How to switch gas supplier in Luxembourg: complete guide for 2026
Switching gas provider in Luxembourg is a right guaranteed by law, free of charge, uninterrupted and straightforward. The gas market is fully liberalised: you can leave your current provider at any time and freely choose from the available offers. Gas simulations carried out on Switchr.lu in 2026 show that, for a median profile of 15,000 kWh/year, the annual gap between the most expensive and the cheapest offer stood at €280 VAT included per year. By switching provider, you can therefore save up to 20% on your gas bill.
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Compare gas offers →1. Why switch gas supplier in Luxembourg?
The Luxembourg residential gas market has been liberalised since the law of 1 August 2007 on the organisation of the natural gas market. In practice, this means every consumer can freely choose their supplier from those licensed by the ILR — and switch as often as they like, at any time.
| Reason to switch | Potential impact | Effort required |
|---|---|---|
| Find a cheaper tariff | Several hundred euros/year depending on consumption | Low — one single step |
| Switch to a fixed-rate contract | Protection against price increases | Low |
| Opt for biogas | Reduced carbon footprint | Low |
| Improve service quality | Better online account, clearer billing | Low |
| Exit the default tariff | Immediate savings — default tariff is more expensive | Low |
Legal framework: ILR — Law of 1 August 2007 on the organisation of the natural gas market.
Fundamental right: under Luxembourg regulations, suppliers must notify you of any price change at least 30 days in advance and inform you of your right to cancel your contract without notice or fees before the change takes effect. Any tariff increase is therefore a legal opportunity to switch supplier immediately and at no cost.
2. The process, step by step
Switching gas supplier in Luxembourg is one of the simplest processes in Europe. It requires just one action on your part: contact the new supplier of your choice. They handle everything else.
Gather your annual consumption in m³ or kWh (shown on your recent bills) and compare offers from active residential suppliers in Luxembourg on our gas comparator. Identify the most advantageous offer for your profile (fixed vs variable rate, natural gas vs biogas).
Contact the chosen supplier — online, by phone or in branch — and take out your new contract. Have the required information to hand (see section 3). This is the only step you need to take.
Under Luxembourg regulations, suppliers take care of cancelling your current contract as part of the switching process (ILR, gas FAQ, question 41). You do not need to contact your old supplier. Do not cancel your current contract yourself before subscribing to the new one — this could trigger a supply cut and reconnection fees.
The technical process takes between 2 and 8 working days from validation of your subscription. Throughout this period, you continue to be supplied normally — the Creos network remains unchanged, only the commercial supplier changes. No intervention on your meter is required.
At the changeover date, Creos takes a meter reading (actual or estimated). Your old supplier will send you a final settlement bill — covering actual consumption since your last invoice. If your advance payments exceeded your actual usage, you will be refunded the difference.
The process is completely free. No cancellation fees, no switching fees, no penalties. There is no limit on the number of times you can switch supplier in Luxembourg.
What you do (1 action only):
→ Compare offers → Subscribe with new supplier
What the new supplier does for you:
→ Cancel old contract · Coordinate with Creos · Manage meter reading · Activate your new contract
Total timeframe: 2 to 8 working days · Outage: none · Cost: €0
3. Information to prepare before subscribing
To ensure the subscription goes smoothly and quickly, gather this information before contacting the new supplier. It all appears on your most recent gas bill.
| Information | Where to find it | Required? |
|---|---|---|
| Annual consumption (in m³ or kWh) | On your annual bill or in your online account | Yes |
| Full delivery point address | On your bill or current contract | Yes |
| Meter identification number | On your bill (meter point reference) | Yes |
| Current meter reading | To be read physically from your meter | Recommended |
| IBAN (if direct debit chosen) | Your bank account statement | Depending on payment method |
Source: information requirements confirmed by Luxembourg residential suppliers — Enovos, SUDénergie, Electris — June 2026.
Take a meter reading on the day you subscribe and share it with the new supplier. This index will be used by Creos to determine the exact transfer date and establish the old supplier’s settlement bill — avoiding any later dispute over volumes billed.
4. Fixed-rate contract: can I still switch?
Variable-rate contract
- Supply price may be revised at any time by the supplier
- Minimum 30 days’ notice in case of price change
- Right to cancel immediately and free of charge upon any tariff increase
- Switch supplier at any time, at no cost and without notice from your side
Fixed-rate contract
- Supply price guaranteed for a set period (typically 1 to 2 years)
- Protection against gas market fluctuations
- Early termination may incur contractual penalties
- Check exit conditions before signing
Do not confuse cancellation fees (linked to your contract) with supplier switching fees (which do not exist in Luxembourg). If your current supplier demands fees solely because you are switching supplier — and not because you are breaking a contractual commitment — this is contrary to regulations. You can contact the ILR mediation service: [email protected] · tel. +352 28 228 888.
5. Moving home: specific steps
Moving home involves slightly different steps from a simple supplier switch without changing address. The two scenarios — leaving a home and/or moving into a new one — are worth distinguishing clearly.
Unlike a standard supplier switch, when moving you must cancel your current contract yourself directly with your current supplier. Contact them by phone, email or online. State your desired end date and take a meter reading on that day. Your supplier will send you a final settlement bill.
Unlike France or Belgium, every home in Luxembourg is already connected to gas when you arrive — you are automatically supplied by the default supplier (Enovos on the Creos network). To avoid remaining on this more expensive tariff, subscribe with your chosen supplier as soon as possible after moving in — ideally before.
If your new home also needs an electricity contract, this is a good opportunity to consider a combined electricity + gas contract with the same supplier — if this proves advantageous. Enovos offers this type of dual contract in Luxembourg.
Default supply — limited duration: default supply in Luxembourg is a temporary solution. It is only valid for a maximum period defined by the ILR (typically the first few months after moving in). Beyond this period, if no contract is subscribed, the situation can become problematic. Subscribe a contract upon moving in to benefit from a commercial tariff lower than the default rate and a stable contractual relationship.
6. Default supplier: how to exit quickly
If you are currently supplied by the default supplier — whether following a recent move or because your previous supplier ceased operations — it is in your interest to regularise this situation as quickly as possible.
| Feature | Default tariff (Enovos) | Freely subscribed commercial contract |
|---|---|---|
| Price | Higher (risk premium included) | Competitive market tariff |
| Duration | Temporary (maximum period set by ILR) | Stable contract, no mandatory commitment |
| Choice of supplier | None — Enovos designated by ILR | Free choice among licensed suppliers |
| Choice of offer type | None | Fixed rate, variable rate, biogas… |
Source: ILR Luxembourg — designation of Enovos as default supplier on Creos network · Enovos — default natural gas supplier.
To exit the default tariff: simply subscribe to a contract with the supplier of your choice (Enovos, SUDénergie or Electris). The process takes 2 to 8 working days, with no outage. Your chosen supplier handles ending the default supply and activating your new contract.
7. How to choose the best gas offer
Before subscribing, comparing offers correctly means looking at the right indicators — not just the headline price displayed on the supplier’s website.
This is the component on which suppliers differentiate themselves. Compare it first. Always compare the supply price excluding network fees and taxes for a fair comparison — or use a simulator that calculates the total bill based on your actual consumption.
Every contract includes a monthly fixed charge (network access + service fee). Its amount varies little between suppliers since the network portion is regulated, but the commercial component can differ. For low annual consumption, the fixed charge carries proportionally more weight.
A fixed rate locks the supply price for a set period — ideal if you anticipate gas price increases (CO₂ tax trajectory, market context). A variable rate moves with market conditions — potentially more advantageous short-term but less predictable. In 2026, the STATEC forecasts a downward trend — which may make the variable rate temporarily more attractive.
Biogas (available from Enovos and SUDénergie) is produced by anaerobic digestion of organic materials. It is slightly more expensive than fossil gas but carbon-neutral over its life cycle. If your goal is purely economic, fossil natural gas is cheaper. If you also weigh your environmental impact, biogas is worth the modest premium.
Online account, customer service responsiveness, billing clarity, payment options — these qualitative criteria matter over the life of a contract. In Luxembourg, the three residential suppliers (Enovos, SUDénergie, Electris) each have their own strengths in this area.
The most reliable comparison method is to calculate the total simulated annual bill based on your actual consumption in m³/year — rather than comparing unit prices in isolation. Our gas comparator performs this calculation automatically for each available offer, based on current-month tariffs.
8. After switching: what to expect
| Step | Typical timeframe | What to do |
|---|---|---|
| New contract activation | 2 to 8 working days | Nothing — your supplier notifies you |
| Final bill from old supplier | 2 to 6 weeks after switch | Verify volumes billed against your meter reading |
| First bill from new supplier | According to contractual billing cycle | Verify meter data is correct |
| Refund of overpaid advances | Included in final settlement bill | Legal refund deadline applies to supplier |
Source: supplier switching procedure — ILR Luxembourg · Luxembourg residential suppliers.
In case of a problem: if your old supplier is slow to send the settlement bill, or if you spot incorrect billing, contact the supplier’s customer service first. If the dispute is unresolved, you can contact the ILR mediation service free of charge: [email protected] · tel. +352 28 228 888. The ULC (Luxembourg Consumer Union) can also assist you.
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Compare gas offers →Frequently asked questions
How long does switching gas supplier take in Luxembourg?
The technical process takes between 2 and 8 working days from validation of your subscription by the new supplier. During this period, you continue to be supplied normally, with no gas outage. Creos, the network operator, guarantees continuity of supply regardless of the commercial situation.
Do I need to cancel my current contract before switching?
No — and it is strongly advised against. Under Luxembourg regulations, the new supplier takes care of cancelling your current contract. If you cancel your own contract before subscribing to a new one, you risk a meter closure by Creos and reconnection fees. The only step you need to take is to subscribe with the new supplier.
Are there any fees for switching gas supplier in Luxembourg?
Switching supplier is completely free — no switching fee can be charged. If your current contract contains an early termination clause with fees, these may apply — but they are linked to your contract, not to the act of switching supplier. Variable-rate contracts are generally cancellable at any time without fees.
Can my supplier prevent me from leaving?
No. The right to switch supplier is guaranteed by the Luxembourg law of 1 August 2007. Your current supplier cannot oppose your departure or demand notice from you for a variable-rate contract. The only situation where a delay may apply is a fixed-rate contract with an explicit contractual commitment period.
What happens if my gas supplier goes bankrupt?
Your gas supply is not interrupted. The ILR has designated Enovos as the last-resort supplier for all of Luxembourg. If your supplier ceases operations, Enovos automatically takes over to ensure continuity of supply. You will then be billed at the last-resort tariff — a more expensive rate — until you subscribe a new contract with the supplier of your choice.
Does my meter change when I switch supplier?
No. Your meter remains the same — it belongs to Creos, the network operator, and not to your commercial supplier. No physical intervention on your installation is required when switching supplier. Only the commercial relationship changes.
Can I switch back to my previous supplier after moving?
Yes, perfectly possible — the gas market is fully reversible in Luxembourg. You can switch supplier as many times as you like, including returning to a supplier you previously left. The number of switches is unlimited and no minimum period is imposed between changes.