No viable outfall
Collected water still needs a lawful route with sufficient capacity.
Control the route before water reaches the building
Surface-Water Drainage in Surrey
Drainage channels, gullies, falls, attenuation and groundworks for drives, patios, gardens and building thresholds.
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Since 2012Checkatrade member
SurreyGuildford-based team
One teamGroundworks to finish
The direct answer
Surface-Water Drainage: what matters most?
Surface-water work should follow a hierarchy: reduce uncontrolled runoff, set useful falls, intercept water before vulnerable points and provide adequate storage or discharge. A channel without a dependable outlet is only temporary storage.
Our first survey focuses on the variables that change method, risk and price. The written scope then states the included work, important assumptions and the information or approvals still required.
Real A Jones project photographyTypical scope
What we can include
- Driveway and patio channels
- Threshold and garage protection
- Gullies and collector pipework
- Soakaways and attenuation
- Garden regrading and interception
- Repair of failed surface-water routes
Every site is different. The quotation—not a generic web list—defines the final package.
Devil in the detail
Four issues worth resolving before work starts.
Good planning makes risk visible while there is still time to change the method.
Neighbour impact
New work must not simply transfer runoff onto adjacent land or the highway.
Low thresholds
Small level errors can direct a large catchment towards doors and garages.
Maintenance access
Leaves, silt and debris need accessible collection points.
How the work progresses
A six-stage route from question to handover.
The exact construction changes; the discipline of resolving information before burying it does not.
- 1
Observe the problem and catchment
- 2
Survey falls and vulnerable levels
- 3
Trace existing drains and capacity
- 4
Agree interception and discharge strategy
- 5
Install channels, pipework and storage
- 6
Test during flow and explain maintenance
Plan with better information
Use a calculator, then let the site visit replace assumptions.
Our tools organise quantities and project details without pretending to be a quotation. Results make the first survey more useful.
Frequently asked
Surface-Water Drainage questions
Clear answers before commitment make the survey, quotation and build easier to compare.
Why does my driveway flood only in heavy rain?
The catchment may exceed channel, pipe or soakaway capacity, or a restriction may reduce flow. Measuring the area and inspecting the whole route helps separate these causes.
Can you add drainage without replacing the driveway?
Sometimes. Local channels or pipework may be possible, but overall falls and the outlet must still work. We explain when a limited repair is realistic.
Can rainwater connect to a foul drain?
Not by assumption. Drain ownership, sewer type and approvals must be checked; surface water should follow the appropriate lawful route.
Will a French drain fix a wet garden?
Only when there is a defined source, gradient and outlet. A gravel trench without somewhere for water to go may simply remain full.
Local service pages
Surface water across Surrey.
These pages explain the access, ground, drainage and planning considerations that commonly affect work in each area.
Continue planning
Related services
The next useful step
Ready to turn the site conditions into a clear scope?
Send the property location, a few photos and any drawings. We will explain the most useful next survey.