Pond Portal Advantage

Standard nominal sizes:

16" Tall x 30" Wide - $1,799

24" Tall x 48" Wide - $2,899

24" Tall x 64" Wide - $3,499

32" Tall x 64" Wide - $3,999

32" Tall x 80" Wide - $4,999

(Shipping, options and custom features not included in prices above)

Standard sizes are designed to be installed into an 8" block wall with or without a 1" veneer. Typically, blocks rest between stainless steel anchors allowing for smooth installation. Alternate block wall thicknesses may be used to allow thicker veneers (Brick, Natural Stone, etc...) or the window may be offset to accommodate no veneer and bring the window flush with the exterior side of the wall.

We are happy to receive custom orders. Custom orders are quoted on a case-by-case basis. Design fees may apply.

Pond Portals provides a flush-mount design. This allows the pond to be part of the wall rather than sunken behind the wall. 

Pond Portals are ready to securely seal any pond-rated flexible liner. Fiberglass and other pond liners may also be suitable with minor modifications to the installation process.

Pond Portals are engineered with the DIY in mind. We like to equate the DIY difficulty level to a bond drain or filter installation. In this case, a little bit of research in block laying is all you need to follow our installation process. If you have any doubt please contact us and we can help answer your DIY questions!

We provide detailed step-by-step instructions that provide a "how to install pond window" guide within our Pond Portal Manuals.

Your Pond Portal Koi Pond Window installation video is coming soon! 

Tempered Laminate Glass is designed under an engineered structural analysis of laminate layers and interlayers. The analysis includes finite element modeling used to determine stress and deflection under worst-case conditions. This includes an analysis of a sudden failure of one side of glass to ensure the remaining layer(s) retain water and keep your fish safe until the you are able to draw down the water level.  

Low-Iron "Ultra Clear" Glass is also available as an option upon request.

Stainless Steel Frames and Retainers are designed in CAD and transferred to a digital laser cutting process to ensure precision alignment. All Pond Portals Frames are crafted from 316 Stainless Steel to ensure the best possible resistance to environmental degradation and ensures a lifelong premium finish.

The Pond Portal includes an innovate multi-purpose feature that ensures a strong connection to the wall and a water-tight seal with the liner. This strong wall connection is achieved through an anchor on the retaining flange that sets into the mortar layer between each block. This same anchor functions as a threaded system that locks in a retaining flange which is used to compress and retain the flexible liner in place. 

Traditionally, open-top window frames are tricky to install because the two vertical sides may slightly bend out of alignment. Pond Portals eliminate this problem by utilizing the retaining flange as part of the installation process to ensure the frame is installed square with the wall and the glass. See the Pond Portal Manual for more details!