Best Greenhouses & Cold Frames UK (2026) — Page 3
Glass, polycarbonate and mini greenhouses for growing in the UK climate.
Read our full Best Greenhouse UK (2026) guide.
#13 Pick
Grandio Elite 8x8 Greenhouse Kit, 10mm Twin-Wall PolycarbonateRated 4.5 out of 5 stars (60)
- Polycarbonate
- Serious/large-scale growing
- 10 Years
Currently unavailable
Pros
- Heavy-duty 1.6mm profile aluminium frame
- 10mm twin-wall polycarbonate insulates well through UK winters
- Barn-style roofline adds extra headroom
Cons
- Significant investment and assembly time
#14 Pick
GARDEBRUK 'Sunlight' 6 x 8ft Polycarbonate Greenhouse with Slide Door and 2 WindowsRated 4.1 out of 5 stars (132)
- Polycarbonate
- Large gardens
- 2 Years
£274.99
Pros
- Aluminium frame with polycarbonate glazing resists corrosion
- Sliding door and two windows for ventilation
- Walk-in size suits growing a full range of crops
Cons
- Assembly takes a full day for two people
#15 Pick
Venus 5000 Green Aluminium Greenhouse, 6ft x 8ft, Horticultural GlassRated 4.2 out of 5 stars (84)
- Glass
- Small gardens
- 10 Years
Currently unavailable
Pros
- Horticultural glass gives excellent light transmission
- Green-painted aluminium frame adds a traditional look
- Sturdy build suited to permanent placement
Cons
- Glass panels are more fragile than polycarbonate during transport and assembly
#16 Pick
Outsunny 6x8 FT Polycarbonate Greenhouse with Base and Raised BedRated 4.4 out of 5 stars (267)
- Polycarbonate
- Large gardens
- 2 Years
Currently unavailable
Pros
- Includes integrated raised bed for direct planting
- Aluminium frame with temperature-controlled window
- Steel foundation base included
Cons
- Assembly takes a full weekend for two people
#17 Pick
XEMQENER Walk-in Polycarbonate Greenhouse, 4ft x 6ftRated 4.2 out of 5 stars (198)
- Polycarbonate
- Small gardens
- 1 Year
Currently unavailable
Pros
- 4mm polycarbonate panels block harmful UV rays
- Aluminium frame with sliding door and vent window
- Compact footprint for smaller plots
Cons
- Base not included on this version
#18 Pick
Palram Canopia Glory Greenhouse 6x8, Grey/ClearRated 4.6 out of 5 stars (231)
- Polycarbonate
- Small gardens
- 10 Years
£1609.00
Pros
- 10mm thick UV-resistant double wall panels
- Extra-large door with floor ramp for easy access
- Roof window with automatic opener for ventilation
Cons
- Higher price than standard hobby greenhouses