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Aluminium Greenhouses
Greenhouse Accessories
Aluminium Greenhouse Best Sellers
About Our Aluminium Greenhouses
Aluminium greenhouses for sale offer the perfect balance of durability, low maintenance, and modern design for UK gardeners. With frames that will not rot, rust, or require annual treatment, these greenhouses provide 25+ years of reliable growing space.
Our collection features over 300 models from trusted, industry-leading brands including Elite (UK Made), Vitavia, and Palram, available in 10 attractive colours.
Key features include:
- Standard or heavy-duty aluminium frames
- Choice of horticultural glass, toughened safety glass, or polycarbonate glazing
- Integrated roof vents for temperature control
- Built-in guttering systems
Whether you need a compact 6x4 greenhouse for herbs or a spacious 8x10 greenhouse for serious growing, our aluminium collection offers exceptional value. Every greenhouse includes our comprehensive warranty (ranging from 5-25 years depending on model) and free UK mainland delivery. Professional installation services are available nationwide through our qualified fitting teams.
Choosing Your Aluminium Greenhouse
Size selection depends on your available space and growing ambitions. Popular starter sizes include 6x4ft models (perfect for balconies), while serious gardeners prefer 8x6ft or larger configurations. Our 8x6 greenhouses strike an ideal balance between internal space and overall garden footprint.
💡 Glazing choice significantly impacts performance, wind resistance, and safety. For the unpredictable British climate, we strongly recommend 3mm Toughened Safety Glass. It offers the best combination of 100% clarity, excellent safety, and superior wind resistance due to its heavy, rigid long-pane design. While twin-wall polycarbonate offers better insulation, its lightweight nature makes it unsuitable for open or windy locations. Small polycarbonate greenhouses, such as lean-to models, start from just £175.
Consider your growing requirements when choosing features. Roof vents provide essential temperature regulation (reducing internal temperatures by up to 15°C), while automatic vent openers eliminate manual monitoring. Many gardeners also appreciate lean-to greenhouses for space-efficient growing against walls or fences.
Our greenhouse buyers guide provides detailed comparisons to help you select the perfect model for your needs.
Key Features to Consider
Frame Construction
- Standard Aluminium Frames: Our high-quality standard frames offer excellent durability and value for most gardeners.
- Heavy-Duty Box-Section Frames: For maximum strength in exposed locations, premium models like the Elite Titan and Janssens ranges use robust box-section aluminium profiles, providing superior wind resistance.
- Powder-coated finish: Available in 10 colours including forest green, silver, and anthracite grey.
- Corner bracing: Reinforced joints prevent frame flexing in strong winds (standard on high-spec models).
- Frame Warranty: Long-term warranties (up to 25 years on select models) demonstrate confidence in construction quality.
Glazing Options
- 3mm Horticultural Glass: The traditional, lowest-cost option. It provides excellent light transmission but breaks into large, sharp shards upon impact.
- 3mm Toughened Safety Glass: Our top recommendation for UK gardeners. This glass is heat-treated for strength and shatters into small, harmless pebbles if it ever breaks. Crucially, it is supplied in long, heavy, rigid panes, making it the most wind-resistant glazing choice for the British climate.
- Polycarbonate Glazing: A virtually unbreakable and lightweight twin-wall panel. While it offers excellent insulation and light diffusion, it is also very flexible. In windy, exposed environments, polycarbonate can flex and blow out of the frame, potentially causing serious damage. We only recommend polycarbonate for very sheltered areas or where safety is the absolute highest priority, such as schools, nurseries, or allotments.
Ventilation Systems
- Roof vents: Standard on most models, provide essential temperature control.
- Side louvre vents: Optional extras for enhanced air circulation.
- Automatic vent openers: Wax-filled cylinders expand with heat to open the vent automatically, closing as it cools. No electricity required.
- Temperature regulation: Proper ventilation maintains optimal 18-25°C growing temperatures.
Additional Features
- Integrated guttering: Collects rainwater for sustainable garden irrigation.
- Sliding doors: Single or double configurations with smooth-running tracks.
- Threshold options: Standard or low-threshold designs for easy access.
- Staging compatibility: Purpose-built shelving systems maximise growing space.
Frequently Asked Questions about Aluminium Greenhouses
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How much do aluminium greenhouses cost?
Aluminium greenhouses start from £175 for a small polycarbonate lean-to, with premium 12x8ft structures reaching £18,950. Most popular 6x8ft and 8x6ft models range between £800-£2,200, offering excellent value considering their 25+ year lifespan and minimal maintenance requirements.
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Do I need planning permission for an aluminium greenhouse?
Most aluminium greenhouses under 30 square metres do not require planning permission under UK permitted development rights. However, you must maintain a 1-metre distance from boundaries and avoid positioning on front gardens. You should always check with your local planning authority for specific requirements in your area.
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How long do aluminium greenhouses last?
Quality aluminium greenhouses typically last 25-30 years with minimal maintenance. The powder-coated aluminium frames resist corrosion and will not rot like wooden alternatives. Regular cleaning and occasional seal replacement ensure maximum lifespan, making them exceptional long-term investments.
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What's the difference between aluminium and wooden greenhouses?
Aluminium greenhouses require virtually no maintenance (no annual treating or painting), offer better wind resistance, and cost around 30-40% less long-term. Wooden greenhouses provide superior insulation but need annual treatment and replacement every 15-20 years. Aluminium also allows larger glazed areas for maximum light.
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Can I install an aluminium greenhouse myself?
Most aluminium greenhouses can be self-assembled using the provided instructions and basic tools. Typical assembly time ranges from 6-12 hours for two people. However, our professional installation service ensures perfect construction. Please note: this service does not include base preparation. A firm, level base must be completed before our installers arrive.
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How do I add accessories like staging or extra vents?
We make this simple. On each greenhouse product page, we list all compatible accessories — from staging and shelving to extra vents and rainwater kits. You can select everything you need in one place, ensuring it is perfectly tailored to your chosen greenhouse model before adding it to your basket. This means you see only accessories that actually work with your specific greenhouse. We have been selling greenhouses for over 15 years and know exactly what fits.
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Do you provide foundation advice?
Yes, a perfectly level and firm foundation is essential for a long-lasting greenhouse and is required for our installation service. A paving slab or concrete base is best. See our useful step-by-step guides:
✅ Ready to Start Growing? Browse our complete collection of aluminium greenhouses and discover why thousands of UK gardeners choose our quality, service, and value. With free UK delivery and expert support, your perfect growing space is just a click away.
Need guidance? Call our greenhouse specialists on 0800 098 8877 or email sales@greenhousestores.co.uk for personalised recommendations.
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