Best Concentrated Window Cleaner of 2026

Last updated on 01/04/2026
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1
Unger Professional Window Cleaning Liquid 5L - Eco Friendly & Smear Free Window Glass Cleaner - Economical 1:100 Mixing Ratio for 500 litres of UNGER's Liquid
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Unger Professional Window Cleaning Liquid 5L - Eco Friendly & Smear Free Window Glass Cleaner - Economical 1:100 Mixing Ratio for 500 litres of UNGER's Liquid

Unger
Why we love it
  • Superior streak-free cleaning power.
  • Economical with high yield ratio.
  • Skin friendly, pH balanced soap.
Main Highlights
  • SMEAR-FREE WINDOW CLEANING - UNGER’s Liquid effortlessly removes dirt and grease with streak-free results, providing superior cleaning power. A classic choice for professional window cleaners, and ideal for any window cleaning kit. Use in combination with washers and squeegees for optimum cleaning results.
  • QUICK, EASY GLIDE FOR SQUEEGEES - Provides enough slip to allow an easy glide over glass with a window squeegee. The right dosage provides enough suds to see where you've washed, and allows you to wipe them off easily and quickly for faster cleaning.
  • ECONOMICAL 1:100 MIXING RATIO - Excellent value for both professionals and occasional users with a highly concentrated formula. The 1:100 dilution ratio means just 50 ml of solution is enough for 5 litres of water. Ideal for high-volume cleaning jobs and helps lower overall cleaning costs without compromising on performance.
  • YIELDS 500 LITRES OF CLEANING FLUID - With one 5 litre bottle of UNGER’s Liquid, you can mix up to 500 litres of cleaning fluid. Simply add the liquid concentrate to water and start cleaning.
  • SKIN FRIENDLY pH NEUTRAL SOAP - The window-cleaning soap is also pH-neutral. So not only is it easy to rinse, but it's also kind to your skin and won't cause irritation. Equipped with a secure, child-proof safety lid to prevent leakage and prevent children from opening.
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9.8
Exceptional
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9.8
Exceptional
Unger

Unger Professional Window Cleaning Liquid 5L - Eco Friendly & Smear Free Window Glass Cleaner - Economical 1:100 Mixing Ratio for 500 litres of UNGER's Liquid

Why we love it
  • Superior streak-free cleaning power.
  • Economical with high yield ratio.
  • Skin friendly, pH balanced soap.
Main Highlights
  • SMEAR-FREE WINDOW CLEANING - UNGER’s Liquid effortlessly removes dirt and grease with streak-free results, providing superior cleaning power. A classic choice for professional window cleaners, and ideal for any window cleaning kit. Use in combination with washers and squeegees for optimum cleaning results.
  • QUICK, EASY GLIDE FOR SQUEEGEES - Provides enough slip to allow an easy glide over glass with a window squeegee. The right dosage provides enough suds to see where you've washed, and allows you to wipe them off easily and quickly for faster cleaning.
  • ECONOMICAL 1:100 MIXING RATIO - Excellent value for both professionals and occasional users with a highly concentrated formula. The 1:100 dilution ratio means just 50 ml of solution is enough for 5 litres of water. Ideal for high-volume cleaning jobs and helps lower overall cleaning costs without compromising on performance.
  • YIELDS 500 LITRES OF CLEANING FLUID - With one 5 litre bottle of UNGER’s Liquid, you can mix up to 500 litres of cleaning fluid. Simply add the liquid concentrate to water and start cleaning.
  • SKIN FRIENDLY pH NEUTRAL SOAP - The window-cleaning soap is also pH-neutral. So not only is it easy to rinse, but it's also kind to your skin and won't cause irritation. Equipped with a secure, child-proof safety lid to prevent leakage and prevent children from opening.
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Value for Money
2
3 x HG window cleaner 500 ml – A super concentrated window cleaner fluid for window cleaning without streaks A window cleaning solution used by professional window cleaners

3 x HG window cleaner 500 ml – A super concentrated window cleaner fluid for window cleaning without streaks A window cleaning solution used by professional window cleaners

HG
Why we love it
  • Trusted Brand Quality Assured.
  • Exceptionally Clean Windows Guaranteed.
  • Economical Concentrated Formula.
Main Highlights
  • *Packaging May Vary* HG have updated their product labels, the contents remain exactly the same. The name has changed on selected product lines
  • Old Name: HG Window Cleaner
  • New Name: HG Window Cleaner Concentrate
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9.6
Superb
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9.6
Superb
HG

3 x HG window cleaner 500 ml – A super concentrated window cleaner fluid for window cleaning without streaks A window cleaning solution used by professional window cleaners

Why we love it
  • Trusted Brand Quality Assured.
  • Exceptionally Clean Windows Guaranteed.
  • Economical Concentrated Formula.
Main Highlights
  • *Packaging May Vary* HG have updated their product labels, the contents remain exactly the same. The name has changed on selected product lines
  • Old Name: HG Window Cleaner
  • New Name: HG Window Cleaner Concentrate
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3
VerritexPro Concentrated Glass Greenhouse Conservatory Cleaner, Greenhouse Cleaner As Used By The Professionals for Window Cleaning, Conservatory Roof Cleaner, Concrete Cleaner, Dilutes 1:20

VerritexPro Concentrated Glass Greenhouse Conservatory Cleaner, Greenhouse Cleaner As Used By The Professionals for Window Cleaning, Conservatory Roof Cleaner, Concrete Cleaner, Dilutes 1:20

P Dot Wolf
Why we love it
  • Covers Large Areas Easily.
  • Biodegradable And Acid Free.
  • Removes Algae And Grime.
Main Highlights
  • 5 Litre - Makes 105 Litres of Active Solution - Covers 1250 sqm
  • Just apply with sprayer, brush or sponge. Then rinse off with water. Agitate before rinsing if contamination is heavy.
  • ACID FREE - BIODEGRADABLE
  • Easily Removes - Green Algae,Dirt,Soot,Sticky Sap,Grease,Soil,Pesticide * Chemical residues.
  • VerritexPro achieves "MAXIMUM" Sparkle and Clarity...essential for healthy and efficient plant growth.
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9.6
Superb
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9.6
Superb
P Dot Wolf

VerritexPro Concentrated Glass Greenhouse Conservatory Cleaner, Greenhouse Cleaner As Used By The Professionals for Window Cleaning, Conservatory Roof Cleaner, Concrete Cleaner, Dilutes 1:20

Why we love it
  • Covers Large Areas Easily.
  • Biodegradable And Acid Free.
  • Removes Algae And Grime.
Main Highlights
  • 5 Litre - Makes 105 Litres of Active Solution - Covers 1250 sqm
  • Just apply with sprayer, brush or sponge. Then rinse off with water. Agitate before rinsing if contamination is heavy.
  • ACID FREE - BIODEGRADABLE
  • Easily Removes - Green Algae,Dirt,Soot,Sticky Sap,Grease,Soil,Pesticide * Chemical residues.
  • VerritexPro achieves "MAXIMUM" Sparkle and Clarity...essential for healthy and efficient plant growth.
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4
VerritexPro Concentrated Glass Greenhouse Cleaner, Conservatory Cleaning, Greenhouse Cleaning As Used By The Professionals for Window Cleaning, Conservatory Roof Cleaner, 2.5Ltr (2.5ltrs)
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VerritexPro Concentrated Glass Greenhouse Cleaner, Conservatory Cleaning, Greenhouse Cleaning As Used By The Professionals for Window Cleaning, Conservatory Roof Cleaner, 2.5Ltr (2.5ltrs)

P Dot Wolf
Why we love it
  • Acid free and biodegradable.
  • Easy application and rinse.
  • Ensures healthy plant growth.
Main Highlights
  • 5 Litre - Makes 105 Litres of Active Solution - Covers 1250 sqm
  • Just apply with sprayer, brush or sponge. Then rinse off with water. Agitate before rinsing if contamination is heavy.
  • ACID FREE - BIODEGRADABLE
  • Easily Removes - Green Algae,Dirt,Soot,Sticky Sap,Grease,Soil,Pesticide * Chemical residues.
  • VerritexPro achieves "MAXIMUM" Sparkle and Clarity...essential for healthy and efficient plant growth.
Show More
9.5
Superb
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9.5
Superb
P Dot Wolf

VerritexPro Concentrated Glass Greenhouse Cleaner, Conservatory Cleaning, Greenhouse Cleaning As Used By The Professionals for Window Cleaning, Conservatory Roof Cleaner, 2.5Ltr (2.5ltrs)

Why we love it
  • Acid free and biodegradable.
  • Easy application and rinse.
  • Ensures healthy plant growth.
Main Highlights
  • 5 Litre - Makes 105 Litres of Active Solution - Covers 1250 sqm
  • Just apply with sprayer, brush or sponge. Then rinse off with water. Agitate before rinsing if contamination is heavy.
  • ACID FREE - BIODEGRADABLE
  • Easily Removes - Green Algae,Dirt,Soot,Sticky Sap,Grease,Soil,Pesticide * Chemical residues.
  • VerritexPro achieves "MAXIMUM" Sparkle and Clarity...essential for healthy and efficient plant growth.
Show More
5
2Work Glass and Window Cleaner 5 Litre Bottle 2W76001
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2Work Glass and Window Cleaner 5 Litre Bottle 2W76001

2WORK
Why we love it
  • Ready to use convenience.
  • Streak free, sparkling finishes.
  • Safe, Biodegradable and phosphate free.
Main Highlights
  • Ready to use glass, window and plastic cleaner
  • Leaves a streak free, sparkling finish
  • Excellent results on windows, glass, mirrors, VDU screens, stainless steel and all hard surfaces
  • Biodegradable and phosphate-free
  • 5 litres
  • For Professional Use Only
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9.4
Superb
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9.4
Superb
2WORK

2Work Glass and Window Cleaner 5 Litre Bottle 2W76001

Why we love it
  • Ready to use convenience.
  • Streak free, sparkling finishes.
  • Safe, Biodegradable and phosphate free.
Main Highlights
  • Ready to use glass, window and plastic cleaner
  • Leaves a streak free, sparkling finish
  • Excellent results on windows, glass, mirrors, VDU screens, stainless steel and all hard surfaces
  • Biodegradable and phosphate-free
  • 5 litres
  • For Professional Use Only
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6
2 x HG window cleaner 500 ml – A super concentrated window cleaner fluid for window cleaning without streaks A window cleaning solution used by professional window cleaners

2 x HG window cleaner 500 ml – A super concentrated window cleaner fluid for window cleaning without streaks A window cleaning solution used by professional window cleaners

HG
Why we love it
  • Maintains quality with new packaging.
  • Revamped name, identical formulation.
  • Ensures streak-free windows.
Main Highlights
  • *Packaging May Vary* HG have updated their product labels, the contents remain exactly the same. The name has changed on selected product lines
  • Old Name: HG Window Cleaner
  • New Name: HG Window Cleaner Concentrate
Show More
9.3
Superb
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9.3
Superb
HG

2 x HG window cleaner 500 ml – A super concentrated window cleaner fluid for window cleaning without streaks A window cleaning solution used by professional window cleaners

Why we love it
  • Maintains quality with new packaging.
  • Revamped name, identical formulation.
  • Ensures streak-free windows.
Main Highlights
  • *Packaging May Vary* HG have updated their product labels, the contents remain exactly the same. The name has changed on selected product lines
  • Old Name: HG Window Cleaner
  • New Name: HG Window Cleaner Concentrate
Show More
7
5 Litre Glass & Window Cleaner Ready To Use No Streak Formula Spotless Clear Windows With Convenient Long Hose Trigger (1)
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5 Litre Glass & Window Cleaner Ready To Use No Streak Formula Spotless Clear Windows With Convenient Long Hose Trigger (1)

STORM TRADING GROUP
Why we love it
  • Streak-free shine every time.
  • Convenient trigger hose included.
  • Cleans without scrubbing needed.
Main Highlights
  • 5L GLASS WINDOW CLEANER: This window and glass cleaner cuts through grease and grime with ease, leaving a crystal clear shine. Our window cleaner is designed to tackle dirt, grime, and build-up on outdoor windows, this powerful yet gentle formula delivers professional-level results without the need for scrubbing or ladders. Our formula is also ready to use straight from the bottle.
  • CLEANS & FRESHENS: Our glass cleaner has a no streak formula which delivers spotless clear results. The superior cleaning formula cuts through grime and dirt easily and leaves your glass with no residue.
  • CONVENIENT TRIGGER HOSE: Each bottle comes complete with a convenient trigger hose. This trigger hose is long which makes it easier to reach them difficult areas and also makes your job that much easier. Our formula is also ready to use straight from the bottle. Simply attach the trigger and spray.
  • SIZE DIMENSIONS: Each bottle is 5 Litres with a trigger hose. Simply select the number of bottles required from the menu above (each bottle will come with a trigger hose).
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9.1
Superb
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9.1
Superb
STORM TRADING GROUP

5 Litre Glass & Window Cleaner Ready To Use No Streak Formula Spotless Clear Windows With Convenient Long Hose Trigger (1)

Why we love it
  • Streak-free shine every time.
  • Convenient trigger hose included.
  • Cleans without scrubbing needed.
Main Highlights
  • 5L GLASS WINDOW CLEANER: This window and glass cleaner cuts through grease and grime with ease, leaving a crystal clear shine. Our window cleaner is designed to tackle dirt, grime, and build-up on outdoor windows, this powerful yet gentle formula delivers professional-level results without the need for scrubbing or ladders. Our formula is also ready to use straight from the bottle.
  • CLEANS & FRESHENS: Our glass cleaner has a no streak formula which delivers spotless clear results. The superior cleaning formula cuts through grime and dirt easily and leaves your glass with no residue.
  • CONVENIENT TRIGGER HOSE: Each bottle comes complete with a convenient trigger hose. This trigger hose is long which makes it easier to reach them difficult areas and also makes your job that much easier. Our formula is also ready to use straight from the bottle. Simply attach the trigger and spray.
  • SIZE DIMENSIONS: Each bottle is 5 Litres with a trigger hose. Simply select the number of bottles required from the menu above (each bottle will come with a trigger hose).
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8
Supagard Professional Glass Cleaner/Streak-Free Highly Concentrated Window Cleaner For Cars and Homes - 500ml, Removes Toughest Dirt/Extra Strong Formulation
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Supagard Professional Glass Cleaner/Streak-Free Highly Concentrated Window Cleaner For Cars and Homes - 500ml, Removes Toughest Dirt/Extra Strong Formulation

Supagard
Why we love it
  • Ultimate cleaning power guaranteed.
  • Streak-free crystal-clear finish.
  • Includes premium microfibre cloth.
Main Highlights
  • Ultimate Cleaning Power: Easily removes tough dirt, grime, and grease from windows and mirrors.
  • Streak-Free Shine: Leaves a crystal-clear, streak-free finish on all glass surfaces.
  • Highly Concentrated Formula: Economical, long-lasting solution for frequent use.
  • Versatile Application: Ideal for cars, homes, and more, suitable for all types of glass, mirrors, and plastics.
  • Microfibre Cloth Included: Comes with a premium microfibre cloth for the best cleaning results.
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8.9
Excellent
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8.9
Excellent
Supagard

Supagard Professional Glass Cleaner/Streak-Free Highly Concentrated Window Cleaner For Cars and Homes - 500ml, Removes Toughest Dirt/Extra Strong Formulation

Why we love it
  • Ultimate cleaning power guaranteed.
  • Streak-free crystal-clear finish.
  • Includes premium microfibre cloth.
Main Highlights
  • Ultimate Cleaning Power: Easily removes tough dirt, grime, and grease from windows and mirrors.
  • Streak-Free Shine: Leaves a crystal-clear, streak-free finish on all glass surfaces.
  • Highly Concentrated Formula: Economical, long-lasting solution for frequent use.
  • Versatile Application: Ideal for cars, homes, and more, suitable for all types of glass, mirrors, and plastics.
  • Microfibre Cloth Included: Comes with a premium microfibre cloth for the best cleaning results.
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9
Miniml Window & Glass Cleaner 5L Refill - Mint Scented, Streak-Free Finish, Cruelty-Free, Vegan, Natural & Plant-Based Non-Toxic Cleaning Formula, Bulk Buy
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Miniml Window & Glass Cleaner 5L Refill - Mint Scented, Streak-Free Finish, Cruelty-Free, Vegan, Natural & Plant-Based Non-Toxic Cleaning Formula, Bulk Buy

Miniml
Why we love it
  • Streak-free shine every time.
  • Refreshing mint aroma while cleaning.
  • Eco-friendly and safe ingredients.
Main Highlights
  • ✅STREAK-FREE SHINE: Miniml’s Window & Glass Cleaner provides a crystal-clear, streak-free finish every time. Enjoy spotless windows and glass surfaces without any residue or smears.
  • ✅REFRESHING MINT SCENT: Infused with a 99.9% natural mint aroma, this cleaner leaves your home smelling fresh and invigorated while you clean, providing a refreshing cleaning experience.
  • ✅ECO-FRIENDLY & SAFE: Made with natural, plant-based ingredients, this cleaner is cruelty-free, vegan, and free from alcohol and VOCs. A gentle yet powerful solution that’s kind to the environment and your home.
  • ✅FAST EVAPORATION: This fast-evaporating formula ensures a quick and easy clean with no lingering wet spots.
  • ✅ZERO WASTE: Our sustainable solutions go far beyond your purchase; refill your forever bottles with this 5 litre refill; the empty packaging from refills can be returned to our factory to be cleaned, reused and refilled; scan the QR code on the back of our refills to arrange a return so it can be reused again and again.
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8.7
Excellent
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8.7
Excellent
Miniml

Miniml Window & Glass Cleaner 5L Refill - Mint Scented, Streak-Free Finish, Cruelty-Free, Vegan, Natural & Plant-Based Non-Toxic Cleaning Formula, Bulk Buy

Why we love it
  • Streak-free shine every time.
  • Refreshing mint aroma while cleaning.
  • Eco-friendly and safe ingredients.
Main Highlights
  • ✅STREAK-FREE SHINE: Miniml’s Window & Glass Cleaner provides a crystal-clear, streak-free finish every time. Enjoy spotless windows and glass surfaces without any residue or smears.
  • ✅REFRESHING MINT SCENT: Infused with a 99.9% natural mint aroma, this cleaner leaves your home smelling fresh and invigorated while you clean, providing a refreshing cleaning experience.
  • ✅ECO-FRIENDLY & SAFE: Made with natural, plant-based ingredients, this cleaner is cruelty-free, vegan, and free from alcohol and VOCs. A gentle yet powerful solution that’s kind to the environment and your home.
  • ✅FAST EVAPORATION: This fast-evaporating formula ensures a quick and easy clean with no lingering wet spots.
  • ✅ZERO WASTE: Our sustainable solutions go far beyond your purchase; refill your forever bottles with this 5 litre refill; the empty packaging from refills can be returned to our factory to be cleaned, reused and refilled; scan the QR code on the back of our refills to arrange a return so it can be reused again and again.
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10
Kärcher Window Cleaner Concentrate RM 500, for streak-free cleaning of windows, glass, mirrors and shower screens, 500ml concentrate dilutes to 4l cleaning liquid.
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Kärcher Window Cleaner Concentrate RM 500, for streak-free cleaning of windows, glass, mirrors and shower screens, 500ml concentrate dilutes to 4l cleaning liquid.

Kärcher
Why we love it
  • Streak-free smooth surfaces.
  • Effortlessly removes stubborn stains.
  • Fresh, clean aroma.
Main Highlights
  • For streak-free cleaning of all water-resistant smooth surfaces, such as windows, mirrors, glass tables or glass shower screens.
  • Removes even stubborn stains such as grease, insects and dirt without any surface damage
  • Provides a fresh, clean aroma during and after the cleaning process
  • The bio-degradable formula ensures that the detergent is kind to our environment
  • Can be used manually, or with the Karcher Spray Bottle. Pour 1.5 capfuls of concentrate into the spray bottle and fill up with 220 ml of water
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8.7
Excellent
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8.7
Excellent
Kärcher

Kärcher Window Cleaner Concentrate RM 500, for streak-free cleaning of windows, glass, mirrors and shower screens, 500ml concentrate dilutes to 4l cleaning liquid.

Why we love it
  • Streak-free smooth surfaces.
  • Effortlessly removes stubborn stains.
  • Fresh, clean aroma.
Main Highlights
  • For streak-free cleaning of all water-resistant smooth surfaces, such as windows, mirrors, glass tables or glass shower screens.
  • Removes even stubborn stains such as grease, insects and dirt without any surface damage
  • Provides a fresh, clean aroma during and after the cleaning process
  • The bio-degradable formula ensures that the detergent is kind to our environment
  • Can be used manually, or with the Karcher Spray Bottle. Pour 1.5 capfuls of concentrate into the spray bottle and fill up with 220 ml of water
Show More

We scanned 810 products

We reviewed these offers relevant to the Concentrated Window Cleaner within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like Unger, HG, P Dot Wolf, 2WORK, STORM TRADING GROUP, Supagard, Miniml, Kärcher, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.
For the best Concentrated Window Cleaner in the market, we considered we took a deep dive into 4051 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that: