Skip to content
Family Owned Business
832-363-8000
Excellence Since 2020

Spend To Unlock Free Shipping

Menu Icon
Cathedral 15X12X20.ft Victorian Greenhouse
Cathedral Victorian - Cathedral 15X12X20.ft Victorian Greenhouse
Cathedral Victorian - Cathedral 15X12X20.ft Victorian Greenhouse
Cathedral Victorian - Cathedral 15X12X20.ft Victorian Greenhouse
Cathedral 15X12X20.ft Victorian Greenhouse
Cathedral 15X12X20.ft Victorian Greenhouse
Cathedral Victorian - Cathedral 15X12X20.ft Victorian Greenhouse
Cathedral Victorian - Cathedral 15X12X20.ft Victorian Greenhouse
Cathedral Victorian - Cathedral 15X12X20.ft Victorian Greenhouse
Cathedral Victorian - Cathedral 15X12X20.ft Victorian Greenhouse
Cathedral Victorian - Cathedral 15X12X20.ft Victorian Greenhouse
Cathedral Victorian - Cathedral 15X12X20.ft Victorian Greenhouse
Menu Icon
Cathedral 15X12X20.ft Victorian Greenhouse
Cathedral Victorian - Cathedral 15X12X20.ft Victorian Greenhouse
Cathedral Victorian - Cathedral 15X12X20.ft Victorian Greenhouse
Cathedral 15X12X20.ft Victorian Greenhouse
Cathedral 15X12X20.ft Victorian Greenhouse
Cathedral Victorian - Cathedral 15X12X20.ft Victorian Greenhouse
Cathedral 15X12X20.ft Victorian Greenhouse
Cathedral 15X12X20.ft Victorian Greenhouse
Cathedral Victorian - Cathedral 15X12X20.ft Victorian Greenhouse
Cathedral Victorian - Cathedral 15X12X20.ft Victorian Greenhouse
Cathedral Victorian - Cathedral 15X12X20.ft Victorian Greenhouse
Cathedral Victorian - Cathedral 15X12X20.ft Victorian Greenhouse
Cathedral Victorian - Cathedral 15X12X20.ft Victorian Greenhouse
Cathedral Victorian - Cathedral 15X12X20.ft Victorian Greenhouse
Cathedral 15X12X20.ft Victorian Greenhouse

Janssens / Exaco

Cathedral 15X12X20.ft Victorian Greenhouse

$35,998.99
Honor Discount
Add more sliding doors to your gh
Low Threshhold Sliding Door Entry Option 1
Selection will add $0.00 to the price

30 DAYS (1).png__PID:9d9e4af9-b2b5-4b00-8ba2-3e0faa03ca76

Brand Direct

AUTH Dealer

free curbside.jpg__PID:6e7349e9-df97-4e96-8a81-d6d1467faaf7

Curbside Delivery

Free Crating

30 DAYS (1).png__PID:112f4a14-7d2a-4c9d-9e4a-f9b2b59b008b

Excellent Service

100% Satisfaction

Price Match

Tax Included

CA1.jpg__PID:66d15600-2903-4f60-ad0d-31b97c173b78

SPACIOUS. FLEXIBLE. LUXURIOUS

The Cathedral is one of our largest greenhouses, featuring a distinctive cupola that enhances height and curb appeal. With a wider footprint than the Royal Victorian line, it offers significantly more floorspace. 

The Cathedral’s flexible design allows doors and windows to be installed anywhere. If you seek a stunning, durable backyard showstopper, the Cathedral is the ideal choice. Note that lead times may be longer due to limited stock.

WHY JANSSENS

  • Thicker, stronger aluminum profiles at the same price
  • Rust-proof stainless steel hardware
  • 4mm tempered glass offers superior insulation and weather resistance
  • Heavy-duty rubber seals secure panels
  • Full-sized glazing panels for a cleaner look
  • Includes 4” foundation frame, often an extra cost elsewhere
  • TUV and GS certified tempered glass.
  • 15 years warranty

WHY CATHEDRAL

  • Durable 4mm tempered glass and 17 gauge top-quality aluminum frame
  • Distinctive cupola for added height and appeal
  • Wind Resistant up to 120 mph & 25 PSF ground snow load 
  • Spacious design with more floorspace
  • Flexible door and window placement
  • Designed for both gardening and recreational use

DETAIL

298

Area (Sq.Ft)

12'2"

Peak Height

6'8"

Sidewall Height

19'11"

Length

15'

Width

25°

Roof Pitch

  • Black /Bronze/Green
  • 4" High Large Bottom Frame/Base
  • (4) Roof Window
  • (2) Push Out Side Window
  • (2) Automatic Louvre Window
  • (4) Roof Spindle
  • (1) Single Sliding Door
  • (1) Double Hinged Door
  • Gutters with Downspout

SUPPORT

  • Cathedral Greenhouse Foundation Construction Guide
  • Cathedral Greenhouse Assembly Instructions
  • Hanging Window Manual
  • Warranty Document
  • Call us for Installer
  • Customization
  • About us
Show Room Virtual Tour
cath-4.jpg__PID:e7469082-7277-46c5-98c8-cfd1650135bc

FAQs

REVIEWS

Store Reviews

  • 5
    223 (91.4%)
  • 4
    16 (6.6%)
  • 3
    3 (1.2%)
  • 2
    2 (0.8%)
  • 1
    0 (0%)
98% of customers rate this company 4- or 5-stars
Newest to Oldest
  • Favorite Reviews
  • Highest to Lowest
  • Newest to Oldest
All Ratings
  • All Ratings
  • 5 ★ Reviews
  • 4 ★ Reviews
  • 3 ★ Reviews
  • 2 ★ Reviews
  • 1 ★ Reviews
Kevin M. Verified Customer
12-20-24

Good

Rebecca S. Verified Customer
11-30-24

Roger has been very helpful and answered all of my questions.

Deborah R. Verified Customer
11-29-24

Awesome customer service!!!

Dale H. Verified Customer
11-14-24

very helpful with my questions

John H. Verified Customer
11-14-24

first timer, looking forward to my new greenhouse.

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)

ACCESSORIES

CA-ACC-1.png__PID:ad2a9e08-51e2-4ce9-8c4b-24404ede8e65
CA-ACC-2.png__PID:9e0851e2-bce9-4c4b-a440-4ede8e659e07
double-hinged-doors-24.jpg__PID:4f6e63a3-ba1c-408d-88fc-fda888192d49

Door & Shelving

  • Additional Sliding Doors
  • Additional Hinged Doors
  • Lowered Threshholds for Doors
  • Top Shelf
  • Bottom Shelf (Seed Tray)
  • Slatted Shelving
roof-vent-1.jpg__PID:63a3ba1c-c08d-48fc-bda8-88192d49f92d

Window

  • Additional Roof Vents
  • Push-Open Side Windows
  • Additional Louvre Windows
  • Covers for Louvre Windows
  • Restraint Cable System for Roof Vents
vic-shade-curtain-1.jpg__PID:ba1cc08d-08fc-4da8-8819-2d49f92df0b3

Climate Moderation

  • Shade Curtain
  • Exhaust Fan
  • Solar Powered Exhaust Fan
IMG_3711_493x.progressive.heic.webp__PID:add4f49f-67b1-4057-b50a-73a618c9bbce

Miscellaneous

  • Wheelbarrow Ramp
  • Scroll Supports
  • Solar Light

You may also like

Modern Lean-to Style Glass Greenhouse
Modern Victorian Greenhouse - Modern™ Victorian 10X9X15.ft M34 Sloping Roof Greenhouse
Modern Victorian Greenhouse - Modern™ Victorian 10X9X15.ft M34 Sloping Roof Greenhouse
Modern Victorian Greenhouse - Modern™ Victorian 10X9X15.ft M34 Sloping Roof Greenhouse
Modern Lean-to Style Glass Greenhouse
Modern Lean-to Style Glass Greenhouse
Modern Lean-to Style Glass Greenhouse
Modern Lean-to Style Glass Greenhouse
Modern Victorian Greenhouse - Modern™ Victorian 10X9X15.ft M34 Sloping Roof Greenhouse
Modern Victorian Greenhouse - Modern™ Victorian 10X9X15.ft M34 Sloping Roof Greenhouse
Modern Victorian Greenhouse - Modern™ Victorian 10X9X15.ft M34 Sloping Roof Greenhouse
Modern Victorian Greenhouse - Modern™ Victorian 10X9X15.ft M34 Sloping Roof Greenhouse
Modern Victorian Greenhouse - Modern™ Victorian 10X9X15.ft M34 Sloping Roof Greenhouse
Modern Victorian Greenhouse - Modern™ Victorian 10X9X15.ft M34 Sloping Roof Greenhouse
Modern Victorian Greenhouse - Modern™ Victorian 10X9X15.ft M34 Sloping Roof Greenhouse
Modern Lean-to Style Glass Greenhouse
Modern Lean-to Style Glass Greenhouse
Modern Victorian Greenhouse - Modern™ Victorian 10X9X15.ft M34 Sloping Roof Greenhouse
Modern Victorian Greenhouse - Modern™ Victorian 10X9X15.ft M34 Sloping Roof Greenhouse
Modern Lean-to Style Glass Greenhouse
Modern Victorian Greenhouse - Modern™ Victorian 10X9X15.ft M34 Sloping Roof Greenhouse
Modern Lean-to Style Glass Greenhouse
Modern Lean-to Style Glass Greenhouse
Modern Lean-to Style Glass Greenhouse
Modern Lean-to Style Glass Greenhouse
Modern Victorian Greenhouse - Modern™ Victorian 10X9X15.ft M34 Sloping Roof Greenhouse
Modern Victorian Greenhouse - Modern™ Victorian 10X9X15.ft M34 Sloping Roof Greenhouse
Modern Victorian Greenhouse - Modern™ Victorian 10X9X15.ft M34 Sloping Roof Greenhouse
Modern Victorian Greenhouse - Modern™ Victorian 10X9X15.ft M34 Sloping Roof Greenhouse
Modern Victorian Greenhouse - Modern™ Victorian 10X9X15.ft M34 Sloping Roof Greenhouse
Modern Victorian Greenhouse - Modern™ Victorian 10X9X15.ft M34 Sloping Roof Greenhouse
Modern Victorian Greenhouse - Modern™ Victorian 10X9X15.ft M34 Sloping Roof Greenhouse
Modern Lean-to Style Glass Greenhouse

Modern Lean-to Style Glass Greenhouse

$12,998.99
Royal Victorian Greenhouse - Royal Victorian™ 10X9X20.ft VI36 Greenhouse
Royal Victorian™ 10X9X20.ft VI36 Greenhouse
Royal Victorian™ 10X9X20.ft VI36 Greenhouse
Royal Victorian Greenhouse - Royal Victorian™ 10X9X20.ft VI36 Greenhouse
Royal Victorian Greenhouse - Royal Victorian™ 10X9X20.ft VI36 Greenhouse
Royal Victorian Greenhouse - Royal Victorian™ 10X9X20.ft VI36 Greenhouse
Royal Victorian Greenhouse - Royal Victorian™ 10X9X20.ft VI36 Greenhouse
Royal Victorian Greenhouse - Royal Victorian™ 10X9X20.ft VI36 Greenhouse
Royal Victorian Greenhouse - Royal Victorian™ 10X9X20.ft VI36 Greenhouse
Royal Victorian Greenhouse - Royal Victorian™ 10X9X20.ft VI36 Greenhouse
Royal Victorian Greenhouse - Royal Victorian™ 10X9X20.ft VI36 Greenhouse
Royal Victorian Greenhouse - Royal Victorian™ 10X9X20.ft VI36 Greenhouse
Royal Victorian Greenhouse - Royal Victorian™ 10X9X20.ft VI36 Greenhouse
Royal Victorian Greenhouse - Royal Victorian™ 10X9X20.ft VI36 Greenhouse
Royal Victorian Greenhouse - Royal Victorian™ 10X9X20.ft VI36 Greenhouse
Royal Victorian Greenhouse - Royal Victorian™ 10X9X20.ft VI36 Greenhouse
Royal Victorian Greenhouse - Royal Victorian™ 10X9X20.ft VI36 Greenhouse
Royal Victorian™ 10X9X20.ft VI36 Greenhouse
Royal Victorian™ 10X9X20.ft VI36 Greenhouse
Royal Victorian™ 10X9X20.ft VI36 Greenhouse
Royal Victorian™ 10X9X20.ft VI36 Greenhouse
Royal Victorian™ 10X9X20.ft VI36 Greenhouse
Royal Victorian Greenhouse - Royal Victorian™ 10X9X20.ft VI36 Greenhouse
Royal Victorian Greenhouse - Royal Victorian™ 10X9X20.ft VI36 Greenhouse
Royal Victorian Greenhouse - Royal Victorian™ 10X9X20.ft VI36 Greenhouse
Royal Victorian Greenhouse - Royal Victorian™ 10X9X20.ft VI36 Greenhouse
Royal Victorian Greenhouse - Royal Victorian™ 10X9X20.ft VI36 Greenhouse
Royal Victorian Greenhouse - Royal Victorian™ 10X9X20.ft VI36 Greenhouse
Royal Victorian Greenhouse - Royal Victorian™ 10X9X20.ft VI36 Greenhouse
Royal Victorian Greenhouse - Royal Victorian™ 10X9X20.ft VI36 Greenhouse
Royal Victorian Greenhouse - Royal Victorian™ 10X9X20.ft VI36 Greenhouse
Royal Victorian Greenhouse - Royal Victorian™ 10X9X20.ft VI36 Greenhouse
Royal Victorian Greenhouse - Royal Victorian™ 10X9X20.ft VI36 Greenhouse
Royal Victorian Greenhouse - Royal Victorian™ 10X9X20.ft VI36 Greenhouse
Royal Victorian Greenhouse - Royal Victorian™ 10X9X20.ft VI36 Greenhouse

Royal Victorian™ 10X9X20.ft VI36 Greenhouse

$12,498.99
Retro Victorian Greenhouse - Retro.Victorian™ 10X9X15.ft VI36 Premium Greenhouse
Retro Victorian Greenhouse - Retro.Victorian™ 10X9X15.ft VI36 Premium Greenhouse
Retro Victorian Greenhouse - Retro.Victorian™ 10X9X15.ft VI36 Premium Greenhouse
Retro.Victorian™ 10X9X15.ft VI34 Premium Greenhouse
Retro.Victorian™ 10X9X15.ft VI34 Premium Greenhouse
Retro.Victorian™ 10X9X15.ft VI34 Premium Greenhouse
Retro Victorian Greenhouse - Retro.Victorian™ 10X9X15.ft VI36 Premium Greenhouse
Retro Victorian Greenhouse - Retro.Victorian™ 10X9X15.ft VI36 Premium Greenhouse
Retro Victorian Greenhouse - Retro.Victorian™ 10X9X15.ft VI36 Premium Greenhouse
Retro Victorian Greenhouse - Retro.Victorian™ 10X9X15.ft VI36 Premium Greenhouse
Retro Victorian Greenhouse - Retro.Victorian™ 10X9X15.ft VI36 Premium Greenhouse
Retro Victorian Greenhouse - Retro.Victorian™ 10X9X15.ft VI36 Premium Greenhouse
Retro Victorian Greenhouse - Retro.Victorian™ 10X9X15.ft VI36 Premium Greenhouse
Retro Victorian Greenhouse - Retro.Victorian™ 10X9X15.ft VI36 Premium Greenhouse
Retro Victorian Greenhouse - Retro.Victorian™ 10X9X15.ft VI36 Premium Greenhouse
Retro Victorian Greenhouse - Retro.Victorian™ 10X9X15.ft VI36 Premium Greenhouse
Retro.Victorian™ 10X9X15.ft VI34 Premium Greenhouse
Retro.Victorian™ 10X9X15.ft VI34 Premium Greenhouse
Retro.Victorian™ 10X9X15.ft VI34 Premium Greenhouse
Retro Victorian Greenhouse - Retro.Victorian™ 10X9X15.ft VI36 Premium Greenhouse
Retro Victorian Greenhouse - Retro.Victorian™ 10X9X15.ft VI36 Premium Greenhouse
Retro Victorian Greenhouse - Retro.Victorian™ 10X9X15.ft VI36 Premium Greenhouse
Retro Victorian Greenhouse - Retro.Victorian™ 10X9X15.ft VI36 Premium Greenhouse
Retro Victorian Greenhouse - Retro.Victorian™ 10X9X15.ft VI36 Premium Greenhouse
Retro Victorian Greenhouse - Retro.Victorian™ 10X9X15.ft VI36 Premium Greenhouse
Retro Victorian Greenhouse - Retro.Victorian™ 10X9X15.ft VI36 Premium Greenhouse
Retro.Victorian™ 10X9X15.ft VI34 Premium Greenhouse

Retro.Victorian™ 10X9X15.ft VI34 Premium Greenhouse

$24,998.99
price match policy

Sign Up Now

Get the latest sales, tips and more. No spam guaranteed!

More Details
  • Trust Guard - Security Scanned
    Website is Security Scanned Security Scan Passed:
    Scan Frequency:
  • Trust Guard - Malware Scanned
    No Malware Detected Malware Scan Passed:
    Scan Frequency:
  • Trust Guard - SSL Scanned
    Active SSL Certificate Encrypted By:
    Expiration Date:

Cart

Your cart is empty.