Sunroom Additions

Sunroom additions bring natural light and outdoor ambiance into your Ottawa home, available as three-season rooms for use from roughly May through October or fully insulated four-season rooms designed to handle Ottawa's extreme winter temperatures as low as minus 30 degrees Celsius. Three-season sunrooms use single or double-pane glass with minimal insulation and typically do not require HVAC extension, making them significantly more affordable.

Four-season sunrooms require triple-pane low-E glass, insulated foundations with frost-line footings, wall insulation meeting Ontario Building Code minimum R-values, and integration with your existing heating system or a dedicated heat source. Both types require a City of Ottawa building permit and must meet zoning setback requirements.

In Ottawa's climate, orientation matters significantly: south-facing sunrooms maximize passive solar gain in winter but may overheat in summer without proper shading or ventilation. Many Ottawa homeowners opt for four-season rooms to extend the usable months, which adds substantially to the investment but creates year-round living space.