Drainage Services in Amersham

Amersham splits neatly into the historic Old Town along the River Misbourne and the Metroland-era hilltop town built after the railway arrived in the 1890s. Old Town properties sit on clay in the valley bottom with older brick-and-clay combined drainage, while the hilltop area's inter-war semis and later estates run on Chiltern chalk with generally better natural drainage and largely separate systems, increasingly plastic pipe in modern extensions.

The Misbourne is a chalk stream prone to running dry in low-rainfall years and rising after wet winters, and groundwater levels in the valley can affect older surface water drains near the river. Surrounding villages such as Coleshill and parts of Chalfont St Giles still have properties on septic tanks or small treatment plants where they sit beyond the mains network, requiring periodic desludging.

We use CCTV survey to establish which era of drainage a property has before recommending work, since Old Town and hilltop properties can differ significantly. Jetting clears blockages from root ingress and clay pipe silt build-up, no-dig relining repairs cracks or displaced joints with minimal disruption, and for septic tank properties we offer percolation testing to confirm the drainage field is coping.