Insulate better.
Live better.
Professional roof and external wall insulation for a warmer, more energy-efficient and sustainable home.
Chapter one
Roof Insulation
The roof is usually the largest surface of a house exposed to the outside. Insulating it is the most effective first step.
Explore Roof Insulation
A large share of a home's heat escapes through an uninsulated roof. Professional roof insulation closes that gap with a continuous, correctly detailed insulation layer between and under the rafters, a vapour control layer on the warm side and a clean finish.
- 01Reduces heat loss through the roof
- 02Lowers energy bills
- 03Improves thermal comfort all year
- 04Better protection against summer heat
- 05Reduces environmental impact
- 06Increases property value
Chapter two
External Wall Insulation
An energy upgrade and an architectural transformation in one.
Explore External Wall Insulation
Insulation boards on the outside of the existing walls, a reinforced base coat, and a finish of render, brick slips or cladding. The whole envelope is wrapped and the house gets a new, durable facade.
- 01Improved thermal performance
- 02Fewer thermal bridges
- 03Lasting weather protection
- 04A renewed facade appearance
- 05Lower heating consumption
- 06Long-term protection of the building
Why insulation matters
The envelope decides the energy demand.
Less
Heat Loss
A continuous insulation layer keeps warmth inside in winter and heat outside in summer.
Lower
Energy Consumption
Your heating system works less to reach and hold the same temperature.
Greater
Indoor Comfort
Stable room temperatures, fewer cold surfaces and draughts, a quieter home.
Smaller
Environmental Footprint
Less energy used means fewer emissions, every single year.
Why choose ASL BOUW BV
Specialists, not generalists.
- Professional workmanship
- Experienced crews who install every layer the way the system requires.
- High-quality insulation materials
- Proven mineral wool, PIR, EPS and wood fibre systems from established manufacturers.
- Careful finishing
- Clean reveals, straight edges and details you will not have to look at twice.
- Solutions adapted to each property
- Every roof and facade is assessed on site before we recommend a system.
- Energy-efficiency focused
- We design for the lowest realistic energy demand of your home.
- Reliable project execution
- Clear planning, one point of contact and a site left tidy every day.
Our process
From first visit to final inspection.
- 01
Site Assessment
We inspect the building and determine the most suitable insulation solution.
- 02
Technical Proposal
We recommend the correct insulation system, materials and finishing.
- 03
Professional Installation
Our team carries out the insulation work carefully and efficiently.
- 04
Final Inspection
We verify the installation and finishing before completing the project.
Before and after
From dated to durable.
Drag the handle to see how external wall insulation and a new facade finish transform an older Belgian house.
Portfolio
Our Projects
Sustainability
Better insulation. Lower energy demand. A more sustainable home.
High-quality insulation removes unnecessary energy consumption year after year, while keeping the house comfortable in winter and summer.
Free quote
Request Your Free Quote
Tell us about your roof or facade. We come back to you with personal advice and a clear proposal, without obligation.
- +32 470 00 00 00
- info@aslbouw.be
- Active throughout Belgium
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