Drainage Installation · Essex

Drainage Installation, Soakaways & Attenuation Systems

Flowtech installs complete drainage systems for new developments, extensions, commercial sites and infrastructure projects across Essex. Foul drainage, surface water, soakaways and attenuation, installed to your approved drawings by a team with more than 20 years in the trade.

20+ years in the trade

Emergency call-outs

Domestic & Commercial

Fully insured

What we install

Drainage systems installed to your drawings

Your engineer or architect designs the system. We set it out, dig it, lay it and connect it, so the drainage that goes in the ground matches what was approved.

Drainage Installations

New below-ground drainage runs, inspection chambers, gullies and connections for new builds, extensions and site developments.

Foul & Surface Water Drainage

Separate foul and surface water systems laid to the falls, routes and connection points shown on your drawings.

Soakaways & Attenuation Systems

Soakaways and attenuation tanks installed to manage rainwater on site, sized and positioned as your drainage design specifies.

Projects we work on

From single extensions to commercial sites

New Builds & Developments

Full below-ground drainage for single new homes and multi-plot developments, working alongside the main contractor's programme.

Extensions & Renovations

Rerouting existing drains and installing new runs where an extension, conversion or renovation changes the layout of a property.

Commercial & Industrial Sites

Drainage for commercial units, yards and car parks, including surface water systems for large hard-standing areas.

Infrastructure Projects

Drainage installation as part of wider infrastructure and civil works, delivered to the project specification.

Working with your project team

We build what has been approved

We don't design drainage. We install it, and we install it properly. Every job is built to the engineer's or architect's approved drawings, so there are no surprises when it comes to sign-off.

If something on site doesn't match the drawings, such as an existing drain in an unexpected place or a level that won't work, we raise it with you and your designer before going any further. That saves time, money and arguments later in the build.

Get in touch

Groundworks included

Excavation handled by the same team

Every drainage installation starts with a dig. We carry out our own excavation, so there's no waiting for a separate groundworks contractor. We can also take on the footings, bases and slabs your project needs.

Groundworks & Excavation

Managing surface water

Soakaways and attenuation explained

A soakaway collects rainwater from roofs and hard surfaces and lets it soak gradually into the surrounding ground. It works well where the ground drains freely.

Where the ground doesn't drain well, or where water can't be released quickly, an attenuation system stores rainwater in an underground tank or crate system and releases it slowly at a controlled rate.

Which one your project needs is set by your drainage design, based on the ground conditions and what your local authority requires. We install whichever system your drawings specify.

Related services

More from Flowtech

Groundworks & Excavation

Excavation, footings, bases and slabs for builders and homeowners.

Find out more

Drain Surveys, Repairs & Relining

CCTV surveys of existing drains to check their condition before you connect new work to them.

Find out more

Drain Unblocking & Cleaning

Jetting and planned maintenance to keep new and existing systems running clear.

Find out more

Areas we cover

Drainage installation across Essex

We're based in Benfleet and install drainage systems for builders, developers, businesses and homeowners anywhere in Essex.

See areas we cover

Get in touch

Send us your drawings for a quote

Tell us about your project and attach your drainage drawings if you have them. Darren will review the details and get back to you with a quote.

Call us now on:

0800 246 5109

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Drainage installation questions

Do you design drainage systems?

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No. We install drainage to the approved drawings produced by your engineer or architect. If you don't have drawings yet, talk to us and we'll explain what you'll need before work can start.

What's the difference between foul and surface water drainage?

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Foul drainage carries waste water from toilets, sinks, showers and appliances. Surface water drainage carries rainwater from roofs, driveways and other hard surfaces. The two are usually kept separate, and your drawings will show where each one connects.

Do I need a soakaway or an attenuation tank?

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It depends on your ground conditions and what your local authority requires. A soakaway suits ground that drains well. An attenuation system is used where water needs to be stored and released slowly. Your drainage design will specify which one, and we install it.

Do you work for homeowners or only builders?

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Both. We install drainage for homeowners having extensions or renovations, as well as for builders, developers and commercial clients.

Do you carry out the excavation as well?

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Yes. We do our own excavation and groundworks, so the same team handles the dig and the drainage. We can also take on footings, bases and slabs.

What areas do you cover?

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We're based in Benfleet and install drainage anywhere in Essex.

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