Choosing the right aluminium greenhouse usually comes down to size, glazing, frame strength and how exposed your garden is. A compact 6ft wide model is ideal for smaller gardens and beginner growers, while larger 8ft wide greenhouses give you more room for staging, vegetables, overwintering plants and comfortable access. For extra peace of mind, consider toughened glass, polycarbonate panels or a stronger-framed model if your garden is windy or used by children and pets.
Aluminium vs Wooden Greenhouse Comparison
Not sure whether aluminium or timber is right for your garden? Here’s a quick comparison to help you choose the greenhouse style that best suits your space, budget and growing plans.
| Feature |
Aluminium Greenhouses |
Wooden Greenhouses |
| Appearance |
Slim, practical and available in modern finishes. |
Natural, traditional and full of character. |
| Maintenance |
Very low maintenance with no timber treatment needed. |
Needs occasional care or treatment, usually once a year. |
| Durability |
Naturally resistant to rust, rot and decay. |
Long-lasting when properly maintained. |
| Price |
Often more affordable than timber models. |
Usually more expensive due to material and craftsmanship. |
| Light Levels |
Slim frames allow plenty of light into the greenhouse. |
Thicker frames can create a warmer, more substantial look. |
| Insulation |
Less naturally insulating than timber. |
Better natural warmth from the timber frame. |
| Best For |
Gardeners wanting value, practicality and easy upkeep. |
Gardeners wanting charm, warmth and a premium garden feature. |
Aluminium Greenhouse FAQs
Here are 10 of the most common questions we’re asked about aluminium greenhouses, along with practical advice to help you choose the right model for your garden, budget and growing plans.
1. Are aluminium greenhouses worth buying?
From our experience supplying greenhouses to gardeners across the UK, aluminium greenhouses are well worth buying if you want a strong, practical and low-maintenance growing space. Aluminium is lightweight, naturally resistant to rust and does not need painting or treating in the same way as timber. This makes it a popular choice for gardeners who want a reliable greenhouse that can handle everyday use, changing weather and regular watering without needing much upkeep.
2. How long does an aluminium greenhouse last?
A good-quality aluminium greenhouse can last for many years when it is installed correctly on a firm, level base. Aluminium does not rot, warp or decay, so the frame itself is naturally well suited to outdoor use. In our experience, the overall lifespan often depends on the quality of the frame, the glazing, the fixings, the base and how exposed the garden is to strong winds. Choosing a reputable brand and the right specification for your location can make a big difference.
3. Do aluminium greenhouses rust?
Aluminium greenhouses do not rust in the same way as steel because aluminium is naturally corrosion-resistant. This is one of the main reasons many customers choose aluminium for UK gardens, especially if they want a greenhouse that can stay outside year after year with minimal maintenance. Powder-coated aluminium models can also provide an attractive coloured finish while adding an extra layer of protection to the frame.
4. Are aluminium greenhouses better than wooden greenhouses?
Aluminium greenhouses are often the better choice if you want something practical, affordable and easy to maintain. We often find that customers choose aluminium because it offers excellent value, slim framing, good light levels and a wide choice of sizes. Wooden greenhouses, on the other hand, are usually chosen for their traditional appearance, natural warmth and premium garden style. The best option depends on whether you value low maintenance and price, or character and natural insulation.
5. What is the best glazing for an aluminium greenhouse?
The best glazing depends on how you plan to use your greenhouse. From our experience, toughened safety glass is a popular upgrade because it is stronger than standard horticultural glass and breaks into smaller, safer pieces if damaged. Horticultural glass is often the most budget-friendly option, while polycarbonate glazing can be a practical choice for family gardens, schools or exposed areas where impact resistance is important. Always check the glazing thickness and specification before buying.
6. Do aluminium greenhouses need a base?
Yes, we would always recommend fitting an aluminium greenhouse onto a firm, level and secure base. A proper base helps keep the frame square, improves stability and makes the greenhouse easier to assemble. Many aluminium models can be installed onto a dedicated metal base, concrete, paving slabs or a well-prepared brick base, depending on the product. Getting the base right is especially important in windy areas, as it helps anchor the greenhouse securely.
7. Are aluminium greenhouses suitable for windy gardens?
Aluminium greenhouses can be suitable for windy gardens, but it is important to choose the right model and install it properly. In our experience, stronger frames, additional bracing, toughened glass and a secure base are all worth considering if your garden is exposed. Premium ranges, such as some Elite and Halls models, often offer more substantial framing and stronger specifications than basic entry-level greenhouses. If you are unsure, our team can help you choose a model that suits your garden’s position.
8. What size aluminium greenhouse should I buy?
From our experience, customers often wish they had chosen a slightly larger greenhouse once they start filling it with plants, staging, pots and growing accessories. A 6ft wide aluminium greenhouse is a popular starting point for many gardens, while 8ft wide models offer more room for serious growing, walkways and staging on both sides. If space and budget allow, choose the largest size you can comfortably fit while still leaving room around the greenhouse for access, cleaning and maintenance.
9. Are aluminium greenhouses good in winter?
Yes, aluminium greenhouses can be used throughout winter to protect plants, start early seedlings and extend the growing season. The aluminium frame itself is not as naturally insulating as timber, but the greenhouse still provides valuable shelter from wind, rain and frost. For colder months, many gardeners add bubble insulation, fleece, heaters, greenhouse staging or thermal covers to create a more stable growing environment for tender plants.
10. Which aluminium greenhouse brand should I choose?
The best aluminium greenhouse brand depends on your budget, garden size and the specification you need. We offer a wide choice of trusted brands, including Halls, Halls Signature, Vitavia, Elite, Palram and Access. Entry-level models are ideal for beginners and everyday growing, while premium ranges often include stronger frames, thicker glazing, extra bracing, wider doors and more finish options. From our experience, it is worth comparing frame strength, glazing type, ventilation and included accessories before choosing.
Top 3 Advantages Of An Aluminium Greenhouse
1. Low maintenance: Aluminium does not need painting, staining or treating, making it an excellent choice for gardeners who want a practical greenhouse without ongoing timber care.
2. Excellent value: Aluminium greenhouses are often more affordable than equivalent wooden models, making them a popular option for beginners, allotment growers and experienced gardeners who want more growing space for their budget.
3. Strong, slim and weather-resistant: Aluminium frames are lightweight, corrosion-resistant and slim enough to let plenty of light into the greenhouse, helping to create a bright, productive space for seedlings, vegetables, fruit and tender plants.
Greenhouse Brands vs Pricing
With over 300 different models available, it can a little overwhelming when trying to find that perfect greenhouse to match both your needs, garden and budget. We offer such a wide range of popular UK brands to ensure there's one suitable for every gardener.
Although each greenhouse we sell has been approved by us and will be perfectly capable of offering many years of service and enjoyment, when it comes to brands and pricing, the phrase 'you get what you pay for’ certainly rings true. Especially with aluminium greenhouses, higher quality models will usually have stronger framing and some will have additional bracing making them better suited for locations that are prone to high winds or heavy amounts of snow. Among other aspects worth considering is glazing, whether it is toughened, horticultural or polycarbonate and its thickness. As an example, toughened glazing on a Halls Popular greenhouse is supplied at 3mm thick, whereas the Elite Titan greenhouse range is supplied with 4mm thick toughened glass panels, offering an additional 33% thickness!
Why Buy From Us?
We understand that there are many options and retailers out there when shopping for a new aluminium greenhouse, so what makes GardenSite different and more trustworthy compared to other online outlets? Here’s what we know and think...
- We're available on the phone 7 days a week for expert advice
- We've been selling garden products online since 1999
- Over 5000 customers have left real and trusted product reviews
- We offer low prices and a friendly, dedicated service
- Enjoy free delivery within mainland UK across most of our range
More From Our Greenhouse Guides
If you’re looking for more information to help you which greenhouse would be right for you and your garden, why not read one of our handy articles:
