Opal Building Co. is a design and build contracting company serving London, Ontario and surrounding areas with expertise in residential style, renovations, additions and new building. We take pride in our craftsmanship and go the extra mile for our clients to provide them with the best possible experience. Whether you need a kitchen renovation, bathroom remodel, home addition, or a complete custom build - we have you covered. Our team of licensed and certified basic specialists can assist with any type of home renovation. Get in touch for a quote today!