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About our stali alloy greenhouses
Stali Greenhouses represent over 30 years of British greenhouse engineering, offering maintenance-free aluminium structures with 4mm toughened safety glass as standard. Built with powder-coated aluminium profiles, these greenhouses won't rust, rot, or need repainting, saving you hours of maintenance every year. The Stali range includes Classic freestanding models, Lean-To designs well suited to terraced gardens, and Dwarf Wall greenhouses that combine traditional brick aesthetics with modern glazing. Every greenhouse comes with a 12-year warranty and free UK mainland delivery. Available in 7ft and 10ft widths, Stali's modular design means you can start with a compact 7x5 model at £1,499 and expand later as your growing ambitions develop.
Why We Chose This Range
“We brought the Stali Alloy range into our collection because it bridges the gap between a greenhouse and a high-end garden room. Most aluminium greenhouses are just for growing, but Stali's Greenhouse-Shed combos use Accoya wood and solid alloy panels to create a workspace that is as durable as the growing area. The 12-year warranty isn't just a number; it reflects the higher wall thickness of the alloy profiles, which prevents the 'frame-shudder' seen in cheaper models during 50mph+ UK winds.”
, Matt, Founder of Greenhouse StoresMatt's installation tip: the "diagonal check"
Stali greenhouses use precision-engineered glass rules. If your base is just 3mm out of square, the 4mm toughened glass won't seat into the channels correctly, which leads to glass rattling or even cracking under pressure.
When you build your concrete or slab base, don't just measure the sides. Measure the diagonals from corner to corner. They must be identical. If you are building a Dwarf Wall model, use a laser level for the brickwork, any 'humper' in the mortar will put stress on the alloy sill and void your 12-year structural warranty. Read our full base guide here.
Key features that make stali different
Superior build quality
- 4mm toughened safety glass throughout (33% thicker than the industry standard)
- Aluminium frames that won't corrode or require maintenance
- Built-in guttering with optional rainwater collection kits
- Sliding doors with low-threshold access (easier than hinged doors)
Extensive customisation options
- Choice of 30 RAL powder-coated colours (from classic green to anthracite grey)
- Optional self-cleaning glass that reduces maintenance by 50%
- Roof cresting and finials for traditional Victorian styling
- Models available with integrated storage sections
Uk service standards
- Professional installation service covering all UK mainland postcodes
- Technical support team available at 0800 098 8877
- 12-year structural warranty on all components
- Free delivery to your garden (not just kerbside)
Choosing your stali greenhouse model
Stali classic greenhouses
The traditional freestanding design works in any garden layout. Available in widths of 7ft or 10ft, with lengths from 5ft to 17ft. Most popular sizes are the 7x9 (£2,199) and 10x8 (£2,899). These models suit vegetable growers who need maximum floor space and ventilation.
Stali lean-to greenhouses
Attach directly to your house or garden wall, saving 40% of space compared to freestanding models. The 7ft wide lean-to fits perfectly on Victorian terrace walls, while 10ft models work for detached properties. Prices start at £1,499 for a 7x5 lean-to. These capture heat from your house wall, cutting heating costs by approximately 25% in winter months.
Stali dwarf wall greenhouses
Combine a 2ft brick or timber base with glass panels above. This design improves heat retention by 15% and creates natural staging at the perfect working height (reducing back strain). The brick base also protects lower glass from accidental damage. Expect to add £300-500 to standard model prices for dwarf wall construction.
Stali greenhouses with storage
Select models include a separate storage compartment with solid panels, ideal for tools, compost, and greenhouse accessories. This keeps your growing space organised without needing a separate shed.
Selecting the right size for your garden
Measure your available space carefully, Stali sizes are quoted as width x length (e.g., 10x17 means 10ft wide, 17ft long). Check each product's "Minimum Base Size" specification, which includes the door opening and any overhanging eaves. A 7x9 greenhouse typically needs a 7ft 6" x 9ft 6" base.
Most gardeners underestimate the space they need. A 6x8 greenhouse feels cramped once you add greenhouse staging and shelving. We recommend choosing one size larger than your initial estimate. The 8x10 and 10x12 models offer the best balance of growing space and cost efficiency, with prices ranging from £2,499 to £4,299.
For base preparation guidance, see our full greenhouse base information which includes detailed diagrams for different foundation types.
Frequently asked questions about stali greenhouses
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What kind of base do I need for a Stali greenhouse?
Stali greenhouses require a firm, level base made from concrete slabs, a concrete raft, or timber framework. The base must be within 5mm of level and support the entire footprint plus 3 inches extra around all edges. Read our detailed greenhouse base buying guide for step-by-step instructions on DIY and professional installation options.
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What is Accoya storage?
Our premium Stali Fusion models use Accoya wood cladding for the storage section. Accoya is a chemically treated sustainable timber that is virtually rot-proof and carries a 50-year ground-contact guarantee. It offers the aesthetic of wood with the maintenance-free life of aluminium.
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How much do Stali greenhouses cost?
Prices start at £1,499 for a 7x5 lean-to model and range up to £7,999 for a 10x17 classic with premium features. Most popular models (8x10 to 10x12) cost between £2,899 and £4,299. All prices include 4mm toughened glass, delivery, and the 12-year warranty.
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Is professional installation available?
Yes, professional installation is available across UK mainland postcodes at competitive rates. Our installation teams are greenhouse specialists who typically complete a 8x10 model in 6-8 hours.
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What does the 12-year warranty cover?
The warranty covers all aluminium framework components, glazing bars, door mechanisms, and fixings against manufacturing defects for 12 years from purchase. Glass breakage from accidental damage isn't covered.
Ready to choose your stali greenhouse?
Browse our complete range of Stali models above. Need help selecting the right model? Call our greenhouse specialists on 0800 098 8877 for expert advice tailored to your garden and growing plans.