Founding release. Free US shipping and a 30 day trial.
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Founding release

Grow all year. Whatever the weather.

A walk-in garden room in rust-proof aluminium and twin-wall polycarbonate. Warmer nights, longer seasons, built to last decades.

Shop the Greenhouse Free US shipping. 30 day trial.
6×6 ft walk-in 4mm twin-wall polycarbonate Rust-proof aluminium

Free US shipping and returns

Delivered to your door, flat-packed and ready to build. No delivery surcharge.

30 day trial

Grow with it through a full season window. If it is not right, return it for a refund.

6 month warranty

Anchor and register per the guide and we stand behind the frame for 6 months.

The idea

A growing system built for every season. On any plot.

One structure that holds warmth through cold nights, softens harsh sun, and gives you a dry, walk-in room to work in. Whatever you grow, it grows longer here.

Serrahaus greenhouse in a garden setting
How it is built
Ventilation.
Insulation.
Durability.

A hinged roof vent and a full sliding door create real cross-flow, so heat escapes and fresh air moves through. Add the auto-vent opener and it manages itself.

4mm twin-wall polycarbonate is double-glazed, trapping a layer of air that holds warmth on cold nights and diffuses harsh midday sun so leaves never scorch.

A rust-proof aluminium-alloy frame with slant corner supports and four ground anchors. Polycarbonate flexes and will not shatter like glass. Built to stand for decades.

Greenhouse
24°C
Roof vent, auto +
Room to grow

Whatever you grow, there is room for it here.

The materials

Engineered from better materials.

Twin-wall
Double-glazed polycarbonate traps a layer of air between two skins for real insulation.
UV-protected
A coated outer skin diffuses direct sun so leaves do not scorch on the brightest days.
Polycarbonate
Flexes under impact and will not shatter like glass. Safer around children and pets.
Aluminium
A rust-proof alloy frame with slant corner supports. It does not rot, rust or warp, and stands for decades.
Built to human scale

A room you walk into, not a box you reach into.

6×6 ft
Walk-in footprint that stands on a patio, plot or lawn.
6'7"
Ridge height you stand under, with headroom to work.
Serrahaus greenhouse render
Every part, considered

Five things that make it last.

Serrahaus greenhouse parts breakdown
1Roof vent
2Sliding door
3Twin-wall panels
4Aluminium frame
5Ground anchors
1

Roof vent

Hinged, opens for hot air to rise out and escape.

2

Sliding door

Wide opening for easy access and low-level airflow.

3

Twin-wall panels

4mm double-glazed polycarbonate that holds warmth.

4

Aluminium frame

Rust-proof alloy with slant corner supports.

5

Ground anchors

Four anchors fix it to level ground for stability.

The most productive six feet in your garden.

Where it sits

More than a pop-up. Less than a glasshouse.

Pop-up mini greenhouse$50 to 150
Serrahaus$1,695
Bespoke glasshouse$4,000+
Glazing
PVC film
4mm twin-wall polycarbonate
Glass
Frame
Steel or plastic
Rust-proof aluminium
Aluminium or timber
Walk-in height
No
Yes, 6'7" ridge
Yes
Ventilation
None
Roof vent + sliding door
Varies
Shatter-safe
n/a
Yes, polycarbonate
No, glass shatters
Anchoring
Stakes
4 ground anchors included
Concrete base
Assembly
DIY
2 people, about a day
Contractor
Price
$50 to 150
$1,695
$4,000+

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Buy with confidence

Two promises we stand behind.

30 Day Grow-Season Trial

Build it, plant it, live with it. If it is not right within your 30 day trial, return it for a full refund and we cover the return.

All-Weather Promise

Anchor it per the guide and register your greenhouse, and we stand behind the frame with a 6 month warranty.

Good questions

Everything you might ask.

Will it withstand wind and snow?

Fix all four ground anchors to level ground and the slant corner supports brace the frame against wind. Clear heavy snow from the apex roof as you would any garden structure, and the pitched roof helps it slide. Anchoring is the single most important step, so follow the guide closely.

Does the polycarbonate yellow over time?

The panels carry a UV-protected outer coating that resists yellowing and keeps light transmission stable for years of normal outdoor use. Wipe them down each season to keep them clear.

How hot does it get in summer?

The hinged roof vent lets hot air rise and escape while the sliding door draws cooler air in low down, creating real cross-flow. On the hottest days open both, and add the temperature-triggered auto-vent opener so it manages itself while you are away.

Do I need a foundation?

No concrete base is required. You need reasonably level ground, then the four included ground anchors fix the frame down. A firm, level surface such as paving, compacted earth or a timber base all work well.

How hard is assembly?

Two people can put it together in about a day using basic hand tools. The panels and frame are pre-cut and the guide walks you through each step in order. Take your time squaring the base and the rest follows.

Can I heat it in winter?

Yes. The twin-wall polycarbonate holds daytime warmth into the night, and you can add an electric or paraffin greenhouse heater for hard frosts. Many growers keep tender plants going through winter this way.

Do I need planning permission?

Rules vary by locale and by how you site the structure. Many gardens do not require permission for a greenhouse this size, but always check with your local authority before you build.

What is the returns policy?

You have a 30 day trial. If the greenhouse is not right for you, contact us for a return and a full refund, and we cover the return shipping. Orders are processed in 24 to 48 hours and delivered in 3 to 5 business days.

Grow more. Worry less.

Shop the Greenhouse