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 construction. 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-made build - we have you covered. Our team of accredited and certified general professionals can help with any kind of home renovation. Get in touch for a quote today!