Drainage for tarmac drives in the West Midlands

How much does tarmac driveway drainage cost in the West Midlands?

Rates in the West Midlands follow the West Midlands, in line with our UK midpoint.

Item	Guide price (inc VAT)
Linear drainage channel	£60–£120 per metre
Soakaway or crate unit	£650–£2,000 each

Towns we cover in the West Midlands

Postcode areas: B, CV, DY, WS, WV.

What is included?

Driveway drainage is the plan for where rainwater goes once it hits a sealed tarmac surface: the falls that move it, the channels or gullies that catch it, and the soakaway, border or approved drain that takes it away.

Falls set across the drive, typically 1 in 60 to 1 in 80
Linear channel at garages, doors or the bottom of a slope
Soakaway or crate unit sized to the area and ground
Runoff directed to borders or a permeable strip
Connection to an existing surface-water drain where allowed
No connection to the foul sewer

Rules in the West Midlands

In England, a new hard surface over 5 m² in front of a house needs planning permission unless it is porous or drains to a lawn, border or soakaway within the property. A vehicle crossing over the footway is a separate approval, from the highway authority (the county or unitary council).