Call Now: (877) 760-8500 Design Your Greenhouse Partner Portal

Janssens vs. The Competition

Discover how the Janssens Victorian stands apart from other greenhouse brands

Not all Victorian greenhouses are created equal. The Janssens ORIGINAL Victorian greenhouse series is engineered in Belgium for gardeners who demand strength, beauty, performance, and longevity. From its charming European decorative cresting to its heavy-duty framework and thick 4 mm tempered glazing, Janssens Victorian glasshouses are built to perform no matter the climate and look great doing it.  Here’s how it compares to the competition on the features that matter most.

Side-by-Side Comparison

Janssens Victorian Greenhouses
Others
Glazing Thickness
Janssens Victorian Greenhouses 4mm tempered safety glass glazing
Others Clear polycarbonate panels, not tempered glass
Ample Height
Janssens Victorian Greenhouses 6 ft high sidewalls for greater interior space and comfort
Others 5 ft high sidewalls
Flexible Layout
Janssens Victorian Greenhouses Doors can be placed on any of the four sides for flexible layout design
Others Door located only on the gable end
Manual & Automatic Control
Janssens Victorian Greenhouses Roof windows available with spindle or automatic openers
Others Manual roof openers only
Ventilation
Janssens Victorian Greenhouses Includes louvre side windows for enhanced airflow
Others Louvre windows not included
Ornamental Detailing
Janssens Victorian Greenhouses Decorative cresting and finials included for classic Victorian character (and to keep the birds off)
Others No decorative cresting or finials
Wind & Snow Load
Janssens Victorian Greenhouses Engineered to withstand 120 mph winds and up to 2 feet of snow
Others Lower wind and snow load performance
Accessories
Janssens Victorian Greenhouses Optional accessories, including mosquito netting and flyscreens for doors and windows
Others Not available
Shading
Janssens Victorian Greenhouses Multiple shading options available
Others Limited shading options
Hybrid Options
Janssens Victorian Greenhouses Hybrid models available with advanced roof polycarbonate and glass sidewalls
Others Not available
Custom Colors
Janssens Victorian Greenhouses Two stock color options with custom colors available by special order
Others Available in one color only, no custom color options
Customer Support
Janssens Victorian Greenhouses Expert customer service team based on 20+ years of selling and assembling these units, with long-term parts support
Others Limited product knowledge, inconsistent support, short product life cycles, and no hands-on assembly experience
Climate Suitability
Janssens Victorian Greenhouses Suitable for use all across the country
Others Not suitable for many parts of the country with high winds and snow

Why It Matters

Superior Glazing for Real Insulation

The strength, clarity, and insulation value of greenhouse glazing make a big difference in performance — and Janssens gets it right. Unlike many competitors that use thin, flimsy polycarbonate or tempered glass, Exaco Janssens Royal Victorian VI 34 Greenhouse and other Janssens models are equipped with 4 mm tempered safety glass as standard, delivering significantly better impact resistance and weather durability. The thicker tempered glass holds up far better in wind, hail, and heavy loads, helping stabilize interior temperatures and protect plants year‑round. The full‑length glass panels also provide a cleaner look with fewer seams and better light transmission than the overlapping glass sheets found on many lower‑end greenhouses.

Built to Stay Put

A greenhouse’s performance is only as reliable as its structure and how confidently it locks to the ground.

Janssens greenhouses feature heavy‑duty anodized aluminum framing, stainless steel hardware, and secure fixed channels for glazing panels, rather than flimsy clips or snap‑in tracks. This robust build provides superior rigidity and resistance to high winds and weather stress, ensuring your greenhouse stays solid where others might falter. With thicker profiles and better seals around the glass, Janssens models are engineered to endure long‑term outdoor exposure while maintaining a secure, well‑sealed interior.

Expert Support That Lasts

Investing in a greenhouse is a long‑term commitment, and the support you get afterwards matters.

Exaco takes pride in having real expertise when you have questions. We also stand behind our structures with continued parts availability — so you can replace a panel or component years from now if needed. This contrasts with many competitors who rotate product lines quickly and can leave owners without reliable guidance or replacement parts when it’s time for maintenance.