
Services
Flat roof waterproofing
Flat roofs, terraces and extensions: EPDM, bitumen felt or liquid resin.
What this covers
On a flat roof, the water almost never gets in where the stain appears. It travels between the waterproofing and the deck, sometimes for several metres, before passing through at the first weak point. That is why a blind repair with mastic makes things worse eight times out of ten: it moves the problem without treating it.
- Methodical leak tracing by flood testing zone by zone
- EPDM in a single piece, torch-on bitumen felt or liquid resin
- Waterproofing upstands rebuilt to the required height
- Outlets and overflows resized, with balloon gratings
- Insulation probed: if waterlogged it is replaced, not covered over
- Time-stamped photo report, usable by the insurer or the managing agent

On site
Seen up close
A roof is judged on its details: the junctions, the overlaps, the penetrations. This is the point of workmanship that, on this service, makes the difference between a roof that lasts ten years and one that lasts thirty.
Corner detail of a flat roof: EPDM against the parapet, termination bar and leaf-guard outlet
Free quoteHow the job runs
- 01
Tracing
Flood testing zone by zone until the entry point is located.
- 02
Diagnosis
Probing the insulation and surveying the actual falls.
- 03
Renewal
Stripping, repairs to the deck, laying the waterproofing build-up.
- 04
Final test
A second flood test and handover of the photo report.
Common questions
Flat roof waterproofing
A question that is not on the list? Ask it over the phone, the answer is free too.
EPDM is laid in a single piece, with no seams across the field of the roof, and lasts thirty to fifty years if it is laid properly: it is the logical choice for an extension or a terrace of normal size. Torch-on bitumen felt still makes sense on large areas and complicated decks. The deck and the actual falls decide, not the catalogue.
Not always. If the deck is sound and the insulation dry, an overlay is possible and costs considerably less. We always probe the insulation: covering over waterlogged insulation means shutting the problem in for ten years.
Yes, and it is often the best first step. We locate the source, give you a time-stamped photo report and a quotation for the repair. Nothing obliges you to give us the work afterwards.
Where we carry out this service
Flat roof waterproofing — 24 communes
Choose your municipality: each page describes what this service involves locally, given the building stock and the surroundings.
- flat roof waterproofing in Tienen
- flat roof waterproofing in Grimbergen
- flat roof waterproofing in Vilvoorde
- flat roof waterproofing in Zaventem
- flat roof waterproofing in Machelen
- flat roof waterproofing in Brussels
- flat roof waterproofing in Schaerbeek
- flat roof waterproofing in Anderlecht
- flat roof waterproofing in Ixelles
- flat roof waterproofing in Uccle
- flat roof waterproofing in Molenbeek-Saint-Jean
- flat roof waterproofing in Jette
- flat roof waterproofing in Evere
- flat roof waterproofing in Woluwe-Saint-Lambert
- flat roof waterproofing in Forest
- flat roof waterproofing in Leuven
- flat roof waterproofing in Halle
- flat roof waterproofing in Dilbeek
- flat roof waterproofing in Asse
- flat roof waterproofing in Meise
- flat roof waterproofing in Overijse
- flat roof waterproofing in Kraainem
- flat roof waterproofing in Wezembeek-Oppem
- flat roof waterproofing in Landen
Free quote
A quotation for this service
Describe your situation in a few lines. We come and look, and you receive a detailed quotation within 24 working hours.
Our services
Everything that protects your house
From routine cleaning to complete renewal: one point of contact, from the first survey to handover of the job.

Roof covering & renovation
New roofs, renovation and repair: tiles, slates, natural slates and zinc.
Read more
Zinc work & gutters
Hanging gutters, box gutters, downpipes, valleys and flashings in zinc or aluminium.
Read more
Cleaning & moss removal
Moss removal by hand, brushing, anti-moss treatment and low-pressure rinsing.
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Water-repellent treatment & coating
Clear or coloured water repellent for porous tiles and facades.
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Roof insulation
Insulation of pitched roofs and lofts, from the inside or as sarking.
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Roof structure & framing
Repairs to rafters, purlins and verges, timber treatment included.
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Asbestos removal
Removal of asbestos fibre cement sheets and roofs, with traceable disposal.
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Facade renovation & cleaning
Cleaning, repointing, water repellent and facade render.
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Damp treatment
Diagnosis and treatment of rising damp, penetrating damp and condensation.
Read more
Not sure about your roof?
The visit costs nothing and the quotation follows within 24 hours. One call is enough to know where you stand.

