Skip to main content

Soakaway Installation

Discover More

Soakaway Installation in Cumbria

  • Site survey & feasibility study (soil porosity, groundwater levels, location)

  • Design and dimensioning based on roof/runoff area and local rainfall data

  • Percolation tests (BRE 365 or similar standards)

  • Excavation of soakaway pit(s)

  • Installation of soakaway crates or stone aggregate fill

  • Geotextile membrane and pre-filter / silt trap integration

  • Connection of downpipes / drainage pipes to the soakaway

  • Final backfill, compaction & surface reinstatement

  • Testing and verification of drainage performance

  • Full documentation and sign-off for Building Control

We also provide optional features such as silt trap chambers, inspection ports, and preventative maintenance plans to guard against long-term failure.

Key benefits of a well-designed soakaway:

  • Prevents flooding – Manages excess rainwater during heavy downpours, reducing standing water on drives, patios, and lawns.

  • Reduces sewer overload – Diverts clean rainwater from public sewers, helping prevent localised surcharging and sewer flooding.

  • Supports groundwater recharge – Allows water to filter back into the soil, helping maintain natural water balance and sustainability.

  • Improves property drainage – Keeps your property free from pooling water and protects foundations from prolonged saturation.

  • Complies with SuDS regulations – Encouraged by planning authorities and Environment Agency guidelines for eco-friendly drainage.

  • Low-maintenance and long-lasting – Once installed and filtered properly, soakaways provide decades of efficient water dispersal.

  • Hands-on local expertise — We know Cumbria’s soil types, terrain, and drainage challenges

  • Full system care — From design and testing through installation and verification

  • Compliance assured — We work to Building Regulations (Part H) and environmental rules

  • Transparent quoting — No surprise costs; we show you the plans and numbers ahead

  • Quality materials & techniques — Crate systems, membranes, silt traps, and precision backfill

  • Ongoing support — We offer service plans, maintenance, and inspections

With us, the installation isn’t just done — it’s done right, with long-term performance, minimal headaches, and full compliance in mind.

Areas We Cover

We’re proud to serve customers throughout Cumbria and beyond, including:

If you’re unsure whether we cover your location, just give us a call — our friendly team will be happy to help.

Sustainable Drainage

Frequently asked questions

What is a percolation or soil “soakaway” test?

A percolation test involves digging a small test pit, filling it with water, and measuring how fast the water drains into the surrounding soil. This gives us the infiltration rate, which is crucial for designing the correct soakaway size. If the soil is too impermeable (e.g., clay), alternatives or remediation may be needed.

How far does a soakaway need to be from a building?

Generally, a soakaway should be located at least 5 metres away from any building to prevent undermining foundations. In some situations (sloping ground, marginal soils), greater separations may be required.

Can soakaways work under driveways or drive over areas?

Yes — but only if designed with structural strength in mind. Soakaway crates or modules need adequate cover and load-bearing capacity. The system design must account for vehicle loads to prevent collapse or compaction.

Do soakaways ever fail?

Yes — especially if silt, debris or soil particles clog the system over time. Without proper pre-filtration or maintenance, the soakaway’s absorption capacity may degrade, causing backups or overflow. Many such failures can be prevented with integrated silt traps and periodic inspection.

How much does soakaway installation cost?

Costs vary depending on depth, soil permeability, site access, crate or aggregate choice, and excavation complexity.

Do I need planning permission to install a soakaway?

For rainwater soakaways, you normally don’t need planning permission, though you will need to comply with Building Regulations (Part H). For foul drainage soakaways, they are often replaced by requirements for drainage fields and stricter standards under modern regulations.

Get Your Free Quote