Best Exterior Window Cleaner: Hose Sprays, Concentrates and Kits

The best exterior window cleaner for most homeowners is Windex Outdoor Glass & Window Cleaner, the hose-end concentrate that attaches to a garden hose so you can spray, rinse and let the glass dry without wiping. If you want the cleanest finish on ground-floor and second-story windows, the runner-up approach is Unger Professional Streak-Free Concentrate used with a squeegee on an extension pole, which is how window cleaners work. This guide covers sprays, concentrates and complete kits, because the right outdoor window cleaner depends as much on how high your glass is as on the liquid itself.

Searches for the best glass cleaner for windows usually mix two different jobs: wiping a smudge off a pane you can reach, and washing a whole house exterior covered in pollen, dust and hard-water spots. Indoor-style trigger sprays handle the first job well and the second one badly. We compare six outdoor-ready products below, add four extra items worth knowing about, and explain the technique that matters more than the brand. We did not personally use these products; this guide is research-based, built from listing details, maker pages and independent guidance named in the sources list.

Windex Outdoor Glass & Window Cleaner for All Garden Hoses, 32 oz (2-Pack) | No Wiping Needed, Concentrated Formula for Cleaning Windows, Patio Furniture & Brick, Won't Harm Plants or Siding

Chosen because it specifies 32 oz (2-Pack) and No Wiping Needed.

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Zep Hose-End Outdoor Cleaner - 32 Ounces - U49910 - Great for Outdoor Glass and Surfaces

Chosen because it specifies 32 Ounces and U49910.

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Krud Kutter Window Wash Cleaner, 32 oz, Streak Free Glass Cleaner for Windows, Mirrors and Glass Surfaces, Removes Dirt, Dust and Grime, Indoor and Outdoor Use

Chosen because it specifies 32 oz and Streak Free Glass Cleaner for Windows.

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Unger Professional Streak-Free EasyGlide Glass Cleaner Concentrate, 32 oz – Ammonia-Free, Makes 25 Gallons of Solution , Safe for Tinted Windows, LOW-E Glass, Windshields & Mirrors

Chosen because it specifies 32 oz and Ammonia-Free.

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Top Picks at a Glance

• Best Overall (easiest whole-house wash): Windex Outdoor Glass & Window Cleaner for garden hoses, 32 oz, 2-pack
• Best Streak-Free Finish: Unger Professional Streak-Free Glass Cleaner Concentrate, 32 oz
• Best for Upper Windows: Eazer 89-inch squeegee and scrubber kit with extension pole
• Best Complete Kit: PIMEKOY window cleaning kit with bucket, squeegee and scrubber
• Best Spot Cleaner for Frames and Doors: Sprayway Foaming Glass Cleaner, 15 oz, pack of 6
• Best Bulk Refill Value: Zep Streak-Free Glass Cleaner, 128 oz

Comparison Table: Exterior Window Cleaners

Prices change often, so we show tiers only. For reach, the usual rule is that your pole should extend at least 2 to 3 feet beyond the height you need so you are not stretching with the squeegee at an angle.

1. Windex Outdoor Glass & Window Cleaner (Hose-End): Best Overall Exterior Window Cleaner

• Format: 32 oz concentrated cleaner in a bottle that connects to a garden hose
• Pack: listed as a 2-pack
• Formula: the maker describes it as ammonia-free with no phosphorus
• Method: spray the glass, rinse, and let it dry; no wiping is needed according to the listing
• Surfaces: the maker says it is meant for outdoor glass and patio surfaces; avoid cars and newly sealed asphalt

Best for: homeowners who want to wash the entire exterior, patio doors and a sunroom in one pass without a ladder. Skip if: your windows are hard-water spotted, because rinse-off cleaners cannot replace a squeegee on mineral deposits.

The reason this lands first is simplicity. A hose-end sprayer turns a two-hour job into twenty minutes: you point, spray, rinse, and let the sun do the drying. For lightly dirty glass, such as dusty second-story windows you can reach with the spray pattern from the ground, it removes the biggest barrier to doing the chore at all. A cleaner you actually use beats a better cleaner that sits in the garage.

The limit is finish quality. Rinse-off formulas dry by letting water sheet off the glass, and if your water is hard, the last drops that evaporate will leave mineral spots. For that reason this product is ideal as a regular maintenance wash between more thorough squeegee sessions. Also keep it away from the car and from freshly sealed driveways, which the maker specifically warns about.

Pros: fast; no ladder needed for reachable glass; concentrated formula; ammonia-free. Cons: not as streak-free as a squeegee; water spots possible in hard-water areas.

2. Unger Professional Streak-Free Concentrate: Best Streak-Free Finish

• Format: 32 oz liquid concentrate
• Dilution: the listing says it makes up to 25 gallons of solution
• Formula: ammonia-free, according to the listing
• Use: mix into a bucket, apply with a scrubber, remove with a squeegee
• Pairs with: any squeegee and scrubber kit, including the two kits below

Best for: people willing to squeegee who want the finish a professional window cleaner gets. Skip if: you want a ready-to-spray bottle.

This is the pick for anyone who has been disappointed by sprays. The listing says one 32 oz bottle makes up to 25 gallons, which works out to about 100 parts water to 1 part concentrate. In a 3-gallon bucket (384 oz of water) that is roughly 3.8 oz of concentrate, or a little under half a cup. Because you use so little per bucket, a single bottle should last most households for years, which is why we class it as mid-range rather than premium.

The finish comes from the combination of low-residue concentrate and a squeegee, not from magic in the bottle. A properly diluted solution leaves less film to streak than a heavy cleaner, and the squeegee removes it before it dries. If you pair this concentrate with either of the kits below, you have the same setup a window-cleaning crew uses, for a small fraction of the cost of hiring one.

Pros: very low cost per bucket; ammonia-free; professional-style results with a squeegee. Cons: needs a bucket and technique; a concentrate has no sprayer.

3. Eazer 89-Inch Squeegee Kit: Best for Upper Windows

• Design: 2-in-1 rotatable head with a squeegee on one side and a scrubber on the other
• Reach: extension pole; the title says 89 inches, which is the maximum overall tool length
• Use: wash and squeegee without changing tools
• Bucket and cleaner: not included in the listing title, so buy them separately
• Weight and head width: not listed in the title we reviewed

Best for: two-story homes and tall entryway glass where the standard 5-foot reach falls short. Skip if: all your windows are at ground level, since a shorter kit will be easier to handle.

An 89-inch overall length helps you reach the second-story glass from the ground on many houses, but keep the real numbers in mind. If a first-floor window sill is about 3 feet off the ground and the top of the second-floor window is around 17 feet, you cannot reach it from the lawn with any pole of this size. A pole that is 89 inches extended (about 7.4 feet) plus your own arm reach of around 6 feet gets you roughly 13 feet. That covers many first-floor and low second-floor windows, not the top of a tall two-story facade.

The rotating head is the part that saves time. Instead of climbing down to swap a scrubber for a squeegee, you flip the head. The downside is that a long pole is hard to control in wind and tires the arms, so use short strokes and take breaks. Never use a metal or extendable pole near overhead power lines or service drops.

Pros: extended reach; scrubber and squeegee in one tool; no bucket-switching. Cons: still not enough for very tall facades; takes practice to avoid streaks at the top edge.

4. PIMEKOY Window Cleaning Kit With Bucket: Best Complete Kit

• Contents: bucket, squeegee and scrubber, per the listing title
• Reach: the title mentions a 61-inch figure; check the product page for whether it is the pole or the overall length
• Use: outdoor window washing for homes and small commercial glass
• Cleaner: not stated as included; plan to add the Unger concentrate or a gentle dish soap

Best for: beginners who want everything in one box and do not already own a bucket. Skip if: you need to reach windows above the first floor.

This is the practical starter kit. Buying the bucket, pole, squeegee and scrubber separately often adds up to more and risks mismatched threads; a kit puts them together. For a bungalow or a ground-floor sunroom, a pole around 5 feet is usually enough because you can step back and work on the lower panes while standing.

If you pair it with the Unger concentrate, you have a complete cleaning system for a modest outlay. The things to check on any kit are whether the squeegee blade is replaceable (blades dull over time), whether the scrubber sleeve is removable and washable, and whether the pole locks securely so it does not slip under pressure.

Pros: all-in-one; bucket included; good for first-timers. Cons: limited reach; cleaner not included.

5. Sprayway Foaming Glass Cleaner: Best for Frames, Doors and Small Panes

• Format: 15 oz aerosol can, sold in a pack of 6 (a 19 oz pack-of-six and other pack sizes also exist)
• Formula: foaming, ammonia-free, streakless claim according to the listing
• Use: spray, then wipe with a lint-free cloth
• Suited to: glass doors, storm windows, mirrors and automotive glass per the maker

Best for: storm door glass, front-door sidelights and small panes where foam stays put on a vertical surface. Skip if: you want to wash an entire house.

Aerosol foam clings to vertical glass instead of running off, so you can see where you have cleaned and use less liquid. That is useful when you are working on a door with decorative muntins or a window with a cluttered sill. A pack of six cans also keeps a household supplied for outdoor and indoor jobs, so it doubles as a general glass cleaner.

Think of it as a spot-cleaning tool. You will go through cans quickly if you try to clean every window on a large house with it, and aerosols are less economical than a concentrate for big jobs. Use it for the entry door and the sunroom, and use a bucket and squeegee for the rest.

Pros: foam clings to glass; no drips; works indoors and out. Cons: aerosol cans; costly for whole-house use.

6. Zep Streak-Free Glass Cleaner, 128 oz: Best Bulk Refill

• Format: 128 oz (1 gallon) ready-to-use bottle
• Formula: streak-free glass cleaner; a smaller 32 oz size is also listed
• Use: refill a trigger sprayer or a pump sprayer
• Sprayer: not included

Best for: people who clean glass often and want to refill one sprayer for months. Skip if: you want a hose-end option that needs no wiping.

The gallon bottle is about value. Refilling a spray bottle from a gallon is cheaper than buying individual 23 oz sprayers, and it leaves less plastic. It is a ready-to-use product, so you do not have to mix it, which makes it an easy upgrade for someone who currently buys small bottles.

It is best for windows you can reach by hand, such as the lower panes, glass doors and the inside of storm windows. For exteriors higher up, pair it with a pump sprayer and a squeegee. Always check the label before using any glass cleaner on tinted, coated or film-covered glass, and follow the window maker’s care guidance.

Pros: large size; ready to use; low waste. Cons: no sprayer included; needs wiping.

Also Consider

• Windex Glass & Window Cleaner, Original, 23 oz spray: the familiar trigger bottle for reachable panes and smudges.
• Windex Ammonia-Free Glass and Window Cleaner, 23 oz: a good choice if you dislike the ammonia smell or clean near plants and pets.
• Mrs. Meyer’s Clean Day Mirror and Window Cleaner, Lemon Verbena, 24 fl oz: a scented option better suited to interior-facing glass and mirrors.
• Invisible Glass Auto Glass Cleaner foaming spray: made for car glass, so keep it for windshields rather than house windows.

Worked Example: Washing a Two-Story House Step by Step

Here is a realistic plan for a typical two-story house with about 14 windows, using products from this list. First, brush cobwebs and loose dirt from the frames with a dry brush, because wet cobwebs smear across glass. Second, wet the whole exterior with a hose to loosen pollen. Third, mix a 3-gallon bucket of the Unger concentrate at roughly 4 oz of concentrate and scrub each pane with the wet scrubber side of your kit. Fourth, pull the squeegee from the top corner down in one overlapping stroke, wiping the blade with a cloth after each pass. Fifth, wipe the sill and edges with a microfiber cloth so dirty water does not run back over the glass.

For the upper floor, either extend your pole to its limit on the windows it can reach or use the hose-end Windex Outdoor cleaner to spray them from the ground, rinse, and accept a slightly less perfect finish. Plan on about 5 to 10 minutes per window with a squeegee when you are learning, falling to 3 to 5 minutes with practice, so budget an afternoon for the first full wash. Finish with the foam spray on the front door glass and any storm door panels. Those small panes are where fingerprints show most, and a quick wipe makes the whole house look cleaner.

How We Chose

We started with the outdoor window cleaning products currently available in the store connected to this site, then grouped them by job: rinse-off hose sprays, concentrates for squeegee use, extension-pole kits and ready-to-use sprays. We kept products that matched the exact search for an exterior window cleaner and also covered the related search for the best glass cleaner for windows. For each, we read the listing title and description, compared claims with the maker’s pages where possible, and recorded size, formula and format.

We did not personally use these products. This is a research-based guide, so we avoid claims about how clean any product leaves a pane and we mark unknowns as not listed. Prices appear only as tiers. We also left out interior-only electric window vacuums and car-glass tools because they answer a different search.

Buying Guide: How to Choose an Exterior Window Cleaner

Decide how high your glass is

Reach decides everything. For windows under about 7 feet, a trigger spray and cloth work. For up to roughly 13 feet, you need an extension pole of 6 to 8 feet. Above that, use a professional with fall protection or a water-fed pole system. Never lean a ladder against fragile glass or work near power lines.

Choose between rinse-off, spray-and-wipe and squeegee

Rinse-off hose cleaners are the fastest and the most forgiving. Spray-and-wipe products leave the best finish on small panes. Squeegee systems deliver the cleanest result on large panes and the lowest cost per wash, but they take practice. Many households use all three: a rinse-off wash each spring, a squeegee once or twice a year and a foam spray for the front door.

Check the formula and the surfaces around the glass

Ammonia-free formulas are easier on frames, screens and the plants beneath the window. Read the label for warnings about painted surfaces, vinyl, aluminum and coated glass. If your windows have a low-emissivity coating or a protective film, follow the window manufacturer’s cleaning instructions, and when in doubt avoid abrasive scrubbers on the glass.

Pick the right day and time

Work on an overcast day or in the shade. Direct sun dries the cleaner before you can remove it, which is the most common cause of streaks. Wind blows dust back onto wet glass, so a calm day matters. Temperatures near freezing can make a water-based cleaner freeze on the pane, so avoid cold snaps.

Plan for hard water

If your water leaves white spots on the car or the shower door, it will do the same on the windows. Squeegee instead of air-drying, and wipe the edges with a clean microfiber cloth. For heavy mineral buildup, a dedicated hard-water remover (following its label) is a better tool than extra scrubbing.

Common Exterior Window Cleaning Mistakes

• Washing in direct sunlight, so the liquid dries before you squeegee.
• Using too much concentrate; extra soap leaves a film that attracts dust.
• Skipping the frame and sill, which drip dirty water back onto clean glass.
• Reusing a dull or nicked squeegee blade, which leaves lines no matter how good the cleaner is.
• Using sharp scrapers on coated glass without checking the maker’s guidance.

Frequently Asked Questions

What is the best exterior window cleaner for a whole house?

For ease, a hose-end concentrate like Windex Outdoor is the simplest whole-house option. For the best finish, use a concentrate such as Unger with a squeegee and extension pole. Many people use the hose spray for quick washes and the squeegee for a deeper clean.

What is the best glass cleaner for windows if I only want one product?

A ready-to-use glass cleaner in a gallon refill, such as the Zep option, is the most flexible for indoor and outdoor panes you can reach. If you have tall windows, a concentrate with a squeegee kit covers more.

How often should exterior windows be cleaned?

Twice a year is a common routine, in spring and in autumn. Homes near dusty roads, the sea or heavy tree cover may need more frequent washing, and ground-floor glass often needs it sooner than upper floors.

Can I use indoor glass cleaner outside?

Often yes for small panes, but it is not designed for large dirty surfaces. Outdoor cleaners are formulated for dust, pollen and mineral spots and are usually applied in larger volumes, so they are more economical for whole-house washing.

Why do my windows streak after cleaning?

The usual causes are working in direct sun, using too much cleaner, a worn squeegee blade, or hard water drying on the glass. Switch to a cooler time of day, dilute the concentrate properly, and wipe the squeegee blade after every stroke.

Is it safe to use these cleaners around plants and pets?

Read the label. The Windex Outdoor listing says the formula will not harm plants, painted surfaces or siding, but we cannot guarantee safety for every plant or pet. Rinse well and keep animals away until the area dries; ask a vet if a pet has contact with any cleaner.

Do I need a squeegee, or will a microfiber cloth do?

A microfiber cloth works for small panes. For large windows, a squeegee is faster and leaves fewer lint marks. A cloth is still useful for wiping the edges and the sill after each pass.

Which One Should You Buy?

Choose the Windex Outdoor hose-end cleaner if you want an easy wash with no ladder. Choose the Unger concentrate with a squeegee for the best finish at the lowest long-term cost. Choose the Eazer 89-inch kit if you have upper windows, and the PIMEKOY kit if you need a bucket and starter setup. Choose Sprayway Foaming for doors and frames, and the Zep gallon for refilling a sprayer. If your house is more than two stories, hire a professional rather than trying to extend a pole to its limit.

Sources

• Windex (SC Johnson) product page for Windex Outdoor Glass & Patio Concentrated Cleaner
• Unger manufacturer information on professional glass cleaner concentrate
• Sprayway and Zep manufacturer product pages
• Window and glass maker care guidance for coated and low-emissivity glass
• Store listing titles and descriptions for each product named

Last updated: October 2026