Rainwater tank suppliers
Find verified companies serving your region. Listings describe companies and capacity ranges, without product catalogues or manufacturer photography.
No listing on this page is paid for.
Bailey Tanks↗
New Zealand manufacturer of above-ground polyethylene water tanks, including compact, slimline and large rural formats.
Delivery to most mainland New Zealand addresses; published exclusions include Gisborne/East Cape and several remote or island areas.
Details checked 15 Sept 2026
Big Water Tanks↗
Auckland manufacturer and direct seller of above-ground polyethylene water tanks for rainwater, stormwater and general water storage.
Delivery to many upper and central North Island locations; confirm availability for the exact address.
Details checked 15 Sept 2026
Devan↗
New Zealand manufacturer of above-ground polyethylene water tanks for residential, rural and commercial storage.
Nationwide delivery from North and South Island manufacturing and distribution centres; some island deliveries may cost extra.
Details checked 15 Sept 2026
Humes↗
Supplier and manufacturer of concrete water-storage tanks for rural and residential applications.
Concrete tanks from 3,000–10,000 L are listed nationwide; the 20,000 L option is South Island only.
Details checked 15 Sept 2026
Promax↗
New Zealand manufacturer of above-ground, slimline and underground polyethylene water tanks for residential, rural and commercial storage.
Nationwide coverage from North and South Island factories; availability varies by tank range and island.
Details checked 15 Sept 2026
RXP↗
New Zealand manufacturer of polyethylene water tanks, with large rural and smaller storage formats distributed through stockists.
Available through rural suppliers throughout New Zealand; individual models can be island-specific.
Details checked 15 Sept 2026
No listed supplier publishes delivery to that region. The nationwide manufacturers above may still quote for it — ask them for your exact address.