Mr Interlok been testing the latest techniques and materials for the cleaning and maintenance of interlock, steps and retaining walls in Ottawa for over a decade. Our trained professional crews can lift and relevel your interlocking driveway, walk or patio to bring it up to its original position. Our patented tempered steam and high pressure wash system kills and removes weed infestation or accumulated dirt or grime. Our specialized chemical spot treatment will remove any stains including oil or rust. Installation of our commercial grade polymeric sand will insure a weed free project for years to come. Interlok sealing with high viscosity Techni-Seal products is available for interlock protection from UV and environmental damage. Call the experts at Mr Interlok for a free consultation at 613-223-0158