KALS Professional Services is a family-run masonry and construction company based in Oshawa, Ontario, dedicated to providing high-quality craftsmanship across the Durham Region and Greater Toronto Area. Specializing in expert masonry, they offer a wide range of services including brick and stone work, chimney repair, parging, repointing, and the construction of durable retaining walls and concrete walkways. They are also known for specialized projects such as walkout basement transformations and safe demolition. Committed to integrity and customer satisfaction, KALS focuses on delivering permanent, weather-resistant solutions that fix "DIY mistakes" and enhance property value through meticulous attention to detail.