Backed since 2001
Built for the long haul, and backed like it.
Over 10,000 AlumiTubs are out in the world, at off-grid cabins, lake cottages, family homes and coastal properties across the globe. The earliest ones are still being soaked in today. That track record is why we can put a 25 year structural warranty on a hot tub, and why we designed every single component to be replaceable rather than disposable.
Built to live on.
Most hot tubs aren't made to live on. They're made to be replaced. An AlumiTub is built the other way: simply and intentionally, every detail carefully mastered and thought through to perform and stand up to whatever the weather throws its way. Coastal salt air, deep cold, a cabin left alone through the winter.
Simple by design, not by shortcut. Nothing is buried. On most hot tubs the working parts sit behind sealed panels and packed foam, awkward to reach and sometimes impossible. On an AlumiTub, the cedar, the firebox, the heater, pump, board and filtration are all bolted, banded or slotted onto a marine-grade aluminum structure, so any of them can be reached and replaced by hand. You can change heating system entirely as your property and your plans change. We still supply parts for tubs built two decades ago.
It also means ownership is genuinely simple. The care instructions and how-to guides are detailed, plainly written and easy to follow, with QR codes on the tub itself so anyone can find them in seconds. Nothing about looking after an AlumiTub asks you to be handy.
That is what the warranty below is really describing. Not a promise that nothing will ever need attention over twenty-five years, but a promise that when something does, there will be a part for it, clear instructions for fitting it, and us on the other end of an email. We've been supporting owners with their particular property and use needs for over twenty-five years, from the first fill to twenty winters in, and that doesn't stop when a warranty runs out.
Why we're able to offer this
We've been building these on the Sunshine Coast since 2001. The design has been refined over twenty-five years of tubs coming back to us with real-world wear from real-world places: salt air on the coast, minus forty in the north, hard well water, unattended cabins, rental properties running seven days a week.
Marine-grade aluminum was chosen because it doesn't rely on swelling to stay watertight the way a traditional cedar tub does, and doesn't crack or delaminate the way an acrylic spa does. Cedar stays on the outside where it belongs, doing what it's best at.
The structure is riveted, the way an aircraft or an Airstream is, rather than welded, and a rivet can be replaced by hand decades later. There are no jets and no internal plumbing, so there is nowhere inside the tub for water to sit that a drain doesn't reach. On the Electric and Hybrid, the heating and filtration unit lives outside the tub in the cedar steps, where it can be serviced or replaced without touching the structure.
None of that means an AlumiTub will never need anything. It means that when it does, it's a part and an afternoon, not a write-off. That's the whole design philosophy.
Coverage · 25 Year · 15 Year · 10 Year · Conditions · Not Covered · Make a Claim
What's Covered
Your warranty is registered automatically when your tub ships. There's no form to fill out and nothing to mail back. Coverage begins on the date of delivery to the original purchaser.
| Component | Term |
|---|---|
|
Marine-grade aluminum structure Riveted structure, foundation and seams |
25 years |
|
Stainless steel Chimney, chimney cap, bands, hardware |
25 years |
|
Canadian Western Red Cedar Seats, exterior cladding, firebox fence |
15 years |
|
Firebox Wood Fired and Hybrid models |
10 years |
|
Electrical components Heater, pump, control board, filtration. Serviceable and replaceable indefinitely thereafter. |
2 years |
Parts, not service calls.
Where a claim is covered, AlumiTubs supplies the replacement part at no charge for the full length of its term. We build tubs that a person can fix themselves, ship the part directly to you, and walk you through the job by email for as long as it takes.
Supplying the part is therefore the extent of the remedy. This warranty does not include labor, service calls, on-site service, diagnostics, installation, removal or refitting, and AlumiTubs does not send technicians to properties. Shipping on replacement parts is the owner's responsibility unless covered by warranty.
25 Year Structural Warranty
The marine-grade aluminum structure and foundation of the AlumiTub, together with stainless steel components including the chimney, chimney cap and bands, are warranted to remain free of leaks for twenty-five years from the date of delivery.
This is a warranty against leaks and structural failure. Surface changes to the aluminum or stainless, including scale, are not a structural defect and are not grounds for replacing the tub or any part of it.
Where leaks come from. Across more than twenty-five years of building these tubs, leaks have traced back to a short list of causes: water freezing inside the tub, a base that isn't in continuous contact with the whole floor, firing the firebox with insufficient water, and sealant at a seam reaching the end of its life. The first three are covered in the manual and are not covered by this warranty. The last is ordinary care, set out below.
Why the base matters so much. The floor of the tub is a riveted aluminum sheet, not a structural slab. It carries several thousand pounds of water because the base underneath is carrying the floor. Wherever there is a gap, the floor has to span it instead, and it flexes there. Riveted seams are watertight sitting still, and seams that flex begin to weep. Being level is not the same as being supported: blocks, piers, deck joists, sleepers, timbers, pavers with gaps between them and unevenly settled gravel are all perfectly level and all leave part of the floor spanning air. A base like that does not leak on the day you fill it, it leaks a few weeks in, which is why "it was fine when we filled it" does not mean the base is right.
Seam sealant. Renewing the sealant at a seam is typical care over the life of a tub, in the same way anodes and filters are. If a seam begins to weep, email us. We'll send replacement sealant directly to you and walk you through the steps to reapply it.
Aluminum and stainless steel develop a patina over time as they interact with air, water and minerals. Localized hard water may leave surface deposits or marks. This is normal, is not a fault or flaw, and does not affect the structure or performance of your tub. Guidance on restoring surface finish is in the AlumiTub Manual.
Anode requirement. Electric, Hybrid, and Wood Fired + Filtration tubs must run three magnesium anodes at all times. Replace them every 3–4 months, or once 30% or less of the anode remains, whichever comes first. Anodes are a consumable part. On the systems that run them, the anodes and the published water care ranges are together what protect the aluminum, so both have to be kept current. Damage to the aluminum on a tub run without current anodes is not covered.
15 Year Cedar Warranty
All Canadian Western Red Cedar components, including seats, exterior cladding and the firebox fence, are warranted against warping or degradation beyond reasonable wear for fifteen years.
Cedar is a living material. It varies in color, grain and texture, silvers with sun exposure, and will develop surface splits and checking as it moves through wet and dry seasons. This is characteristic of the wood rather than a defect, and does not compromise the tub's construction. Cedar components are individually replaceable and can be refreshed at any point in the tub's life, which is why a twenty year old AlumiTub can look new again for the price of a few boards.
10 Year Firebox Warranty
The firebox on Wood Fired and Hybrid models is warranted against defects in workmanship and materials for ten years, and is a fully replaceable component.
The one thing that voids firebox coverage
Firing with insufficient water. Fill to the line marked on the tub, or at least 4 inches above the chimney collar, and keep the water there the entire time the firebox is hot. The firebox must be allowed to cool fully before you drain below that line. Warping or burn-through on a firebox found to have been fired dry is not covered. Burning anything other than clean, untreated wood, such as pellets, fire starter logs, or wood with nails or staples, and allowing rainwater into the firebox will also void coverage. Keep the storage cover on between soaks.
Conditions of Coverage
We stand behind our work, and this warranty is written to be honored. Nothing here is designed to catch you out. It comes down to seven things, all of which are in the AlumiTub Manual, and all of which take minutes rather than hours. Those instructions apply to anyone who uses, cleans, treats or services the tub, not only the person who bought it.
- Water chemistry. Hold alkalinity at 80–120 ppm, pH at 7.4–7.8, and calcium hardness at 150–250 ppm. Keep bromine at or below 3 ppm, using tablets in a dispenser: an in-line dispenser on Electric, Hybrid and Wood Fired with Filtration tubs, and a floating dispenser on tubs without filtration. Do not use chlorine, chlorine pucks, salt systems, or any treatment not approved for use with aluminum. Wait until cedar tannins have cleared, typically after the first five fills, before adding sanitizer.
- Water source. Those ranges apply to every fill, whatever the water came from. Rainwater and other very soft sources arrive with almost no calcium hardness or alkalinity and must be corrected before sanitizer goes in, on every fill rather than occasionally. Do not fill through a water softener, which removes calcium by design. Water held persistently below the ranges above is under saturated, and will draw minerals from the surfaces it touches until it is corrected.
- Cleaning. Soft cloth only. No abrasive cleaners, no scrubbing, no sanding.
- Installation. In continuous contact with its base across the entire footprint, with no gaps or unsupported spans underneath, and rigid insulation laid continuously as a barrier against concrete, gravel or pressure-treated wood. Level alone is not sufficient: if you can slide your hand under any part of the tub, it is not ready to fill. Electrical work completed by a certified electrician to local code.
- Materials in contact with the tub. Aluminum reacts with certain metals and treated timber. Avoid contact with treated wood, metal-bearing stains, non-stainless fittings and non-aluminum components.
- Freezing. Drain and dry completely before freezing conditions if the tub won't be in use, and remove the drain kit and chimney. Never allow ice to form inside the tub.
- Keep a simple record. Before the first fill, take a few photos of the finished base and of the tub sitting on it, taken low and from the side so that they show nothing is hollow underneath. After that, note your water test results and the dates you change anodes; a phone note or the water care tool is plenty. These are what a claim is assessed against, and they are the quickest way for us to say yes.
Full detail on all of these is in Section 9 of the manual.
If anyone else uses or services your tub, they need to know this too.
An AlumiTub is not a conventional spa and cannot be treated like one. The owner is responsible for making sure the care instructions are followed by everyone who touches the tub, including household members, guests, renters, property managers, caretakers, cleaning staff, and any third-party pool or hot tub maintenance contractor. Damage caused by any of those people is treated exactly as if the owner had caused it.
To make that easy, every AlumiTub carries QR codes on the tub itself linking straight to the care instructions. Anyone standing in front of it can scan and read what to do, without needing to find the manual or call you.
Pay particular attention to anyone servicing the water. Spa and pool technicians routinely default to chlorine tablets, pucks and standard spa chemistry, none of which are approved for an aluminum interior. Before letting a contractor treat your water, make sure they have read the water care section and understand that bromine at or below 3 ppm is the only approved sanitizer.
What's Not Covered
Written out plainly so you know exactly where you stand before you buy, rather than finding out during a claim.
| Labor and service | Service rarely comes into it, because every working part is reached through the steps rather than from behind a sealed panel, and replacing one is an ordinary afternoon job. Where a job is needed, this warranty covers the part rather than the visit: labor, service calls, site visits, diagnostics, installation, removal, refitting and winterizing are not included. |
| Loss of use and income | Lost rental, booking or commercial income, cancelled reservations, guest compensation, alternative accommodation, and any other loss arising from the tub being unavailable. |
| Running and consequential costs | Water, electricity, firewood, water treatments, and damage to decking, landscaping, structures or personal property surrounding the tub. |
| Care by third parties | Damage caused by guests, renters, property managers, caretakers, cleaning staff or third-party maintenance contractors who did not follow the care instructions, including the use of chlorine or other unapproved spa chemistry. |
| Normal wear and natural material change | Cedar silvering, splitting and checking. Aluminum and stainless patina, hard water deposits, scale and any other surface change that does not cause a leak or structural failure. |
| Water chemistry damage | Surface and structural damage from bromine above 3 ppm, chlorine use, unapproved treatments, water held persistently outside the published ranges, or running without current anodes. |
| Improper firing | Firebox damage, and leaks at the firebox or its seams, from firing with low water, draining before the firebox has cooled, unapproved fuel, or rainwater intrusion. |
| Freeze damage | No tub survives water freezing inside it. Damage from water freezing anywhere in the tub or its equipment is not covered, including the structure, seams and rivets, the drain valve, drain plug and Drain Kit, plumbing, the filter housing and cartridge, the pump and the heater. That includes freezing during a power outage: freeze protection on the Electric and Hybrid needs power to run, so a tub left full where the power can fail should be drained or watched. |
| Installation and site | Damage from a base that isn't in continuous contact with the whole floor, including leaks at seams or rivets where the floor has been spanning a gap or the structure has been carrying weight unevenly, as well as direct contact with concrete or pressure-treated wood, or electrical work not completed to code. |
| Modification | Alterations, non-AlumiTubs replacement parts, coatings, stains or sealants applied to the tub. |
| Transport and external events | Freight damage (covered separately under our refund policy), accident, misuse, vandalism, fire, flood, falling trees and other environmental events. |
| Consumables | Magnesium anodes, filters, fuses and gaskets. |
Anything on this list can still be put right. It just isn't free. Parts are available to buy for the life of the tub, and we'll help you work out what you need.
Commercial and rental use
AlumiTubs are used at rental cabins, B&Bs, wilderness lodges and vacation properties, and we're glad they are.
On a rental property the owner remains responsible for how the tub is used and maintained by everyone else. That includes guests, property managers, caretakers, cleaners and any hot tub or pool maintenance company engaged to service it. The QR codes on the tub are there to help, and we recommend giving your property manager and anyone contracted to treat the water a copy of the manual as well. Damage arising from a guest, manager or contractor not following the care instructions is not covered.
As set out above, this warranty covers parts only. It does not cover lost bookings, lost rental income, guest compensation or any other commercial loss arising from a tub being out of service, on residential or commercial installations alike.
Original purchaser
This warranty extends to the original purchaser only and is not transferable. Coverage ends if the tub is sold, gifted or otherwise changes hands.
If you've acquired an AlumiTub secondhand, you're still very much part of the community. Email hi@alumitubs.com and we'll send you the manual, help you identify any parts you need, and get you set up.
Making a Claim
-
Email hi@alumitubs.com with your order number, a description of the issue and when you first noticed it, and the following:
- Photos or a short video of the affected area, and of the tub as a whole
- For a leak: where the water is coming from, with the tub full, and photos of the base and the tub sitting on it, taken low and from the side, showing what is underneath it right along the edge
- Your most recent water test results with their dates, and when the anodes were last changed
- Whether the tub has been left full in freezing weather, and on an Electric or Hybrid, whether there has been a power outage
- Anything that has been added to, removed from or changed on the tub or its equipment
- We'll review it and come back to you, and may ask for more photos or a fresh water test.
- We'll confirm the cause and the remedy. We assess the cause of every claim from the evidence provided. Where a claim is covered, we supply the replacement part, shipped directly to you with fitting instructions. Where the evidence points to one of the exclusions above, or the information requested isn't provided, the repair falls outside this warranty, and we'll still help you work out what's needed to put it right.
Supply of a replacement part, or repair at AlumiTubs' discretion, is the sole remedy under this warranty, and does not extend the original warranty period.
Outside of warranty, we're still here. Every part of an AlumiTub is replaceable and available to buy, including on tubs well past their coverage period and on tubs bought secondhand. If something has gone wrong, email us. We'd rather help you fix it than have it sit unused.
Limitations
This warranty extends to the original purchaser only, is not transferable, and covers normal use of the product in accordance with the specifications and care instructions provided at purchase. Those instructions bind anyone who uses, cleans, treats or services the tub, and the original purchaser is responsible for ensuring they are followed. No warranty, express or implied, applies to any condition resulting from accident, acts of third parties, environmental conditions, misuse, abuse, delivery or transportation damage, modification or alteration by any person, inadequate maintenance or cleaning, or damage caused by chemical treatments, cleaning products or protective coatings applied to the product.
In no event shall AlumiTubs be responsible for consequential or incidental damages, including loss of use, inconvenience, labor or service costs, rental or booking income, commercial loss, or damage to personal property, whether direct or indirect and whether arising in contract or tort. In no event shall AlumiTubs' liability exceed the purchase price of the product.
This warranty gives you specific legal rights. You may also have other rights which vary by province, state or country, and nothing in this warranty limits any statutory rights that cannot be excluded by law.
Introduced April 2025 to mark our 25 year history. Applies to AlumiTubs delivered on or after that date. Questions about your coverage, warranty or otherwise, are always welcome at hi@alumitubs.com.