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Proofterior
Proofterior surveyor checking external drainage and ground levels
Specialist service

Drainage and Ground Water Management

A surprising proportion of internal damp is a drainage defect outside.

Covering Dorset · Hampshire · Wiltshire

Book a survey for this issue

1/3

Takes under a minute. A qualified surveyor attends — never a salesperson.

What are you seeing in the property?

No obligation, no sales visit. Your details are used only to arrange the survey.

The problem

A cracked gully discharging beside a wall, a downpipe running behind a rendered plinth, a patio laid to fall towards the house — these put far more water into masonry than weather ever will, and they are cheap to fix once identified.

We check the external water management as standard on every survey, and carry out the drainage and ground-level work needed to keep water away from the building.

Proofterior technician at work
How we handle it

From first reading to registered guarantee

The same five stages on every job, whether it is one wall or a whole property.

  1. 01

    External water audit

    Gutters, downpipes, gullies, thresholds, paving falls and ground levels inspected together.

  2. 02

    Test and trace

    Flow testing and, where required, camera survey to find blockages and defects.

  3. 03

    Correct the falls

    Paving relaid, drainage margins formed and levels reduced away from the wall.

  4. 04

    Repair the drainage

    Gullies, channels, downpipe connections and soakaways repaired or renewed.

  5. 05

    Confirm internally

    Internal readings monitored to verify the wall is drying after correction.

What is included

Everything this specification can cover

Your quotation lists only what your property needs. Anything not required is simply not on it.

Proofterior surveyor checking external drainage and ground levels
  • External drainage and ground-level survey
  • Gully, channel and downpipe repair
  • Linear drainage and French drain installation
  • Drainage margin formation along walls
  • Paving relaying and level reduction
  • Soakaway repair and renewal
Questions

Drainage and Ground Water — answered

Very commonly. If paving sits above the internal floor level it bridges the damp-proof course, and moisture goes straight into the wall above it.

A clear gravel-filled strip along the base of the wall that lets water drain away and keeps splashback and soil off the masonry.

Where a blockage or a suspected defective run needs confirming, yes.

Proofterior surveyor checking external drainage and ground levels
Complimentary survey

Get a written diagnosis before anyone quotes for drainage and ground water

A qualified surveyor attends, tests properly and writes it down. No obligation, no sales visit, no charge.

Dorset · Hampshire · Wiltshire