Service

Rainwater Tank Installation in the Illawarra

Slimline, round or under-deck — we install rainwater tanks across the Illawarra with the correct first-flush diverter, pump and back-to-mains crossover (with backflow protection) for toilet, laundry and garden use.

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Rainwater Tank Installation by a licensed Shellharbour plumber servicing the Illawarra

Local rainwater tank installation you can actually rely on

A properly-installed rainwater tank pays for itself across the Illawarra in 5–8 years, especially on a 4-bed family home plumbed back to toilets and laundry. We install slimline poly tanks (Bushmans, Kingspan, Polymaster) against side walls in Shellharbour and Wollongong narrow lots, large round tanks on rural blocks in Jamberoo, Croom and Tullimbar, and bladder/under-deck tanks where space is genuinely tight.

A good rainwater install is more than just sitting a tank on a slab. We include a correctly-sized first-flush diverter (so the first dirty roof-runoff bypasses the tank), insect-proof inlet and overflow screens, an automatic pump with mains backup (Davey, Grundfos or Reefe Rainbank), the back-to-house crossover for toilet and laundry use, and — critically — a testable backflow device at the mains crossover so you stay Sydney Water compliant.

We also handle Council BASIX requirements on new builds and major renovations, where a connected rainwater tank is often required to hit the water efficiency score. Documentation, certification and as-built drawings provided.

Signs you need a rainwater tank installation plumber

If any of these sound familiar, call us on 0466 442 293 — we'll talk it through and book you in.

Building or renovating and need BASIX compliance
Want to reduce mains water bill on a large house or family
Have a tank but no internal connection (garden only)
Existing tank pump failing or surging
Rural property without reliable mains pressure

Our rainwater tank installation process

Site assessment

We measure the space, check roof catchment area and confirm pump and tank sizing.

Install tank + first flush

Slimline or round tank on a level pad, with first-flush diverter and screened inlets.

Pump + crossover

Automatic pump with mains backup, plumbed to toilet, laundry and garden taps with backflow protection.

Commission

Test, document and provide BASIX / Council compliance paperwork.

Same-day response

Most rainwater tank installation jobs across Shellharbour, Kiama and Wollongong are attended the same day you call — 24/7 for emergencies.

NSW licensed & insured

Fully licensed plumber and gas fitter, $20m public liability cover, Certificates of Compliance lodged with NSW Fair Trading.

Fixed first-time

We carry common parts for tap, toilet, drain and hot-water jobs on the van, with fast supplier access for anything more specialised — so most repairs are done permanently on the first visit.

Workmanship guarantee

Every repair and install is backed in writing — if anything isn't right, we come back. No fight.

Why locals choose us