Price by surface, circuit count and control plan
| Scope | Price all-in (incl. TVA 17 %) |
|---|---|
| Apartment 60–90 m², 8–10 circuits, standard control | €6 500–€10 500 |
| House 100–140 m², 10–12 circuits, standard control | €11 000–€15 000 |
| House 140–180 m², 12–14 circuits, standard control | €14 000–€19 000 |
| House 180–260 m², 14–18 circuits | €18 000–€24 000 |
| Pre-1970 stone house, same scope | +15–25 % |
| Full KNX domotique supplement | +€3 500–€9 000 |
| New Creos supply module, 3-phase 63 A | +€1 400–€2 600 |
| Wallbox 22 kW installation on dedicated line | €1 600–€2 800 |
A house rewire at €16 000 HT bills at €18 720 TTC. The 3 % super-reduced rate can apply to primary residence over 2 years old — dossier on logement.lu before start saves ~€2 240 on the above.
Per-m² benchmarks (turnkey rewire on a cleared interior):
- Standard reno — €95–€125/m²
- Pre-1970 stone with chasing — €115–€155/m²
- Apartment — €105–€140/m²
- With KNX — +€22–€48/m²
Drivers to check:
- Number of circuits. A compliant LU home today runs 10–14 named circuits; older homes typically have 4–6
- Depth of mains. 3-phase 40 kVA suffices for most homes without heat pump; with heat pump and EV, 63 A 3-phase is the baseline
- Chasing versus surface conduit. Surface trunking saves 20–30 % but looks industrial — avoid in living rooms
What drives the rewire bill
- Wall construction. Plasterboard and brick chase at 5–8 linear-metres/hour; stone chases at 1,5–3 m/h with extra dust extraction — this alone explains the pre-1970 premium.
- Circuit count. Each additional dedicated circuit (one appliance, one machine) adds €180–€320 fully fitted.
- Consumer-unit size. A 72-module board (3 rows of 24) costs €380–€650 empty versus €210–€350 for 48 modules. Accept 72 modules as a minimum — future-proofs for PV, heat pump, EV.
- Protection plan. Per-circuit 30 mA RCDs doubles the differential count versus old group-RCD practice but is now the LU standard.
- Lighting plan. 12–16 lighting points in a 160 m² house adds €1 600–€3 200; a domotique scene controller at €180–€360 per room adds €2 500–€6 000 on KNX.
- Data and smart. Cat 6A to every room at one socket: +€180–€260/room. Structured cabinet in basement: €450–€900.
- Commissioning. ILNAS-compliance dossier, certified tests and Creos re-activation: €450–€900 flat fee, always billed separately.
- Season. Winter rewires with heating off for 3–5 days may require temporary heating at €150–€300/day.
What a rewire quote includes and excludes
Standard inclusions on a LU rewire:
- On-site audit, circuit list and single-line diagram
- Creos liaison for counter replacement or upgrade
- New consumer unit (tableau) with master isolator
- Per-circuit 30 mA RCDs and curve-C breakers
- Earth bonding review, new equipotential bar
- Fresh PVC conduits, cable class H07V-U or H07V-K
- Minimum 10 circuits: 2–3 lighting, 2–3 socket, 1 oven, 1 hob, 1 dishwasher, 1 washer, 1 drier/boiler
- Sockets and switches of a named brand (Legrand, Niko, Hager, Schneider)
- Dust extraction, daily site clean, debris disposal
- ILNAS-compliance dossier, certified insulation and earth tests, certificate of conformity
- Creos re-activation file
Usually excluded — separate lines:
- Painting and plastering after chasing — €12–€25/m²
- Tile cutting and replacement — €45–€85/m²
- Fitting of supplied lamps — €25–€45/point
- Networking panel and Cat 6A runs — €180–€260/outlet
- Door-entry system — €650–€1 800
- Integration with existing heating control — €450–€1 200
- Temporary heating during winter outage — €150–€300/day
Every exclusion should be priced as a call-off item in the devis — a single lumpsum is how €15 000 ends at €22 000.
LU context — ILNAS, Creos and TVA
Electrical installation in Luxembourg is regulated by the Institut Luxembourgeois de la Normalisation, de l'Accréditation, de la Sécurité et qualité des produits et services (ILNAS) and carried out under a master electrician registered at the Chambre des Métiers. Working with an unregistered electrician voids home insurance for fire originating in the installation — non-negotiable.
ILNAS essentials:
- Low-voltage installations follow the Règlement grand-ducal on electrical installations and NF C 15-100 adapted for LU
- Every new consumer unit and rewired installation must receive an attestation de conformité before first energisation
- Certified insulation, earthing and continuity tests are mandatory
- Inspection agencies (SOCOTEC, BSZ, AIB-Vinçotte) issue the compliance certificate
Creos side:
- Contact Creos at least 4 weeks ahead for counter changes or supply upgrades
- Counter replacement includes the new smart-meter module; the private installation starts at the main circuit breaker inside the property
- Three-phase 63 A requires a dedicated application and may need cable-route upgrades at €40–€90/linear metre
TVA:
- Standard 17 % on labour and material in rentals, second homes, commercial
- 3 % super-reduced rate on eligible labour in primary residence over 2 years old, dossier logement.lu before start, maximum €50 000 lifetime benefit per owner
- Smart-meter replacement is neutral (Creos-funded)
Communes: declared electricians active across Luxembourg-Ville, Esch-sur-Alzette, Differdange, Dudelange, Mersch, Ettelbruck, Diekirch and the northern cantons. Reach-out to three for comparable devis.
How to compare three electrician quotes
Rewire quotes on identical briefs land within ±15 %. Wider spreads flag a different consumer-unit spec or a missing ILNAS line.
Brief pack for three electricians:
- Plan with room-by-room square metres
- Existing installation age and photo of current consumer unit
- Desired circuit list (lighting, sockets, appliances, EV, heat pump, PV)
- Target consumer-unit size (modules)
- Brand preference for switches and breakers
- Level of domotique (none, starter, KNX)
- Target end date and any constraints (children schooling, elderly resident)
Six comparison checks:
- Single-line diagram attached. Without one the quote is speculative
- Brand and reference of consumer-unit components. Hager, Schneider, ABB
- Switches and sockets brand and finish. Legrand Céliane, Niko Pure, ...
- Cable class and cross-section per circuit. 1,5, 2,5, 6 mm² with reasoning
- Test and certification line-item. ILNAS dossier, inspection body named
- Décennale in devis header. Required for any fixed installation over €5 000
Three quotes on a shared brief land ±15 %. A €10 000 quote against two €16 000 quotes usually cuts the circuit count in half or skips the per-circuit RCD — neither is acceptable.
Hidden costs and red flags
- Asbestos insulation in old cables. Pre-1970 cable insulation sometimes contains asbestos — diagnostic and safe removal: €1 200–€3 600 extra.
- Discovery of aluminium cabling. Late-1960s LU homes occasionally used aluminium; full replacement required under modern rules: +€2 500–€5 000 on a 150 m² house.
- Hidden junction boxes. 1980s homes have buried junction boxes behind plaster; opening for test and replacement: €40–€90 each.
- Earth-spike upgrade. A corroded or missing earth electrode adds €350–€700.
- Counter cabinet relocation. If the Creos counter is inside a wardrobe or in an inaccessible spot, relocating the cabinet costs €650–€1 800.
- Painting and plastering supplement. After chasing, €12–€25/m² is the realistic bill; a contractor promising "leave the walls tidy" without a painter line is setting up for change orders.
Red flags — walk away:
- "Autorisation d'établissement" or ITM master-electrician registration not listed
- No single-line diagram in the quote
- Circuit count under 8 on a 140 m² house
- No ILNAS certification line
- Pre-payment above 25 % before materials are on site
- Promise of Creos re-activation in under one week without a written Creos dossier plan
- Foreign installer without LU Autorisation d'établissement — unacceptable
Rewiring a house in Luxembourg lands between €9 000 and €28 000 in 2026, with typical 140–180 m² 1970–1990 homes at €14 000–€19 000 TTC turnkey. The levers are circuit count, consumer-unit size, control-plan ambition and whether the home is pre-1970 stone — not margin. Secure the 3 % TVA position via logement.lu if the dwelling is your primary residence over 2 years old, plan Creos liaison early, and compare three electrician quotes on a shared brief including circuit list, consumer-unit spec and ILNAS certification line. Fynd.lu lists declared master electricians across Luxembourg-Ville, Esch-sur-Alzette, Differdange, Mersch and Ettelbruck with Autorisation d'établissement, décennale cover and Creos dossier capability — request three side-by-side devis before signing off on a pull-day schedule.