Handle won’t lift or feels loose
The handle is stiff, droops or no longer operates the locking points as expected.
Multipoint locks · Supplied & fitted
Door won’t lock properly? Handle difficult to lift? We assess the fault and supply and fit a suitable replacement for your door.
We supply and fit compatible mechanisms for uPVC, composite and timber doors across West London, Egham, Windsor and Staines-upon-Thames.

Common problems
Similar symptoms can have different causes. An assessment helps establish whether the problem is in the mechanism, cylinder, handles or door alignment.
The handle is stiff, droops or no longer operates the locking points as expected.
The key or locking points do not engage correctly, even though the door appears closed.
The door may be jammed shut, catching on the frame, or failing to lock smoothly.
Avoid forcing the key or handle. If the door cannot be secured, call to discuss availability.
Replacement options
Not every fault needs a complete new mechanism. We explain the options after checking compatibility and the condition of the existing parts.
A replacement locking strip and its associated locking points, selected to suit the existing door. Suitable when a complete mechanism replacement is required.
Supplied, fitted and tested.
Price confirmed after identifying the mechanism and required work.
Where a compatible replacement is available and the rest of the mechanism is serviceable, it may be possible to replace the central gearbox only.
Compatibility checked before fitting.
We confirm whether this option is suitable for your door.
Get a quote
Send your postcode, a short description of the problem and photos on WhatsApp. Let us know whether the door is open, locked shut or unable to lock.
Your quote depends on the part, access to the mechanism and any additional work needed. We confirm the final price before starting the agreed work.
No need to dismantle the lock or force the door open. Photos help with initial identification; a visit may still be needed.
Your questions
A lock fault does not automatically mean replacing the door. We assess the mechanism and door condition to explain whether a repair or lock replacement is suitable.
Sometimes. It depends on the fault, the condition of the remaining mechanism and whether a compatible gearbox is available. We check this before recommending a complete replacement.
Call and explain the problem. We can assess the access work required and discuss the next available visit. Any opening work is considered when preparing the quote.
Photos can help us identify the likely part and provide an initial quote. If access, compatibility or another fault cannot be confirmed remotely, we explain what needs checking on site before agreeing the final price.
Yes. BMS Locksmiths provides a supply-and-fit service. We identify a suitable part, install it and check that the door locks and unlocks correctly.
Local locksmith service
From Shepherd’s Bush and Hammersmith to Egham, Windsor and Staines-upon-Thames, we visit homes and businesses for emergency call-outs and scheduled appointments. Send your postcode so we can confirm availability and an estimated arrival time for your location.
Call for urgent help, or send photos to discuss a replacement.