Hard Water Stain Removal

Sprinkler spots and cloudy mineral haze lifted from windows and shower glass with a tested, glass-safe restoration process.

Get a free estimate Call (916) 555-0119

From $15 Per pane, light to moderate spotting

How we handle hard water stain removal

The white spots on your lower windows are not dirt. They are calcium and magnesium left behind every time a sprinkler hits the glass and dries in the sun. Regular cleaning will not touch them, and after a few seasons they start to etch the surface.

We test a small area first, then use a glass-safe mineral remover and fine polishing pads matched to the severity of the staining. Once the glass is clear, we can apply an optional hydrophobic sealant so future spots wipe off instead of bonding.

Our process, step by step

Step 1
Test patch
We treat a small corner so you can see the result before committing.
Step 2
Dissolve
A mineral remover softens the deposits without harming glass or frames.
Step 3
Polish
Fine pads lift what is left, working in small sections.
Step 4
Seal
Optional coating makes future spots far easier to clean.

Why it is worth doing right

Clean glass is about more than looks. Here is what you get from a professional visit.

Stop etching

Removing minerals early prevents permanent pitting.

Cheaper than new glass

Restoration costs a fraction of replacing panes.

Clear shower glass

The same process restores cloudy shower doors indoors.

Longer-lasting clean

Sealed glass stays clear between visits.

Post-construction glass: what cleans off, and what is already permanent

Builders call after the trades leave and ask us to make the glass look new. Sometimes we can. Sometimes the pane was damaged weeks ago and no product on a van will bring it back. Here is the honest split before you pay anyone.

Comes off on a normal final clean

Drywall mud, joint compound dust and sanding haze
Latex and acrylic overspray on annealed glass, wet-scraped
Sticker and label adhesive, plus the ghost of a shipping label
Stucco and mortar dust, before it has been rained on
Blue protective tape residue and film adhesive
Silicone smears that are still soft and proud of the glass

Needs restoration, quoted per pane

Stage 1 mineral deposit sitting on the surface, lifted with an acidic gel
Light sprinkler overspray haze polished out with cerium oxide
Cured silicone and construction adhesive, cut back then polished
Concrete slurry splash caught early, before the alkali bites
Oxidised aluminum runoff from a new window frame
Fine surface scratching in annealed glass, under about 0.5 mil deep

Permanent. No product fixes it

Fabricating-debris scratches in tempered glass
Welding spatter and grinder sparks fused into the surface
Stage 3 mineral etch, where the deposit has eaten into the glass
Alkaline burn from concrete slurry left through a wet season
Hydrofluoric or ammonium bifluoride stripper damage, seen as a cloudy bloom
Scratched or delaminated soft-coat low-E on a coated surface

Scrape test first
Before any blade touches a pane we scrape a 2 in test square in the least visible corner and inspect it in raking light. Tempered glass can carry fabricating debris, small fused particles from the tempering oven bed, and a blade drags those across the surface as permanent scratches.
Blade rules
New blade per elevation, glass always flooded with solution, single direction, never dry, never over a coated surface, never on a mirror or a filmed pane. If a pane fails the test square, it is finished by hand and the builder gets it in writing.
Scope split
We price construction work as rough clean, final clean and touch-up. Rough is dust and debris after trades leave, final is the detail clean before handover, touch-up is the walk-through punch list. One of the three is not the other two.
Written condition report
Every pane already damaged when we arrive is photographed, numbered against the window schedule and reported the same day. Glass damage is argued about at handover, so we settle it at the start.

Restoration is quoted per pane after an in-person look, because the difference between a deposit sitting on the glass and an etch inside it cannot be judged from a photo.

What affects the price

Starting at $15 (per pane, light to moderate spotting). Your confirmed quote depends on these factors.

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Factor	Details	Price impact
Severity	Light spotting, heavy haze or early etching	Largest factor
Pane size	Sliding doors and picture windows take longer	Per square foot
Sealant	Optional hydrophobic protective coating	+$6 per pane
Shower glass	Enclosures priced per door and panel	From $95

Swipe to see the full table

Prices shown are sample figures for illustration.

Often booked together

Residential Window Cleaning

Inside and outside glass, frames and sills, hand-detailed and dried streak-free.

From $189

Screen & Track Cleaning

Screens washed and rinsed, tracks vacuumed and wiped so windows slide like new.

From $4

Commercial Window Cleaning

Storefronts, offices and medical buildings on a weekly, monthly or quarterly route.

From $45