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ExacoJanssens
Exaco Janssens Cathedral Victorian Greenhouse with Large Cupola 15 x 20 Ft
15 x 20 Ft2 colors available
from$45,999$49,995
Premium greenhouses for beautiful spaces.
Timeless greenhouses made for growing, gathering, and bringing more life to your garden.
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- Exceptional Expert Support
Affordable financing options available. Learn More
Expert Planning
Help choosing the right size, glazing, and setup.
Installer Support
Guidance finding experienced installers near you.
Free Shipping
Curbside freight delivery on greenhouse orders.
15-Year Warranty
Long-term coverage on Janssens greenhouse frames.
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Janssens Modern M36 Greenhouse 10 x 20
10 x 20ft
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RIGA XL 9 Greenhouse 14' x 29'6"
from$22,999$24,998.75
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Exaco Janssens Modern M34 Greenhouse 10 x 15 ft
10 x 15 ft
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Exaco Janssens Royal Victorian Orangerie 13 x 16 ft T-Shape
2 colors available
from$21,999
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RIGA XL 6 Greenhouse 14' x 19'10"
from$18,499$19,998.75
Save $1,498.75
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RIGA XL 5 Greenhouse 14' x 16'5"
from$17,250$18,748.75
Why Planet Greenhouse
A better way to buy your greenhouse.
A greenhouse is a big decision, and most gardeners have questions before they're ready to order. From the right size to the right installer, our team of experts helps you compare options, plan the details, and move forward with confidence.
How we can help
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Model Selection
We help you compare styles, sizes, materials, and layouts for your space.
Site Planning
We help you think through foundation needs, delivery access, and setup prep.
Installer support
Share your zip code and we'll help connect you with experienced installers near you.
Honest guidance
Get honest recommendations on what you need now and what can wait.
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Royal Victorian Greenhouses
Classic European styling with premium aluminum framing and flexible size options.
Cedar Greenhouses
Warm, traditional greenhouses that evoke a softer, more inviting natural garden feel.
Modern & Lean-To Greenhouses
Clean, space-conscious greenhouses for contemporary gardens, walls, and tighter layouts.
Orangerie Greenhouses
Conservatory-style greenhouses made for growing, seating, citrus, and garden-room use.
Tunnel & Arch-Shaped Greenhouses
Practical curved structures for efficient growing and strong light coverage.
what works in your space
Shop greenhouses by size
Start with the space you have, then compare greenhouse styles that fit your garden and growing plans.
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From backyard growing to garden-room dreams
Royal Victorian VI 46We love it
“Thank you so much for all your help to make this happen for us. Your help was very much appreciated and outstanding customer service care.”
Royal Victorian VI 36The service was top notch
“Thank you so much for all your help to make this happen for us. Your help was very much appreciated and outstanding customer service care.”
Royal Victorian VI 46We love it
“Thank you so much for all your help to make this happen for us. Your help was very much appreciated and outstanding customer service care.”
Royal Victorian VI 36The service was top notch
“Thank you so much for all your help to make this happen for us. Your help was very much appreciated and outstanding customer service care.”
Financing Now Available!
Explore low-rate financing options for qualified customers, including greenhouse structures, accessories, and foundation costs.
Need help planning?
Not sure which model, size, glazing, or setup makes sense for you? Our team can help you compare options, plan your site, and understand the steps before you order.
Frequently Asked
Quick answers around choosing, ordering, delivery, and setup.
Yes. Our team can help you compare styles, sizes, materials, and growing needs so you can narrow down the right fit. For expert guidance, you can contact us here.
Yes. You can browse and order our greenhouses directly online with secure checkout and full delivery coordination.
Absolutely. With proper insulation, ventilation, and optional heating, our greenhouses support growing through every season.
It can be either. Many customers choose to assemble themselves with the included guides, while others work with our recommended local installers.
Start with a quick chat with our team. Share your goals, space, and climate, and we'll guide you toward the best options. We know how important this project is for you.
Not at all. We'll help you measure your space and recommend a footprint that suits your needs and growing ambitions.
Our greenhouses use rust-resistant aluminum frames paired with tempered safety glass or twin-wall polycarbonate, so they stay durable and beautiful through every season.
Tempered glass gives a classic, crystal-clear look with maximum light transmission, while twin-wall polycarbonate adds extra insulation and spreads light evenly to help prevent leaf scorch. Both are available across our greenhouse range, so you can pick the option that fits your climate and growing goals.
Most greenhouses can be assembled over a weekend with two people. Larger models may take a little longer, and clear step-by-step guides are included with every kit.
Yes. A level base such as a concrete slab, paving, or a purpose-built base kit keeps the structure stable and square over its lifetime.
We offer free curbside freight delivery on greenhouse orders within the contiguous US. Any surcharges for remote areas are shown clearly at checkout.
In-stock greenhouses typically ship within 3–5 business days, with freight delivery arriving 1–2 weeks later depending on your location.
Our greenhouses are backed by manufacturer warranties, including up to a 15-year warranty on Janssens frames. Full coverage details are listed on each product page.
Reach out with your order number and a quick photo, and we'll arrange a replacement part right away at no cost for qualifying issues.
Greenhouse Planning
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Helpful guides for planning your greenhouse
Learn the basics around glazing, sizing, foundations, delivery, and installation.
The Best Greenhouse Materials: Which Should I Choose?
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Are you trying to decide which greenhouse roofing material is ideal for you? Then, you've got to the correct place! Your selection of roofing material may make or break your...
Guide on How to Build a Victorian Greenhouse
Guide on How to Build a Victorian Greenhouse Introduction If you're an avid gardener looking to take your gardening to the next level, building a Victorian greenhouse could be a...