A complete renovation entirely transforms your property: plumbing, electrical, heating, insulation, joinery, floors, walls, kitchen, bathroom… It’s an ambitious project that requires meticulous preparation and professional support.
What is a Complete Renovation?
A complete renovation (or “whole-home renovation”) covers all technical and finishing work in a home:
- Demolition of existing elements (partitions, coverings)
- Structural work if necessary (structural modifications)
- Complete plumbing and sanitary installations
- Electrical system brought up to standard
- Heating and ventilation
- Thermal and acoustic insulation
- Interior and sometimes exterior joinery
- Floor and wall coverings
- Fully equipped kitchen and bathroom(s)
The 10 Steps of a Complete Renovation
1. Project Definition (2-4 weeks)
List your needs, your wishes, your budget. Visit showrooms, collect inspiration.
2. Finding Professionals (2-3 weeks)
On tack.lu, describe your project and receive up to 3 quotes from verified companies.
3. Studies and Detailed Quotes (2-4 weeks)
The companies visit, take measurements, and prepare itemized quotes line by line.
4. Permits (0-3 months)
If you modify the structure or the facades, a building permit may be required.
5. Demolition and Preparation (1-2 weeks)
Removal of old fixtures, demolition of partitions, rubble disposal.
6. Structural Work (2-4 weeks)
Modifying partitions, creating openings, reinforcement if necessary.
7. Technical Second Fix (3-6 weeks)
Running the networks: plumbing, electrical, heating, mechanical ventilation.
8. Insulation and Partitioning (2-3 weeks)
Installation of thermal and acoustic insulation, assembly of partitions and suspended ceilings.
9. Coverings and Finishes (3-4 weeks)
Tiling, parquet, painting, wallpaper, wall tiles.
10. Fittings and Handover (1-2 weeks)
Kitchen and bathroom installation, final adjustments, cleaning, handover.
Trades and Order of Intervention
| Order | Trade | Average Duration |
|---|---|---|
| 1 | Mason (structural work) | 2-4 weeks |
| 2 | Plumber (networks) | 1-2 weeks |
| 3 | Electrician (wiring) | 1-2 weeks |
| 4 | Heating engineer | 1 week |
| 5 | Drywaller / Plasterer | 2-3 weeks |
| 6 | Tiler | 1-2 weeks |
| 7 | Carpenter / Joiner | 1-2 weeks |
| 8 | Painter | 1-2 weeks |
| 9 | Kitchen / Bathroom fitter | 1-2 weeks |
The order is crucial: the plumber must run their pipes BEFORE the drywaller. That’s why a single point of contact is recommended.
Why choose a single point of contact →
Average Price per m² in Luxembourg (2026)
| Renovation Type | Price/m² | Example 80m² |
|---|---|---|
| Light renovation | €400-700 | €32,000-56,000 |
| Medium renovation | €700-1,000 | €56,000-80,000 |
| Complete renovation | €1,000-1,300 | €80,000-104,000 |
| Premium renovation | €1,300-1,800 | €104,000-144,000 |
These prices include all trades and standard finishes.
Realistic Duration of a Complete Renovation
| Surface | Estimated Duration |
|---|---|
| Studio 30m² | 6-10 weeks |
| Apartment 60m² | 10-14 weeks |
| Apartment 100m² | 14-18 weeks |
| House 150m² | 5-8 months |
| House 200m²+ | 6-12 months |
Add 2-4 months if a building permit is required.
3% VAT: Conditions and Savings
In Luxembourg, you benefit from the super-reduced 3% VAT if:
- The property is more than 10 years old
- It’s your primary residence
- You are the owner-occupier
Savings on €80,000 of works:
- 17% VAT: €13,600
- 3% VAT: €2,400
- Savings: €11,200
Klimabonus Grants 2026
Energy renovation works benefit from substantial grants:
| Works | Maximum Grant |
|---|---|
| Roof insulation | €50/m² |
| Wall insulation | €60/m² |
| Heat pump | up to €12,000 |
| Triple-glazed windows | €50/m² |
| Mechanical ventilation (VMC) | up to €3,000 |
Complete Klimabonus 2026 guide →
How to Choose Your Company?
What to check:
- ✅ Registration with the Chamber of Trades (Chambre des Métiers)
- ✅ Valid ten-year liability insurance
- ✅ Verifiable references
- ✅ Detailed, itemized quote
- ✅ Realistic schedule
What to avoid:
- ❌ Quote that is too vague or lump-sum
- ❌ No on-site visit
- ❌ Abnormally low price
- ❌ Deposit request > 30%
- ❌ No written contract
Find a company for a complete renovation →
FAQ
Can you live in the home during the works?
For a complete renovation, it’s very difficult. Water and electricity are often cut off for several weeks. Plan for temporary accommodation.
Do you need an architect?
Mandatory if you modify the building’s structure (load-bearing walls, facade). Recommended for complex projects even when not legally required.
How much should you set aside for contingencies?
10 to 15% of the total budget. In a renovation, hidden problems are often discovered (damp, outdated wiring, etc.).
