Verified Customer
Great product , just what I was looking for . Delivery was faster than expected too
About our Juliana greenhouse collection
The Juliana collection pulls together 45+ greenhouse models from three manufacturers we trust: Elite, Vitavia, and Janssens. Every model here has been through our hands on real installs, and each one meets our standards for frame strength, glazing spec, and how well it holds up over time.
We've been fitting greenhouses for over 16 years, so we know what lasts and what doesn't. This range covers everything from a compact 6x6 for a first-time grower to a 15x20 Kathedral orangery for someone who wants the garden to stop people in their tracks. Frame materials include Core-Vect aluminium from Elite, powder-coated steel from Vitavia, and RAL-painted aluminium from Janssens. Toughened safety glass comes as standard on every model, and warranties run from 10 to 20 years.
Browse our full range of aluminium greenhouses to compare across all brands. For tighter spaces, see small greenhouses. After something with brick base walls? Try our dwarf wall greenhouses.
"We built this collection around the greenhouses we're happiest fitting. The Elite Titan range has the strongest aluminium frame we've ever worked with. The Vitavia Phoenix in black looks brilliant in modern gardens - it's the one customers photograph and share on Instagram. And the Janssens orangeries are in a different league for anyone who wants a real statement piece. Every model here earned its place by performing well on actual installs, not just looking good in a brochure."
- Matt W, Greenhouse Stores
Types of greenhouses in this range
Compact hobby greenhouses
The Elite Titan 6x6 and 6x8 suit smaller gardens. Starting from £1,429, these 6ft wide greenhouses give you room for staging, seed trays, and a few tomato plants. The Titan frame at this size is actually stronger than most 8ft greenhouses from other brands.
Mid-range 8ft wide greenhouses
Our most popular width. The Elite Titan 800 series starts at £1,759 for the 8x6, while the Vitavia Phoenix 8x8 in black starts at £1,099. Both give you a central path with benching on each side, which is what most growers want.
Large 10ft to 12ft greenhouses
The Elite Titan 1000 (10ft wide, from £2,879) and Titan 1200 (12ft wide, from £3,259) give you proper workshop-level space. We recommend these for allotment clubs and anyone who propagates seriously.
Dwarf wall greenhouses
The Vitavia Cassandra in black starts at £1,199. Dwarf walls hold heat better in winter and look more finished than a full-glass greenhouse. Available in 8x10, 8x12, and 8x14.
Orangery greenhouses
The Vitavia Sirius (£2,350) and Janssens Pyramide (from £7,740) are the ones people buy when they want something that looks as good as it grows. The Janssens Kathedral at £20,990 is a 15x20 showpiece with a cathedral-style roof.
Pent roof greenhouses
The Janssens Modern Pent Roof range starts at £7,800 for the 10x10. Belgian-made, thick aluminium profiles, single-slope roofline. These look right at home next to flat-roofed extensions and contemporary garden design.
Quick guide: choosing your width
6ft wide: suits small gardens. One row of staging plus a walkway. 8ft wide: our best seller. Staging on both sides with a central path. 10ft+ wide: room for multiple growing zones, a potting area, and overwinter storage. Measure your base area first and allow 150mm clearance round the perimeter for drainage and access when cleaning.
Matt's installation tip
Every greenhouse in this range needs a dead-level base. We see more problems from dodgy bases than anything else. For the Elite Titan and Zenith, we recommend a concrete pad with J-bolts cast in at 600mm centres. The Vitavia Phoenix uses a bolt-down base kit that works on concrete or paving slabs. Janssens models are fussier - you need a concrete base built to the exact external dimensions in the spec sheet. Even 10mm out will cause panel alignment problems. We always check base levels with a laser before we start any install.
Juliana collection: model comparison
| Model | Width | Price from | Glazing | Frame colour | Matt's verdict |
|---|---|---|---|---|---|
| Elite Titan 6x6 | 6ft | £1,429 | 4mm toughened | Silver, green, grey, black | Strongest compact frame we fit |
| Elite Titan 8x6 ★ Matt's pick | 8ft | £1,759 | 4mm toughened | Silver, green, grey, black | Best value entry point for serious growers |
| Vitavia Phoenix 8x8 | 8ft | £1,099 | 3mm hort. / 4mm toughened | Black | The one people photograph |
| Elite Zenith 800 9x8 | 8ft | £3,029 | 4mm toughened | Silver, green, grey, black | Extra headroom, premium finish |
| Vitavia Cassandra 8x10 | 8ft | £1,199 | 4mm toughened | Black | Best dwarf wall in the range |
| Elite Titan 1000 10x10 | 10ft | £2,879 | 4mm toughened | Silver, green, grey, black | Workshop-grade space |
| Janssens Pyramide 10x10 | 10ft | £7,740 | 4mm toughened | RAL colour options | Proper garden centrepiece |
| Janssens Kathedral 15x20 | 15ft | £20,990 | 4mm toughened | RAL colour options | As big as it gets |
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Matt's pick: best value in this rangeBest for: First greenhouse buyers who want a frame that'll last 20+ years Why I recommend it: "I've fitted hundreds of these. The Core-Vect aluminium frame is the strongest block-bar section I've worked with. You get double sliding doors and a 10-blade louvre vent as standard. At 8ft wide there's staging on both sides with a clear path down the middle. Honestly, it's the greenhouse I'd buy for my own garden." Price: From £1,759 |
Need something wider? Browse our 10ft wide greenhouses or 12ft wide greenhouses. After a particular style? See our orangery greenhouses or Victorian greenhouses.
Frequently Asked Questions
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What sizes are available in the Juliana collection?
Widths from 6ft to 15ft, lengths from 6ft to 20ft. The smallest is the Elite Titan 6x6 at just under 2m wide. The largest is the Janssens Kathedral at 15x20, covering nearly 28m². The 8x6 outsells everything else in this range because it fits the majority of UK gardens.
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How much do they cost?
From £1,199 to £20,990. The Vitavia Cassandra 8x10 dwarf wall sits at the entry point. Mid-range, the Elite Titan 8x6 is £1,759. Janssens orangeries start at £7,740 for the Pyramide 10x10. All prices include VAT and free UK mainland delivery.
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Do all models come with toughened glass?
Yes. Every model in this range ships with toughened safety glass. Elite and Janssens use 4mm toughened glass meeting EN12150 safety standards. The Vitavia Phoenix also offers horticultural glass and polycarbonate if you'd prefer those. Toughened glass is five times stronger than horticultural and crumbles into blunt granules rather than shards if it breaks.
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Can I get it professionally installed?
Yes, on every model, UK-wide. We've been fitting greenhouses from all three brands in this range for over 16 years. We build on your prepared base, glaze, seal, and test every vent and door. Standard models take a day. Janssens orangeries usually take two. Ask for an installation quote when you order.
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What base do I need?
A level concrete pad or paving slab base. Elite greenhouses need concrete with J-bolts at 600mm centres for the bolt-down system. Vitavia models can go on paving slabs using a bolt-down base kit. Janssens are the fussiest - you need concrete built to the exact millimetre dimensions in the spec sheet, or the panels won't line up. We send base plans with every order.
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Which one handles wind best?
The Elite Titan range. Its Core-Vect block-bar aluminium frame with cantilever bracing is the strongest system we fit. Bar capping holds the glass firmly in high winds. We've installed Titans on exposed hilltop sites in Cumbria and the Scottish Borders with no issues. The powder-coated frame options add extra corrosion resistance for coastal spots.
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What's the warranty?
10 to 20 years, depending on the manufacturer. Elite: 20 years on frame and base. Vitavia: 10 years on the frame. Janssens: 15 years structural. All cover manufacturing defects in the aluminium. Glazing and accessories have separate warranty terms on each product page.