Loading comparison…
Ranking live prices across retailers.
Best aluminium greenhouses, compared
Aluminium-framed greenhouses from the UK retailers we track, ranked by value and specification with live prices. Aluminium is the maintenance-free default — the comparison shows glazing, base options and stated pane sizes side by side.
Independent comparison: we may earn a commission when you buy through links on this page. It never affects how we rank products — see our method.
| # | Product | Our rating | Best price | Retailers | Dimensions (cm) | Features |
|---|---|---|---|---|---|---|
| 1 |  8'x12' Palram Canopia Balance Large Walk In Aluminium Framed Greenhouse (2.4x3.6m)Top pick Palram Canopia | 69 | £646.99 | Buy Sheds Direct, Shedstore | W244 × L367 | walk-inaluminium-framerain-guttersroof-ventslockablemaintenance-free |
| 2 |  6'x8' Halls Aluminium Frame Polycarbonate Greenhouse (1.92x2.56m) Halls · 4 options | 67 | £713.99 | Buy Sheds Direct, Shedstore | W192.8 × L256.8 × H187.9 | sliding-dooropening-roof-ventguttering |
| 3 | 65 | £812.99 | Buy Sheds Direct, Shedstore | W240 × L240 | walk-inlockable-doorslow-thresholduv-protectedtwin-wallbell-shaped | |
| 4 |  10 x 6 ft Aluminium Hobby Greenhouse with Base Garden Sanctuary | 60 | £329.99 | Garden Sanctuary | W139 × L64 × H14 | slidecanopy |
| 5 |  8'x12' Palram Canopia Bella Large Walk In Silver Aluminium Framed Greenhouse (2.4x3.6m) Palram Canopia · 3 options | 59 | £1,072.99 | Buy Sheds Direct, Shedstore | W240 × L360 | walk-indouble-doorsroof-ventssteel-base |
| 6 | 32 | £690.11 | Bloomcabin UK | — | ||
| 7 | 22 | £2,267.90 | Bloomcabin UK | — | storage | |
| 8 | 22 | £2,854.97 | Bloomcabin UK | — | canopy | |
| 9 | 22 | £3,521.37 | Bloomcabin UK | — | storage | |
| 10 | 22 | £1,141.33 | Bloomcabin UK | — | ||
| 11 | 16 | £1,405.06 | Bloomcabin UK | — | ||
| 12 |  Greenhouses made of aluminum | Aluminum - Classic Greenhouse Unbranded · 4 options | 16 | £1,411.15 | Bloomcabin UK | — | |
| 13 | 14 | £1,495.26 | Bloomcabin UK | — | ||
| 14 | 12 | £2,052.34 | Bloomcabin UK | — | ||
| 15 |  Bloomcabin Bioclimatic Aluminum Pergola | Bloomcabin Pergola Unbranded · 2 options | 12 | £2,925.45 | Bloomcabin UK | — |
Why we rank it this way
Our default rating weights value for money and specification equally, then safety certification and how widely the product is stocked across retailers.
Weights: priceVsBand 30% · spec 30% · safetyCert 20% · availabilityBreadth 20% — full method on how we rank.
FAQs
- Do aluminium greenhouses need a base?
- Most are designed for a perimeter base kit (often sold separately — check the listing) on slabs or concrete. Skipping it twists the frame and cracks glazing; it's the most common assembly mistake.
- Powder-coated or mill (silver) aluminium?
- Structurally identical: powder-coating adds colour and a small premium. Mill finish weathers to a dull grey but lasts just as long — pick on looks and budget.