
Hard Water Stain Removal
Hard Water Stain Removal for commercial facilities, done by our own certified crews and documented after every service.
IKECA Certified

Coverage
The Calcification Point
When mineral-heavy water from irrigation systems or alkaline building runoff repeatedly bakes onto your windows under the sun, it doesn't just sit on the surface. It chemically bonds with the silica in the glass. This creates a hazy, white, semi-permanent stain known as hard water spotting.
Left alone, these deposits can etch into the surface of the glass, damaging the pane for good and making costly replacement necessary.
Chemical Glass Polishing
Hard water cannot be washed off; it must be chemically dissolved and mechanically polished out. SDI uses specialized, optical-grade cerium oxide polishing compounds and mild acidic pastes to safely strip away the calcified minerals, restoring the native clarity of the glass without scratching the surface.
Acidic Breakdown
Applying optical-safe mildly acidic pastes to break the chemical bond between the calcium and the glass silica.
Mechanical Polish
Utilizing low-speed orbital polishers with felt pads to physically lift the dissolved minerals from the pores.
pH Neutralization
Flooding the pane with neutralizing agents to stop the acidic reaction and protect surrounding aluminum window frames.
Hydrophobic Seal
Applying a specialized nano-coating that repels future mineral-heavy water droplets.
How We Do It
Hard Water Stain Removal is part of our Window Cleaning work, done by the same crews and to the same standard that some of California's largest facilities rely on.
Every job is run by trained, certified technicians with professional equipment, scheduled around your operations, whether that means 2:00 PM or 2:00 AM.

Uncompromising Standards
Every surface is cleaned, checked and photographed before the crew leaves.
Schedule an Inspection
Tell us about the facility and we'll call to set a time for a zero-cost inspection.