Channel Drainage Installation in Dorset, Hampshire & Wiltshire
Surface water is one of the most overlooked causes of damp. When rain is not directed away from driveways, patios and external walls, it saturates masonry, bridges damp proof courses and increases pressure against foundations. Channel drainage controls that water before it reaches your home.
1 day
Typical small domestic run
25yr
Workmanship guarantee
4.9/5
From 200+ reviews
A linear system that intercepts water before it reaches your walls
Channel drainage is a linear surface-water system installed at ground level. It collects rainwater along driveways, patios, garage thresholds and building perimeters, then directs it safely into drainage.
Unlike traditional point drains, channel drains run in a straight line — ideal for intercepting water flow before it reaches walls or foundations.
By capturing surface water early, channel drainage prevents:
- Ground saturation around foundations
- Water tracking toward external walls
- Damp proof course bridging
- Hydrostatic pressure on below-ground structures
- Long-term masonry deterioration
Relieve the water pressure against your building
Channel drainage reduces surface water pressure before it can affect the building fabric. It is often recommended as part of a broader damp-proofing or basement waterproofing strategy.
When water repeatedly pools against a building it increases the risk of:
- Penetrating damp
- Basement water ingress
- Rising damp through ground bridging
- Damage to render and brickwork
- Structural movement in extreme cases
Where channel drains make the biggest difference
Installation is especially important where external ground levels are close to internal floor level, or where hard landscaping directs water toward the house.
Channel drainage is recommended when:
- Driveways slope toward the house
- Patios sit level with or above the damp proof course
- Water pools near foundations
- There is no effective surface water management
- You are converting or waterproofing a basement
- You are upgrading external landscaping
Integrated into a wider drainage and damp prevention plan
Rainwater follows the path of least resistance. Without proper fall, drainage points or collection systems, it accumulates against external walls. Channel drainage works best as part of a complete strategy rather than in isolation.
A complete drainage strategy considers:
- Ground levels and fall direction
- Location of the damp proof course
- Existing soakaways and drains
- Roof water discharge points
- Permeability of the surrounding soil
The right channel for the load
Each system is specified for expected load, water volume and connection to existing drainage.
Domestic light-duty
For patios, garden paths and pedestrian areas — typically polymer concrete or PVC with galvanised or plastic grates.
Driveway & vehicle-rated
Designed to withstand vehicle loads on driveways, garage entrances and parking areas.
Heavy-duty systems
Installed in high-load or commercial environments where traffic and water volumes are greater.
Decorative or slimline
For modern patios and landscaped areas where appearance matters as much as performance.
Every installation protects the building envelope
Installation begins with a site assessment of ground levels, water flow patterns and damp risks.
- Step 1
Identify water collection points and problem areas
- Step 2
Calculate the appropriate channel capacity
- Step 3
Ensure correct falls for gravity drainage
- Step 4
Connect to suitable outlets or soakaways
- Step 5
Install durable, load-rated systems
- Step 6
Finish neatly to match surrounding surfaces
Frequently asked questions
A channel (linear or ACO) drain is a slim trench with a grating that collects surface water and guides it to a lawful outfall, typically a soakaway. Use one where water pools on driveways, patios, garage thresholds or along retaining walls.
If your front driveway is permeable, or you route runoff to a permeable area within your plot, you usually do not need planning permission. If you add over 5 m² of impermeable surfacing that does not drain to a permeable area, permission is generally required in England.
Generally no. Building Regulations promote separate systems for foul and surface water, so surface water should not discharge to a foul-only sewer.
Lift the grates seasonally to remove leaves and silt, check for blockages after heavy rain and keep outlets and soakaways free-flowing. On longer runs we include catchpits or gully pots to trap grit before the outfall.
ACO is a leading brand, and people often use the name to mean any linear or channel drain. What matters is selecting the correct load class and a lawful outfall.
Small domestic runs are often completed in a day. Costs vary by length, load class, reinstatement (block, resin, slab or concrete), access and whether a new soakaway is needed. We survey and provide a fixed, written quote.
Ready to stop standing water for good?
Book a complimentary survey and we will assess ground levels, water flow and damp risk — and we can prioritise call-outs after heavy rain.
- Complimentary, no-obligation In-Depth Survey
- Carried out by our own in-house specialists
- Clear findings and an itemised, fixed-price quote
- 25-year workmanship guarantee as standard
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Genuine reviews from local homeowners
Over 200 verified reviews across Checkatrade, Google and Yell
“Excellent service from start to finish. The survey was thorough and professional, with honest, evidence-based advice rather than trying to sell unnecessary work. I came away with complete peace of mind.”
Alex Richards-Taylor
Google review
“Excellent service throughout. Ashton came out to look at an issue raised on a part-exchange survey and, rather than recommend expensive remediation, told me honestly there was nothing wrong with the wall. Great to have an honest discussion.”
Ian M.
BH16 · Damp Investigation
“Dylan and the Proofterior team were amazing. The report was incredibly comprehensive. Can’t recommend them enough.”
Sam Short
Google review
“Very pleased with the work on our living room and bedroom walls. Punctual, polite and friendly, and completed on time even though it was Easter week. Many thanks to everyone at Proofterior.”
Chris G.
BH20 · Penetrating Damp Treatment
“Dan was very thorough, professional and polite. Quick to respond and I would highly recommend.”
Malik R.
Yell · Quick & Professional
“The workmen were clean, pleasant and efficient and took just one day. The very next day we noticed a big difference with the damp issue. Many thanks.”
Nick Bennett
Google review
“Able to fit my job in for the next day and completed in a day as agreed. Not the lowest quote, but it comes with a 25-year guarantee, which I wanted — long-term peace of mind was vital.”
Alan M.
BH23 · Flat Roof Reseal
“Ashton was so friendly and informative. I’ve gone from worried to empowered — someone you can trust to do the right thing.”
Suzanna Furbank
Google review
“Really amazing service. Dan provided a really thorough damp investigation and a very helpful damp report. Very quick responses too.”
Paul A.
Yell · Damp Investigation
“Happy with the speed — a full flat survey within a week. They explained our options, the price was extremely competitive, and our tenants are pleased with their fresher, safer flat.”
Verified Customer
SP6 · Damp Proofer
“Dan provided a very professional service from start to finish. Very good communication and a first-class job.”
Mark H.
Yell · Professional Service
“Excellent service from start to finish. The survey was thorough and professional, with honest, evidence-based advice rather than trying to sell unnecessary work. I came away with complete peace of mind.”
Alex Richards-Taylor
Google review
“Excellent service throughout. Ashton came out to look at an issue raised on a part-exchange survey and, rather than recommend expensive remediation, told me honestly there was nothing wrong with the wall. Great to have an honest discussion.”
Ian M.
BH16 · Damp Investigation
“Dylan and the Proofterior team were amazing. The report was incredibly comprehensive. Can’t recommend them enough.”
Sam Short
Google review
“Very pleased with the work on our living room and bedroom walls. Punctual, polite and friendly, and completed on time even though it was Easter week. Many thanks to everyone at Proofterior.”
Chris G.
BH20 · Penetrating Damp Treatment
“Dan was very thorough, professional and polite. Quick to respond and I would highly recommend.”
Malik R.
Yell · Quick & Professional
“The workmen were clean, pleasant and efficient and took just one day. The very next day we noticed a big difference with the damp issue. Many thanks.”
Nick Bennett
Google review
“Able to fit my job in for the next day and completed in a day as agreed. Not the lowest quote, but it comes with a 25-year guarantee, which I wanted — long-term peace of mind was vital.”
Alan M.
BH23 · Flat Roof Reseal
“Ashton was so friendly and informative. I’ve gone from worried to empowered — someone you can trust to do the right thing.”
Suzanna Furbank
Google review
“Really amazing service. Dan provided a really thorough damp investigation and a very helpful damp report. Very quick responses too.”
Paul A.
Yell · Damp Investigation
“Happy with the speed — a full flat survey within a week. They explained our options, the price was extremely competitive, and our tenants are pleased with their fresher, safer flat.”
Verified Customer
SP6 · Damp Proofer
“Dan provided a very professional service from start to finish. Very good communication and a first-class job.”
Mark H.
Yell · Professional Service