Locked Out: What to Do?

You stepped out to grab a delivery, the wind caught the door, and now you are standing in the hallway in your socks with your keys on the kitchen counter. We get this call every single day — morning, evening, holidays, you name it. The good news is that in most cases, we open the door in under fifteen minutes without a scratch. This guide gives you the right steps to follow so you stay calm, avoid costly mistakes, and get back inside as quickly as possible.

Stay Calm: The Right Reflexes

The very first thing to do when your door slams shut is to not panic. This is an extremely common incident, and in the vast majority of cases a qualified locksmith can open your door within minutes without causing any damage at all.

Here are the reflexes you should adopt immediately:

• Check your pockets and bag — it happens more often than you think that a spare key is hiding in a coat pocket or at the bottom of a handbag.
• Stay at your door — do not wander away from your home, especially if the door is not locked with a key but simply slammed shut. In that case the lock is not fully engaged, and the opening will be much faster.
• Note the type of lock if you can — is it a Fichet, Bricard, Vachette, or another brand? This information will help the locksmith prepare the right tools before arriving.
• Keep your phone charged — if your battery is running low, make the essential calls first.

In Brussels, whether you are in Ixelles, Uccle, Saint-Gilles, or Schaerbeek, the situation is usually resolved in under an hour if you adopt the right reflexes from the start.

Check Alternative Access Points

Before calling anyone, take a few minutes to check whether there is an alternative way into your home. This can save you both time and hassle.

• Windows left ajar — walk around your property. In summer especially, it is not uncommon for a window to have been left open or tilted. However, never attempt to climb a facade or cross a dangerous balcony. Your safety comes first, always.
• Trusted neighbours — if you live in a Brussels apartment building, a neighbour may have a spare set of your keys. Now is the time to check.
• Building manager or concierge — in many Brussels co-ownership buildings, the building manager keeps a set of keys for emergencies. Check whether yours offers this service. Larger residential buildings in Woluwe-Saint-Lambert, Etterbeek, or Auderghem often have a concierge reachable during the day.
• Landlord — if you are a tenant, your landlord has usually kept a spare key. A quick phone call may be all it takes.

If none of these solutions work, it is time to call a professional. But not just any professional.

What You Should Absolutely NOT Do

When you are locked out, the temptation to solve the problem yourself is strong. It is almost always a bad idea. Here is what you must absolutely avoid:

• Forcing the door with a screwdriver or crowbar — you will damage the door frame, the lock, and potentially the cylinder. The result: a much higher bill to replace everything, on top of repairs to the door frame itself.
• Using a credit card or an X-ray film — a common thing we hear from customers is "I already tried with my bank card." This technique, popularised by films, almost never works on modern locks installed in Brussels. Locks from Fichet, Mul-T-Lock, or Picard are designed to resist this kind of manipulation. You are far more likely to break your card and scratch your door.
• Trying to pick the lock — lock picking requires professional tools and years of practice. Without training, you risk permanently jamming the mechanism, turning a simple door opening into a full lock replacement.
• Climbing through a window at height — every year in Belgium, serious accidents occur because people try to scale a building to get back inside. Never take this risk.

In short, any amateur attempt is likely to turn a minor incident into a costly repair. We have seen doors kicked in that would have taken us ten minutes to open — what should have been a straightforward job turned into a full door replacement. It is far better to wait and call a professional.

Finding a Trustworthy Locksmith (Without Getting Ripped Off)

Choosing the right locksmith is the most important step. In Brussels, the locksmith sector unfortunately includes some unscrupulous companies that take advantage of the urgency to inflate their bills. Here is how to choose a reliable locksmith:

• Check the BCE number — in Belgium, every legitimate locksmith is registered with the Banque-Carrefour des Entreprises (Crossroads Bank for Enterprises). Ask for the number and verify it online before accepting any work.
• Demand a quote before the intervention — a serious locksmith will give you an estimate over the phone and confirm the amount on site, before starting any work.
• Beware of premium-rate numbers — reliable locksmiths in Brussels use standard Belgian phone numbers (landline or mobile), never numbers starting with 0900.
• Look for verified reviews — check Google Maps, Trustpilot, or the Belgian Yellow Pages to verify the company's reputation before you agree to anything.

To learn more about protecting yourself, read our complete guide to avoiding locksmith scams in Brussels. We detail the warning signs and the recourse options available to you.

At Serrurier Janssens, our team is trained to work on locks from all the major brands found in Belgium: Fichet, Bricard, Vachette, Mul-T-Lock, Picard, and Wilka. Every intervention is preceded by a clear quote with no hidden charges.

How the Intervention Works

If you call our door opening service in Brussels, here is exactly how the process unfolds:

• Phone call and diagnosis — we ask you a few questions: type of door, lock brand if known, floor level, and whether the door is simply slammed shut or locked with a key. This allows our technicians to bring the right equipment.
• Arrival on site — across Brussels and its 19 municipalities, travel time is typically 15 to 30 minutes, day or night.
• On-site assessment and quote confirmation — the technician examines the lock and confirms the exact cost of the intervention before beginning. You remain free to decline.
• Damage-free opening — in the majority of cases, a slammed door (not locked with a key) is opened in 5 to 15 minutes using non-destructive techniques. For multipoint locks from Fichet or Mul-T-Lock that are fully locked, the operation can take up to 30 minutes.
• Verification and advice — once the door is open, the technician checks that the lock is functioning correctly and gives you advice on how to prevent the situation from happening again.

This service is available 24 hours a day, 7 days a week, including public holidays. Whether your door slams shut at 3 in the morning in Forest or on a Sunday afternoon in Jette, we are ready to help.

Prevent It from Happening Again

Once you are back inside, take the time to put measures in place so you never find yourself locked out again. Here are the most effective options:

Get Spare Keys Made

The simplest solution is to have several sets of keys. Give a spare to a trusted friend or family member, keep one at the office, or leave one in your car. Our key duplication service covers all common brands in Belgium, including patented keys from Fichet, Bricard, and Mul-T-Lock that require an ownership card.

Install a Smart Lock

More and more Brussels residents are choosing a smart lock. These devices, such as those offered by Nuki, allow you to open your door with your smartphone. No physical key needed: even if your door slams shut, you can unlock it from your phone. This is a particularly practical solution for families with children or homeowners who use cleaning or delivery services.

Adopt Good Habits

• Never step outside without your keys, not even for a few seconds — the majority of slammed doors happen when taking out the rubbish or fetching the post.
• Install a door stop — a small accessory that prevents the door from closing fully when you do not want it to.
• Check your home insurance — some policies in Belgium cover locksmith fees in case of a lockout. Review your general conditions or call your broker.
• Save a trusted locksmith's number — in an emergency, you will not have to search in a rush. Save 0495 205 400 in your contacts now.

Getting locked out is annoying, but it is not the end of the world. Stay calm, check for alternative access, and if nothing works, call someone you can trust. Once you are back inside, take five minutes to give a spare key to a neighbour or save a reliable locksmith's number. That small step can save you a lot of stress next time. We are available around the clock at 0495 205 400.