Local drainage specialists in Farnham
Local ground & drainage conditions
Farnham sits almost exactly on the boundary between the free-draining Folkestone Formation sands (Lower Greensand) to the south and the Gault Clay to the north, with the River Wey along the junction. The result is a genuine sand-versus-clay mosaic: greensand and gravel areas percolate well and suit soakaways, while gault clay and the silty alluvium on the Wey valley floor hold water, shrink and swell, and crack older drains.
Farnham's housing & pipework
Farnham's core is exceptional Georgian red-brick around Castle Street, West Street and The Borough, built over earlier timber-framed stock, so the oldest drains are typically salt-glazed Victorian/Edwardian clay laid after the 1848 railway expansion. Hale, Heath End, Wrecclesham and Badshot Lea added interwar and 1950s-70s estate housing (clay and pitch-fibre runs), with modern PVCu only on recent developments.
Common drainage problems in Farnham
- Cracked and root-displaced joints in salt-glazed clay drains under the Georgian and Victorian streets, worsened by mature street trees and shrink-swell movement on the gault clay and Wey alluvium
- Failing or under-sized soakaways dug into clay or alluvium rather than the free-draining greensand, causing waterlogging and surface flooding
- Collapsing or blistered pitch-fibre laterals on the interwar and post-war estates in Hale, Heath End and Wrecclesham
Drain surveys and repairs in Farnham
We carry out CCTV drain surveys for homebuyers, landlords, insurers and builders across Farnham GU9 and GU10, from Castle Street to Hale, Heath End and Wrecclesham. Tell us why you need the inspection so we can agree the accessible drainage to inspect and whether you need footage, a written WRc MSCC5 coded condition report or a drainage drawing. A brief camera look-see has a different scope from a reporting survey.
Clever Works carries out drain repairs in Farnham after investigating the fault rather than guessing at it. We use a CCTV drainage survey, with WRc MSCC5 coded reporting where the scope calls for it, to locate and record the defect before recommending a repair.
The right repair depends on the location, condition and extent of the damage. That covers targeted drain repairs and no-dig relining where the pipe and access conditions suit it, and high-pressure water jetting where a blockage or build-up has to be cleared before the drain can be assessed properly.
We are based in Farnham, so if you have a drain fault to investigate or repair, contact us to talk it through and arrange the next step.
Areas of Farnham we cover
Our services in Farnham
Drainage FAQs for Farnham
Will a soakaway work at my property in Farnham?
It depends which side of the Greensand/Gault Clay boundary you're on. On the free-draining greensand south of the Wey, soakaways usually perform well; on the gault clay and Wey-valley alluvium they often fail. We carry out a BRE365 percolation test on site rather than assuming, because results genuinely swing across the town.
How quickly can you get to Farnham?
Call us with your postcode and we will confirm availability. Appointment dates depend on the work and access required; tell us about any purchase or building-work deadline before booking.
Do you charge a call-out fee?
No. We provide fixed, transparent pricing for all our services, so you know exactly what you'll pay before we start any work.
Are your CCTV survey reports coded to WRc MSCC5?
Where your quotation includes a written CCTV condition report, findings are coded to WRc MSCC5. Agree the footage, reporting standard and drainage drawing required before booking. If an architect, insurer, lender or sewerage undertaker will use the report, share their requirements first; a brief camera look-see has a different scope.
Request a callback
Tell us about your drainage issue in Farnham and our team will get straight back to you.

