Could I put a skylight where I currently have a regular window?

Yes, you can potentially install a skylight where you currently have a regular window, but it requires significant structural work and planning. This involves closing the existing window opening, cutting a new opening in the roof, and installing proper framing and flashing systems.

Structural considerations are the primary concern with this conversion. The existing window opening in your wall will need to be properly closed and finished, which may require adding insulation, vapor barrier, and matching your interior and exterior finishes. Meanwhile, creating the skylight opening requires cutting through roof rafters or trusses, which often needs engineered support to maintain structural integrity. The roof pitch, rafter spacing, and existing framing will determine the complexity and feasibility of the installation.

In Ottawa's climate, proper installation is critical for preventing ice dams, condensation, and heat loss. Skylights need robust flashing systems to handle our freeze-thaw cycles, and quality units should have triple-pane glass with Low-E coatings to minimize heat loss during our cold winters. The orientation and size of the skylight will also affect energy efficiency - south-facing skylights provide beneficial solar gain in winter but may cause overheating in summer.

Building permits are required for this type of work since it involves both structural changes and new roof penetrations. City of Ottawa requirements may vary - confirm with your licensed installer, but expect to need architectural drawings showing the structural modifications and proper flashing details.

Professional installation is essential due to the roofing, structural, and finishing work involved. Improper skylight installation is a leading cause of roof leaks and energy loss. For a consultation on your specific situation and to discuss skylight options, Ottawa Window Pros can assess the feasibility and provide guidance on the best approach for your home.