Building Materials
Underground Drainage for sites in South Glamorgan
Underground drainage is the system of plastic pipes, bends, junctions and inspection chambers that carries foul and surface water away from a building, most often in 110 mm PVC-U pipe.
Across South Glamorgan, from Cardiff to Rhiwbina, we supply drainage delivered to site with the price and date confirmed in writing.

South Glamorgan at a glance
- Covering
- 6 towns across South Glamorgan
- Postcode areas
- CF
- Delivery
- Standard mainland delivery
- How it arrives
- Pipe lengths and boxed fittings
- Neighbouring areas
- Mid Glamorgan, Gwent, Somerset
Underground Drainage available for South Glamorgan delivery
- Gullies and channel drainsTo collect surface water from yards and drives.
- 110 mm and 160 mm pipePVC-U underground pipe in 3 m and 6 m lengths.
- Rainwater systemsGutters, downpipes and fittings.
- Soakaway cratesFor surface water where ground conditions allow.
- Bends, junctions and couplersFittings to change direction and join branches.
Underground Drainage delivered in South Glamorgan towns
- Underground Drainage in Cardiff
- Underground Drainage in Barry
- Underground Drainage in Penarth
- Underground Drainage in Llantwit Major
- Underground Drainage in Whitchurch
- Underground Drainage in Rhiwbina
How much will you need?
A 22 m run of 110 mm drain needs 8 pipes in 3 m lengths (or 4 in 6 m lengths), plus a bend or junction at each change of direction and an inspection chamber where your design shows one. Add pea gravel for bedding and surround and we will price the lot together.
Delivery to South Glamorgan: what helps
Pipe travels in 3 m and 6 m lengths; fittings and chambers come boxed or loose with the load. Our standard mainland delivery area covers South Glamorgan.
- For a phased build we can split the order so materials arrive as each stage starts, which keeps the site clear.
- Weight limits on bridges or private roads near the site matter for larger lorries, so mention any you know of.
- On busy streets in South Glamorgan, a parking suspension or a quiet time slot can make offloading safer, so tell us about local restrictions you know of.
Getting the right drainage
Covers for the location
Chamber covers are rated for loads, from pedestrian areas to drives. Tell us where each chamber sits.
Foul or surface water?
Foul (sewage) and surface water often need to go to different places. Check where your drains connect before you order.
Wales has its own Approved Documents, including its own Part L for energy efficiency, and building control is handled by the local authority or a registered approver.
Underground Drainage in South Glamorgan: questions
What do I bed drainage pipe in?
Usually pea gravel or a similar granular material around the pipe. We can add it to the order as bulk bags.
Do you deliver drainage to South Glamorgan?
Yes. We deliver across South Glamorgan, including CF. Our standard mainland delivery area covers South Glamorgan. Send your list or call 0800 088 6341 and we will price it delivered to your postcode.
Can I connect to the public sewer?
New connections to a public sewer usually need approval from the local water company.
Can I add other materials to my South Glamorgan delivery?
Yes. Put everything on one list, from drainage to fixings and PPE, and we will price it as one delivery where the products can travel together.
Underground Drainage in neighbouring areas
- Underground Drainage in Mid Glamorgan
- Underground Drainage in Gwent
- Underground Drainage in Somerset
- Underground Drainage in Bristol
- Underground Drainage in West Glamorgan
More materials delivered across South Glamorgan
Send your list, get a delivered price
Tell us what you need and where it is going. We check the quantities and come back with a delivered price before you commit.
