Garage Therapy /ONE: Glass Cleaner

(6 customer reviews)

£9.00£35.00 Incl. VAT

Express delivery from £4.99
Free delivery over £40 (UK Mainland)
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Product Info

Garage Therapy /ONE: Glass Cleaner is a premium robust glass cleaner that cleans windscreens, windows, and mirrors, for both exterior and interior glass surfaces.

Garage Therapy /ONE: Glass has been infused with a powerful functional blend of surfactants, to specifically target contaminants that commonly cause smearing such as sap, oils and grease.

The effect is that Garage Therapy /ONE: Glass quickly and efficiently cleans dirt, dust, fingerprints, sap, oil, grease, and much more from your glass surfaces.

This unique formulation offers superior cleaning performance, tackling the dirtiest of glass surfaces. Containing a premium blend of surfactants to deal with a wide variety of contaminants. It is the perfect solution for glass in both cold and hot climates.

Garage Therapy /ONE: Glass is our vision of the perfect streak free glass cleaner, without sacrificing user experience and performance.


  • Premium Quality
  • High Performance Surfactants
  • Streak Free, Efficient, Quick and Easy
  • Compatible with Glass and Plastic
  • Non-Abrasive Formulation


  1. Shake well before use. Do not work in full sunlight or spray directly onto hot glass
  2. Spray /ONE: Glass onto the contaminated surface, or to avoid overspray, spray directly on your preferred short pile glass cleaning towel
  3. Spread /ONE: Glass evenly over the surface to allow the surfactants to attack and emulsify the contaminants
  4. After 5-10 seconds, with a clean glass cloth, wipe away the residue to reveal a smear free, crystal-clear finish

For Best Results

  1. Use two premium glass cleaning towels. One for application and the other for wiping away the residue
  2. Change towels frequently once they are saturated with contaminants
  3. /ONE: Glass can be used for spot cleaning on bodywork for insects, tree sap, and bird droppings
  4. Clean your glass regularly to avoid contamination build up
  5. For deep cleaning, use /ONE: Decon shampoo during the wash phase to cleanse the glass

Delivery Info

We have multiple delivery options

  • Next day DHL/UK Mail carrier (UK Mainland)
  • 1-3 day DHL/UK Mail carrier (UK Mainland)
  • 2-3 day DHL/UK Mail carrier (Highlands, Islands & N.Ireland)
  • Click & Collect from store


The cost of the carriage will be displayed before your final checkout. Free delivery is available on orders over £40 for the UK mainland, and £60 for Highlands, Islands & N.Ireland.


  • Orders will only be dispatched and delivered on weekdays.
  • Orders for the next working day delivery must be placed before 2 pm. This gives us time to pick and pack before the carrier arrives to collect.
  • We aim to dispatch all orders within 48 hours of order receipt, Monday to Friday.
  • A despatch email will be sent when your goods leave us, if your order is delayed for any reason we will contact you.


We pride ourselves on our customer service but mistakes can happen. If you receive an incorrect or faulty item, please notify us within 30 days to arrange a refund, return or exchange. Contact Us.

6 reviews for Garage Therapy /ONE: Glass Cleaner

  1. GM Details

    I love this glass cleaner!, it provides a fantastic working time before flashing off leaving a perfectly clean surface on glass and mirrors (obv the cloth plays a part too!)
    I’m not one for using a quick detailer for glass and much prefer a dedicated product designed for purpose and although many say ‘a glass cleaner is just a glass cleaner’ for this one, it simply is a level above the rest.
    To compare with a generic cheaper product I would possibly use 250ml cleaning glass around my cars interior and exterior, with the GT glass cleaner, it’s less than 50ml, and that’s being generous.
    Clarity of the glass is incredible and tests on the house glass make it look like the glass isn’t there at all!

  2. Patrick (verified owner)

    AS expected from GT the glass cleaner is top quality and streak free when used with the correct towel.

  3. Paul Wilding (verified owner)

    Purchased this glass cleaner after already being impressed with all the other GT products I have used. Was not disappointed at all. I’ve used a few glass cleaners but this one stands out. The inside of my front windscreen was filthy I cleaned it this morning and it done an amazing job!! Couldn’t recommend enough.

  4. Eddie (verified owner)

    Another amazing product from Garage Therapy. Perfect finish every time. I go with two towels. Spray directly onto glass and remove with a fish scale cloth then with the second cloth I mist on some /ONE: Glass and then wipe over the glass for a second time.

  5. Patrick (verified owner)

    I don’t think you will find such a good glass cleaner in 5L quantities for this price. It is another excellent GT product

  6. nicholas (verified owner)

    This is such a nice glass cleaner and i have tried a few! Best so far…

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