By Artem Ermakov, Owner and Operator of Island Window Cleaning Service, a family owned company serving South Florida. Updated October 2026.

Glass restoration in Florida: Boca Raton · Delray Beach · Palm Beach · Jupiter · Fort Lauderdale

The short answer: sometimes. Light surface scratches and haze can often be polished out. Deep scratches are different: removing them means grinding away the glass around them, which can distort the view, so they are often improved but not made invisible, and some are best handled by replacing the glass.

How Deep Is the Scratch? The Fingernail Test

Everything depends on depth. Run a fingernail across the scratch, moving across the line rather than along it. If your nail does not catch, the scratch is shallow and has the best chance of being polished out. If your nail catches in the groove, the scratch is deeper, and a professional should assess it before anyone starts grinding.

How Scratches Are Removed From Glass

Glass scratch removal is a controlled polishing process, not a quick buff.

1. Assess. The technician checks the type of glass, the depth of the scratch and where it is, then tests a small area.
2. Clean. Dirt and grit are removed first, because anything left on the glass can cause new scratches.
3. Polish. A polishing compound, commonly cerium oxide, is worked with a felt pad and a rotary tool. The glass is kept wet and cool, since overheating can crack it.
4. Step down. For deeper scratches, finer and finer abrasives gradually level the surface.
5. Finish and inspect. The area is cleaned and checked from several angles and in different light.

The aim is to take off just enough glass to make the scratch disappear while keeping the surface flat. Our article on whether scratches can be buffed out explains the technique in more detail.

What Can Be Repaired

• Light cleaning scratches and haze: often removable with glass polishing.
• Moderate scratches: may be reduced a great deal with patient, stepped polishing.
• Interior and exterior glass: both can be repaired. The method is similar, but outside glass is exposed to dirt and weather, so it needs a good cleaning first.
• Stains and mineral buildup on top of scratches: sometimes what looks like a scratch is a stain. See what causes hard water stains.

What Is Hard or Impossible to Fix

• Deep scratches and gouges. Removing them can leave a dip or wavy reflection.
• Coated glass, such as low-E. Polishing can remove or damage the coating, so ask first.
• Tempered, laminated and impact-rated glass. These allow only light polishing, and a professional should judge what is safe. Impact windows are common in South Florida.
• Mirrors. If the scratch is in the reflective backing, polishing the front will not help.
• Cracks. A crack is a safety issue, and the pane usually needs replacing.

Where Scratches Happen in South Florida

• Sliding glass doors and lanai glass. Sand and grit from pool decks, patios and beaches get dragged across the glass during cleaning.
• Storm and construction areas. Wind-blown debris, stucco dust and paint overspray can scratch glass that is wiped dry.
• Shower doors. Abrasive pads and powders used on mineral stains are a common cause.
• Storefronts. Scraped stickers, signs and residue can mark glass.
• Balcony doors and glass railings. Salt, sand and rough cleaning leave fine marks over time.

Special Considerations by Glass Type

Why DIY Kits Can Make Things Worse

Store-bought kits and home remedies can leave a hazy, uneven patch that looks worse than the original scratch. Heat from a fast polishing wheel can also crack glass, and the wrong compound can create new scratches. Baking soda rarely works on real scratches, and cheap fixes often only fill them for a short time. For a visible window or door, it is safer to have a professional look at it first. Read whether cheap window fixes actually work.

What to Expect on Site

A typical visit starts with a look at the scratches in good light, the fingernail test and a conversation about what bothers you. The technician tests a small area, explains what is likely to improve and tells you if some marks will remain. Polishing is done wet, so there is slurry to contain and wipe up, and the area around the glass is protected. For more on that, see whether glass repair makes a mess.

Many people also ask whether glass repair weakens the glass. On a light scratch, the amount of glass removed is tiny. Deeper repairs remove more, which is another reason to get honest advice before you start. How long it takes depends on the size, the depth and how many scratches there are, and we give you an estimate on site.

Repair or Replace?

Restoration is usually more affordable than replacing a large pane and avoids the disruption of new glass, but it is not right for every scratch. Replacement may be the better answer if the scratch is deep and in your line of sight, if there is a crack, if the glass is coated in a way that polishing would ruin, or if the seal on a double-pane unit has failed. A good professional will tell you honestly when replacement is better.

Factors that affect cost include the size of the glass, the number and depth of scratches, the type of glass and how easy it is to reach. We give a free estimate so you can compare.

Common Myths and Quick Fixes

For more on this, read whether cheap window fixes actually work.

Questions to Ask a Glass Restoration Company

• Have you worked on my type of glass, such as tempered, laminated or low-E?
• Will you test a small area first?
• Will any scratch remain, and could the view look distorted?
• How will you protect the area and clean up?
• Can you give me an estimate before starting?
• Can I see photos of similar work?

A Real Example: Oceanfront Glass Restoration in Jupiter

This is a real project from our work in South Florida: an oceanfront home in Jupiter where the windows and French doors had become hazy and spotted. We masked the frames, polished the glass and finished with a thorough cleaning. The photos and clips below are from that job.

Results depend on the type of glass and the depth of the damage, which is why we always assess first. See our glass restoration page for Jupiter.

What Causes Scratches and How to Prevent Them

Most scratches come from grit trapped under a cloth or scraper, razor blades used on dirty glass, steel wool, abrasive cleaners and construction debris. In coastal Florida, wind-blown sand and storm debris add to the list. Read more in what causes scratches on window glass.

• Wet the glass and rinse off loose dirt before wiping.
• Use clean microfiber and a fresh squeegee blade.
• Use scrapers only on clean, wet glass.
• Cover windows during sanding, stucco or paint work.
• Avoid steel wool and abrasive powders anywhere near glass.

If you wonder whether a scratch will ever go away on its own, see are glass scratches permanent?

Frequently Asked Questions

Can scratches be buffed out of glass?

Light ones often can. See our guide to buffing scratches out of glass.

Is it cheaper to repair than replace glass?

Often, yes, but it depends on the size, depth and type of glass. We give a free estimate so you can compare.

Can interior and exterior glass scratches both be repaired?

Yes. The method is similar, but exterior glass must be cleaned very carefully first because of outdoor grit.

Does toothpaste remove scratches from glass?

Rarely. It is too mild to remove a real scratch, and it may only fill it for a short time.

Will polishing distort my window?

It can if too much glass is removed from one spot. That is why deep scratches need a careful assessment.

How do I know if my window can be repaired?

Check the depth with the fingernail test, then have a professional look at it. See how to know if your window is repairable.

Glass Restoration in Florida

We restore scratched and stained glass for homes and businesses across South Florida. Choose the nearest page: Boca Raton, Delray Beach, Palm Beach, Jupiter and Fort Lauderdale.

Talk to Island Window Cleaning Service

We can look at the scratches and tell you plainly what can be restored and what cannot. Call (561) 288-0904 for a free estimate, Monday through Saturday, 8am to 7pm.

Related Reading

• Can scratches in glass be buffed out?
• Are glass scratches permanent?
• What causes scratches on window glass?
• Does baking soda remove scratches from glass?
• What is the process for repairing window glass?

By Artem Ermakov, Owner and Operator of Island Window Cleaning Service, a family owned company serving South Florida. Updated October 2026.

Window cleaning in Florida: Boca Raton · Delray Beach · Deerfield Beach · Highland Beach · Boynton Beach · Lantana · Palm Beach · West Palm Beach · Jupiter
Glass restoration in Florida: Boca Raton · Delray Beach · Palm Beach · Jupiter · Fort Lauderdale

The short answer: hard water stains are mineral deposits, mainly calcium and magnesium, left on glass when water evaporates. The water dries and the minerals stay behind as white spots, a cloudy haze or a crusty ring. In Florida, sprinklers, pool splash and strong sun are the most common causes.

What Is Hard Water?

Water picks up minerals as it moves through the ground. “Hard” water carries a lot of dissolved calcium and magnesium. Much of Florida’s water comes from limestone, which is rich in calcium, so hard water is common here. Hardness is not a health problem, but it is a cleaning problem. When the water evaporates, the minerals have nowhere to go, and they stay on whatever the water touched.

How Hard Water Stains Form on Glass

A single drop of hard water leaves a faint ring when it dries. The next time the glass gets wet, the new water settles in the same spots and dries again, building the ring into a patch. Over weeks and months, these patches join into a cloudy film. Eventually the film can bond to the glass and resist normal cleaning.

The process is quick in Florida. High heat dries droplets in minutes, so there is less time to wipe them off, and strong sun bakes the minerals onto the surface.

Common Causes on Florida Homes and Businesses

• Sprinklers and irrigation. The most common cause we see on exterior glass. Even one misaimed head can spot a window every day.
• Shower doors and enclosures. Daily spray that is never wiped off.
• Pool and lanai splash. Water that dries on sliding doors, pool cages and nearby windows.
• Well water. Some properties irrigate or supply water from wells, which can be very hard and sometimes carries iron.
• Air conditioner drips and condensation. Water that runs down glass or frames from above can leave streaks.
• Heat and direct sun. Faster evaporation means more minerals left behind and less time to wipe them.
• Soap scum and body oils. On shower glass these trap minerals and make the film harder.

Why Florida Is Especially Prone to Hard Water Spots

Three things combine here. First, the water: much of the state’s supply comes from limestone aquifers, so it carries a lot of calcium. Second, the heat: when glass is hot, a drop can dry in a minute or two, leaving nearly all of its minerals behind. Third, the habits: lawns and gardens are watered often, and pool decks, lanais and pool cages are always getting wet. Add the salty, humid air near the coast, which holds moisture and salt on glass, and it is easy to see why windows here spot faster than in cooler, drier places.

Timing matters too. In the dry season (roughly November to April), sprinklers do much of the watering, so sprinkler spots are the main problem. In the rainy season (roughly May to October), daily storms leave rain spots on top of whatever is already there.

Not All Stains Are the Same

Why Stains Get Worse If You Ignore Them

A light spot wipes off with the right cleaner. A layer built up over months or years is a bigger job, and mineral buildup that stays on glass for a long time can leave marks that never fully come off. That is why we recommend dealing with spots early. See whether hard water stains are permanent for what can and cannot be fixed.

Where Hard Water Stains Show Up

How to Tell Hard Water Stains From Scratches or Etching

Try a small test in a corner. Wipe the spot with a clean, damp microfiber cloth and a mild vinegar and water mix, then rinse and dry. If the glass clears, it was mineral deposit. If a mark remains after careful cleaning, you may be looking at etching or a scratch. Do not use abrasives to find out, since they can create real scratches.

Another clue is the pattern. Stains follow where the water landed, such as an arc from a sprinkler or runs below a ledge. Scratches usually look like lines, often in straight or curved strokes.

How to Prevent Hard Water Stains

• Aim sprinklers away from windows, doors and pool cages.
• Squeegee shower glass after each use.
• Wipe spots early, before the sun bakes them on.
• Clean on a schedule. See how often outside house windows should be cleaned.
• Consider a water softener if hard water is a problem throughout the house.
• Ask a professional about protection, such as water-repellent coatings, for glass that is cleaned often. Results depend on the product and the glass.

What Not to Do

• Do not scrub with steel wool, scouring powder or razor blades. They can scratch the glass.
• Do not use strong acids on frames, natural stone, metal or coated glass without testing first.
• Do not pressure wash windows. It can damage seals and push water into frames.
• Do not mix cleaning chemicals, especially bleach with acids or ammonia.

Will Vinegar Fix It?

Mild stains on glass sometimes respond to a vinegar and water solution, but it does not work on heavy buildup. Acids can also damage frames, stone, metal finishes and some coatings. Test a small hidden area first. For tougher stains, see what professional window cleaners use on hard water stains.

A Safe Way to Treat a Light Stain at Home

If the stain is light and the glass is ordinary, uncoated window glass, you can try this:

1. Wet the glass and wipe off loose dirt with a clean microfiber cloth.
2. Mix equal parts white vinegar and water in a spray bottle.
3. Test a small hidden corner first.
4. Spray the stain, let it sit for a minute or two, and wipe with a soft cloth. Do not let it dry on the glass.
5. Rinse with clean water and dry with a clean cloth or squeegee.
6. Wipe up any drips on frames and surrounding surfaces right away.

If the stain barely changes after a second try, stop. More scrubbing is how glass gets scratched, and it is the point where calling a professional makes sense.

What Professionals Do Differently

Professionals do not just use stronger products. They match the method to the stain, test first and protect the surroundings. They also use tools made for glass, such as non-scratch pads and, for exterior windows, water-fed poles with purified water that rinse without leaving new spots. When a stain has etched the glass, they can polish it. You can read the details in what professional window cleaners use on hard water stains.

Just as important, a professional can tell you what you are dealing with. Many homeowners are surprised to learn that a hazy window is a mineral film and not a scratch, or the other way around.

When to Call a Professional

Call someone if the stains survive a gentle cleaning, if the glass is large, high or coated, or if you suspect etching. A professional will tell you honestly whether cleaning will be enough or the glass needs restoration. Our glass restoration pages cover scratch and stain repair in Delray Beach, Boca Raton and the rest of South Florida.

Frequently Asked Questions

Are hard water stains the same as scratches?

No. Stains sit on the glass and can often be removed. Scratches are damage to the glass itself and need a different repair approach.

Why do my windows get spots right after the sprinklers run?

The sprinkler water dries and leaves its minerals behind. Redirecting the spray away from the window is the best fix.

Do hard water stains damage glass?

They can if they stay for a long time. Mineral buildup that has been on glass for years may leave etching that needs polishing.

Does a water softener stop window stains?

It helps with water that goes through the softener, such as showers. It usually does not treat outdoor irrigation.

What do orange or brown stains mean?

Often iron from well water. These need a product made for rust stains, so ask before using a regular cleaner.

Can hard water stains come back after cleaning?

Yes, if the water keeps hitting the glass. Fixing the source, such as the sprinkler spray, is the best way to stop them.

Window Cleaning Across South Florida

Island Window Cleaning Service is based in Florida and works throughout Palm Beach County and nearby communities. See the page for your area: Boca Raton, Delray Beach, Deerfield Beach, Highland Beach, Boynton Beach, Lantana, Palm Beach, West Palm Beach and Jupiter.

Glass Restoration in Florida

We restore scratched and stained glass for homes and businesses across South Florida. Choose the nearest page: Boca Raton, Delray Beach, Palm Beach, Jupiter and Fort Lauderdale.

Talk to Island Window Cleaning Service

If spots or haze are building up on your windows, we can remove them and tell you whether restoration is needed. Call (561) 288-0904 for a free estimate, Monday through Saturday, 8am to 7pm.

Related Reading

• Are hard water stains permanent?
• What pros use on hard water stains
• How often should outside windows be cleaned?
• How to keep windows clean longer
• Can scratches on glass be removed?

By Artem Ermakov, Owner and Operator of Island Window Cleaning Service, a family owned company serving South Florida. Updated October 2026.

Window cleaning in Florida: Boca Raton · Delray Beach · Deerfield Beach · Highland Beach · Boynton Beach · Lantana · Palm Beach · West Palm Beach · Jupiter

The short answer: most houses need the outside of their windows cleaned at least twice a year. In coastal South Florida, where salt, humidity, pollen and sprinkler water build up quickly, we usually recommend every three months. Storefronts and restaurants often need cleaning monthly.

A Simple Schedule to Start With

These are the starting points we suggest for South Florida properties. Your own windows are the best guide, so treat the table as a starting point and adjust.

Why South Florida Windows Get Dirty Faster

Most national advice says “twice a year, spring and fall.” That works in places with real winters. In South Florida, several things work against your glass all year long:

• Salt air. Even a few miles from the ocean, the air carries salt that settles on glass as a thin, sticky film. That film catches more dust.
• Humidity. Moisture helps dirt cling to the glass, and in damp spots it can encourage mildew and algae on frames and sills.
• Pollen. Spring pollen coats windows in yellow dust that smears when it gets wet.
• Sprinklers. Irrigation water carries minerals. Each time it dries on the glass, it leaves spots. Over months, those spots can become hard water stains.
• Frequent rain. Summer storms rinse dust around and leave new spots when the drops dry, rather than cleaning the glass.
• Insects and birds. Lovebug season in late spring and late summer, plus bird droppings, leave marks that can etch if left in the sun.
• Construction and traffic. New building and busy roads add fine dust that sticks to the film already on your windows.

How Long Do Windows Stay Clean?

After a professional cleaning, windows in a sheltered spot can stay clear for about three to six months. Near the water, near construction or in the path of sprinklers, you may see the film return in a few weeks. Windows on the sunny side of the house usually look dull sooner than those in shade, because heat bakes spots on.

A good rule: if you can see the dirt from across the room, or the sun creates a hazy glare, the glass has been dirty for a while. Wiping fresh spots early and keeping sprinklers aimed away from the glass can stretch the time between cleanings. We list more ideas in how to keep your windows clean longer.

Factors That Should Change Your Schedule

Two houses on the same street can need very different schedules. Think about these:

• Distance from the water. The closer to the ocean or Intracoastal, the more salt, and the more often you will need to clean.
• Sprinkler layout. One head spraying a window can ruin the glass faster than anything else. Fixing the spray often does more than cleaning more often.
• Trees and landscaping. Trees drop sap, flowers and leaves, and plants against the glass hold moisture.
• Screens and lanais. Screened patios keep out some debris but collect their own dirt, and the glass behind them still needs cleaning.
• Window height and type. High, large or hard-to-reach windows are usually cleaned less often by owners, which makes dirt build up.
• Pools and spray. Pool water and splash leave mineral spots on nearby doors and windows.
• How the property is used. Rentals, offices and shops need to look good all the time. A quiet second home can wait longer.
• HOA or condo rules. Some communities have exterior cleaning schedules or standards to follow.

Exterior vs. Interior Windows

Outside glass gets much dirtier, much faster, than inside glass. As a general guide, clean the outside every one to three months in Florida’s tougher conditions, and the inside once or twice a year, or when fingerprints, pets, kitchen grease or cigarette smoke build up. If your inside windows get dirty quickly, check the weather stripping and seals, since air leaks bring dust in.

Signs It Is Time to Clean

• A hazy glare when the sun hits the glass at an angle.
• White spots or rings, especially near the bottom of the window or on sliding doors.
• Pollen, dust or a sticky film you can feel when you run a finger across the glass.
• Gritty tracks and dirty sills, which show that dirt is collecting around the window.
• Streaks and smears that remain after rain.
• Green or black spots on frames and sills that look like mildew.

If you see mineral spots, deal with them sooner. They are much easier to remove while they are fresh. Read whether hard water stains are permanent to see how fast they become a bigger job.

The Best Times of Year to Clean in Florida

Florida has its own calendar, so “spring and fall” is not always the right answer.

Atlantic hurricane season runs from June 1 to November 30. If you are deciding between seasons, see our article on washing windows in spring or fall, or whether people get their windows cleaned in winter. Either way, avoid cleaning in direct, hot sun. We explain why in should you clean windows in the sun?

After a Storm or Hurricane

A big storm can leave salt, sand, leaves and debris on glass, and the heavy rain does not wash it off. Once the weather has cleared and it is safe to be outside, a cleaning removes the salt and grit before they dry onto the glass. Be careful with debris, since grit on glass can scratch it if it is wiped dry. Check the seals and frames while you are at it. If you see cracks or broken seals, call a glass professional before you clean.

What Happens If You Wait Too Long

Dirt is not only a looks problem. A film of salt and grime holds moisture against the glass and frame. Mineral deposits can bond to the surface and become harder to remove each month. In the worst cases, they can leave marks that need glass restoration. Dirty tracks and sills also make sliding doors harder to use and can lead to mildew. For a closer look, read what happens if you don’t clean your windows over time.

Homes vs. Businesses

Homes. Choose the schedule that matches your location and how much the view matters to you. Many homeowners pick a quarterly service so the glass stays clear without thinking about it.

Businesses. Storefront windows are part of your sign. Restaurants, retail shops and offices usually do best with monthly cleaning, or more often for busy entrances. A clean window tells customers you care before they walk in.

Rentals and condos. Clean before each season or between guests, and keep a regular schedule for balconies and sliding doors that face the water.

DIY or Professional: How It Affects the Schedule

If you clean the windows yourself, the schedule is about how much time you have. Most people can keep up with a few ground-floor windows, but tall windows, second stories, tracks and hard water spots are where DIY usually falls behind. A professional can cover the whole house, including screens and tracks, in a visit. If you are weighing the cost, read whether it is worth hiring a window cleaner, and what to expect from a window cleaning company.

How to Stretch the Time Between Cleanings

• Redirect sprinklers so they do not hit windows and doors.
• Trim plants so they do not touch the glass.
• Wipe spots as soon as you see them with a clean microfiber cloth.
• Vacuum or wipe tracks and sills every few weeks.
• Wash screens so they do not shed dirt onto the glass.
• Ask about water-repellent coatings, which can help water run off. Results vary by product and glass.

Build Your Own Schedule in Three Steps

1. Start with the table. Pick the row that matches your property.
2. Watch the glass for a month. Note how fast spots, haze and pollen return after a cleaning.
3. Adjust. If the film returns in six weeks, move to every six weeks. If windows look good after four months, you can stretch it.

Keeping a simple note of the date of each cleaning helps you see the pattern.

Frequently Asked Questions

Is twice a year enough for windows in Florida?

For an inland home with little tree cover, it can be. If you live near the water, have sprinkler spots or heavy pollen, twice a year usually means the glass spends months looking dull.

Does rain clean my windows?

Not really. Rain moves dust around and leaves spots when it dries. Clean glass still needs to be washed.

How often should businesses clean their windows?

Storefronts and restaurants usually need cleaning monthly or more often, since the glass is part of the first impression.

How often should interior windows be cleaned?

Once or twice a year is usually enough, or more often if you have kids, pets or cook a lot.

Should I clean the tracks and screens too?

Yes. Dirty tracks and screens put grit back on the glass and make sliding doors harder to use, so a thorough window cleaning includes them.

How long does a professional window cleaning take?

It depends on the number of windows and how hard they are to reach. Our guide on how long window cleaning takes gives typical times.

Can I clean my windows in winter?

Yes. Florida winters are mild and a good time for a thorough cleaning. See do people get their windows cleaned in winter.

Window Cleaning Across South Florida

Island Window Cleaning Service is based in Florida and works throughout Palm Beach County and nearby communities. See the page for your area: Boca Raton, Delray Beach, Deerfield Beach, Highland Beach, Boynton Beach, Lantana, Palm Beach, West Palm Beach and Jupiter.

Talk to Island Window Cleaning Service

We can set up a regular schedule that fits your property, whether that is quarterly, monthly or a one-time cleaning. Call (561) 288-0904 for a free estimate, Monday through Saturday, 8am to 7pm.

Related Reading

• Is it worth hiring a window cleaner?
• How to keep windows clean longer
• What causes hard water stains on glass
• Should you clean windows in the sun?
• What happens if you do not clean your windows