Models and quantities
Send one photo per model and the quantity. Matching chairs may have very different levels of soiling. For an armchair, mention loose cushions, footstools, reclining mechanisms and contrasting side materials.
Protect wood, metal and electrics
Upholstery may sit beside unfinished wood or electrical components. Treatment needs to account for that construction. Leather, faux leather and fabric are different surfaces and should not automatically receive the same cleaning method.
Plan several items together
For several chairs or business seating, prepare an item list. Allow space for drying and keep routes clear. A combined visit can simplify arrangements; any package price needs to be confirmed after assessment.