How Often Should Outside House Windows Be Cleaned in Florida?

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