Zerodraft Toronto can find and seal the cracks and air leaks in your home, make life more comfortable and cut your energy bills by up to a third, maybe even more. We use quality products and the experience gained from years in the energy business to make your home warm and cozy in the winter, and cooler in summer.Insulating an attic or basement is great, but it is critical that air leaks be sealed first. Large holes and cracks are hidden in the basement and attic. Batts and loose insulation will cover up holes, rather than seal them. more... See more text