How to buy a modular pool

You'd love a pool at home, but a traditional build feels out of reach. Excavation, concrete curing and council approvals can stretch the journey from first quote to first swim well past a year. And that's assuming your section even has room for one.

Meanwhile, the costs keep climbing. Traditional builds often run over budget once excavation, fencing and landscaping are added, and heating a large volume of water can bring a winter power bill nobody planned for.

A modular pool offers a faster, more flexible path to the water. Site-assembled from engineered panels, it fits where a traditional pool can't and is typically ready for water in days once your site is prepared. This guide covers what to look for when buying one, from choosing a range to running costs and installation.

What is a modular pool?

A modular pool is a swim-in-place pool built on site from prefabricated steel panels and reinforced acrylic, finished with a heavy-duty vinyl liner. The panels arrive in kitset form and fit through standard doorways and stairwells, so there's no need for a crane or heavy machinery.

Every Hot Spring® modular pool uses Endless Pools® Hydrodrive™ technology. Instead of pumping air into the water like standard swim jets, Hydrodrive™ uses a hydraulically driven propeller to create a smooth, airless current. You swim in place against steady resistance without turning at a wall, so a compact pool still gives you an endless swim.

Which modular pool should I buy?

The right modular pool depends on how you'll use it. A serious swimmer needs a stronger current, while a family wanting a place to relax and play may value space and depth more.

Choosing the right range

Hot Spring® offers five modular pool ranges, each built around a different level of swim performance.

Specifications from the Hot Spring® website. Water area is the interior swim area, not the overall footprint.

Choosing the ideal size and depth

Modular pools are built to suit your space, with length and width adjustable in increments as small as 25 mm. EP, Plus and Pro models start at a standard 99 cm depth, with 114 cm and 129.5 cm options for taller swimmers or deeper water exercise.

Unlike a traditional pool, there's no sloping floor or sudden deep end. A flat therapy floor gives everyone firm, level footing, which helps children feel confident and gives a stable surface for water walking or rehabilitation.

Where to install it

Modular pools can be installed indoors or outdoors, either in-ground or above-ground. That flexibility opens up spaces a traditional pool can't reach, such as a garage, sunroom, basement or tight courtyard. Indoor installations also make year-round swimming easier in cooler parts of New Zealand.

Key takeaways:

• Match the range to your swim goals, from the compact SP-Series to the elite Pro-Series.
• A flat floor removes deep-end anxiety for children and anyone in recovery.
• Indoor and above-ground installs open up spaces where a traditional pool won't fit.

What does a modular pool cost to buy and run?

A modular pool generally costs less than a traditional pool build, and the savings continue once it's running. Understanding where the money goes helps you compare quotes with confidence.

Upfront costs

Because modular pools are site-assembled from panels, you avoid many of the biggest costs of a traditional build, including excavation, concrete work and crane hire. Your total still depends on the range, size, depth and finishing options you choose. Ask for an itemised proposal covering the pool, delivery, site preparation, electrical work and finishes such as coping and skirting.

Running costs

A modular pool holds far less water than a typical backyard pool, so there's less to heat and treat. Each range uses an energy-efficient 4 kW electric heater, and insulating covers help hold the temperature between swims. Options include a bi-fold or manual retractable cover, an automatic retractable cover and a Thermo-Light insulated blanket.

Maintenance and upkeep

A smaller water volume means fewer chemicals and simpler water balancing. Every range uses a skimmer with a removable cartridge, which you replace at regular intervals, and selected EP models include a UV water purifier. Your dealer will walk you through a simple care routine at handover.

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How is a modular pool installed?

Installing a modular pool is a much simpler project than a traditional build. Once your site is prepared, the panels are assembled on site and the pool is usually ready for water within a few days.

Site preparation depends on whether you choose an in-ground or above-ground install. Above-ground pools need a solid, level base, while in-ground installs need excavation to suit your chosen depth. Your dealer will confirm the requirements for your site.

Each modular pool needs a 220–240V / 32A electrical connection, and the Dual Propulsion Pool needs two. Electrical work must be done by a licensed electrician in line with local codes.

Pool fencing and building consent rules may also apply, depending on your pool's design and location. Check with your local council and your Hot Spring® dealer early in the planning process.

Key takeaways:

• Modular pools generally cost less than a traditional build, with no excavation for above-ground installs and no crane hire.
• A smaller water volume helps keep heating and chemical costs down.
• Check fencing and consent requirements with your council before you build.

What features should I look for in a modular pool?

The best modular pools pair a high-quality current with features that make every swim more comfortable. Look for:

• An airless current: Hydrodrive™ creates smooth, ocean-like resistance without bubbles that drop your hips and disrupt your stroke.
• Precise pace control: Adjustable speed settings let you go from a gentle float to a full training session. The Fit@Home® app and wireless remote let you change pace without leaving the water.
• Fitness and therapy options: Add an underwater treadmill, aquabike, swim tether or hydromassage jets to suit your goals.
• Comfort and access: Perimeter benches, interior stairs and hand rails make getting in and out easier for everyone.
• A durable liner: The vinyl liner is 40% thicker than traditional liners, with solid and patterned colour options.

Modular pool vs traditional pool

A modular pool and a traditional pool both get you swimming at home, but the path to get there is very different.

What after-sales support should I expect?

Good support matters as much as the pool itself. Buying through a local Hot Spring® dealer means you can visit a showroom, feel the current for yourself and get expert advice on siting and power.

Hot Spring® has more than 45 years of experience in water wellness, and its dealers support you from your first site check through to servicing for years to come. Ask your dealer to confirm warranty terms in writing before you buy.

Frequently asked questions about buying a modular pool

How long does a modular pool take to install?

Once the site is prepared, a modular pool is usually assembled and ready for water within a few days.

Can a modular pool go indoors?

Yes. The panels fit through standard doorways and stairwells, so modular pools can go in garages, basements or sunrooms.

How deep is a modular pool?

EP, Plus and Pro models come in 99 cm as standard, with 114 cm and 129.5 cm options. The SP-Series is 114 cm deep.

Do I need a crane to install a modular pool?

No. The pool arrives as panels that can be carried in by hand, so no crane or neighbour's access is needed.

Can I move a modular pool if I move house?

Yes. Modular pools can be disassembled and reinstalled at a new property. Your dealer can advise on what's involved.

Start planning your modular pool

A modular pool gives you an endless swim at home without the cost, wait or disruption of a traditional build. The best way to choose the right range is to experience the Hydrodrive™ current for yourself. Visit your local Hot Spring showroom to see the full range and get in touch with our expert team for any questions.