July 30, 2026

Bathroom Renovation: Waterproofing, Ventilation and Finishing

A beautiful bathroom must also manage water and humidity correctly. The work hidden behind tile—framing, plumbing, waterproofing and ventilation—has the greatest effect on long-term performance.

Build the shower system correctly

Substrates, waterproof membranes, corners, penetrations and drainage must work as one system. Tile and grout are finish materials; they do not replace proper waterproofing.

Plan ventilation and lighting

A correctly sized exhaust fan helps control moisture. Layered lighting around the vanity, shower and general ceiling improves comfort and safety.

Coordinate the final details

Vanity dimensions, faucet clearances, glass measurements, trim and paint should be confirmed before installation. Kiarash Homes provides complete bathroom renovation coordination throughout Newmarket and the GTA.