Cardiff Heights is a neighbourhood about 1 km east of Cardiff township, on our route through Lake Macquarie’s western suburbs toward Newcastle. From bathroom rough-ins to hot water changeovers and gas appliances, certified work, priced upfront.
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Whether it's a burst pipe at midnight or a planned bathroom renovation, Donza Plumbing covers the full range for Cardiff Heights homes and businesses.
Across the wider area: Hot water systems & repairs in Lake Macquarie, Backflow testing in Lake Macquarie, Bathroom renovation plumbing in Lake Macquarie
Local & licensed
Donza Plumbing is based in Mannering Park, about 29 km in a straight line from the centre of Cardiff Heights. Josh Bonser holds NSW contractor licence 498220C for plumbing, drainage and gas fitting, and the business carries $20 million public liability, so work in Cardiff Heights is certified and compliant. ABN 51 697 209 153.
Other areas we cover
Cardiff Heights is a separate suburb from Cardiff, which has its own page: plumber in Cardiff.
Typical homes
Water, sewer & backflow
Hunter Water supplies water and sewer here, and backflow test reports are lodged with Hunter Water. What the annual backflow test involves
Townhouses, semis and row houses make up 17.5% of occupied homes in Cardiff Heights (2021 Census), so we check how a meter or LPG cylinders are shared before quoting any gas work.
Josh holds the gas licence as well as the plumbing licence, so the gas connection and the compliance certificate are part of the same job.
We repair, replace and install gas, electric, heat pump and continuous-flow hot water units in Cardiff Heights, and take the old unit away. No-hot-water jobs are attended around the clock.
Jobs to plan for in Cardiff Heights
We clear blocked sinks, toilets and sewers in Cardiff Heights with the jetter or the drain machine, and put a camera down a drain that keeps blocking.
In Hunter Water’s area the owner looks after the sewer pipes up to where they join Hunter Water’s system, including the boundary trap and inspection shaft. If the inspection shaft is full or overflowing, the blockage may be in Hunter Water’s main, so call Hunter Water on 1300 657 000 (24/7) first.
Jobs to book
Local context
High Terrace was the early name for Cardiff Heights, and Illawong was another that fell by the wayside. Lake Macquarie City Council’s history entry describes a neighbourhood about 1 km east of Cardiff, with boundaries defined on 31 May 1991 and suburb status assigned on 10 August 2001. It gives 1927 for reticulated water and 1945 for sewerage, citing "Pipelines and People", the Hunter District Water Board’s 1967 history. A house older than both dates is worth checking at its supply connection and at its sewer junction.
Customer feedback
Thanks Josh for the installation of my new hot water system. A neat and extremely professional job. I appreciated your communication, reliability and punctuality. Gladly send more work your way.
We had our hot water system blow out while we were away for the weekend and came home to an absolute mess on a Sunday afternoon ! We contacted Donza Plumbing and within 24 hours Josh had us up an running again with a brand new install. His professionalism is commendable and we highly recommended Donza plumbing. Thanks Josh!
