Hard water spots form when mineral rich water dries on glass. Older deposits may bond more strongly than everyday surface dirt.
- Standard washing may not remove mineral deposits
- Glass condition should be assessed first
- Specialist treatment may need separate pricing
- Results depend on the deposit and surface condition
Mineral stains usually start on the outside of the glass, often where sprinklers reach. Our exterior window cleaning includes a look at the glass before we start, so you know what will wash off and what may need separate treatment. Get a free quote and we will assess the staining with you.