- HEP Plumbing
- Corrosion-resistant Materials

Corrosion-resistant Materials
Corrosion-resistant Materials | Pipe Upgrades | Plumbing | Mascot
Mascot’s salty air and ever-changing temperatures can wreak havoc on traditional plumbing, but HEP has turned the tide with corrosion-resistant materials that outlast and outperform ordinary pipes. Our specialist team replaces rust-prone lines with advanced alloys and polymers that shrug off mineral build-up, electrolysis and abrasive water flows—keeping your water clean, your pressure consistent and your maintenance costs low. From small apartments to sprawling commercial sites, we customise solutions that fit the layout, flow demands and budget of every property.
Choose HEP for pipe upgrades that are speedy, precise and future-proof. We coordinate every step—from site inspection and material selection to installation, pressure testing and final sign-off—so you enjoy minimal downtime and maximum peace of mind. Ready to protect your plumbing investment? Talk to our Mascot experts today and discover how a simple upgrade can add decades of worry-free performance to your building’s water system.
FAQs
Why is upgrading to corrosion-resistant piping important in Mascot properties?
Mascot’s coastal climate means airborne salts and high humidity can accelerate the corrosion of traditional copper, galvanised steel or untreated iron pipework. When pipes corrode they can leach metals into the water, reduce flow rates, promote leaks and shorten the life of appliances. Upgrading to corrosion-resistant materials—such as PEX-A, stainless steel, or copper-nickel alloys—prevents these issues, safeguards water quality and avoids unexpected emergency repairs.
What types of corrosion-resistant pipe materials do you recommend?
We typically recommend three options, chosen according to application and budget: (1) PEX-A with oxygen-barrier for general hot and cold water lines—flexible, fast to install and impervious to scale or rust; (2) 316L stainless-steel press-fit systems for commercial premises or where mechanical strength and fire resistance are critical; (3) Copper-nickel (90/10) or copper with tin-silver internal lining for high-temperature or aggressive-water applications. All options comply with AS/NZS 3500 and Sydney Water requirements.
How long does a typical pipe upgrade project take?
For a standalone home in Mascot, a complete re-pipe in PEX usually takes 1–2 days, while stainless or copper systems may take 2–4 days because of additional cutting, bracketing and press-fit work. In multi-unit buildings we stage the work stack-by-stack; a 10-unit block generally requires 5–7 working days. We provide a detailed schedule up front and keep essential services operational whenever possible.
Will replacing my pipes disturb my tenants or household?
We minimise disruption by using pipe-relining where feasible, running new lines through roof voids or under sub-floors, and switching over zone-by-zone so that only small sections are offline at any time. Loud work is limited to daytime hours, and we protect floors and furnishings with drop-sheets. Most clients retain water service for at least one bathroom during the upgrade.
Are corrosion-resistant pipes more expensive and what are the long-term savings?
Material costs for PEX-A are comparable to standard copper, while stainless systems can be 20–35 % more. However, corrosion-resistant pipes last 50+ years, require little maintenance and reduce the risk of water damage claims. Energy savings also accrue because smooth-bore pipes maintain flow efficiency, meaning appliances and pumps work less. Owners usually recoup the premium within 5–7 years through lower repair and water-loss costs.
Do I need council approval in Mascot for a pipe upgrade and can you handle it?
Internal like-for-like pipe replacement normally falls under exempt development in Bayside Council, so no separate DA is required. If we relocate external pipework, excavate footpaths or upgrade fire services, a minor works permit or Sydney Water Tap In approval may be necessary. We determine the exact requirements during our site assessment, prepare any documentation, and liaise with council and Sydney Water on your behalf.