Soakaway installation | Mainline Groundworks
Soakaways dispose of surface water by infiltration.
Soakaways dispose of surface water by infiltration. They are often used where connection to the main drain is not possible or preferred. We install to design with the correct size and connections.
What this service includes
- New build surface water
- Driveway and hardstanding drainage
- Extension and roof drainage
- SuDS and attenuation
- Surface water to dispose of
Typical costs
Small domestic soakaway
£1,500–£4,000 + VAT
Typical crate or rubble install to design.
Larger residential / light commercial
£4,000–£12,000 + VAT
Bigger drained area, deeper dig, more connections.
Attenuation / SuDS-linked scope
£12,000+ + VAT
Storage, flow control and adoption requirements.
When you need this
- Surface water to dispose of
- No or limited connection to main drain
- Percolation test may be needed
- Planning or building control conditions
- Adoption or maintenance
Ready to install surface water disposal?
Get a clear quote for soakaway installation with commissioning and documentation for building control or adoption.
Related local services
Get a groundworks quote today
Fast response from local specialists. No obligation.