Setting Up Utilities in Brussels (Electricity, Gas, Water, Internet)

You have the keys, the boxes are in the hall, and the flat is dark because nobody told the electricity to keep flowing. Setting up utilities in Brussels is very doable, but it works differently from most countries: one company runs the wires and a completely separate company sells you the power. Get that distinction right and the rest is paperwork.

The one thing to understand first: grid operator vs supplier

In Brussels there are two different players for electricity and gas, and mixing them up is the single most common mistake new arrivals make.

• Sibelga is the grid operator (gestionnaire de réseau de distribution / distributeur) for all 19 communes of the Brussels-Capital Region. It owns and maintains the wires and gas pipes, physically opens and closes your meter, and reads it. Sibelga is the same for everyone — you do not choose it and cannot switch away from it.
• Your supplier (fournisseur / leverancier) is the commercial company you actually sign a contract with and who bills you for the energy you consume. In Brussels the main options are Engie (Electrabel), Luminus and TotalEnergies, plus a handful of smaller players.

So Sibelga delivers the energy through the network; the supplier sells it to you. You will deal with both.

Electricity and gas: how to switch it on

Step 1 — Find your EAN codes and meter readings

Every connection has an EAN code: an 18-digit number starting with 54 that uniquely identifies your electricity meter, and a separate one for gas. You will find these on a previous bill, on the meter cabinet, or you can ask Sibelga. You will need them for every contract and appointment.

On move-in day, before anything else, write down and photograph the meter readings (the opening index) for electricity and gas, with the date. This is what protects you from paying for the previous occupant's usage.

Step 2 — Choose and contract a supplier

Pick a supplier (see the comparison section below) and open a contract for your address. You will give them your EAN codes and your opening index. If you are taking over from a previous occupant, the energy transfer document (document de reprise des énergies / overnamedocument) records the meter readings agreed between the outgoing and incoming occupant and tells the supplier where your account starts. Sibelga publishes a template — submit your readings to your chosen supplier no later than the day you move in.

Step 3 — Deal with the meter if it is closed

Whether power keeps flowing depends on the state of the meter:

• Meters still open (previous tenant transferred rather than closed them): a supplier contract plus the transfer document is normally enough. Nothing physical needs to happen.
• Meters closed (a technician switched them off): you must sign a supplier contract first, then book a Sibelga appointment to reopen them. Call Sibelga on 02 549 41 00 with your EAN codes ready. This is a paid, scheduled visit and can take several working days, so do it early. Never break a seal or reopen a meter yourself.

Comparing energy tariffs (do this before you sign)

Brussels has the fewest active suppliers of any Belgian region and stronger consumer protection, so offers are less varied than in Flanders or Wallonia — but prices still differ meaningfully. Use the official, free comparison tool rather than a random blog.

BruSim is run by Brugel, the Brussels energy regulator. Have your last annual bill (or an estimate of your yearly kWh use) to hand, enter your data, and it lists every Brussels supplier split into fixed-price and variable-price offers, including current promotions.

• Official comparator: brugel.brussels → BruSim
• Do not rely on the headline "from €X" price — the total depends on your consumption, the standing fee, and network/levy costs that are the same across suppliers.

Tip: green-electricity offers are widely available and often barely more expensive; BruSim flags which offers are 100% renewable.

If you can't get a normal contract: budget meters and guaranteed supply

Brussels has strong protections for people in payment difficulty. If you have energy debt or cannot get a commercial contract, you may be moved onto a prepayment / budget meter function (increasingly delivered through the smart-meter rollout — you top it up and consume against the credit). Separately, guaranteed supply can be requested only through your commune's CPAS/OCMW (public social welfare centre); Sibelga then supplies you and bills at the federal social rate. Note that Sibelga can refuse or not renew guaranteed supply if you owe it €300 or more without an agreed repayment plan. Most new arrivals won't need this, but it exists.

Water: Vivaqua

Water in Brussels is supplied by Vivaqua. Unlike energy, there is nothing to shop around for — one operator, one rate.

• When you move in, inform Vivaqua within 15 working days. Register online at vivaqua.be, or call 02 518 88 10 (Mon–Fri, 8:30–17:00).
• Take the water meter number and its reading on move-in day, exactly as you did for energy.
• Vivaqua bills you (the registered occupant) directly, typically with periodic instalments and an annual settlement invoice where you pay the difference or get a refund. Check the current tariff on vivaqua.be/en/water-rates — Brussels uses a single "linear" rate per m³ plus a small fixed annual charge (approximate figures circulate online but confirm the current rate on the official page).

Apartment exception: in many blocks there is a single collective water meter and the syndic (building manager) splits the bill across flats as part of your service charges. In that case you may have no individual Vivaqua contract — ask your landlord or syndic before registering, so you don't set up a duplicate account.

Internet and mobile

Broadband in Belgium runs on a few physical networks: Proximus (nationwide, the only full-fibre roll-out), Telenet (cable, in Brussels' Dutch-speaking side) and VOO/Orange on cable in French-speaking Brussels. Most people buy a bundle (internet + TV + mobile) because it's cheaper than buying separately.

• Proximus — widest coverage and fibre where available; premium pricing.
• Telenet — fast cable, strong in Brussels; check your building's coverage.
• Orange — competitive bundles, often the value pick.
• Cheaper players — Scarlet (budget arm of Proximus), EDPnet, hey! and others resell the same networks for less; fine for lighter users.
• Compare offers on the official BIPT comparison list (the telecom regulator) at bipt.be rather than trusting a single provider's ad.

Switching without downtime: use Easy Switch. Give your new operator your Easy Switch ID and customer number (on your old bill) and they handle cancelling the old contract and coordinating the changeover to minimise any interruption, and to prevent double billing. You can keep your phone number — a mobile port takes at most one working day after validation; fixed-line internet/TV can take longer if an engineer visit is needed.

For mobile only, a prepaid SIM (Proximus, Orange, Base, or budget brands like hey!/Mobile Vikings) is the fastest way to get a Belgian number in your first week — buy one in any supermarket or phone shop with your ID.

Common problems and fixes

• "The flat is dark and the meter won't come on." The meter is closed. Sign a supplier contract first, then book a Sibelga reopening appointment on 02 549 41 00. It's a paid visit — allow several days.
• "I got a bill for energy I didn't use." You skipped the opening index. Send your supplier the dated move-in meter photos and the energy transfer document to correct the start point.
• "Two suppliers seem to be billing me." The previous occupant's contract wasn't closed. Contact your supplier with your move-in date and readings; the transfer document resolves the overlap.
• "No water bill has ever arrived." Either you never registered with Vivaqua, or water is billed collectively via the syndic. Check with your building manager before assuming a mistake.
• "My internet switch cut me off." Raise it under Easy Switch rules — the outgoing operator must stop charging by the end of the day after being told of the transfer, and interruptions are meant to be minimised.

Your next step

Today, before you unpack another box: photograph every meter — electricity, gas and water — with the date, and note the two EAN codes. Those five numbers are the foundation of every utility contract you're about to sign, and they're the only thing you can't recreate later once the previous occupant's readings are gone. Then open BruSim to pick your energy supplier and register with Vivaqua within your 15-working-day window.