- HEP Plumbing
- Low Pressure

Low Pressure
Low Pressure | Pipe Upgrades | Plumbing | Reliance
Is your shower sputtering, taps taking ages to refill the kettle, or irrigation lines barely keeping the garden green? HEP’s low-pressure specialists diagnose the hidden causes—undersized supply lines, sediment-clogged galvanised steel, or ageing poly that’s lost its flex—and replace them with modern, correctly sized materials that restore full, even flow across your property. Our licenced team works cleanly and quickly, trenching only where necessary and using advanced crimping systems to deliver watertight joins that outlast traditional solder.
From a single troublesome branch line to a whole-of-house solution, our pipe upgrades eliminate frustrating pressure drops, improve appliance efficiency and safeguard water quality. You’ll feel the difference the first time you turn on a tap—and enjoy the peace of mind that comes with HEP’s 25-year workmanship guarantee and transparent, up-front pricing.
FAQs
What are the main reasons for low water pressure, and how does a pipe upgrade solve them?
In older homes the original galvanised-steel or small-diameter copper lines often corrode internally, collect mineral scale and become too narrow for today’s water demands. Every millimetre of buildup increases friction loss, so the pressure at your taps drops. Upgrading to new, correctly sized PEX or copper piping instantly removes that restriction, giving you a clean, smooth-walled path for water to flow at full mains pressure.
How can I tell if my property actually needs new pipes or just a simple repair?
Start with a basic checklist: (1) Is the pressure low at every fixture, hot and cold? (2) Does the pressure drop even more when two taps run together? (3) Are your pipes older than 30–40 years or made of galvanised steel? If you answer ‘yes’ to any of these, you may have a systemic pipe problem rather than a single leak or valve issue. Reliance offers a free on-site pressure test and internal camera inspection; if we find localised faults we’ll recommend a repair, but if corrosion or undersizing is widespread a full or partial repipe is the long-term fix.
Which pipe materials does Reliance use for low-pressure upgrades and why?
We typically install Type L copper, PEX-A cross-linked polyethylene, or a multi-layer PEX/Aluminium/PEX composite. All three are (1) corrosion and chemical-scale resistant, (2) have a much smoother internal bore than old galvanised pipe, and (3) are rated to at least 1000 kPa working pressure, far above domestic requirements. Material choice depends on access, budget and any fire-code or commercial-grade specification on your site; we’ll explain the pros and cons and let you decide.
Will upgrading my pipes mean tearing out walls and disrupting my household?
In most cases, no. Our technicians route new lines through ceiling voids, crawl spaces and cupboards, then switch each fixture over one by one. We use keyhole access panels rather than full wall removal, and any small cut-outs are neatly patched and painted. Water is usually off for only a few hours; you can stay in the house throughout the job, and kitchens or bathrooms are returned to usable condition at the end of each day.
How long will the project take and what will it cost?
A straightforward one-bathroom, single-storey home typically takes 1–2 working days and ranges from $2,500 to $4,000 including materials, labour and council sign-off. Larger or multi-storey homes may take 3–4 days and run $4,500–$7,000 depending on access and fixture count. We provide a fixed-price quote before work begins, offer staged progress payments, and can arrange low-interest finance if needed.
What kind of warranty and after-service support does Reliance provide?
All pipe materials carry a 25-year manufacturer’s warranty, and Reliance backs our workmanship for 5 years in residential settings (2 years commercial). You’ll receive a compliance certificate and pressure-test report on completion. If you experience any issue, call our 24/7 service line and we’ll prioritise your job—most concerns are resolved within 24 hours. To keep your new system performing, we also offer an optional annual inspection and free pressure check.