Building Materials
Order drainage for delivery in Downpatrick
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.
Building in Downpatrick? Send us your list and we will come back with a delivered price for the drainage and anything else on it.

Underground Drainage to Downpatrick: the basics
- Postcode districts
- BT30
- Delivery
- Quoted individually (Northern Ireland)
- How it arrives
- Pipe lengths and boxed fittings
- Delivering to
- Downpatrick, County Down
- Daylight
- About 7h 18m on the shortest day
- Nearby (straight line)
- Newtownards (18 mi), Lisburn (19 mi), Belfast (20 mi)
Underground Drainage we supply in Downpatrick
- Bends, junctions and couplersFittings to change direction and join branches.
- Gullies and channel drainsTo collect surface water from yards and drives.
- Rainwater systemsGutters, downpipes and fittings.
- Pea gravel beddingBedding and surround for pipe trenches.
Delivering drainage in Downpatrick
Pipe travels in 3 m and 6 m lengths; fittings and chambers come boxed or loose with the load. Deliveries to Northern Ireland include a sea crossing, so we quote each order individually.
- Clear a level area for pallets, ideally on boards, so materials stay out of standing water.
- Deliveries are to the kerb, drive or within crane reach; ask if materials need to go further.
- In summer Downpatrick gets around 17h 13m of daylight, but early deliveries still beat the traffic and give the longest working day.
A quick quantity check
An 18 m run of 110 mm drain needs 6 pipes in 3 m lengths (or 3 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.
Getting the right drainage
Building over or near a sewer
Building near a public sewer may need permission from the water company. Check before you dig.
Foul or surface water?
Foul (sewage) and surface water often need to go to different places. Check where your drains connect before you order.
In Northern Ireland building work follows the Building Regulations (Northern Ireland), with guidance in the Technical Booklets, and applications go to the council's building control team.
Your questions answered
Do you supply gutters and downpipes?
Yes, in common profiles and colours, with brackets and fittings.
Can I add other materials to my Downpatrick 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.
Do you deliver drainage to Downpatrick?
Yes. We deliver across Downpatrick, including BT30. Deliveries to Northern Ireland include a sea crossing, so we quote each order individually. Send your list or call 0800 088 6341 and we will price it delivered to your postcode.
What size drainage pipe do I need?
110 mm is the standard size for most domestic underground foul and surface water drains; 160 mm is used for larger runs. Your design or building control will confirm.
Close to Downpatrick
- Underground Drainage in Newtownards
- Underground Drainage in Lisburn
- Underground Drainage in Belfast
- Underground Drainage in Holywood
- Underground Drainage in Banbridge
- Underground Drainage in Bangor (Down)
Other materials for Downpatrick sites
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.
