Design & build · Groundworks · Drainage · Structural engineering across South West London & Surrey

AMTA ARGC · Drainage

Drainage Contractors in London

New foul and surface water drainage, inspection chambers and connections, tested for building control.

Storm and foul drainage pipe runs laid alongside a new build in South Norwood, Croydon

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Storm and foul drainage pipe runs laid alongside a new build in South Norwood, Croydon

Overview

Drainage: designed, engineered and built in-house

We are drainage contractors in London installing new foul and surface water systems for extensions, new builds and developments. Every run is laid to the correct falls, bedded properly and tested before backfilling.

We cover 9 councils across South West London and Surrey, and every project is run by one team from survey to sign-off. It is often combined with suds and groundworks.

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What is included

What is included in our drainage service

01

Drainage design

Layouts and levels worked out with our engineers.

02

Excavation

Trenches dug to the right depth and fall.

03

Pipework and chambers

Pipes bedded and inspection chambers built.

04

Testing and connection

Air or water tested, then connected to the sewer or SUDS.

How we work

From first survey to building control sign-off

One team, one point of contact and one programme, from the first site visit to the completion certificate.

01

Survey

We visit, measure up and agree the brief, budget and timescales.

02

Design

Drawings and structural calculations by our own engineers.

03

Planning & building control

Planning or permitted development, building regulations and party wall help.

04

Build

Our site team builds, with one contact throughout.

05

Sign-off

Final inspections, completion certificate and handover.

Types

Types of drainage

SUDS attenuation crates being installed in an excavation in South Norwood, Croydon

Soakaways, attenuation tanks and permeable paving that meet planning conditions.

Recent projects

Recent projects

Costs and timescales

Drainage costs and timescales

Every project is priced after a survey, because ground conditions, structure and finishes vary from house to house. We give you an itemised quote and a written programme, so you know what you are paying for and when each stage happens.

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What affects the price

Areas we cover

Areas we cover for drainage

We work across nine councils in South West London and Surrey. Choose your area to see local projects, planning notes and how we work there.

Richmond, Twickenham, Teddington, Barnes, Kew

Kingston, Surbiton, New Malden, Tolworth

Wimbledon, Merton Park, Raynes Park, Morden, Mitcham

Tooting, Balham, Wandsworth, Putney, Earlsfield

Epsom, Ewell, Stoneleigh

Hounslow, Chiswick, Isleworth, Brentford

Ealing, Acton, Southall, Hanwell

Dulwich, Peckham, Camberwell, Bermondsey

Croydon, Purley, Coulsdon, South Croydon

Related services

Related services

SUDS attenuation crates being installed in an excavation in South Norwood, Croydon

Soakaways, attenuation tanks and permeable paving that meet planning conditions.

FAQs

Drainage FAQs

Straight answers to common questions. See all our FAQs or ask an engineer.

Yes. New drainage is inspected and tested as part of building regulations.

Often yes, with a build-over agreement from Thames Water. We help arrange it.

It depends on size and approvals. We give you a written programme with your quote covering design, approvals and each build stage.

Richmond, Kingston, Merton, Wandsworth, Epsom & Ewell, Hounslow, Ealing, Southwark and Croydon.

Free, no-obligation quote

Get a free quote for drainage

Send a few details and one of our engineers will call you back to arrange a survey. Prefer to talk now? Call 020 3857 3805.