Inspect the surface before selecting pressure
Identify the surface material, coating, joints, cracks, and existing damage. Excessive pressure or an incompatible chemical can damage finishes. The proposed method should account for manufacturer guidance, nearby landscaping, electrical equipment, openings, and any test area needed.
List the areas and the result you are requesting
Separate sidewalks, entrances, loading areas, walls, and other surfaces. Describe visible buildup and any known spills or coatings. Cleaning may improve appearance, but stains, weathering, or material damage may remain. Repairs, coating removal, and hazardous-material work require separate review.
Decide where wash water will go
Wash water can pick up contaminants. Identify drains, water sources, collection needs, and a permitted disposal route before work. Do not assume that a storm drain, sanitary sewer, or nearby ground is an acceptable outlet.
Discharge requirements depend on the site and wastewater. Consult the relevant authority or property requirements; Connecticut DEEP explains the applicable wastewater permit programs, and MassDEP provides stormwater pollution guidance.
Coordinate the work window
Plan pedestrian and vehicle routes, deliveries, water access, weather, and the period needed to leave the surface ready for use. Review forecast and surface conditions if freezing or wind could affect the work. Elevated areas require a separate access and equipment assessment.
Compare what the contractor is actually including
A useful quote describes area, surface, method, water access, containment or recovery, disposal responsibilities, access equipment, and exclusions. Agree on who approves a changed condition before extra work begins. Share photographs and drainage details when requesting a walkthrough.