Polypropylene soakwell delivery servicing Perth, WA.
DIY – WE TEACH YOU TO DO IT YOURSELF

Install Your Own Soakwells With Expert Help

Get step-by-step instructional videos, a soakwell calculator based on Perth council stormwater formulas, and trafficable polypropylene soakwells with free delivery on orders over $250 within the zone on our map.

  • Video-led DIY method (assembly video plus full install video when you order)
  • Soakwell calculator to size your system correctly
  • Australian-made trafficable polypropylene soakwells
  • Free delivery on orders over $250 within our mapped free delivery zone

Full installation video is included when you place your order.

Watch how it works

Overview of the DIY soakwell installation process.

We sell Australian-made soakwells.
Perth's best prices, Perth's best products!
15 years local experience

  • Easy

    Our polypropylene soakwells come flatpacked for transport. Using our installation method will save you time and money!

  • Helpful

    We don't just sell soakwells, our core service is ensuring you buy the right number of soakwells, based on the local council formula for stormwater drainage and over 15 years experience installing soakwells in Perth.

  • Strong

    Our polypropylene soakwells are trafficable and suitable for residential use under driveways, concrete, paving and grass.

  • High Performance

    60% of the poly soakwells surface area is open, providing more drainage than the equivalent concrete soakwell.

Cheaper than Bunnings!
140 litre polypropylene soakwell with dividers
Buy plastic soakwells - Bunnings, Novaplas, Perth.

See the Method Before You Buy

Two videos work together: a public assembly video so you can see how our trafficable polypropylene modules go together, and a full installation walk‑through that you unlock when you order.

Assembly video – watch a complete module go together step by step.

1-min install preview — order to unlock the full walk-through.

What These Videos Actually Give You

The big hurdle with DIY soakwells isn’t just buying the right size – it’s believing you can actually do the job. These videos are built to remove that doubt.

  • Assembly video – shows exactly how each trafficable module clips and locks together, so there are no surprises on the day.
  • Full install video – walks you through excavation, layout, pipe connections, backfilling and compaction using the same products we sell.
  • Works with our calculator – once you know how many soakwells you need, the videos show you how to put that system in the ground.

Order Once – Get the Full Method

When you order your soakwells from us, you’re not just buying product. You get the complete installation video and the right mix of pipe and fittings to finish the job.

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Polypropylene soakwell delivery servicing Perth, WA.

Buy Trafficable Polypropylene Soakwells

Prices include GST, correct as of Thursday the 2nd of April, 2026

All soakwell purchases include the required geofabric at no extra cost. Choose pickup or free delivery for orders over $250.00 (within the free delivery zone on our map) at checkout.

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Polypropylene soakwell delivery servicing Perth, WA.

Stormwater Piping and Fittings

*** Please note soakwell purchase is required ***. All prices include GST and are correct as Thursday the 2nd of April, 2026

Please contact us if you need assistance. The items listed below include everything you could need for your soakwell installation.

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Polypropylene soakwell delivery servicing Perth, WA.

Soakwell Installation Services & Pricing

DIY SOAKWELLS PTY LTD. ACN 606 865 507

Digital Help, Start to Finish

Questions? Call 08 6406 2112.
Plan review & placement guidance.
Perth locals. Established 2009.
Soakwell calculator (council-style).

DIY Support

Save vs full install quotes.
Trafficable poly soakwells.
Simple online ordering.
Pay on delivery.

Delivery & Pickup

Free over $250 in mapped zone.
Freight options available.
Under $250: $25 delivery.
Pickup available.

Digital Install Help Pack

Planning & trenching tips.
Placement & fall tips.
Assembly walkthrough.
Time-saving install tips.

The Highest Quality Polypropylene Soakwells in the World.
Bar None.

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Polypropylene soakwell delivery servicing Perth, WA.
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Polypropylene soakwell delivery servicing Perth, WA.

Installation Tips

Our general advice on purchasing the correct stormwater system is to calculate the volume of the soakwells based on the roof area (catchment area) and the formula for predicted rainfall during a storm from your local or nearby council.

Location

When choosing a location, the soakwells should be at least 1.5 - 1.8m from footings and boundaries, depending on your council. Never start digging until you know where all your underground services are (sewer / gas / power / water / phone / fibre etc).

You can contact Dial Before You Dig for free to find out about the underground services on public land and we have some tips for you as well.

Location diagram showing key soakwell placement and clearance guidance

Polypropylene Soakwell Installation

To maximise the area in contact with the sand and take advantage of the design, polypropylene soakwells are ideally installed in rows in only two or three locations.

This is important because downpipes can take different amounts of water from the roof at different times due to the fall of the gutters, direction of the wind/rain or maintenance issues.

We always aim for just two locations, a row of polypropylene soakwells at the front and back of the house. This is dependent on factors including available space and the location of underground services as well as the distribution of roof area.

Polypropylene soakwell installation trench prepared for a residential stormwater system
  Tip!  Halve the number of 140 polypropylene soakwells to find out the total length!
eg. 12 soakwells = 6m long (W x 0.5m, D x 0.9m).

Stormwater Piping Installation

The inlets are cut in the top of the soakwell. The inlets can be cut prior to wrapping, otherwise they can be cut once the soakwells are installed (before backfilling). Ensure you do not cut the hole where there is a divider.

For the piping plan, walk around your house and draw a rough plan of the boundary, house perimeter, downpipes and proposed soakwell locations.

Pace out the length of pipe required from the furthest downpipe to the soakwells. The fall for the pipe is 100mm for every 10 metres. Cut a hole in the top of the soakwell for the pipe. Make sure you glue the fittings and pipe.

A simple approach is best for digging and measuring. We only use 90° elbows for corners and try to avoid 45° bends. For junctions we recommend using Y-junctions with M&F 45° bends to create a Y shaped T for easy trenching and the best performance.

You should use grates under the downpipes to prevent water rising up the downpipes in any situation and to allow the system to breathe for optimal flow. Some exceptions could be undercover or wooden areas.

Stormwater piping installation trench with connected pipework running to the soakwell
 Tip! - The inlets are cut into the top of the soakwell for easy access.

Sand Disposal

Don't forget you will have the sand displaced by the soakwells at the end. To estimate the amount take the total volume of the polypropylene soakwells and add another 30%. We have some tips on how to deal with this as well.

Excavated sand stockpile from a soakwell installation ready for disposal or reuse
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Polypropylene soakwell delivery servicing Perth, WA.

Mini Excavator Hire

Make the hardest part of the job easier. At just 700mm wide, you CAN fit an excavator back there!

DIY Soakwells recommends installing your  soakwells in rows , in as few locations as possible.  Our tiny 1t excavator , with custom made 600mm bucket is perfect for the job.

  Taking you places you never thought you could go!
Pickup or Delivery available.

Features

  • Easy to operate, no license required in Western Australia.
  • This mini excavator can withdraw its tracks to become just 700mm wide!
  • With a folding, removable rollcage this machine becomes just 1.79m tall.
  • Dig up to 1.71m deep.
  • Equipped with a 180mm bucket (shovel sized), 350mm toothed bucket and 600mm mud bucket perfect for soakwells.
  • Push sand around with the 860mm blade.
Mini excavator working in restricted-access and tight-space conditions

Check Current Rates and Availability

For up-to-date pricing, availability and booking details, please visit our dedicated excavator hire site: perthminiexcavatorhire.com.au .

Our mini excavator is the smallest in Perth.
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Polypropylene soakwell delivery servicing Perth, WA.

How to Use the Shop

To find out the number of soakwells needed based on your roof area click:

For more information on our trafficable polypropylene soakwells in the shop click:

To add items to the cart in the shop click:

This counter displays the number of each item in the cart:

0

To view the items in your cart and to checkout click:

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Delivery is free for orders over $250.00 within the free delivery zone. ($25.00 for orders under $250.00).

We will contact you within 24 hours to discuss the details of your order and arrange delivery. You will be emailed a final invoice after delivery with bank account details. Payment can be made online by bank transfer or credit card.

About DIY Soakwells™

This website is designed to equip you with the knowledge to make an informed decision when purchasing polypropylene soakwells for your home or extension.

DIY Soakwells™ supplies and delivers polypropylene soakwells, geotextile fabric, U-PVC stormwater pipe, fittings and accessories in Perth, Western Australia.

When you order from us you also receive great service and comprehensive on the job advice on all aspects of the installation.

We specialise in polypropylene soakwells. Polypropylene soakwells offer strength, efficiency and ease of installation. We supply all the necessary materials for your stormwater project, from the polypropylene soakwells to the piping and fittings.

DIY Soakwells team installation scene for the About DIY Soakwells section
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