Decide which access needs to change
Count the locks on each entrance rather than just the doors. A front door may have a night latch and a separate mortice lock, each with its own key. Explain which keys are missing and whether they also operate another door. A private flat lock and a shared building entrance need separate decisions and the right authority.
Match the replacement to the door
We distinguish between a cylinder change, a replacement lock case and work on a full multipoint mechanism. The existing fitting, door thickness, handles and door condition guide the choice. Tell us about sticking, rubbing or difficulty lifting the handle so the underlying fault is considered too. Have any written insurer or building requirements ready when we discuss the replacement.
Plan the keys as well as the fitting
We discuss the replacement hardware and the keys you need as part of the job. Tell us how many people require access and whether you want to explore compatible locks using one key. At handover, go through the operation from both sides and check the supplied key quantities. Keep the product details and any registration paperwork somewhere accessible.
Before you call
Do I need a whole new door when I change the lock?
Not automatically. Suitable replacement hardware may fit the existing door. Damage, an unsuitable previous fitting or a mechanism fault can change what is needed, so describe the door's condition when requesting a quote.
Can several doors use one key?
Some compatible locks can be supplied keyed alike. Ask about your particular door and lock combination before buying parts. Shared or restricted systems may require the system owner's involvement.
Will the replacement meet my home insurance requirements?
Have the insurer's exact wording available. Requirements depend on the policy and door arrangement; a product description alone does not establish compliance. Confirm the proposed specification with your insurer where necessary.