
Projects / Lier
Project · Lier · 08/2023 Lier
Renovation in Lier – brick slip façade, flat roof, windows and PIR insulation for an energy-efficient, comfortable home
- 54days of work
- 230 m²of façade surface
- 12 cmPIR insulation
54days of work
230 m²of façade surface
12 cmPIR insulation

The project Brick slip façade, flat roof, windows and PIR insulation
A full renovation with grants and subsidies. This project shows our experience with brick slips, façade insulation, flat roofs and window replacement. We also guided the client through the grant and subsidy applications.
- Brick slip façade on 12 cm PIR to ETICS standards
- Replacement of the flat roof with insulation
- Energy-efficient PVC windows
What we carried out
Brick slip façade on 12 cm PIR to ETICS standards
- 230 m² of brick slips professionally installed
- 12 cm of PIR insulation for optimal thermal performance
- Profiles and junctions to ETICS standards
- Granite/quartz plinth for a durable finish
- Watertight finish against moisture
- Excellent EPC score thanks to professional insulation
The combination of brick slips and 12 cm of PIR insulation gives a beautiful classic look and maximum energy efficiency. All work was carried out to the strictest ETICS standards.
Replacement of the flat roof with insulation
- Complete replacement of the flat roof
- New roof insulation for better thermal performance
- Roof edge profiles for a neat finish
- Watertight finish in EPDM or bitumen
- No more heat loss through the roof
Energy-efficient PVC windows
- High-quality PVC windows
- Double glazing for optimal insulation
- A major improvement in energy efficiency
- Considerably less outside noise
- Lower heating costs
- Window sills in blue stone and anthracite aluminium
- A better EPC score
The result What the renovation delivered.
A warm home
Thanks to 12 cm of PIR insulation and new windows, the home is optimally insulated and comfortably warm.
Less noise
New PVC windows with double glazing keep outside noise out.
Less damp
The watertight finish of façade and roof prevents damp problems and mould.
Lower energy costs
Better insulation and new windows bring a much lower heating bill.
Grants and subsidies
We helped the client with the grant applications — so he also saved on the investment.
A satisfied client
The client is very satisfied with the result and the professional guidance.

A complete transformation in 54 days: from an old façade and an old roof to a beautifully renovated home with brick slips, new windows and a new flat roof. The client now lives warm, quiet and dry — with lower energy costs and grants.
Grava GroupProject in Lier
Photos of the project Lier in pictures.
5 photos — click to enlarge.





Frequently asked questions About this project.
How long did this renovation take?
54 days for 230 m² of brick slips on insulation, a new flat roof and new PVC windows.
Do you help with grants?
Yes, we guide you through the grant applications for façade insulation, windows and roof insulation.
Why the windows first?
Old windows cause the greatest heat loss; new windows maximise the effect of the façade insulation.
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- Phone
- +32 333 20 630
- leads@gravagroup.be
- Address
- Sneeuwbeslaan 14, 2610 Wilrijk
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