Identify the finish before choosing a method.
Tell us whether the siding is vinyl, fiber cement, wood, metal, or another material, if you know. Include painted or coated areas and any previous work that may affect the finish. A wide photo of each side gives context; closer photos show seams, edges, or particular marks. Lower pressure is part of a soft-washing approach, but suitability still depends on the actual exterior. Material guidance, finish condition, installation details, and access all belong in the assessment before the scope is agreed.
Point out the issues cleaning will not repair.
Loose panels, open joints, peeling paint, damaged trim, and a history of water getting inside should be raised before a wash is planned. Describe where the issue is, even when it is difficult to photograph. Cleaning does not reattach siding, restore a failing coating, or correct a leak. The assessment may identify sections that need attention from another trade before cleaning can be considered. A clear quote should explain what is included and what has been left out because of the condition or access.
Define the sides and details to be cleaned.
A request for the whole house can still leave important details unclear. State which elevations you want included, the number of stories, and whether porches, accessible trim, or detached structures are part of the request. Show narrow side yards, permanent planting, overhead obstacles, and nearby fixtures. Dedicated exterior window cleaning and roof cleaning are separate scopes. Naming those boundaries early helps you compare the written quote with your actual priorities, rather than assuming every visible exterior feature is automatically part of a siding wash.
