Hy-Lite Block Windows combine the beauty of glass block with the quick and easy installation of a standard window

Constructed of lightweight acrylic blocks, Hy-Lite windows are fully prefabricated and glazed units. Because there's no mortar, there's no mess, no delays, and no headaches.

Why deal with the mess and wasted time of traditional glass blocks?
Hy-Lite Block Windows easily install in minutes.

Ships and Installs Easily as a Complete Window
All of our windows - aluminium framed, vinyl framed, and operable vinyl framed windows - arrive as completely prefabricated and glazed units. All Hy-Lite windows come with attached nailing fins for easy standard installation.

Ten Year Limited Warranty
With millions of blocks installed throughout every region of the country, Hy-Lite has the confidence to offer a Ten Year Limited Warranty. This warranty guarantees your window won't leak and the blocks won't yellow. To further prove the quality of our windows, we have results of numerous industry tests (complete test reports are available from Hy-Lite upon request).

75% Lighter than Glass Block
Acrylic blocks make for a lighter block window. No extra reinforcement is necessary, so you can have the beauty of glass block places where heavy glass is not practical. Also, you won't encounter sagging or cracking of blocks, over time.

35% More Energy Efficient than Glass Block
As heating and cooling costs increase, homeowners are becoming concerned about the thermal efficiency of all building products. Hy-Lite answers those concerns by offering both vinyl framed and thermally-broken aluminium framed windows.

Safety Glazing Approved
Hy-Lite Block Windows are perfect above bathtubs and as shower walls. And because they are safety glazing approved, they are not only safe, but are accepted by most building codes.

High Quality Virgin Acrylic
Hy-Lite uses the highest quality acrylic for its blocks. This acrylic won't yellow and resists scratching. In fact, we use the same high quality resin used for all automobile tail light lenses, so exterior weathering and durability is excellent.

Airtight Sealed Blocks
Every Hy-Lite block - including our patented triangle block - is sealed, airtight, to prevent internal condensation and to preserve the structural integrity of the window.