Concrete, Asphalt, Pavers, And Aggregate Considerations
Concrete generally tolerates controlled pressure, but excessive force can etch the surface, expose aggregate, or remove a sealer. We pre-treat stains, keep the nozzle moving, and adjust pressure near expansion joints and decorative finishes.
Asphalt requires greater care because aggressive pressure can loosen surface material and worsen cracks. We use lower pressure, suitable detergents, and avoid directing water into damaged edges. Cleaning should occur before asphalt sealing so the surface can dry properly.
Pavers need consistent technique to avoid dislodging joint sand. We clean at an appropriate distance, protect nearby beds, and inspect joints before recommending sanding or sealing. For exposed aggregate, we reduce pressure around weak areas and test a small section first.

