01
Define the glass and the finish
Count approximate windows or panes and explain whether you want exterior glass, interior glass or both. Identify skylights, divided panes and hard-to-reach glass. Ask whether screens, tracks, sills and frames are included or quoted separately.
02
Match the method to the window
A professional should check the glass type, coatings, frames and manufacturer’s care instructions before choosing tools and cleaners. Andersen advises against razor blades, abrasive cleaners and pressure washing on its windows. The right method depends on the actual product, not just how dirty it looks.
03
Plan safe access before the visit
Tell the professional about storeys, sloping ground, locked gates, landscaping and overhead obstructions. Ask how they will reach upper windows. Let the provider select suitable access equipment; do not assume a ladder or water-fed pole will be appropriate everywhere.
04
Distinguish dirt from damage
Point out paint, mineral deposits, adhesive, damaged seals or scratched glass in advance. Ordinary cleaning may not remove staining or repair cloudy sealed units. Ask which restoration work is excluded and whether a small test is appropriate before extra treatment.
05
Prepare and check the result
Move fragile items and clear interior access when interior cleaning is included. Arrange pets and gates with the provider. After the work, review the agreed areas together and ask about any residue, missed panes or conditions that could not be corrected.
Before you agree to work
Confirm the scope, total price, payment schedule, cancellation arrangements and any warranty directly with the provider. Ask about relevant insurance and experience. An estimate request through this site does not book work or guarantee a provider’s availability.
This is a planning guide, not a site-specific work instruction. The selected professional should assess the property and follow applicable product instructions and local requirements.