DIY Plunge Pool Kit Australia - The Costs, Construction and More

Dreaming of a backyard pool? Whether you’re working with a cosy courtyard or a spacious lawn, a DIY fibreglass plunge pool kit could be just what you need to bring your backyard vision to life. Plunge pools are compact by design, but don’t let the size fool you—they’re big on style, versatility, and chill-out potential! They’re perfect for squeezing some luxury into a smaller yard, or for adding a splash of fun to a larger space without taking over the whole lawn.

And the best part? With a DIY fibreglass pool kit, you can cut costs by rolling up your sleeves and tackling some or all of the work yourself. But before you start booking in trades, it’s important to know what you’re getting into. What exactly is included in a DIY plunge pool kit? How much should you budget for? And can you really handle it yourself? (Spoiler alert: You absolutely can!)

In this guide, we’ll cover the most important parts you need to know—from costs and construction to insider tips for a smooth DIY plunge pool build. By the end, you’ll have a solid idea of whether a DIY fibreglass plunge pool is right for your backyard, budget, and inner weekend warrior.

What is a DIY Fibreglass Plunge Pool Kit?

A DIY fibreglass plunge pool kit is a complete pool package delivered straight to your doorstep, ready for you (and maybe a few handy mates) to install. It should include everything you need to get started: the pre-moulded fibreglass shell, a premium Australian-made pool pump and filtration system, engineer-certified drawings, and a comprehensive pre-installation tip sheet with supporting videos to guide you through the whole process. Think of it like assembling a giant backyard puzzle—with the big bonus being that when you’re done, you’ve got a stunning new plunge pool to show for it!

Unlike pre-cast concrete plunge pools, which require a concrete pad, weigh up to 11,000 kg and require massive cranes (like $5,000 to over $10,000 to hire) to lift the pool into place, a fibreglass plunge pool is lightweight, which makes installation quicker, easier and cheaper. The shell itself is made from layers of high-quality fibreglass, giving it that smooth finish and durability that fibreglass pools are known for. Once you’ve prepped your backyard, it’s just a matter of placing the pool into the excavated area, backfilling, hooking up the plumbing, and adding some water. As long as you have been provided with detailed tip sheets and DIY installation videos, it is as easy as that! (Well, almost)

DIY kits are perfect for homeowners who want a beautiful pool but would rather skip the hefty installation costs. By taking on part or all of the project yourself, you get all the luxury of a fibreglass plunge pool and the satisfaction of saying, “Yep, I installed that!” It’s the ideal choice for confident DIY enthusiasts or even first-timers who are willing to put in a little elbow grease to make their backyard dreams come true.

Why Choose a DIY Fibreglass Pool?

So, why go for a fibreglass plunge pool kit instead of the other options out there? Because it’s the perfect balance of style, durability, and convenience—without the higher cost charged by full-service, full-price pool builders. Here’s why a fibreglass plunge pool kit is a standout choice:

Quick and Easy Installation
The best way to understand the difference between a concrete, vinyl liner, pre-cast concrete and fibreglass plunge pool is to think of having a flat pack wardrobe delivered from IKEA:

• Concrete Plunge Pool: Your wardrobe is delivered as blocks of wood that a skilled tradesperson will machine into panels and then assemble onsite for you.

Note: This can’t be done in wet weather and can take up to 2 months.

• Vinyl Liner Plunge Pool—Your wardrobe is delivered as a flat pack and ready to assemble onsite. You can assemble it yourself, but the instructions are not very good. Without prior experience, it might take you plenty of time (frustration is included free of charge), and when finished, the doors don’t line up, and the wardrobe has a slight lean.
• Pre-Cast Concrete Plunge Pool - your wardrobe is delivered to the site assembled and ready to lift into place. You’ll pay a hefty premium for the convenience of pre-assembly and the need for multiple trades and heavy lifting gear to set it up on site.
• Fibreglass Plunge Pool: Your wardrobe is delivered to the site pre-assembled. You can do all of the site preparation yourself or arrange trades to help out. Being lightweight, heavy lifting gear isn’t required, and you can follow the instructions to backfill the pool and connect the equipment. There will be some frustration, but support is only a video or phone call away. 

Low Maintenance
Thanks to their smooth, non-porous surface, fibreglass pools are naturally resistant to algae and require fewer chemicals to keep the water balanced compared to concrete pools. Less scrubbing means more time spent enjoying your pool and less time brooming down walls, worrying about algae and going to the pool shop to have your water tested.  

Cost-Effective
With a DIY fibreglass plunge pool kit, you can save a bundle on installation costs by taking on some of the work yourself. And because fibreglass pools are so easy to maintain, you’ll continue to save money in the long run with lower chemical and cleaning costs.

Strength and Durability
Fibreglass pools are built to last with structural warranties up to 25 years (concrete and vinyl liner pools are usually 10 years).. They’re tough enough to withstand soil movement and can be installed in all soil types including E class sites. This means you are not at risk of cracks and long-term structural issues compared to concrete pools. Plus, with UV-resistant gelcoats, your pool will look as good as new for years to come without the expense of resurfacing (every 10 years or so with concrete pools) or replacing liners (usually every 5 to 7 years).

Compact and Versatile
Whether you’ve got a small courtyard or want a chic addition to a larger backyard, a plunge pool fits in just about anywhere. Use it as a refreshing retreat on hot days, a relaxation zone, or even a stylish feature alongside your deck or garden.

Ultimately, a fibreglass plunge pool kit lets you enjoy all the perks of a pool—without the big price tag or higher maintenance that usually comes with other types of pools.

Download our comprehensive free guide An Unbiased Comparison: Concrete v Fibreglass v Vinyl Liner

How Much Does a DIY Fibreglass Plunge Pool Kit Cost in Australia?

Let’s talk numbers! The cost of a DIY fibreglass plunge pool kit in Australia can vary depending on the size, style, and any additional features you want to include. On average, you’re looking at anywhere between $18,000 to $23,000 for a standard plunge pool kit (between 4m and 5.5m). But before you start crunching numbers, keep in mind that this price typically covers the basics: the fibreglass shell, pump and filtration system and the delivery of the kit to your property.

If you want to upgrade to spa jets, variable speed pump or advanced cleaning systems, you can expect the cost to go up. However, even with these custom touches, a DIY fibreglass plunge pool kit remains a cost-effective option compared to professionally installed pools. Make sure your plunge pool kit supplier takes the time over the phone to understand your project and provide an itemised upgrade quote for total transparency.

Every pool project is different, and hope is not a good strategy with a big budget item like a pool. It is frustrating how often we are called by pool owners who have bought elsewhere and are now wondering why their pool is forever needing chemicals, turning green or their power bill is through the roof (hint: the wrong equipment was supplied).

Another key factor is installation costs. Although you’re saving big by going the DIY route, there are extra expenses to consider, like excavation, site preparation, electrician, backfill material and any necessary council approvals. Depending on the complexity of your site and how much you do yourself, these additional costs can range from as little as $4,000 to over $10,000. The good news? By doing much of the work yourself, you’re in control of where and how you allocate your budget!

For homeowners wanting a stylish, high-quality plunge pool without the hefty price tag, a DIY fibreglass plunge pool kit offers the perfect mix of affordability and flexibility. Just be sure to budget for any extras that might pop up along the way, so you’re not caught off-guard when it’s time to make your backyard oasis a reality.

Read our Tips for Building a DIY Fibreglass Plunge Pool on a Budget

Construction and Installation: Can You Really Do It Yourself?

Tackling a DIY fibreglass plunge pool project can sound daunting, but with the right kit and a bit of know-how, it’s more doable than you think! In fact, that’s what makes DIY fibreglass pool kits so popular—they’re specifically designed to simplify the process so that even if you’re not a professional builder, you can save money and achieve an outcome that looks like it was installed by a pro.
(And yes, you can really do it yourself!).

The key is in the preparation. Start by assessing your backyard space and marking out the exact location for your plunge pool. You’ll need to handle a few big tasks like excavation, prepping a base, and making sure all your measurements are spot on. This might be where you call in a few favours from mates—or hire a local contractor for the parts, like digging out the hole and setting the shell into place. If you have ever project managed a bathroom renovation or any other reno work around the home, it’s no different with a DIY fibreglass plunge pool kit. Once the site is ready, the fibreglass shell is lowered into the prepared area using a crane, and from there, it’s just a matter of connecting the plumbing, installing the filtration system, and backfilling the pool. You don’t need a plumber to connect the equipment up however you may need an electrician.

Quality pool kit providers will provide detailed instructions and videos to guide you through each step, so you’re not left scratching your head halfway through. And if you’re really stuck, some suppliers even offer helpline support to answer your questions and help you stay on track (hint: we do that - at Complete Fiberglass Pool Kits).

Can you really do it yourself? Absolutely! With the right preparation, a good plan, and a willingness to roll up your sleeves, installing your own plunge pool is entirely achievable. Not only will you save on installation costs, but you’ll also have bragging rights every time someone asks, “Who built this beauty?”

Tips for a Successful DIY Fibreglass Pool Build

Taking on a DIY fibreglass plunge pool project is exciting, but it’s important to plan ahead to avoid any surprises along the way. Here are a few tips to make your DIY build smooth as a babies bum.

Before you even think about digging, make sure you have a detailed plan in place. This means choosing the exact location, making sure your measurements are precise, and getting any necessary council approvals lined up. A little planning up front saves a lot of headaches later! 

Proper excavation and site preparation are key to a successful installation. If you’re not confident with an excavator, consider hiring a professional to handle this part. Make sure the base gradient aligns with your pool floor, and you use Australian Standard 1839:2021 Fibreglass Pool Installation compliant materials. The gradient required should be shown on the supplied dig sheet however always check measure the shell dimensions to make sure they match the excavated area.

It might sound obvious, but read the instructions before you start! (Yes, all of them.) DIY fibreglass pool kits should come with a pre-installation guide and detailed explanation videos. Take the time to familiarise yourself with the process so you know exactly what to expect at each stage.

Whether it’s ensuring the shell is level, that the plumbing connections are watertight, or that you’ve backfilled evenly, double-check everything as you go. The carpenter’s maxim of “measure twice, cut once” applies to pools as well.

For a comprehensive read on installation DIY Fibreglass Pools: Professional Tips for a Flawless Installation

Common Mistakes to Avoid When Installing a DIY Fibreglass Pool

Even the most prepared DIYer can run into a few hiccups, but knowing what to look out for can save you from costly mistakes and unnecessary headaches. Here are some common pitfalls to avoid when installing your DIY fibreglass plunge pool:

We get it—you’re eager to get your pool in the ground and start swimming. But skimping on site preparation is one of the biggest mistakes you can make. If the base isn’t properly levelled, you might to have the pool lifted up and re-level the bedding. Professional pool installers call this process “tea bagging” as the pool going in and out of the hole can look like dunking a tea bag. Hire a laser leveller (around $100) to make sure the base matches the dimensions of your pool. A little patience here pays off big time.

One loose fitting or misaligned pipe can turn into a headache later. Double-check all your plumbing connections as you go, making sure everything is tight and correctly positioned. A small leak might seem harmless now, but once the pool is filled, even a minor issue can turn into a time consuming (and potentially expensive) repair. 

When it comes to backfilling, it’s all about slow and steady. Use a garden hose rather than a water truck if you are doing it yourself. You won’t be under pressure from the water truck operator who wants to get to the next job. Use Australian Standard 1839:2021 Fibreglass Pool Installation compliant materials and continually check the pool walls are flat (no bulges or bows) and your pool is level. If you notice a wall bow or a bulge or the pool has dipped in a corner, it is straightforward to resolve at the time. Trying to fix this after the pool is full of water and backfilled to the top is possible however you won’t enjoy the process.  

Every council has different requirements for installing pools, and the last thing you want is to hit a roadblock (or a fine) because you didn’t follow these requirements. Make sure you’ve secured the necessary permits before you start digging. Your permits will clearly outline when inspections are required, and you must install the pool exactly as shown on the site plan you submitted with your permit application. Don’t wing it or hope any changes won’t be noticed during your final inspection. If in doubt about a potential change, call the council and ask if you need to have your permit amended.

Do DIY Pools Need Council Approval?

Short answer: Yes. Even if you’re installing a small DIY fibreglass plunge pool, council approval is required before you start digging. In Australia, pool regulations can vary depending on your state and local council, but one thing is clear—getting the proper permits and approvals is a must.

Why? Because it’s not just about making sure the pool is safe; it’s about ensuring the entire installation meets building and safety standards, including fencing requirements, site location, and drainage considerations. Installing a pool without the right permits can result in hefty fines, delays, or even having to modify or remove parts of your build.

What approvals do you need?

Most councils will require you to submit engineering plans and detailed specifications for your pool, along with information about your fencing and barriers. You will need to provide a site plan showing how the pool will fit into your backyard.

At Complete Fibreglass Pool Kits we include certified engineering plans with every DIY kit to help streamline the approval process, making it easier to get the green light from your local council.

Who handles the approval process?

You can manage the permit approval process directly with your local council or, if you prefer, hire a private certifier or building surveyor to handle it for you.

Getting the green light from your local council might seem like a hassle, but it’s an important step to ensure your pool is compliant and safe—both for your family and your neighbourhood. Once the paperwork is squared away, you’ll be free to focus on the fun part: bringing your DIY pool project to life!

Final Thoughts: Enjoy Your DIY Fibreglass Plunge Pool with Confidence

Taking on a DIY fibreglass plunge pool project might seem like a big task, but with the right kit, a solid plan, and a bit of determination, it’s absolutely achievable. Not only will you save money compared to a pool installed by a full-service, full-price pool builder, but you’ll also have the satisfaction of building something truly your own. Plus, a fibreglass plunge pool kit is designed to simplify the process, giving you everything you need to turn your backyard into the ultimate relaxation spot.

From understanding the costs and navigating council approvals to ensuring a smooth installation, we’ve covered the essentials to help you feel confident every step of the way. By choosing a DIY fibreglass plunge pool, you’re not just investing in your home—you’re creating a space for family fun, relaxation, and countless summer memories.

So, roll up your sleeves, get your plans in place, and get ready to enjoy your new poolside retreat. With a bit of patience and some hands-on effort, you’ll soon be enjoying a stunning plunge pool that’s a testament to your hard work and creativity. And if you have any questions along the way, don’t hesitate to reach out—our team is here to help!