Greenhouses
Greenhouses
Galvanised steel arches or a Swedish pine frame, 2.10 to 4.00 m wide. Twin-wall polycarbonate, screwed down at every edge.
From £899 · Delivered in 1–4 weeks from order
Greenhouses and outdoor saunas for British gardens
SteelRoot · galvanised steel
Galvanised steel greenhouses for exposed plots.
Five SteelRoot models, 2.10 to 4.00 m wide and 4 to 12 m long. Every panel is screwed down at its edges, and the ground anchors come in the box.
SteelRoot from £899 · Delivered in 1–4 weeks from order
- Panels screwed downat every edge, not clipped in
- Ground anchors in the boxno concrete on firm, level soil
- Your choice of heatThe Cabin Three electric is priced cabin only; choose PC70 or PC70E. Other electric editions include PC70; wood-fired editions include a stove and flue kit.
- Manuals online firstread every step before you pay
- To your kerbUK mainland, greenhouses in 1–4 weeks
The Cabin
Outdoor saunas
For three, four or six. The Cabin Three electric starts as a cabin-only kit. Other electric editions include a Harvia PC70; wood-fired editions include a stove and flue kit. Choose stones and check delivery on each product page.
From £2,350 · Typically 2 to 4 weeks from order to your kerb
Greenhouses
Choose a greenhouse by the width of your plot
Six greenhouses from 2.10 to 4.00 m wide, narrowest first. Every one has twin-wall polycarbonate screwed down at its edges and ground anchors in the box. Size calculator
2.10 m wide
SteelRoot · arched
SteelRoot Climber 2.10
For a narrow plot, with room to stand up inside.
From £949See Climber 2.10
2.60 m wide
NORDIC · Swedish pine
NORDIC wooden greenhouse
A 45 × 45 mm pine frame with 1.2 mm galvanised steel at every joint.
From £999See NORDIC
2.64 or 2.99 m
SteelRoot · arched
SteelRoot Garden 2.64
A compact arch for two beds and a central path.
From £949See Garden 2.64
2.77 or 2.99 m
SteelRoot · straight walls
SteelRoot Gable 2.77
Upright walls under a pitched roof, for tall crops at the sides.
From £999See Gable 2.77
3.14 m wide
SteelRoot · arched
SteelRoot Plot 3.14
Two growing rows and a working path down the middle.
From £899See Plot 3.14
4.00 m wide
SteelRoot · arched
SteelRoot Grand 4.00
Our widest arch, for a kitchen garden under cover.
From £1,299See Grand 4.00
Outdoor saunas
Choose a sauna by how many will use it
Each size comes electric or wood-fired. The Cabin Three electric starts as a cabin-only kit. Other electric editions include a Harvia PC70; wood-fired editions include a stove and flue kit. Choose stones and check delivery on each product page. One crate, set down at your kerb, typically 2 to 4 weeks from order to your kerb. You build it yourselves from an illustrated manual.
6 seats
The Cabin · outdoor sauna
The Cabin Six Two-Tier
Two tiers, a changing room and a covered porch.
Before you buy
What usually goes wrong, and what we do about it
We read hundreds of reviews and every question customers send us. These are the worries that come up most, each with our answer and the page where you can check it.
Wind
Will it still be standing after the first storm?
What we do. Every panel is screwed down at its edges with a washer, not clipped in. Ground anchors come in the box, and SteelRoot arches stand 1 m apart, or 0.67 m apart as an option for exposed plots.
How a SteelRoot is builtAssembly
Can two of us actually build it?
What we do. The full assembly manual for every model is on its page before you order, so you can read every step before you decide. SteelRoot fixings come bagged and counted.
Read a manualDelivery
When will it arrive, and where will they leave it?
What we do. Delivered in 1–4 weeks from order: one pallet, set down at your kerb by a tail-lift lorry.
Delivery termsBase
Do we need concrete, and what do we stand it on?
What we do. Not on firm, level soil: the ground anchors in the box hold it down. Each SteelRoot page has a base plan for every length.
See a base planPanels
Will the panels crack or work loose?
What we do. Twin-wall polycarbonate, not glass, 4 mm as standard or 6 mm, screwed down with a washer at every edge. Defects in the panels are covered by the warranty.
What the panel cover includesWarranty
Is the warranty real, or all small print?
What we do. The full terms, exclusions included, are published before you order. A claim is one email with photos, and you get a decision within 7 working days.
Read the warranty
Full cost
What will it cost, all in, before the first session?
What we do. The Cabin Three electric is priced without a heater; choose PC70 or PC70E on its product page. Other electric editions include a Harvia PC70; wood-fired editions include a stove and flue kit. Each sauna page lists what is not in the crate, so nothing turns up later.
What comes in the crateWho you pay
Who am I paying, and will the crate turn up?
What we do. Waldenhaus Limited, company number 16877766. Before your crate leaves the works we ask for a photo of it packed, and send it on to you.
Our company detailsElectrics
Will our electrics run it?
What we do. The Harvia PC70 runs on single-phase from its own 35 A circuit, which suits most UK homes; your electrician decides the rest. Each electric page sets out what to show them.
Show this to your electricianWood-burning
Are we allowed to burn wood where we live?
What we do. Councils declare smoke control areas street by street. Put your postcode in on a wood-fired page: we tell you which council decides, and confirm your address with them before anything is built.
Check your postcodeFit and access
Will it fit, and can we get it into the garden?
What we do. 185, 240 or 340 cm by 220 cm on the ground. One crate, set down at your kerb, typically 2 to 4 weeks from order.
How delivery works
Garden architecture for British weather
Terms first. Then the order.
Everything you need to decide is on the page before you pay: the terms, the manuals and who you are buying from.
- Waldenhaus Limited, registered in England and Wales, company number 16877766.
- The full warranty terms, exclusions included, published before you order.
- Every assembly manual online before you buy.
- 14 days from delivery to change your mind, unused and in the original packaging.
- Questions first? Email or WhatsApp, and an expert answers.
Plan it first
Guides and calculators
Work out the size, the paperwork and the cost before you order. All tools
- Greenhouse size calculatorMatch your household and what you grow to a greenhouse size.
- Planning permission checkerWhether a greenhouse needs permission where you live, across the UK.
- Wind and anchor calculatorAnchoring for your region, your exposure and your soil.
- Ten-year cost calculatorWhat a greenhouse costs over ten years: the kit, the base, delivery and upkeep.
- Greenhouse buying guideSize, material, base, assembly and warranty, in one read.
- Outdoor sauna guidesPlanning rules, electrics, heaters, running costs and delivery.
Still deciding?
Not sure which one?
Tell us the plot, how exposed it is and what you want to grow, or where the sauna will stand. We will point you to the simplest option, even if it is a smaller one.