If you're looking for a decorative touch that will open up a room in your home, glass block windows are a great option. At The House of Windows, you can find both solid and vented glass block windows available in a variety of industry standard sizes. We are a great source for both contractors--including Maryland window contractors--and home owners; all of our products ship from the manufacturer and are sold at great savings to you. What's more, we carry the top names in the business like Pella windows (available in the Maryland, Virginia, and DC area only) and offer a manufacturer's warranty on all items we sell.