Water Filter Installation Cost: What to Expect and How Much to Budget

In this article, we’ll break down the water filter installation cost for various systems, including benchtop water filters, under sink water filters, whole house systems and reverse osmosis systems.

Whether you're looking for a simple solution to improve your drinking water or a comprehensive system that treats water throughout your home, understanding the costs involved can help you make an informed decision and plan your budget accordingly.

If you are just going to get a gravity filter that sits on your benchtop, I'm sure you or a handy friend can read the instructions, and it won’t cost you a thing.

They are very simple to install, and if there are videos with your product, check them out because they will walk you through the whole installation process.

There are no ongoing costs with a benchtop gravity filter, and they’re really easy to use. A benchtop gravity filter just sits on the benchtop, and you simply tip water into the top tank and let it drop down into the bottom holder. This filter is super simple and won’t cost you anything to install.

In this video, we break down the costs of installing water filters—from easy DIY gravity filters to more complex under sink and whole house systems. Discover affordable options for better water quality, with prices ranging from free to around $500 depending on the system and installation requirements. Get all the details to make an informed decision about your water filtration needs!

Note: These are estimated costs only. Installation costs may vary depending on your plumber.

A benchtop filter is very similar to a benchtop gravity system in that you can install it yourself for free.

Whether you have a single, twin or triple benchtop water filter, the process is the same.

The first step is to remove the aerator off the end of the kitchen sink spout, put the diverter on and the water then flows into the sink as normal.

Whenever you want the water to flow through the filter, just turn the diverter.

Generally, most people can simply install their diverters on their kitchen tap spout or have a friend help, so it doesn’t cost a thing.

The process to install an under sink water filter is very simple for a plumber or handy man. He needs to install an under sink water filter kit, which leads to the water filter.

The water filter is attached to the wall inside your cupboard under the sink, and the plumber finishes the job off by drilling a hole in your sink or benchtop to install the faucet.

If it's just a standard drinking water filter for under the sink, expect to pay an installer roughly $250 (depending on the plumber).

The cost to install an under sink water filter in Sydney or Melbourne is usually up to $250-$350 depending on the plumber, and the installer should drill a hole in the sink for you for that price as well.

Try and get a plumber who's close to you or use one of our plumbers to cut down on the travel because traffic in capital cities can make it take longer to get to a job than to install the water filter.

For a simple under sink water filter, you can have it done in less than an hour. It's not a lengthy process at all and shouldn't be a costly one either.

In all cases, the benefits to your health far outweigh the cost, so it’s well worth the dollars to get one installed.

If you're going for a whole house system, whether it's a triple or a twin, expect around $650-$1000 depending on the plumber.

A common problem is when you've got a house, and it's just all concrete around the house. In this case, the plumber may have trouble finding the pipework. When he finds it, he might need a jackhammer or have to start digging up the concrete. That's when the price can escalate, and it can cost you more.

Typically, a whole house water filter installation will cost about $650 with the pipework, elbows and on/off ball valves on either side.

We have heard of plumbers trying to quote thousands of dollars to do a simple installation for a whole house system. Try a couple of plumbers and see what you can come up with, as it's straightforward for a plumber to install a water filter.

The plumber just uses tek screws to attach the system onto the house, plumbs in the pipework and tests for leaks. The water filter system is already built, so the plumber just needs to get the water to flow through it.

Reverse osmosis under sink systems are a little different. You've got the tank and a little bit of extra fiddling around and connecting up.

However, the cost for a reverse osmosis under sink installation shouldn’t break the bank. Expect around $300-$450 to have a reverse osmosis water filter installed under the sink. For that price, expect the hole to be drilled right into the benchtop too.

To check our recommended list of plumbers, click here. 

We hope that helps! Please contact us if you have any questions.