Glasshouses & Polytunnels
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Glasshouses & Polytunnels For Sale Ireland
Looking to grow your own vegetables at home?
Whether you’re a new gardener or a seasoned grower, you’ll find some compelling reasons to invest in a good glasshouse or polytunnel.
Glasshouses and Polytunnels
Glasshouses and polytunnels are great for helping extend your growing season, provide protection to sensitive plants and produce an abundance of vegetables, fruits, and flowers and are a great way to stay self-sufficient by growing your own vegetables.
Your glasshouse and polytunnel also offer a predictable environment to grow vegetables and flowers where they may be protected from extreme weather conditions.
At Keans Claremorris, we stock a wide array of polytunnels and Greenhouses in a variety of sizes so you are sure to find the perfect greenhouse for you.
Glasshouses and polytunnels from Keans are delivered flat packed and will require assembly. If you would like help installing your greenhouse, be sure to include that in your order.
Greenhouse Polytunnels
A greenhouse polytunnel is an ideal solution for gardeners who want to grow more vegetables, fruit, and flowers in a protected environment. It helps extend the growing season, shields plants from unpredictable weather, and creates the warm, sheltered conditions crops need to thrive.
Perfect for beginners and experienced growers alike, a garden polytunnel makes it easier to grow tomatoes, cucumbers, and other vegetables from early spring through to late autumn. Whether you’re looking for a walk-in polytunnel greenhouse, a heavy-duty option for Irish weather, or an affordable way to start growing your own, our range of Greenhouses offers practical solutions for every garden.
Greenhouse Accessories & Seeds
Looking to enhance your gardening experience? Explore our range of greenhouse accessories along with watering cans, hoses, reels, and a wide selection of flower seeds and herb seeds to get the most from your growing space.
Why Choose a Polytunnel Greenhouse?
A polytunnel gives you many of the benefits of a greenhouse, often with more flexibility and excellent value. Polytunnels are a popular choice for gardeners because they are durable, practical, and ideal for protecting plants from wind, rain, frost, and pests.
Key Benefits of a Greenhouse Polytunnel
- Extends the growing season (start earlier, harvest later)
- Protects crops from bad weather, including wind and heavy rain
- Creates a warmer growing environment for stronger plant growth
- Improves yields by keeping conditions more stable
- Helps reduce pests by creating a protective growing space
- Supports healthier plants with better airflow and humidity control
Greenhouse vs Polytunnel - What’s the Difference?
A greenhouse typically uses glass or polycarbonate panels and is designed to be a permanent structure. A polytunnel uses a curved frame with a durable plastic cover, offering more flexibility and often better value.
A Polytunnel Is Ideal If You Want:
- a cost-effective growing solution
- more growing space for vegetables
- an easier setup option
- something practical for seasonal planting
A Greenhouse Is Ideal If You Want:
- a more permanent structure
- rigid insulation for colder months
- a fixed growing space for year-round use
Many gardeners use both depending on what they grow.
What is the difference between "Strong" and "Sigma" Greenhouses?
The main difference between these greenhouse types lies in their frame design.
The Strong greenhouse features a profile-type frame with an internal support structure, making it ideal for adding shelves and hanging baskets.
The Sigma greenhouse uses a 20mm x 40mm tube-type frame without internal supports, creating an open interior space. Optional galvanized steel shelves can be added. Sigma models also feature slightly wider doors and windows. Despite these differences, both models offer equal strength and durability.
What Can You Grow in a Polytunnel?
A greenhouse polytunnel creates the perfect environment for popular crops that need warmth and protection. Great Crops for Polytunnel Growing
- Tomatoes
- Peppers
- Cucumbers
- Strawberries
- Herbs
- Salad crops
- Seedlings and young plants
- Flowers and bedding plants
With a more stable growing environment, crops can grow faster and more consistently, especially where outdoor growing seasons are shorter.
How to Choose the Best Polytunnel for Your Garden
Choosing the right polytunnel comes down to size, strength, and how you plan to use it.
1) Choose the Right Size
A walk-in polytunnel greenhouse gives you more flexibility and space to grow more in one season.
2) Pick a Strong Frame
If your garden is exposed, look for a heavy duty polytunnel with a strong frame for better stability.
3) Consider Cover Quality
A thick, durable cover improves the life of your tunnel and helps protect crops against temperature changes.
4) Ventilation Matters
Good airflow reduces condensation and helps prevent common plant issues like mould and mildew.
Shop Polytunnels for Every Garden
At Kean’s Claremorris, we offer a range of greenhouse polytunnels to suit gardens of all sizes, from compact backyards to larger growing spaces. Each polytunnel is chosen to perform well in Irish weather, helping you grow more at home with confidence.
Many gardeners choose a walk-in polytunnel greenhouse because it provides:
- more room for planting beds
- space for shelves and storage
- easier access for watering and harvesting
- better airflow and comfort while working inside
Whether you’re looking for a small garden polytunnel, a heavy-duty steel frame option, or a reliable polytunnel for growing tomatoes and vegetables, Keans has practical solutions backed by local expertise and support. Visit us today!
Choose Keans Claremorris
At Keans Claremorris, we stock trusted garden solutions built for Irish homes and gardens. Whether you’re a beginner starting small or a seasoned grower looking to expand, you’ll find great value and reliable support, online and in-store.
FAQs
Are polytunnels worth it?
Yes, a greenhouse polytunnel is one of the best ways to extend the growing season, protect crops from harsh weather, and increase your growing success year-round.
What are the benefits of a polytunnel greenhouse?
Polytunnels help create a warmer environment for plants, improve growing consistency, increase crop yield, protect against pests, and allow you to start growing earlier in the year.
Can you use a polytunnel in winter?
Yes, many gardeners use polytunnels throughout winter for hardy crops and winter greens. For best results, ensure your polytunnel is well-anchored and ventilated correctly.
What is the best location for a polytunnel?
A sunny, sheltered area with good drainage is ideal. Try to place your polytunnel where it gets the most daylight and is protected from strong winds.
What’s the difference between a greenhouse and a polytunnel?
A greenhouse is usually a permanent structure made from glass or polycarbonate panels. A polytunnel is typically a flexible frame covered with plastic sheeting and is often a more affordable option for larger growing areas.