• At Grate Seal, we’re on a mission to eliminate smelly drains for good.

    Born from a real-world plumbing problem and built with everyday people in mind, our products offer a smarter, cleaner way to keep homes and businesses fresh, safe, and hygienic.

    Whether you’re brushing your teeth in the morning or doing a load of laundry, your environment should feel clean and odour-free. That’s where we come in.

Built on the Tools, Not in a Boardroom

  • Back in 2008, Tony and Ronnie were working together in construction plumbing—taking on jobs big and small through their business, Impact Plumbing. When a major contractor called them in to solve an urgent drainage issue on a new apartment build, they found a bigger problem: there was no product on the market that could do what they needed.

    So, they invented one.

    Using flexible rubber and a few spare parts from their factory, they built the first Grate Seal prototype. It worked immediately—and changed the game. What started as a made-to-order fix soon became a patented, tested, and certified product available across Australia.

    You can read the full story here on the blog →

  • Tony Ronnie Grate Seal Founders

Why Grate Seal Works

Grate Seal’s genius lies in its simplicity. It’s a one-piece, self-cleansing valve that fits inside your floor drain

  • Self Cleaning Icon

    One-piece, self-cleaning design

    Fewer parts, fewer failures

  • Custom Fit Icon

    Custom-fit flexibility

    The GS01 can be trimmed for the perfect fit

  • No Odour Grate Seal Icon

    Odour, suds & pest protection

    Blocks what shouldn’t be there

  • Plumbers Icon

    Designed by plumbers, for real life

    Born from experience, not just theory

With multiple sizes to suit common drains—and a flexible design you can trim to fit—it’s trusted by thousands of plumbers, builders, facilities managers, and homeowners alike.

Let customers speak for us

from 97 reviews
Really simple but great device to stop the smells from our very old drains

Really simple but great device to stop the smells from our very old drains.
Works a treat and easy to install once we cut it down to fit the 80mm drain.
Bathroom now has pleasant smell rather than smelly drain smell coming from the shower.

Allison
Grate Seal 100mm - 80mm
Absolutely fantastic product and the smell is GONE! Easy as to install

Absolutely fantastic product and the smell is GONE! Easy as to install, I’d recommend this to anyone who has a smelly drain.

Tom Drake
Grate Seal 100mm - 80mm
Good effective design

Good simple design, easy to install. Stops air flow coming up out of floor drains ie smells , and other uninvited visitors.

Peter Kash
Grate Seal 100mm - 80mm
Our drain only ever emitted an odour when you turned the shower on

Our drain only ever emitted an odour when you turned the shower on. Not anymore!!! No smells, and you wouldn’t even know the grate seal was in there. It drains full shower flow uninhibited. Overall a pretty good product👍🏻. Would I recommend it? Yep.

jason schaap
Grate Seal 100mm - 80mm

Does an excellent job! Came quickly and was eaay to install.

David
Grate Seal 100mm - 80mm
Easy to install and it stops the smells

Easy to install and it stops the smells.
I wish there was a smaller one for my open shower hole! It's only 65mm.

Ingrid Ambrose
Grate Seal 100mm - 80mm
Grate Seal Success

The Grateseal stopped the drain smell and stopped the drain gurgle sound of other solutions.

Anonymous
Grate Seal 100mm - 80mm
Bathroom drain smells gone.

Bought 2 of these after trying to get rid of the smell coming from the bathroom drains. There are no vent pipes, so the drains were the vent.

Thought that some drain cleaner would work, but our pipes were clean. A mate suggested these, so I gave them a try.

Once fitted up as per instructions, no more smell! In both bathrooms. We are very happy with this product. Thanks!

Sean
Grate Seal 100mm - 80mm
Easy installation and it does its work properly

Easy installation and it does its work properly.

Anonymous
Grate Seal 100mm - 80mm
Simple concept and simple to install

Simple concept and simple to install.
Installed two of these at home over the weekend. Unfortunately neither of the drains I was installing into were standard. One had been reduced by whoever installed it with mortar, so I had to get creative with the seal. The other drain had a 35mm pipe (weird) and I had a 50mm Seal unit. Again I got creative and used a coke plastic bottle lid, cut off to screw the oversized seal into place and create a fairly air tight seal, whilst still allowing the diaphragm to open and close.

Michael Auckland
Grate Seal 50mm
Fixed the sewer odour immediately

Fixed the sewer odour immediately, great product.

Michelle Janout
Grate Seal 100mm - 80mm
Great

Great product

Anonymous
Grate Seal 100mm - 80mm
Resolved bathroom smells and fitted both the shower and floor drain perfectly

Resolved bathroom smells and fitted both the shower and floor drain perfectly.

Anonymous
Grate Seal 100mm - 80mm
So easy to install

So easy to install, and I'm not handy at all! Took less than 5 mins.
Completely effective, bad smells are massively reduced and no more drain flies!
Shower is draining perfectly, no issues since installing.
Brilliant invention!

Anonymous
Grate Seal 100mm - 80mm

I can’t believe how far across the globe i had to look find something so essential

Denise
Grate Seal 100mm - 80mm

Blog posts

View all
1 3
View all

Need Help with Smelly Drains?

Grate Seal could be the simple solution you’ve been looking for.

1 3