Under-sink water filter installation explained
An under-sink system treats the water you drink and cook with. It is plumbed into the cold line beneath your kitchen bench and delivers filtered water through its own faucet, so it takes up no counter space.
It is a popular choice for apartments, townhomes and households that mainly want better-tasting drinking water without the cost of a whole-home system. Most installations are completed within 2–3 hours.
For the finest filtration at the tap, you can upgrade to a 5-stage reverse osmosis system. See our reverse osmosis page for how RO compares.
- Install time
- 2–3 hours
- Fully installed
- From $1,190
- Workmanship warranty
- 12 months
- Quote
- Free, no obligation
What you get
- Removes chlorine, fluoride, heavy metals & microplastics
- Compact design fits under any kitchen sink
- Dedicated designer faucet included
- Eliminates need for bottled water
- Quick 2-3 hour installation by licensed plumber
How much does under-sink water filter installation cost?
Under-sink water filter installation starts from $1,190 fully installed, including the system, a dedicated designer faucet and installation by a licensed plumber. Upgrading to a 5-stage reverse osmosis system starts from $1,590 fully installed.
- Prices are for standard installs with easy access to your water line and good water pressure
- Your final fixed price is confirmed on-site or from photos before any work starts
- Quotes are free and no-obligation
How is an under-sink water filter installed?
A licensed plumber connects the system to the cold water line beneath your kitchen bench and fits a dedicated faucet for filtered water. Most under-sink installations are finished within 2–3 hours, and we lodge the compliance paperwork for you.
- The system sits under the bench, so it takes no counter space
- Filtered water comes from its own faucet, separate from your main tap
- Filters need replacing about every 6 to 12 months
Simple Process, Exceptional Results
From first call to crystal-clear water in just a few steps.
1. Book Your Free Audit
Call or book online. We'll schedule a convenient time for your free water quality assessment.
2. On-Site Water Test
We test your water on-site, check your plumbing and discuss your needs.
3. Personalised Quote
Receive a fixed-price, no-obligation quote with the exact system tailored to your home.
4. Professional Install
Our QBCC licensed plumbers install your system in 2-4 hours. Clean, fast, and fully compliant.
Under-Sink Filtration: common questions
What's the difference between whole home filtration and reverse osmosis?
Whole home filtration is installed at the main water inlet and treats water before it reaches taps, showers and appliances. It targets chlorine, chloramine, sediment and other common contaminants while helping protect plumbing and reduce scale build-up through your whole house.
How long does installation take?
Most under-sink installations are completed within 2–3 hours. Whole-house, UV and water softener systems typically take 3–4 hours. We'll give you a clear timeline with your quote.
How often do filters need replacing?
In line with global best practices, most systems require filter replacement every 6-12 months, depending on water quality and usage.
Is there a warranty on installations?
Yes! All installations come with a 12-month workmanship warranty. Manufacturer warranties on systems range from 1–10 years depending on the model.
How much does a system cost?
Broadly speaking, our fully installed systems start from $1,190 for an under-sink filter, with a 5-stage reverse osmosis upgrade from $1,590. The most affordable entry-level option is an under-sink system for drinking water ONLY. Whole-home systems start from $3,490, UV systems from $4,690 and water softeners from $5,490, and for the fully installed whole-home systems, exact pricing is influenced by factors such as the size of your home and family, the hardness of your water, the types of treatment chemicals used in your area, and more.
Do you offer payment plans or finance options?
Yes. Flexible payment and finance options are available and can be discussed during your consultation.
More answers on our FAQ page.
Helpful guides
Where we install
We install across South East Queensland. Choose your region for local water supply information.
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