There are repairs where getting it wrong costs more than money. Electrical, gas and plumbing systems are areas where amateur work can be genuinely dangerous. Here’s a clear breakdown of what’s off-limits without a licensed professional, and why.
Electrical work: what you can and absolutely cannot do
Safety warning: working on a live electrical circuit risks electrocution, fire and invalidating your home insurance. In Poland, work on 230 V installations requires a valid SEP qualification certificate.
You’re fine to: change a bulb, replace a fuse, swap a plug on an extension lead. Do not attempt on your own:
- replacing sockets, switches or junction boxes
- running new circuits or cabling
- touching the consumer unit (fuse box)
- fitting recessed or built-in lighting
- hardwiring a cooker hood, dishwasher or oven
Gas: zero compromise
Safety warning: natural gas is odourless in its pure form — the smell is added by the distributor. A leak can cause explosion and carbon monoxide poisoning. Any work on gas installations must be carried out by a certified gas engineer.
Without a gas qualification, you must not:
- move or replace gas pipes
- connect a gas hob or cooker to the supply
- install a gas boiler, water heater or combi unit
- repair any leak or suspect joint on a gas line
If you smell gas: open windows, do not switch anything on or off, leave the property immediately and call 112 or the gas emergency line.
Plumbing: when water becomes a serious problem
Replacing a tap washer — fine. But there are plumbing jobs where a failed attempt floods the flat below:
- moving or replacing soil stacks or waste pipes
- adding new water points (shower, sink, washing machine)
- repairing or replacing ball valves on a main riser
- installing a hot water cylinder or boiler
- fixing hidden leaks inside a wall or under a floor
Legal and insurance implications
In Poland, unlicensed electrical work (without SEP certification) and gas work (without a gas qualification) breach the building code. If damage results, your insurer is entitled to refuse the claim.
Planning a bathroom or kitchen renovation, or any work on installations in your Warsaw flat? Describe the job in the app and say what installations it involves: this work needs a specialist with the right certifications.
How a handyman replaces a socket, and what to watch out for, is covered in the article on replacing an electrical socket. With electricity and gas, don’t try it yourself. You can post the job in the app, and independent handymen will send their quotes.