Worried that your resin driveway surfacing will puddle after a heavy downpour, or that surface water will run towards your house instead of away from it? In the West Country, drainage needs to be designed in from the start, not added as an afterthought once the driveway is already down.
Resin Driveway Experts has installed and maintained resin bound surfacing across Devon, Cornwall, Somerset and Dorset for more than 30 years, all backed by a 10-year guarantee. This guide walks you through the drainage options we use, how we get falls and subbase specification right, what maintenance keeps a system working, and how it all fits with SuDS and local authority expectations.
The South West gets some of the highest rainfall totals in England, and sudden, intense storms are common. If surface water cannot escape quickly, you end up with standing water that shortens the life of surface edges, encourages algae and mud staining, and can work its way into the subbase layers underneath. Poorly controlled run-off can also cause issues for neighbours and the highway, which brings SuDS and local authority rules into the conversation.
Good drainage protects the resin surface, reduces freeze and thaw movement in winter, and helps you meet SuDS principles and the expectations most local authorities now have for residential drives. Once you understand the options, the practical steps are straightforward.
There are several proven ways to manage water on a resin driveway, and we often combine two or more for a robust result.
Linear, slot or channel drains sit flush with the resin and collect surface run-off, feeding it to an outfall or soakaway. They work best at the bottom of slopes, next to garage doors, and where a driveway meets a public footway. The main thing to check is that the channel connects to a proper outfall, such as a soakaway, highway gulley, or existing drainage network with the right consent.
Perimeter channels run along the outer edge of the surface rather than through the middle, so they are less visually intrusive. They are especially useful for directing water around planted borders, steps and patios, and pair well with a slightly recessed kerb or slotted edging to stop water creeping under the edge restraint.
A soakaway collects water from linear drains or downpipes and disperses it into the subsoil, provided ground conditions allow percolation. In the heavier clay soils found inland across Devon and Somerset, you may need a larger or lined soakaway, or an attenuation system to hold water temporarily and release it slowly. A simple percolation test on site will confirm whether a soakaway is feasible for your garden.
A resin bound driveway is inherently permeable when it is laid over a suitable open-graded subbase, which is one of the reasons it suits SuDS-minded schemes so well: rain can soak through the surface rather than run off it. That permeability depends on the whole build-up, not just the resin layer, so subbase specification is just as important as the finish you see.
You can add resin overlays on top of tarmac, concrete or other existing bases, but drainage has to be addressed before overlaying, not afterwards. Water trapped beneath a new resin layer will cause it to fail over time. On every retrofit we survey the existing falls, check for saturated layers, and test any existing gullies and outfalls before deciding whether to build in a permeable solution or install discreet channels and outlets.
Where the existing edge restraints are damaged, we replace or repair them as part of the job, since a weak edge lets water migrate sideways under the new surface and undermines the whole system.
Proper falls and a correctly specified subbase are the real foundation of good drainage, well before you get to channels or soakaways. Steady falls of one to two degrees are usually enough to carry water to a channel or the verge, and on longer driveways we plan a series of shallow falls so water is managed consistently along the whole run. We specify a free-draining, mechanically compacted subbase based on your soil type and the loads the driveway needs to carry, since an open-graded subbase reduces retained water and supports the permeability of the resin above it.
Resin surfaces are low maintenance, but drainage still needs a little attention to keep performing well. Clear leaves and soil out of channels and gullies after storms and during autumn, and check that linear drains are discharging freely into soakaways or gulleys rather than sitting silted up. An occasional gentle power wash lifts algae and general grime without displacing the jointing or edge haunches, and our guide to Battling Moss & Algae on Resin Driveways covers this in more depth.
We also recommend an annual visual check of the subbase edges and channel grilles, more often if trees overhang the driveway. For general upkeep, our resin cleaning service can help keep everything looking its best.
Local authorities across Devon, Cornwall, Somerset and Dorset increasingly expect residential schemes to follow SuDS principles: manage rain where it falls, reduce run-off rates, and avoid discharging untreated water onto the highway. For most driveways, a combination of permeable resin, a soakaway and controlled linear discharge meets these expectations comfortably. Where a connection to a highway drain genuinely is required, we handle the necessary consents and design to the relevant standards, including routing flows through a trapped chamber or silt interceptor to protect the public system.
On every project we carry out a site-specific drainage assessment, including soil checks, fall measurements and a visual inspection of neighbouring drainage. On a sloping property in Newton Abbot, for example, we installed a stainless steel linear channel at the lower edge, ran it into a lined soakaway beneath a planted border, and compacted an open-graded subbase to maintain permeability. In coastal spots near Torquay, where garden space was tighter, we used shallow perimeter channels and a pumped attenuation chamber instead of direct infiltration.
We document the chosen drainage route, install to manufacturer and local authority guidance, and include the drainage measures within our 10-year guarantee, so if a failure ever occurs because of installation, we carry the responsibility.
Beyond the drainage itself, a well-planned resin driveway is also a long-term asset. If you are weighing up the wider case for switching, our piece on whether Do Resin Driveways Add Value to Your Home? is a useful companion read.
Here are a few recent resin driveways where drainage and design have been planned in together from the start.
If you would like a site-specific drainage recommendation for your driveway, get in touch with Resin Driveway Experts on 01626 248768 or hello@resindrivewayexperts.co.uk. We carry out free, no-obligation surveys across Devon, Cornwall, Somerset and Dorset, and every project comes with a written plan showing channels, soakaway locations and any permissions required, backed by our 10-year guarantee.
Not always as a separate system, since a correctly laid resin bound surface is permeable in its own right. But on sloping sites, clay soils, or driveways that sit close to a house or the highway, additional drainage such as a linear drain or soakaway is usually the safer choice.
The main one is that performance depends entirely on getting the installation right: falls, subbase and edge restraints all need to be specified correctly, which is why professional installation matters more than it might for a simpler surface. Done properly, a resin bound driveway is durable, low maintenance and permeable.
A free-draining, mechanically compacted subbase, specified according to your ground conditions and the loads the driveway needs to carry. This is what allows water to pass through the resin layer above and keeps the whole system performing well over time.
With the right subbase, falls and drainage in place, a well-installed resin bound driveway is built to last for many years with minimal upkeep, which is why we back every installation with a 10-year guarantee.