Record each area separately
List affected connections by room. Distinguish loose silicone seals, cracked tile grout and visible moisture. Describe previous work and whether the problem has returned.
Agree the scope together
The quote should identify agreed areas, preparation and planned installation. An uncertain substrate or concealed damage may require further checks. Keep these open points visible rather than hiding them in a broad description.
Allow for room use
If a bathroom, kitchen or commercial space remains in use, include access times and any alternative facilities. Scheduling and reuse arrangements depend on the actual scope.
Your project in Luzern
For Luzern and neighbouring municipalities, include the property address, affected room and requested work. For balconies and terraces, add overview photos of edge connections, drainage and visible damage.