Drainage Contractors in Bournemouth & Poole

Surface water drainage exists to answer one question: where does the water actually go once it leaves the roof, the drive or the garden. A soakaway or land drain that is guessed rather than sized tends to cope for one winter and then stop, because the ground it is built into behaves differently under sustained rain than it does on a dry day during the quote.

Where a soakaway is being built to serve a house extension, a new driveway or a septic tank, building control generally wants evidence the ground can actually take the water, not an assumption. A percolation test, timed trial pits that measure how fast a plot drains, gives that evidence and sizes the soakaway to match. It is a short site visit rather than a big job, and it is the difference between a soakaway that copes and one that floods the garden again the first wet week it meets.

Garden drainage problems in Bournemouth and Poole rarely come down to rainfall alone. Ground varies from one plot to the next between free-draining sand, clay and made-up ground close to the surface, and what a neighbouring garden does is not proof of what a specific plot will do. That variation is normally the reason a garden floods years after everyone else's stayed dry.

What a drainage job costs depends on what the ground turns out to be once it is opened up: how deep the run needs to go, what is already in the ground, and how much needs digging out and taking away. That is worked out on site rather than over the phone, and priced as a fixed, itemised quote before anything starts. The same team that tests the ground, designs the run and lays the drainage also does the groundwork around it, from sub-base to falls, so nothing gets handed between contractors partway through.