Defects occur with age and routine inspections should be conducted with the assistance of a reputable parking lot maintenance contractor. Some of the main defects are:
- The catch basin is higher then the surrounding pavement;
- Sinkholes develop in the asphalt adjacent to the basin;
- Sinkholes develop in an area away from the basin, in the direction of the drain pipe;
- The concrete top is deteriorated or has shifted on an angle, and bricks or large amounts of stones fall to the bottom of the basin.
When Rowles Asphalt repairs a drain, we pull the lids, take the drain apart as much as required, rebuild it with new bricks, and concrete it in for a proper long lasting repair. This is not the cheapest approach but this repair will give you the best value for your maintenance dollar.