For Builders & Developers
Built to your specs, with full support, build guides, optional architectural plans—or let one of our expert sauna builders do it for you.
Compliance with AS/NZS 3000:2018 standards for electrical safety
The World's Most Advanced 5 in 1 Sauna Spa Solution
The future of sauna has arrived at Spencer Home, 32 Waterhouse Avenue, St Ives. The 9kW Saunum Sauna Heater — the most advanced heater technology in the world. Here’s why it changes everything
The Saunum Heater Difference
Patented game-changing heater technology blends hot and cold air to create oxygen-enriched steam, resulting in a more breathable, longer-lasting, and deeply relaxing sauna experience. Enhanced with Himalayan salt ions, it’s a complete 5-in-1 spa solution — Classic Nordic, Steam-Rich, Mild Relaxation, Salt-Ion, and Aromatherapy.
For detailed product info, customisation options, pricing, quotes, or any other questions—get in touch today.
Build My Sauna Quote
Contact us on 0437 996 007 to talk to a Sauna Expert
What's Included - The Base Kit
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SPK-IC01 – Interior Cladding & Trim Kit
Cladding for the rear, side walls, and ceiling in your choice of Western Red Cedar or Hemlock, complete with matching ceiling and vertical corner trims for a seamless finish.
Available in wide or narrow profiles to suit modern architectural builds, with guidance provided for vertical or horizontal installation layouts. -
SPK-BN01 – Bench Framing Kit
A complete solution for building premium sauna benching in Western Red Cedar or Hemlock, designed to suit floating, upper/lower tier, or L-shaped configurations.
The kit includes structural framing, bench slats, matching fascias, corner trims, and a contoured backrest system for both comfort and visual continuity. -
SPK-IN01 – Insulation & Vapour Barrier Pack
Complete wall and ceiling insulation system using Earthwool or Rockwool, with a foil-backed vapour barrier, sauna-rated tape, timber battens, and fixings.
Engineered for high-heat, high-humidity environments and designed to meet AS/NZS 4859.1 (thermal insulation) and AS/NZS 4200.1 (vapour barrier and pliable building membrane standards) for internal sauna applications.
Optional Add-Ons
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SPK-LT01 - LED Lighting Kit
Premium COB and dotless LED strip designed for saunas, offering a smooth, continuous glow with no visible hotspots.
Features a warm amber to soft warm white range (2200K, 2400K, 2700K, 3000K) to enhance timber interiors with gentle, relaxing light.
Fully IP67/IP68 rated for safe use in high heat, steam, and moisture zones.
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SPK-FR01 -Glazing Framing Kit
A non-structural timber trim kit for finishing sauna glass panels and doors. Includes matching wood profiles to blend seamlessly with sauna cladding.
Designed with a low-profile, modern architectural look, ideal for frameless glass surrounds where clean lines and material continuity matter.
A refined finishing solution for contemporary sauna designs.
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SPK- AC01–Accessories Kit
Includes a selection of premium door handles available in 300 mm, 500 mm, and 700 mm lengths—featuring stainless steel exteriors for durability and timber interiors for a warm, natural grip.
This kit also includes a range of modern accessory packs designed to complement today’s architectural sauna spaces, ensuring both function and style.
Professional Sauna Installation Services
We offer end-to-end sauna installation services for residential, commercial, and multi-residential projects—ensuring your sauna is built to the highest standard, safely and efficiently.
Our experienced team handles everything from site preparation and framing to insulation, cladding, ventilation, glazing, and heater commissioning. Whether it’s a full custom build or installation of one of our modular kits, we deliver flawless results with minimal disruption.
Get a Custom Quote for Your Build
Contact us on 0437 996 007 to talk to a Sauna Expert
Heater Options
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The Harvia Cilindro
The Harvia Cilindro delivers a premium sauna experience at a more accessible price point—making it a strong alternative to higher-end systems like Saunum. Its pillar-style design and large stone capacity provide rich, customisable steam and striking visual appeal.
Ideal for 6 m³ to 14 m³ sauna rooms, it lets users control the intensity of steam by where water is poured. When paired with a Wi-Fi-enabled controller, it offers app-based convenience for modern homes and wellness builds.
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The Saunum Experience
The Saunum Experience is the entry-level model in the Saunum range, available in 6 kW and 9 kW options to suit sauna spaces from 5 m³ to 11 m³—perfect for residential builds and developments.
It combines a sleek electric heater with Saunum’s patented air-mixing system, delivering soft, even heat, improved oxygen flow, and longer-lasting steam for a more comfortable, revitalising sauna experience.
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The Saunum Spa Session
The Saunum Spa Session is the high‑end model engineered for sauna rooms sized 8 m³–14 m³, offering enhanced humidity and spa‑level comfort. It combines a powerful electric heater with Saunum’s patented air‑blending system to deliver gentle, long‑lasting steam and uniform temperature distribution throughout the room. The ultimate solution for clients seeking a luxurious, high-humidity sauna environment with precise climate control and modern design.
Get Plans & 3D Render
Bring your sauna to life before you build. We provide detailed building plans and a realistic 3D render, tailored to your space, layout, and timber selection.
Includes floor plan, bench design, heater and glass placement — ideal for builders, installers, and client approvals.
Why We Choose Western Red Cedar
Western Red Cedar is naturally durable, moisture-resistant, and rich in aromatic oils that enhance the sauna experience. Its warm tones and aesthetic beauty make it the premium choice for an authentic retreat. At Serenify, we offer a wide range of profiles to suit your vision—whether you're after a classic look or a modern architectural finish—all while keeping your kit affordable and unique.
The Clean, Light Timber Choice: FSC® Hemlock
Light, clean-lined, and ideal for a minimalist or Scandinavian-style finish.
FSC®-certified Hemlock is a smooth, knot-free timber prized for its pale colour and refined grain. Its stability and uniform tone make it ideal for a modern contemporary sauna cladding and benching where clean design and sustainability matter.
We also do Steam Rooms
We work with your builder, architect, or developer at the design stage to help create a prefabricated steam room—Each unit features curved ceiling and seating panels, factory-moulded from reinforced waterproof fibreglass. The components are lightweight, easy to transport, and assemble on-site into a fully sealed, free-standing structure — ready for tiling in as little as one day.
Powered by HydroSteam generators & controls, misters, showers, lighting, audio, ice fountain, waterfall…. Can be incorporated In your room build. Custom design also available.
✅ High-end result, lower overall cost.