Windows being cleaned on a house

Naples, FL

Window cleaningin Naples, FL

Salt haze, hard water spots and why a rag does not fix them.

By Mirage Exteriors, Cape Coral, FL ยท November 7, 2026

Quick answer

Naples glass collects salt and mineral deposits. City of Naples water averaged 67 mg/L hardness in 2024, which is moderately hard on the USGS scale, so sprinkler overspray can leave mineral spots. Salt in the coastal air adds a film on top.

Salt haze

Naples sits on the Gulf, and salt in the air settles on glass and frames. Left alone, that film dulls the view and holds onto dust and pollen.

A film like that does not come off by wiping dry glass. It is also why a quick spray from the hose often leaves the window cloudy again.

Hard water spots

The USGS defines water hardness as the amount of dissolved calcium and magnesium in the water. When hard water dries on glass, it leaves residue that the USGS describes as not dangerous, but unsightly.

The City of Naples 2024 water quality report says the water it delivered ranged from 58 to 102 mg/L hardness, averaging 67 mg/L. On the USGS scale, 61 to 120 mg/L is moderately hard. Sprinklers that hit the glass can leave spots, and the longer they sit, the harder they are to clean.

What helps

ProblemWhat does not workWhat does
Salt hazeDry wipe or a quick hose sprayWashing the glass and frames by hand
Mineral spotsLetting them sit for monthsCleaning them early, not after months of buildup
Frames and screensClose range pressureSoft wash at low pressure
Inside the glassSkipping itInside and out in one visit

How we clean them

We clean windows by hand, inside and out, so the glass comes out streak free. Text photos of the windows to 940-300-4947 for a free written quote. You get before and after photos when we finish.

Why homeowners call Mirage

  • Soft wash for roofs, stucco and screens
  • Pressure wash for concrete and pavers
  • Free written quote from photos
  • Before and after photos when we finish
Sources
  1. City of Naples Utilities: 2024 water quality report (hardness 58 to 102 mg/L, average 67 mg/L)
  2. USGS Water Science School: hardness of water
Driveway, before cleaningDriveway, after cleaning
Driveway

Questions

Quickquestions

Still not sure? Text us at 940-300-4947.

Why are my Naples windows cloudy right after a hose rinse?

Salt and mineral film does not rinse off with plain water. It takes washing the glass by hand.

Do you clean windows inside too?

Yes. We clean windows inside and out.

How often should windows be cleaned?

Many homes need whole house cleaning about once a year. Homes close to the water often want the glass done more often. Text photos and we will tell you what yours needs.

Free quote

Tell us aboutyour home

Photos make it fast. Add a few and we can usually quote without a visit.

  1. 01
    Send a photo or callText a few photos or fill out the form. Tell us what bothers you most.
  2. 02
    Get a clear quoteA written price for exactly what we will clean. Nothing added later.
  3. 03
    We clean, you see itWe do the work with care and send you before and after photos.

In a rush?

What needs cleaning?

We only use your info to quote your job. No obligation.