Insulate Better.
Live Better.
Professional roof and external wall insulation for a warmer, more energy-efficient and sustainable home.
Roof Insulation • External Wall Insulation • Energy Renovation
Our Services
Two upgrades that change how your home performs.
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.
- Reduces heat loss through the roof
- Lowers energy bills
- Improves thermal comfort all year
- Better protection against summer heat
- Reduces environmental impact
- Increases property value
External Wall Insulation
External facade insulation is both an energy upgrade and an architectural transformation: the whole envelope is wrapped, and the house gets a new, durable finish.
- Improved thermal performance
- Fewer thermal bridges
- Lasting weather protection
- A renewed facade appearance
- Lower heating consumption
- Long-term protection of the building
Why insulation matters.
The building envelope decides how much energy a house needs. Insulating the roof and the walls is the most direct way to bring that demand down.
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
One team for the whole building envelope, with the care of a specialist.
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.
Roof and facade expertise
Both parts of the envelope from one team, so the details connect properly.
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.
From dated to durable.
Drag the handle to see how external wall insulation and a new facade finish transform an older Belgian house.
Our Projects
Roofs, facades and the details in between.
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. Few renovations pay back in comfort every day and in energy every month.
- Less heating and cooling energy
- Fewer emissions for the lifetime of the house
- Durable materials with a long service life
- Comfort in every season
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
- 01We call you back to discuss your project.
- 02We visit the property for a professional assessment.
- 03You receive a clear, itemised proposal.
Thank you, your request is ready to send.
Your email program has opened with the request prefilled. Send it and we will contact you personally to plan a site assessment. Prefer to talk now? Call us on +32 470 00 00 00.