Why choose Avenir Renovations?
Why hire a professional for your bathroom in Liège?
A successful bathroom relies on three pillars: design, technique, and finish. The age of Liège buildings, sometimes narrow access, shared walls, and humidity require a rigorous method and impeccable execution details.
Design that makes life easier
- You optimize circulation (door opening, drying area, access to the toilet) and the ergonomics of equipment in daily use.
- You gain storage and layout (shower niches, columns, full-extension drawers).
- You anticipate maintenance: joints, washable surfaces, choice of easy-to-clean coverings.
Mastered and sustainable technique
- Networks (hot/cold water, drainage, VMC) are recalibrated to avoid pressure losses and bad odors.
- Waterproofing (shower tray, walk-in shower, walls, corners) is treated with certified systems; singular points are reinforced.
- Electricity is brought into compliance with RGIE (safety volumes, differential switches, adapted IP lighting).
Careful finishes and comfort
- Tiling is laid out with precision (alignments, fractions, trims), with uniform joints and compliant slopes.
- Lighting is designed (general + mirror + accent) for visual comfort morning/evening.
- Acoustics are improved (underlays, adapted partitions); ventilation limits condensation.
Your bathroom project in 6 steps
A clear method avoids rework and keeps to the schedule.
Bathroom renovation works and services
Every project begins with a technical visit: measurements, detection of constraints (load-bearing elements, drainage, ventilation), condition of supports, and aesthetic wishes. We provide a quote by lots (plumbing, electricity, heating, tiling, carpentry) with clear options.
- Replacement/installation of shower (flat shower tray, walk-in, channel) and bathtub (classic, freestanding, shower-bath).
- Wall-hung toilet with support frame (easier maintenance, visual gain).
- Vanity units (soft-close drawers, mineral or ceramic sink tops), illuminated mirrors.
- Professional brands available in Belgium: Grohe, Hansgrohe, Geberit, Ideal Standard, Villeroy & Boch, Detremmerie, etc.
- Waterproofing systems (mats, coatings, corner strips) before tiling, with slope and runoff tests.
- Hydro partitions (Gyproc H2, Fermacell) or ready-to-tile panels for wet areas.
- Reconnections of collectors, pressure reducers, check valves if necessary.
- Recalibration of drain slopes, anti-noise decoupling on drops.
- Reconnections of collectors, pressure reducers, check valves if necessary.
- Recalibration of drain slopes, anti-noise decoupling on drops.
- Towel warmers water/electric, low-height underfloor heating if structure compatible.
- Thermostatic mixers, anti-limescale, flow limiters (comfort + savings).
- Ceramic/stone tiles, large formats, mosaics; waterproof joints.
- Alternative coverings (composite panels, suitable coatings) if requested.
- Carpentry: doors, furniture, shower niche, blue stone shelf, custom plan.
How much does a bathroom renovation cost in Liège? (VAT included)
Prices vary according to surface area, the condition of the networks, the waterproofing to be addressed, and the level of finish. A detailed quote always follows a visit.
| Item | Price indication (VAT included) |
| Partial renovation (furniture + local painting/tiling) | 2,500 to 6,500 € |
| Complete shower (tray/walk-in + walls + fittings) | 2,000 to 5,500 € |
| Wall-mounted toilet (support frame + bowl + covering) | 800 to 1,800 € |
| Vanity unit (unit + basin + faucet + mirror) | 700 to 2,500 € |
| Wall/floor tiling installed (excluding supply), m² | 35 to 90 €/m² |
| Shower waterproofing (complete system), fixed price | 450 to 1,200 € |
| Plumbing/drainage adjustments (typical site fixed price) | 900 to 2,500 € |
| Bathroom electricity (RGIE, points, lighting) | 700 to 1,800 € |
| Heating (towel warmer/floor if possible) | 500 to 2,200 € |
| Complete bathroom renovation 4–6 m² (excluding luxury) | 7,500 to 16,000 € |
| Complete bathroom renovation 7–10 m² (excluding luxury) | 12,000 to 25,000 € |
Note: access (floor/elevator), co-ownership constraints, choice of coverings, and brand of equipment influence the budget.
Materials, quality, compatibility
The best results come from compatible systems from support to finish. We prioritize:
- Continuous waterproofing (shower tray, walls, corners, penetrations) to ensure durability.
- Adhesives & joints suitable (C2S1/S2, waterproof joints), stainless steel/aluminum profiles for edges and corners.
- Certified equipment (Geberit support frames, reliable thermostatic faucets) and Belgian suppliers (Facq, Van Marcke) for quick after-sales service.
- Ventilation sized (VMC, extraction) for healthy walls and fog-free mirrors.
Common issues encountered in Liège
Even a beautiful bathroom can suffer from recurring defects. We address them at the source.
- Leaks and blackened joints: complete overhaul of sealing systems and shower slopes.
- Condensation & odors: recalibrated VMC extraction, flaps, flow adjustments.
- Hard water and limescale: cartridges, filters, choice of finishes and anti-limescale accessories.
- Drain noise: decoupling and acoustically treated technical ducts.
- Insufficient lighting: multiplication of scenes (general + mirror + ambiance) with consistent color temperatures.
The advantages of Avenir Rénovations
Renovating your bathroom with a local team means gaining peace of mind and quality.
- Single point of contact and itemized quotes with clear options.
- Coordination of plumbing/electricity/tiling/carpentry, including in co-ownership.
- Meticulous execution: tested waterproofing, controlled slopes, clean finishes.
- Clean site: protections, waste disposal, daily cleaning of pathways.
- Local after-sales service: adjustments, touch-ups, retained product references.
Urban planning and co-ownership procedures
The interior renovation of a bathroom generally does not require any urban planning procedures.
In co-ownership, certain decisions fall under common areas (drainage column, ventilation, technical ducts): we coordinate access, display, and schedules with the property manager/AG.
In a house, any intervention that would affect the facade (e.g., creating a window, visible VMC) may require a declaration (DUP) or a permit (PU) depending on the municipality.
Grants and access to grants (Wallonia – 2025-2026)
The bathroom as such is not subsidized, but certain technical components of the project may qualify for a grant pathway:
- Ventilation (VMC): eligible under the recommendations of a Housing audit.
- Additional insulation (roof/walls): often eligible if integrated into the overall package recommended by the auditor.
- Efficient heating: power adjustment after envelope work; grants possible depending on technology.
The temporary regime of Housing Grants runs until 30/09/2026. The amounts depend on your income category and the recommendations of the audit. We help you compile the file (quotes, before/during/after photos, technical sheets) when eligible items are involved.
FAQ
Walk-in shower or ultra-flat shower tray: which one to choose?
The walk-in shower offers maximum accessibility and a minimalist look, but requires a perfect slope and impeccable waterproofing. The ultra-flat shower tray simplifies waterproofing and speeds up installation, with very modern finishes. We advise you based on the structure and desired maintenance.
Is a VMC necessary in a small bathroom?
Yes, extraction (suitable flow rate) limits condensation and mold, protects paints and woodwork, and improves comfort. In apartments, we check the drainage column and flaps to avoid odor returns.
Can I keep my bathtub and add a shower?
It is possible if space and drainage allow. We redesign the layout to separate wet and dry areas, ensure slopes, and optimize storage. The budget depends on the level of network adjustments.
Which brands should I choose for durability?
Professional ranges distributed in Belgium (Grohe, Hansgrohe, Geberit, Ideal Standard, Detremmerie, Villeroy & Boch) ensure spare parts availability and reliable customer service. We remain open to your preferences if quality is guaranteed.
How long does a construction project take?
For a bathroom of 4–6 m², expect 7 to 12 working days depending on the level of adjustments (networks, waterproofing, tiling, electricity). We phase to limit disturbances and the duration without water.
Need a specialist for your bathroom in Liège?
Benefit from a clear design, meticulous execution, and a managed schedule by local teams.
Contact Avenir Rénovations Liège to get your detailed quote and transform your bathroom into a sustainable, comfortable, and easy-to-live-in space.
Agency Avenir
Rénovations
for Bathroom renovation in Liège
An expert to take charge of your renovation projects and guarantee deadlines, budgets and quality of all services.
Bathroom renovation in Liège and everywhere in France
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