Jammed Lock
Jammed, stuck or seized lock? Quick unblocking without damage. Our locksmith arrives in 30 minutes and solves your problem without damage.
Fast intervention
Arrival in 30 minutes
The technician closest to your location is dispatched as a priority. No call center: you speak directly to the locksmith who will handle your job.
No damage in 95% of cases
Bypass, lock picking, decoding: our technicians master all three non-destructive opening methods. Cylinder drilling is only used as a last resort, with your prior approval.
Available 24/7
Dedicated on-call team from 9 PM. Same technicians, same tools, same rates. No nighttime subcontracting.
Free quote by phone
The price quoted by phone includes travel, labor, and standard parts. If a cylinder replacement proves necessary, the additional cost is communicated before any work begins.
Jammed Lock right now?
Don't stay locked out! Call us, we arrive in 30 minutes.
How does it work?
1. You call us
Briefly describe your situation. We give you a precise arrival time. Mention the cylinder brand and door type if you know them — it speeds up preparation.
2. We arrive quickly
Our locksmith arrives with all necessary equipment. They contact you 5 minutes before arrival to confirm the exact address.
3. Quote before intervention
We give you the exact price before starting. You approve, then we intervene. If the on-site diagnosis reveals a different issue, a revised quote is provided with no obligation.
4. Problem solved
Quick and clean intervention. You regain access to your home. The technician tests everything in front of you and provides an official invoice.
Our guarantees
Frequently asked questions
Why is my lock suddenly jammed?
Can you unjam my lock without replacing it?
How can I prevent a lock from jamming?
My lock often jams in winter, is this normal?
Jammed lock: identifying the cause before choosing a fix
The key goes in but will not turn. Or it turns freely without engaging the bolt. Sometimes it refuses to insert fully at all. A jammed lock can present in different ways, and each points to a different underlying problem. Before we touch any tools, we always take a moment to understand what is happening inside the mechanism. That initial diagnosis is what allows us to open the door without breaking anything and to carry out a lasting repair.
The main reasons a lock jams
Natural cylinder wear
A cylinder has a finite lifespan. After 8 to 12 years of daily use, the internal pins wear down, springs lose tension, and the mechanism starts to resist. The early warning signs are subtle: you need a slight wiggle to make the key turn, or you have to lift the door handle while locking. These signals deserve attention. Ignoring a fatigued lock is simply waiting for it to fail at the worst possible moment.
Temperature and humidity changes
Exterior doors made of wood or PVC shift with the seasons. In summer, wood absorbs moisture and swells. In winter, it contracts as the air dries out. This movement shifts the alignment between the bolt and the strike plate by a few millimetres — enough to stop the lock from operating. We see this most often in the older Brussels townhouses where solid timber frames react strongly to seasonal changes.
Dirt build-up and wrong lubrication
Dust, metal particles from normal wear, and residue from unsuitable lubricants accumulate inside the cylinder over the years. Many of our clients have used WD-40, thinking it helps. The problem is that WD-40 is a solvent-based degreaser, not a lasting lubricant. It dissolves grime temporarily but leaves a film that attracts more dust, making matters worse within months. The right product is a dry graphite or PTFE lubricant, applied once or twice a year.
An unnoticed break-in attempt
Occasionally, a lock jams for no apparent reason. On closer inspection, we find telltale signs of picking or bumping: micro-scratches around the keyway, displaced pins, a cylinder that has been slightly twisted. The burglar failed but damaged the mechanism in the process. If your lock suddenly seizes after years of working perfectly, it is worth having the cylinder inspected.
Repair or replace?
The answer depends entirely on the condition of the mechanism:
- Simple seizing — cleaning and proper lubrication are all that is needed. The cylinder returns to smooth operation. Minimal cost, immediate result.
- Door-to-strike misalignment — adjusting the strike plate or bolt resolves the issue. Sometimes a quick file on the strike plate restores the correct clearance.
- Worn or damaged cylinder — cylinder replacement is the most reliable solution. We carry Vachette, Mul-T-Lock, Bricard, and Wilka cylinders at various security levels, fitted on site in minutes.
- Faulty lock body — when the problem lies within the lock case itself (a broken spring, a warped connecting rod), the entire lock body needs replacing.
What to do while waiting for us
If your key goes in part way, do not force it. You risk snapping it inside the cylinder and turning a straightforward unblocking into a broken key extraction. If the key turns but the door stays shut, try gently pushing or pulling the door leaf while turning — this can compensate for slight misalignment and may get you inside in the meantime.
Lock seized, stiff, or unresponsive? Describe the problem to us on 0495 205 400 and we will tell you exactly what to do while we are on our way.