Leak tracing and repair
Inspection from inside the loft and outside on the roof to find the actual source of a leak, followed by targeted repair of tiles, slates, flashing, or membrane rather than a general patch.
Leak tracing, tile and slate replacement, gutter renewal and flat-roof coverings, carried out by roofers who work on Belgian pitched and flat roofs every week.
Roof problems in Mons rarely announce themselves until water reaches a ceiling. Alpha Services inspects pitched and flat roofs, traces leaks to their source rather than patching the symptom, and carries out repair or re-roofing with slate, clay tile, or flat felt and EPDM coverings. We renew gutters, downpipes and chimney flashing, and check loft insulation while access is open, leaving the roof sound for the years ahead.
Inspection from inside the loft and outside on the roof to find the actual source of a leak, followed by targeted repair of tiles, slates, flashing, or membrane rather than a general patch.
Replacement of cracked or missing slates and clay tiles, renewal of battens and underlay where needed, and re-pointing of ridge and hip tiles to keep the pitched roof watertight.
Felt, bitumen, and EPDM membrane installation and repair on extensions, garages and terraces, with attention to falls, upstands and drainage so water does not pool.
Cleaning, repair, and full replacement of gutters, downpipes and gulleys in zinc, aluminium or PVC, sized to cope with the roof area they drain and fitted with secure brackets.
Lead or zinc flashing renewed around chimneys, dormers and roof windows, plus chimney stack repointing and capping to stop water tracking down behind the render or brickwork.
Insulation checks and top-ups between or under rafters while the roof is open, together with ridge or soffit ventilation to reduce condensation risk in the roof void.
Alpha Services fits and repairs slate, clay tile and flat roof coverings on homes across Mons. Valley gutters and parapet junctions on semi-detached houses collect debris and are frequently where a slow leak actually starts. Alpha Services covers Binche, Boussu and Frameries for pitched and flat roof repairs and re-covering work. We check flashing, ridge tiles and gutters together, since one weak point on a roof rarely sits in isolation.
Call 0485 44 55 12 or message us on WhatsApp +32 485 44 55 12 with a description of the problem — a stain on the ceiling, a missing tile, a damp loft — and your address in Mons.
A roofer examines the pitched or flat roof from the loft and, where access allows, from a ladder or platform, checking coverings, flashing, gutters and structural timbers for the cause of the issue.
You receive a quote setting out the repair or renewal work, the materials proposed, and whether the job is a targeted repair or calls for a larger section of the roof to be redone.
Work is carried out with scaffolding or roof ladders as needed, debris is cleared from gutters and the ground, and we walk you through what was replaced before leaving site.
A few projects completed by our team in Mons and nearby.



Indicative Belgian market ranges for 2026 — not an Alpha Services price list. Fixed quote confirmed before work begins.