What Are Transom Windows?
Transoms are horizontal glass panels positioned above doors or windows. They were a common feature in older Ottawa homes, designed to allow light to flow between rooms or into hallways while maintaining privacy. Today, they're valued both for their practical light-transmitting function and their architectural appeal.
A transom adds elegance and light above this entry door
Transoms can be found above entry doors, interior doors, and windows. In heritage homes, they often feature decorative glass patterns, leaded designs, or frosted panels. Even in contemporary homes, transoms are used to bring light into spaces that would otherwise be dark.
Transom Glass Options
- Clear glass—maximum light transmission
- Frosted or obscure glass—light with privacy
- Decorative textured patterns
- Leaded and beveled glass for heritage homes
- Stained glass reproductions
- Energy-efficient insulated units
Common Transom Issues
Like any glass, transoms can develop problems over time. Sealed units may fog between panes as seals fail. Older single-pane transoms may crack or become drafty. Decorative leading can deteriorate. We can assess your transom's condition and recommend the most appropriate solution—whether that's glass replacement, seal repair, or restoration of decorative elements.
Heritage Restoration
Many Ottawa homes in areas like the Glebe, Centretown, and Sandy Hill feature original transom windows with decorative glass. When these need repair or replacement, matching the historic character is important. We have experience working with heritage homes and can help you find solutions that preserve your home's architectural integrity.
Adding Transoms
If your home doesn't have transoms but you'd like to add them, it's possible in some cases—particularly above interior doors where no structural changes are needed. This can be a great way to brighten hallways and interior spaces. We can assess your situation and discuss options.