Our ensuite has zero ventilation, and the mirror fogs up every time. Can we add a fan without tearing up the ceiling?

Yes, you can likely add an exhaust fan without major ceiling demolition, though the exact approach depends on your home's layout and what's above the bathroom. Most Calgary homes have accessible routes through attic spaces, and there are several installation methods that minimize drywall damage.

The most common solution is installing a ceiling-mounted exhaust fan that vents through the roof or exterior wall. If you have attic access above the ensuite, an experienced contractor can often fish wiring and install ductwork with only a single ceiling hole for the fan housing. They'll cut the fan opening, run electrical from an existing circuit or the panel, and route 4-inch rigid or flexible ductwork to the nearest exterior wall or roof penetration.

For homes without attic access, wall-mounted fans are an excellent alternative. These units mount directly on an exterior wall and require only a 4-6 inch hole through the wall - no ceiling work needed. While slightly less effective than ceiling fans, modern wall units move plenty of air for typical ensuite bathrooms. Some homeowners also consider inline fans mounted in the attic or basement with ceiling grilles, which are quieter but require more complex ductwork.

Calgary's extreme temperature swings make proper installation critical. Your exhaust duct must be insulated to prevent condensation in winter, and the exterior termination needs a proper damper and pest guard. Never terminate bathroom exhaust into the attic - moisture will cause mold and rot issues, especially during our -30°C winters followed by chinook warm-ups.

Electrical and ventilation work requires permits and inspections through the Safety Codes Council of Alberta system. A licensed electrician must handle the wiring (new circuit or connection to existing), and the installation needs inspection. Most contractors can complete this work in 4-6 hours with minimal mess.

Professional installation is strongly recommended - improper ductwork routing, inadequate sealing, or electrical mistakes can create safety hazards and code violations. The investment in proper installation (typically $400-$800 including permits) will solve your fogging problem and protect your home from moisture damage.

Find licensed electrical contractors familiar with bathroom ventilation requirements in our Calgary directory to get quotes and ensure code-compliant installation.