Question 1

What does water filtration installation cost in Perth?

Accepted Answer

Cost depends on the system type, your existing plumbing configuration, and whether any preparatory work is needed (e.g., installing a dedicated supply line for an under-sink system). As a general guide: Whole-home filtration systems: from $3,300 installed for a 3 stage system, depending on property size and pipe configurationBonza provides a fixed price before any work begins. If the job requires something unexpected once the installation starts, that's communicated before proceeding — not added to the invoice afterwards.

Question 2

Does Perth tap water actually need filtering?

Accepted Answer

It's drinkable without filtration. But Perth's water is chlorinated and chloraminated as part of treatment, which produces the taste and smell many households find off-putting. If you're buying bottled water or using a filtered jug, a properly installed system is almost certainly cheaper over 12 months and produces better results.

Question 3

What's the difference between a whole-home filter and an under-sink filter?

Accepted Answer

A whole-home filter treats all the water entering your property — every tap, shower, and appliance. An under-sink filter treats water at one specific outlet, usually the kitchen tap. Which one suits you depends on what you're trying to solve. Jared will give you a straight answer based on your actual situation, not the option with the higher margin.

Question 4

How often do the filters need replacing?

Accepted Answer

It varies by system and usage. Most under-sink cartridges are replaced every 6–12 months. Whole-home pre-filters typically every 12 months. Bonza will walk you through the maintenance schedule at handover so there are no surprises.

Question 5

Will a filtration system reduce my water pressure?

Accepted Answer

A correctly sized and installed system should have minimal impact on your household water pressure. If there's a pressure issue with your existing supply, that'll be identified during the assessment — before anything is installed.

Question 6

Can I install a water filter myself?

Accepted Answer

Technically, some filters marketed as "DIY" can be connected without a licence. In practice, any connection into your home's copper or PVC pipework is plumbing work under Western Australian law and requires a licensed plumber. Doing it yourself risks voiding your product warranty and may affect your home insurance if a leak occurs. It's not worth it.

Question 7

Do you install filtration systems in rental properties?

Accepted Answer

Yes. Landlords in the southern suburbs use Bonza for filtration installs in investment properties — it's a relatively low-cost improvement that's popular with tenants and can be depreciated for tax purposes. Call to discuss the specifics of your property.

Question 8

How long does installation take?

Accepted Answer

Most under-sink and inline filtration installs are completed in 1–2 hours. Whole-home systems take 2–4 hours depending on the property's plumbing configuration.

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