Fibre installation in Luxembourg: complete guide for 2026
Luxembourg is one of the most fibre-connected countries in Europe, with 83.8% of households able to connect to FTTH fibre optic according to the ILR’s 2024 report. But switching to fibre involves more than just picking a provider — you need to check your address eligibility, understand the difference between apartments and houses, know your rights as a tenant, and anticipate potential costs. This guide explains exactly how fibre installation works in Luxembourg, step by step.
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Fibre optic in Luxembourg: current situation 2026
Luxembourg ranks among the European leaders in FTTH (Fiber To The Home) fibre optic deployment. According to the ILR’s 2024 statistical report published in June 2025, fibre coverage has reached 83.8% of households and premises — exceeding cable network (DOCSIS 3.1) coverage for the first time. Across all technologies combined (fibre + cable), 95.5% of households are served by a network enabling speeds of 1 Gbit/s or more. Telecom infrastructure investment reached €140.2 million in 2024 — the highest level in several years. For a technology overview, see our fibre optic in Luxembourg guide.
Source: ILR — Luxembourg Telecommunications Statistical Report 2024 (published June 2025). Data as at 31 December 2024.
Luxembourg is progressively phasing out its copper network. Since 2024, operators have been migrating customers from DSL/VDSL to fibre. All DSL access is to be replaced by very high-speed technologies by 2030. If your home still uses ADSL or VDSL, a migration to fibre is likely already planned for the coming months.
Step 1 — Check your address eligibility for fibre
Before taking any steps, checking your address eligibility is essential. Fibre coverage in Luxembourg is not uniform — while 83.8% of households are connectable, that means 16.2% are not yet.
Ready to check your eligibility?
Test my address for freeStep 2 — Choose your fibre offer and subscribe
Once eligibility is confirmed, compare available offers at your address and subscribe. For a full operator comparison, see our guide on internet providers in Luxembourg.
| Criterion | What you need to know |
|---|---|
| Speed offered | 500 Mbit/s to 1 Gbit/s is more than sufficient for most households. Multi-gigabit offers (4–8.5 Gbit/s) are for heavy users. |
| Symmetric speeds | FTTH fibre offers symmetric speeds (equal upload and download) — essential for remote working and video conferencing. |
| Installation and activation fees | Some operators offer these free; others charge. Always check before signing. |
| Modem/router rental | Typically €5–7/month. See our modem and router guide. |
| Contract duration | 24-month offers are often cheaper but less flexible. See our no-contract internet guide. |
| TV and telephony options | Many operators offer combined packs (Internet + TV + landline). See our internet TV in Luxembourg guide. |
For an up-to-date comparison of prices and offers, use our Luxembourg internet comparator.
Once subscribed, the operator will contact you to schedule an installation slot. Allow approximately 2–3 weeks between signing your contract and the technician’s visit. If you’re switching providers, do not cancel your current contract yourself — your new provider handles the transition. More details in our guide on switching internet provider in Luxembourg.
How does FTTH fibre optic work?
FTTH fibre uses a glass or plastic cable — thinner than a human hair — that carries data as pulses of light. Unlike ADSL or VDSL using copper lines (which suffer signal degradation over distance), fibre optic maintains its performance across long distances and offers stable symmetric speeds.
| Element | Role | Location |
|---|---|---|
| NRO (Optical distribution node) | Core of the operator’s fibre network, starting point of all cables | Operator’s data centre / technical facility |
| PM (Junction point) | Intermediate junction in the neighbourhood | Street cabinet or underground chamber |
| PBO (Optical connection point) | Building or street connection point | Building basement or underground chamber near the house |
| PTO (Optical terminal socket) | Wall-mounted fibre socket in your home, the final connection point | Inside your apartment or house (living room, entrance…) |
| Box / ONT | Converts the optical signal into a digital signal for your devices | At your home, plugged into the PTO |
Source: POST Technologies, FTTH network architecture in Luxembourg. More: fibre optic Luxembourg guide.
Step 3 — Fibre installation in an apartment
Building already cabled (existing internal wiring)
- Technician accesses the building’s PBO (fibre cabinet in basement)
- Cable routed through existing conduits to your floor
- Optical terminal socket (PTO) installed in your home
- Box configured and Wi-Fi credentials handed over
- Total duration: 1 to 2 hours
Building not yet internally cabled
- Building management company (syndic) must authorise common area works
- Simple majority of co-owners required (2017 law)
- Longer timelines (several weeks to months)
- Tenant must have landlord’s written consent
- Intervention duration: 1.5 to 3 hours
The presence of an adult is mandatory throughout the entire intervention. Ensure you have access keys to common areas (basement, car park, technical room) or that the concierge/syndic will be available. Decide in advance where you want the optical socket (PTO) and box placed in your home.
Step 4 — Fibre installation in a house
Installing fibre in a house is slightly more complex as the connection must run from the public road to the inside of your property. If you’re moving and need connectivity quickly, see our internet when moving house guide.
Tenants: your rights and steps to follow
As a tenant, you must obtain your landlord’s written agreement before any fibre installation. Most landlords agree readily, as fibre connectivity adds value to the property. If the building needs internal cabling work in common areas, the syndic must also authorise it under the 2017 law (simple majority). Under Luxembourg’s 2017 law on broadband deployment, tenants have the right to formally request the installation of broadband infrastructure in their building.
1. Check address eligibility on myilr.lu or with an operator
2. Inform landlord in writing and obtain agreement
3. If common area cabling is needed → ask syndic to add to the next AGM agenda
4. Subscribe with the operator of your choice
Estimated total timeline: 2 to 6 weeks depending on building situation.
Installation costs: what you need to know
| Situation | Typical cost | Notes |
|---|---|---|
| Apartment already pre-cabled (PTO in place) | €0 (included) | Most common case in modern or renovated buildings |
| Apartment in cabled building (no PTO) | Often €0 (promotional offer) | Check the specific conditions of your chosen offer |
| House — standard connection | €50–150 | Varies by operator and distance from the optical connection point |
| Complex cabling (no existing conduits, specific works) | €150–300+ | Quote required — always ask before subscribing |
Indicative figures based on Luxembourg operator pricing practices as of June 2026. Prices vary by operator and promotional offers — always confirm with the operator before subscribing.
If your home requires specific works (absent internal cabling, long cable run, multiple wall penetrations, isolated house…), complex cabling fees may apply even if the operator advertises « free installation ». Always ask the operator before subscribing, especially for houses.
Fibre providers in Luxembourg
| Provider | Infrastructure | Max speed | Key feature |
|---|---|---|---|
| POST Luxembourg | Own FTTH network (73.4% of fixed network investment, ILR 2024) | Up to 10 Gbit/s (commercial 8.5 Gbit/s) | Widest national coverage, first AI-autonomous fibre network in Europe. Guide: POST internet Luxembourg |
| Orange Luxembourg | FTTH (all Luxembourg cantons) | Up to 8.5 Gbit/s, Wi-Fi 7 | Free installation, immediate 4G+. Guide: Orange internet Luxembourg |
| Tango (Proximus) | FTTH (main municipalities) | Up to 8.5 Gbit/s, Wi-Fi 7 | Day-1 4G+, aggressive promotions. Guide: Tango internet Luxembourg |
| Luxembourg Online | FTTH + DSL + cable | Up to 2 Gbit/s | 100% independent Luxembourg operator. Guide: Luxembourg Online internet |
| Eltrona | Coaxial cable (85% of territory) | Up to 1 Gbit/s | No commitment, 7-day installation, nPerf Gold 2025. Guide: Eltrona internet Luxembourg |
Sources: operator official websites, ILR 2024, nPerf 2025. Data as of June 2026 — subject to change.
My address isn’t covered yet: what are my options?
Frequently asked questions — fibre installation Luxembourg
How long does it take from subscribing to fibre installation in Luxembourg?
Typically 2 to 3 weeks between signing your contract and the technician’s visit. This varies depending on technician availability, installation complexity, and the time of year. For a house or complex connection, it may take longer.
Do I need to be present during the fibre installation?
Yes — the presence of an adult is mandatory throughout the entire intervention. You must be available for the whole scheduled time slot to give the technician access to all necessary areas and confirm the placement of the optical socket and box.
Can I change my mind about where the fibre socket is placed after installation?
It’s possible to relocate the optical terminal socket (PTO) after initial installation, but this may incur additional charges. It’s strongly advised to decide the ideal location in advance before the technician arrives — consider proximity to your main TV, Wi-Fi device placement and box accessibility.
Can I switch fibre providers without losing my internet connection?
Yes. Do not cancel your current contract yourself. Subscribe with the new provider first — they handle the transition and cancellation of your old contract. This minimises service interruption and allows you to keep your landline number in most cases. More: switching internet provider in Luxembourg.
Will the copper network really disappear in Luxembourg?
Yes. Luxembourg’s « copper phase-out » is officially underway — all DSL/VDSL connections will be replaced by very high-speed alternatives by end 2030. Operators began migrating customers in early 2024. Track progress at myilr.lu.
What is the difference between FTTH fibre and cable (DOCSIS)?
FTTH delivers an optical cable directly into your home, offering symmetric speeds (equal upload and download) and very low latency. DOCSIS cable uses a shared coaxial cable, which can result in lower upload than download speeds. For everyday household use, both technologies are very effective. FTTH is considered more future-proof and scalable. More: cable internet in Luxembourg.
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