Lifting concrete in Canada is extremely weather-dependent. We raise all of our concrete indoors, which means the only time we cannot lift concrete is when it's too cold (below freezing) or too wet (above frost line). In our climate, outside work is generally done from May 1st through mid-November. However interior slabs in heated buildings can still be raised. Do not hesitate to contact us and we will be happy to let you know when your project can be done.