(512) 256-0220

Mon-Sat 9am-5pm EST

best glass greenhouse in garden

Best Glass Greenhouses

Table of Contents

If you want a greenhouse for the optics, you will probably buy a glass greenhouse. It’s traditional. It’s elegant. The market is full of Polycarbonate greenhouses, nowadays, because it gives the peace of mind. However, if you are set on glass you should have a look at these best glass greenhouses!

The different types of materials come in their own set of durability, price, maintenance, aesthetic appeal, and strength. Some materials may not be suited for the greenhouse design while some may not work in all kinds of climate. One of the important materials a greenhouse needs to have is one that can transmit light to its walls and roofs. 

Why glass is considered the best?

When it comes to greenhouse designs, the most expensive but the highest quality is one that is built of glass. Glass is heavy and could be the toughest material to install in a greenhouse. When it is fixed right and when protective measures are in place to protect them, they can give a lifetime service.

Size may matter but having a small glass greenhouse will still give the same enjoyment as a large glass greenhouse.

Two glass greenhouses with the text: The Best Glass Greenhouses - You should consider buying right now

Why glass panels are the best options to have for the greenhouse?

A glass-paneled greenhouse can be a quite expensive investment, but its durability and aesthetic value are factors that make them the best option. If budget is not the issue and if your greenhouse design is appropriate for glass, the following evaluation should be considered:

Risks of shipping glass panels

Glasses need to be freighted firmly inside its case to stop any movement and sudden breakage. One more thing to worry about is moisture damage particularly if the shipping is scheduled during humid or rainy seasons. It is helpful to talk to your supplier,  and ask for more advice and plan ahead.

There is a portion of uncertainty with glass greenhouses because even the most cautious gardeners may unintentionally crack a glass. Just make sure you get toughened safety glass or Polycarbonate to prevent any eventual mishaps and injuries.

Polycarbonate greenhouses are practically strong and indestructible. It properly distributes the light and is so easy to fit. Although, Polycarbonate sheets are not scratch resistant as opposed to glass.

The choice between tempered and annealed glass

An annealed glass should never be considered for any greenhouse design. It might be strong but once it is broken, it shatters into sharp shards that can prove dangerous to life and limb.

Tempered glass, on the other hand, is stronger and shatter-proof about four to six times compared to annealed glass. It can break, but when it does, it only shatters into small square parts that are not likely to put anyone in danger. This means that when it comes to greenhouse designs, tempered glass is a better option than annealed glass.

Tempered glass is available in several varieties including double-tempered, single-tempered, and more. There are varied tensile strengths to every kind of tempered glass.

unkempt glass greenhouse

The choice between single-pane or double-pane glass

The factors to consider before deciding to use either single-pane or double-pane glass include:

  • Heating costs
  • Cooling costs
  • Budget

Single-pane tempered glass works for greenhouse designs located in places where there are no issues concerning the costs of cooling and heating. The double-pane glass should be considered when you live in areas that experience extremely cold climates.

Maintaining the glass panels

Condensation inside the glass panels can be prevented when they are properly sealed. This holds for both double-paned and triple-paned glass. Maintaining the glass becomes easier when they get glass coatings. For instance, the material coating, some self-cleaning glass brands have the ability to break down the accumulation of dirt on the panels simply by using sunlight. Water is also prevented from beading on them because of the coating that sheds off the water. These coatings can certainly add to the glass price, but they are practical options that save you the trouble of washing them often. 

Best Glass Greenhouses – Our Top Picks

If you want to purchase a glass greenhouse, you should pick one with top-notch quality. You want something with good insulation because glass already provides less insulation than Polycarbonate. You also want a sturdy frame that will give you enough stability for the not-so-nice days of the year. So, let’s have a look at our top picks:

Janssens Royal Victorian Greenhouse

If you want a greenhouse that is elegant, durable, and efficient, the Janssens Royal Victorian Greenhouse design is a perfect choice. It has a stronger aluminum frame and is better insulated because of rubber seals. You can add an accessory kit or reinforcement kit in order to make it the perfect greenhouse package.

Royal victorian glass greenhouse

Choosing the Janssens Royal Victorian Greenhouse includes the following features:

  • 4mm glass for glazing
  • The misting system is included where all it needs is to be attached to the faucet
  • Stronger, larger, and thicker aluminum frames compared to other brands
  • More headspace with the tall design
  • 6in high foundation is included in the base model
  • A glass door that can be installed either at the sides, back or front of the greenhouse
  • A louver window and manual/automatic roof vents for continuous airflow
  • Available in varied sizes to match property area and budget
  • Optional with Premium Kit: Full-length narrow top shelf, inside shade cloths, full length with pull ribbons, long seed tray
  • Optional reinforcement kit to further increase stability for extreme winds and snow
  • Made in Belgium
  • 15 years limited warranty

Juliana Junior Greenhouse 9ft x 12ft

All Juliana Junior Greenhouses feature a sturdy aluminum frame with 3mm glass panels. The hinged barn-style door provides better airflow to your plants without letting annoying rodents inside the greenhouse. The lock and key feature secure your important things inside.

Fully set up Juliana Junior Greenhouse
  • Electrostatically painted in dark grey with black doors and windows OR treated Aluminum frame in silver
  • Hinged barn-style door with lock and key
  • Silicone and wire clips for insulation
  • 3mm glass panels
  • Sidewalls are 5.2 ft high
  • Roof windows
  • Gutter with two downspouts
  • Roof prepared for decorations
  • Constructed to the highest class standards
  • Can withstand prevailing wind speeds and volumes of snow
  • Made in Denmark
  • 12 years for replacements or repair of faulty parts & 2 years on painted parts, where fitted

Juliana Oasis Greenhouse 10ft x 10ft

The unique feature of this particular greenhouse design from Juliana is its high ceiling. A higher ceiling gives hobbyists or serious gardeners the freedom to experiment with different plant and fruit varieties. It could work great as a greenhouse with a sitting area among lush green plants. Like other Juliana greenhouses, this one has long 3mm toughened glass panels that you can seal with silicone and wire clips along the frame.

Included in the kit:

  • 3mm toughened glass as the glazing material
  • Auto openers in the center of the roof along with roof vents
  • Made of the highest quality materials
  • The roof is designed to accommodate decorations
  • Available in aluminum black or anthracite black
  • The low doorstep and the double barn-style doors allow easy access to people and working tools
  • The height of 9ft 1in at the center enables more headspace
  • Roof opens automatically in the center
  • Two years warranty for the painted parts
  • 12 years warranty on the repair of faulty parts or replacements
  • Made in Denmark

Want more information about our best glass greenhouses? Leave us a comment or call us!
Picture of Jesse James
Jesse James

Jesse James, an Army Veteran, now shares his passion for gardening through engaging articles on Greenhouse Emporium. Leveraging his experience and love for nature, Jesse provides practical advice and inspires others on their gardening journey.

All Posts
Related Posts
Want To Learn More About Greenhouses?
Leave a Reply

Your email address will not be published. Required fields are marked *