A door that needs a hard push to lock, a window handle that turns but does nothing, or a key that suddenly stops working—these are all problems I can help with.
I’m Stephen Fretwell from SF Locksmith. I provide mobile locksmith services across Branton and Doncaster, repairing door and window locks, changing locks, and improving home security.
You don’t always need a new door or window when a lock fails. I’ll check the fault, explain what needs doing and give you a price before starting work.
Call 01302 378067 or 07990 573857 for advice and a free, no-obligation quote.
Doors that are becoming difficult to lock
Have you started lifting the handle harder, pulling the door towards you or turning the key several times before it locks?
Check these changes before the door gets stuck or leaves you unable to secure your home. The problem may be worn locking parts, poor alignment, or a combination of both.
I repair uPVC and composite doors in Branton, including:
- Handles that will not lift or have gone loose.
- Keys that turn without locking the door.
- Failed gearboxes and multipoint locking mechanisms.
- Doors that catch against the frame.
- Doors stuck in the locked position.
The repair needs to address both the cause and the failed part. Where alignment contributes to the fault, I check and adjust the door so the repaired mechanism works properly.
uPVC window repairs in Branton
A window that closes but will not lock needs attention just as much as a faulty door.
I repair window locking mechanisms and replace worn or broken handles. I can also help with windows that are jammed shut, difficult to operate or no longer close correctly.
Often, the frame and glass are still perfectly usable. Replacing the faulty hardware can restore the window without the expense and disruption of fitting a completely new unit.
If you have several troublesome windows, mention them when booking so I can check them during the same visit.
Patio and French door lock repairs
Patio and French doors should close and lock without a struggle. If you have to force the handle or push the doors into position, something needs checking.
I work on sliding patio doors, French doors and tilt-and-slide doors, repairing locking faults and checking their operation. On French doors, the fault can involve either the main opening door or the locking parts on the second door.
I’ll assess the existing fittings and explain whether servicing, adjustment or replacement parts are needed.
Lock changes and security upgrades.
Moving into a property in Branton? Changing the locks gives you control over who has keys to your home.
I also replace locks after keys have been lost, when a cylinder becomes unreliable, or when you want to improve security.
My lock replacement service covers:
- Euro cylinders on uPVC and composite doors.
- Mortice locks on wooden doors.
- Yale-style night latches.
- Patio door and garage locks.
- Anti-snap security upgrades.
For suitable doors, I can supply and fit Ultion three-star anti-snap cylinders. I’ll check the cylinder size and existing handles before recommending an upgrade.
Help when you cannot get in or lock up.
If you are locked out or your door will not secure, call me and explain what has happened. I’ll confirm availability and let you know when I can attend.
My mobile workshop carries a wide range of locks, mechanisms and repair parts. This helps me complete many repairs during the first visit. If a particular part needs ordering, I’ll explain the next step.
Why choose SF Locksmith?
I have been working as a locksmith since 1999. My approach is straightforward: find the fault, explain the options and carry out the work properly.
- Experienced, accredited and DBS-checked locksmith.
- No call-out charge.
- Free, no-obligation quotes.
- Two-year guarantee on parts and labour.
- Repairs where practical, with honest advice about replacement.
- Direct contact with Stephen.
For locksmith help in Branton, call 01302 378067 or 07990 573857. You can also send a photo by WhatsApp so I can understand the problem before visiting.
A recent repair in Branton
I recently attended a property in Branton where a uPVC bedroom window had jammed shut because the locking mechanism had failed. I opened the window without difficulty and replaced the complete locking mechanism. I also serviced the hinges and checked that the window opened, closed and locked correctly. The repair includes a two-year parts and labour guarantee.

What our customer said
5 Star Review from Vanessa in Branton
Great service. Very friendly and fixed my UPVC window very quickly. Would highly recommend.