Just Moved In? The Ultimate Home Security Checklist for Your First 30 Days

Moving into a new home is exciting, but it comes with a security blind spot: you have no idea how many keys to your front door exist. Previous owners, tenants, agents, cleaners, tradespeople, dog walkers and relatives may all have had copies.

This checklist takes you through what to do and when, from day one to the end of your first month.

Day 1: Take control of the keys

Rekey or replace the external locks

This is the single most important step. Rekeying changes the inside of the lock so every old key stops working, while keeping the existing hardware. It's usually quick and cost-effective.

Choose replacement instead if:

• The locks are old, worn or poor quality
• They don't suit the doors
• You want to upgrade the standard of security

Tip: Ask about keying several external doors to the same key. One key for the front, back and side doors is more convenient and makes key control simpler.

Start a key register

Write down:

• Every key you have and which lock it opens
• Who else holds a key (a partner, family member or trusted neighbour)

A simple note on your phone is enough.

Week 1: Doors

Check every external door:

Sliding doors

Sliding doors are a common weak point. Check that:

• The lock engages fully
• The door can't be lifted off its track when locked
• A secondary lock or security bar is fitted

Security screen doors

If fitted, check that the lock works and the frame is firmly fixed.

Week 2: Windows

Windows are often overlooked in new homes, and window locks are frequently missing, broken or never used.

• Check every ground-floor and easy-to-reach window for a working lock
• Find the window lock keys, or plan to replace locks if the keys are missing
• Fit locks that still let the window open slightly for ventilation where needed
• Never block windows that are needed as a fire exit

Week 3: The forgotten entry points

Garage

• Does the internal door from the garage into the house lock?
• Is the garage door secure, and have the remote codes been changed?
• Are any spare remotes accounted for?

Side gates and sheds

• Lock side gates so access to the back of the house isn't easy
• Lock sheds, which often hold ladders and tools that could help someone break in

Letterbox and meter boxes

• Change letterbox locks if the previous occupant may have a key

Week 4: Habits and lighting

Hardware only works if it's used. Build simple routines:

• Lock doors even when you're home, especially back and side doors
• Keep keys away from the front door, where they can't be reached or seen
• Don't hide spare keys outside
• Use sensor lighting at entries and dark side paths
• Keep shrubs near doors and windows trimmed so entries are visible

If you're renting

Renters can still improve their security:

• Ask your property manager whether the locks were rekeyed between tenants
• Report broken locks or windows in writing
• Get written permission before changing or adding locks, and follow the rules in your lease and state tenancy laws
• Give a copy of any new key to the landlord if required

Your printable 30-day checklist

• Rekey or replace external locks
• Start a key register
• Check all external doors and strike plates
• Check and secure sliding doors
• Check every window lock
• Secure the garage and internal garage door
• Change garage remote codes
• Lock side gates and sheds
• Change letterbox locks
• Add sensor lighting at entries
• Set up a trusted spare-key arrangement

Frequently asked questions

Is rekeying as secure as new locks? Rekeying stops old keys from working. If the existing lock is good quality and in good condition, rekeying controls access just as well as a new lock of the same type.

How soon after moving should I rekey? Ideally within the first few days.

Can all my doors use one key? Often, yes, if the locks are compatible. A locksmith can check.

Make your new home feel like yours

Locksmith Of Brighton helps new homeowners and renters with rekeying, lock replacement and security upgrades. See our residential locksmith services or contact us to talk through your new home.