Roof Drainage inDundee, Perth & Tayside —Water Goes Where It Should.
Downpipes, gullies, soakaways and rainwater discharge put right by qualified roofers. We diagnose the actual cause of pooling, flooding and damp — and fix it with the correct hydraulic spec, not a patch.
Diagnostic survey · Written quotes · Fully insured
Roof Drainage — what it covers and when it's right.
Roof drainage is everything that moves water from the gutters to the ground drain or soakaway — downpipes, shoes, gullies, rainwater hoppers, and the connection to the foul or surface water system. When it blocks or fails, water backs up into the gutter and finds its way down the wall.
Anyone with persistent damp at the wall base, water staining on render, blocked downpipes, overflowing gullies or unexplained subsidence concerns near downpipe terminations.
After any planting or driveway work that might have disturbed buried drainage. After flooding events.
Drainage diagnosis isn't always obvious — sometimes the problem is 6m of buried clay pipe collapsed under a driveway, sometimes it's a hopper bracket that's failed, sometimes the original installer never connected the downpipe to anything. CCTV inspection and pressure testing tell us what's actually happening underground.
The cost of ignoring it always exceeds the cost of fixing it.
Foundation saturation
Persistent water at the wall base on Tayside clay soils causes heave and subsidence — five-figure structural repair territory.
External damp
Backed-up downpipes overflow at every joint, saturating the wall behind.
Driveway and garden flooding
Disconnected or collapsed drainage pushes hundreds of litres into the wrong place during heavy rain.
Internal damp at ground floor
Tracked through brickwork from a failed downpipe — diagnosed as 'rising damp' and treated wrongly for years.
Insurance refusals
Subsidence claims routinely refused where drainage failure is provable and was 'reasonably observable'.
Common mistakes we get called to fix
Most of these started as someone trying to save a few hundred pounds.
- Replacing the downpipe without checking the buried drain it connects to
- Routing rainwater into the foul drain in violation of building regs (and SEPA rules)
- Soakaways too small or too close to the building
- Ignoring failed hopper brackets — gravity wins eventually
- DIY soakaway dug into clay (no infiltration, useless)
A five-step system — no surprises.
Step 1 — Diagnostic survey
Visual inspection, water flow testing, CCTV of buried sections where needed. We diagnose the actual fault, not the symptom.
Step 2 — Written quote
Itemised: scope, materials, excavation if required, reinstatement. Written quote.
Step 3 — Above-ground works
Downpipe replacement, hopper renewal, shoe and gully renewal — same-day where above ground.
Step 4 — Below-ground works
Excavation, broken pipe replacement, soakaway construction or rainwater connection to surface water system.
Step 5 — Test, reinstate, sign-off
Hydraulic test, full backfill and reinstatement of paving/grass.
What you actually get when you hire Rossi.
Diagnosis, not guesswork
We find the actual fault before we quote. No 'might be this' — proven by camera or flow test.
Compliant with regs
Rainwater discharged correctly — surface water system or compliant soakaway, never foul drain.
Stops damp at source
Fix the drainage, fix the damp. No more painting damp-proof paint over a never-ending water source.
Protects foundations
Critical on Tayside clay subsoils where saturation drives heave and subsidence.
Reinstatement included
Driveway, paving and grass reinstated to match — we don't leave you with a trench.
The materials, methods and variations behind roof drainage.
Drainage problems usually present as damp inside the house. The skill is tracing them back to the actual fault — often metres of buried pipe between a downpipe shoe and a soakaway. Here's the work.
Materials we use
- Floplast and Marley round and square downpipes — 65mm and 110mm
- Cast aluminium downpipes (Alumasc, Rainclear) for heritage spec
- 110mm clay and PVC underground drainage to BS EN 1401
- Crate soakaway systems (Wavin Aquacell, Polypipe Polystorm) for properties with no rainwater connection
- Heavy-duty PVC gullies, bottle gullies and yard gullies for ground-level termination
- Hopper heads and rainwater diverters for water-butt connections
Methods we follow
- CCTV survey of buried drainage to locate breaks, root ingress and offsets
- Hydraulic flow test to confirm capacity and identify backing-up
- Excavation and pipe replacement to BS EN 752 falls (1:40 typical for 110mm)
- Soakaway construction sized to BRE Digest 365 — based on infiltration test and roof catchment area
- Connection to existing surface water network where one exists
- Rainwater harvesting integration (water-butt diverters and below-ground tanks)
Variations of this service
Downpipe replacement
Above-ground replacement of failed or undersized downpipes. Standard scope, 1-day job.
Buried drain repair
Excavation and replacement of collapsed or root-blocked underground sections.
Soakaway installation
For properties with no surface water connection. Crate systems sized for the roof catchment.
Hopper and rainwater head
Decorative cast hoppers for heritage properties; functional plastic hoppers for combined gutter discharges.
Rainwater harvesting
Diverters and below-ground tanks feeding garden or grey-water systems.
When it applies
Typical situations we're called for across Tayside and Fife.
- Persistent external wall damp
- Pooling water at the building base
- Subsidence concerns near downpipes
- Driveway flooding during heavy rain
- Pre-extension drainage strategy and Building Standards compliance
Residential vs commercial
Domestic drainage rarely needs more than a day's excavation. Commercial drainage often involves attenuation tanks, oil interceptors and SUDS compliance — all within our scope, with civils partner involvement where required.
Answers, in plain English.
Something not covered? Phone 01738 260550 — answered by a roofer.
Every job is different — call us on 01738 260550 or send a quick message and we'll give you a written, no-obligation quote.
Often booked alongside roof drainage.
- Guttering
Repaired or fully replaced — no more overflows or damp walls.
- Fascias & Soffits
uPVC fascias, soffits and bargeboards — clean lines, zero rot.
- Roof Repairs
Fast, made-good repairs that stop leaks and protect your home.
Roof Drainage across Tayside & Fife.
Same service, same standards, same care in every town we cover.
Not sure if we cover you? Ask us
Get a written quote for roof drainage — free, no obligation.
Free inspection as soon as we can. Written quote usually the same day as the visit. Phone answered by a roofer — no call centre, no chasing.