention as large ones when the contents matter.

Key control from the first day

Key control is a habit, not a product. It means knowing who has each key, when it was issued and what happens when someone leaves. For a small shop with three employees, that may be a simple notebook. For a larger business, it may be a log, a locked key cabinet and a clear policy. What matters is that it exists.

Number your keys, or record them by door and holder. Avoid marking a key with the address of the business. Keep spare keys in a secure place, not a drawer that everyone uses. When someone leaves, collect their keys at the same time as their uniform or badge. Our guide on business key control policy explains how to set this up.

Be careful about who may copy keys. Some keys can be duplicated at any hardware counter, while restricted keys need authorization. A locksmith can describe the difference between common and restricted keys, and it is worth considering a restricted system for the doors that matter most.

Electronic options: keypads, cards and fobs

Many new businesses consider keypad or card access, because it removes the need to track metal keys and lets the owner change who can enter without changing the lock. A code can be changed in moments. A card can be cancelled when it is lost. These are practical advantages, particularly for businesses with staff turnover.

Electronic systems have their own needs: power, batteries, software and someone who understands them. Ask what happens during a power failure or a dead battery. Ask who manages the codes and how often they are changed. Our comparison of key card, key fob and keypad access helps you weigh the choices, and a technician can explain installation for your doors.

Do not assume that electronic is always better. A mechanical lock does not need batteries or software. Many businesses use a combination: mechanical locks on the most critical doors and electronic access where convenience matters. If power is lost during a storm, a battery backed lock may keep working, while a purely electric strike may not, and a lock that fails closed can strand staff while one that fails open can leave the shop exposed. Ask the technician how each option behaves, and choose with that in mind. Think about the environment, too. Humidity and salt air near the coast can affect hardware, so ask about materials that hold up.

Windows, shutters, gates and other openings

A shop has more openings than doors. Windows, roll up shutters, security gates, service hatches and vents all need thought. Walk around the outside and imagine each opening as an entry point. Check whether the glass is protected, whether the shutters lock and whether the gates close properly.

In Miami Dade, hurricane season adds another layer. Shutters, storm panels and reinforced doors serve a dual purpose of protection against weather and against intruders. Our guide on hurricane season lock and door checks gives a seasonal routine, and it helps to test all locks before the season begins.

If your shop has a gate or padlock, choose them with care. A weak padlock on a strong gate is a wasted effort. Look for a hardened shackle, a solid body and a rating that suits the job, and ask a technician which padlock types suit a humid, salty climate. We cover this in more detail on our padlock and gate pages.

Opening and closing routines

Write down a simple opening and closing routine for staff. At closing: walk the space, check back doors, lock the storeroom, turn off equipment, set any alarm and lock the front. At opening: unlock in a set order, check that nothing has been disturbed and report anything unusual to the manager before customers arrive.

Put the routine on a card near the door. Teach it to each new employee, and test it yourself. A routine that lives only in the owner's head fails the first day the owner is away. Include what to do if a key is lost or a lock sticks: who to call, and who decides.

Think about who should have the master key and who should have the alarm code. Fewer people is usually better. If an emergency happens, you want to know exactly who can enter and who cannot. Keep a list of key holders somewhere safe and update it whenever the team changes.

Many Miami Dade businesses have staff and customers who speak Spanish or other languages, so consider posting the routine in the languages your team reads most comfortably. A routine that everyone understands is one that is followed. Walk new employees through it in person on their first day, and ask them to repeat it back before they handle keys alone.

Preparing for the locksmith visit

When you call Home Advisor Locksmith, a real person answers. Describe your business type, the number of doors and what you want to achieve. Mention whether you are the owner or a tenant, and whether your landlord needs to approve changes. The price is explained before the truck rolls, so you can plan and compare.

The technician comes to you, looks at the doors, and explains the options in plain language. Have your list of doors ready, along with any notes from the landlord. Be ready to show that you may authorize the work, such as a lease, an ID and a business document. This protects you and the property.

At the end of the visit, the work is checked with you. Test every key at every door. Confirm which keys open what. Make a written record of the doors rekeyed or replaced. Our overview of commercial locksmith services and the lock security assessment describe how a larger walkthrough works.

Ongoing care once the doors are open

A lock is not a one time purchase. Over time hinges loosen, closers drift and cylinders collect dust and moisture. Add lock care to your regular maintenance. Our lock maintenance calendar shows a simple routine, and salt air and lock corrosion explains why coastal shops should be extra attentive.

Check your keys every few months. Who still holds one? Who has left? Has any key been lost? A short audit prevents the slow build up of unknown copies. When the business grows, return to your list of doors and add the new ones.

Finally, be ready to adapt. A shop that begins with three employees may become a team of fifteen, and the key plan that suited the first group may not suit the second. Keep the system simple enough to follow and flexible enough to change, and your doors will keep working for the business rather than against it.