Trusted and praised by customers ★★★★★
Need Help? support@tradesuppliesuk.co.uk
  • Free mainland delivery on orders over £100

  • Five-Star Rated ★★★★★

  • Free and Fast Technical Advice

Quality Image 1
Quality Image 2
Quality Image 3
Quality Image 4

Extreme Clean UPVC Cleaner for Window & Door Frames 5.0 kg

Manufactured by Extreme Clean

Why Choose Our Products?

Icon

Caustic-free cleaner for exterior UPVC window and door frames

Icon

Suitable for conservatories

Icon

fascias

Icon

soffits

Icon

guttering and plastic cladding

Icon

Concentrated formula: follow the label for routine or heavy-soil dilution

Icon

Apply

Icon

agitate lightly and rinse thoroughly

Icon

Test coated surfaces and rubber seals before use

Icon

Wear gloves and eye protection; avoid release to the environment

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Klarna
  • Maestro
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa

Extreme Clean UPVC Cleaner is a concentrated exterior cleaner for UPVC window and door frames, conservatories, fascias, soffits, guttering and plastic cladding. It helps lift dirt, grime and traffic film during routine exterior maintenance.

The linked product sheet describes an aqueous surfactant blend with quaternary ammonium compounds and a hydrophobic additive. Follow the label, test an inconspicuous area first and rinse thoroughly. See our UPVC cleaning and maintenance guide for more information.

This concentrated formula can be diluted for routine cleaning or applied neat for heavy staining, making it highly economical and adaptable for a wide range of tasks.

Key Features & Benefits

  • Professional strength: lifts chalking, traffic film, and greasy deposits without harsh caustics

  • Biocide action: kills and inhibits algae, mould, lichen, and mildew on exterior plastics

  • Protective finish: hydrophobic layer slows re-soiling and water streaking

  • Gentle yet effective: test compatibility on coated surfaces, acrylic panels and rubber seals before use

  • Economical concentrate: dilute up to 1:10 for maintenance or use neat on heavy contamination

  • Use responsibly: wear gloves and eye protection, avoid release to the environment and follow the product label.

Ideal Uses

  • UPVC window and door frames

  • Conservatories, roof lanterns, and skylight surrounds

  • Fascias, soffits, and guttering

  • Cladding panels and dormer cheeks

  • Garden furniture, plastic benches, and pergola trims

Sizes & Coverage

Pack Size

Dilution 1:10 Coverage

Neat/Heavy Soil Coverage

5 L

≈ 150 m²

≈ 40 m²

20 L

≈ 600 m²

≈ 160 m²

Coverage varies depending on surface texture and level of contamination.

Why Choose Extreme Clean UPVC Cleaner

  • Caustic-free cleaner for exterior UPVC; test nearby finishes and seals before use

  • Kills and removes algae, moss, lichen, and condensation mould

  • Leaves a hydrophobic film to help prevent future staining and water pooling

  • Concentrated formula allows flexible dilution for light or heavy cleaning

  • Free-rinsing system for easy spray-on, rinse-off application

  • Supplied in durable UN-approved HDPE containers

  • Manufactured and bottled in the UK with next-day mainland shipping available

Note:However, please bear in mind on some occasions the packaging may arrive slightly damaged. Please do not order if you won't be satisfied with this.

Preparation

  • Safety: Wear gloves and eye protection during use. Work out of direct sunlight.
  • Surface Check: Ensure all areas are cool and dry. Remove loose dirt or debris before cleaning.
  • Plant Protection: Pre-wet any nearby plants and delicate landscaping to prevent accidental damage from overspray.

Dilution & Mixing

  • Routine Cleaning: Dilute up to 1:10 with clean water for regular UPVC maintenance.
  • Heavy Soiling: Use neat on severe staining, black run-off streaks, or stubborn algae growth.
  • Mixing: Stir or shake the container briefly to ensure consistency before decanting.

Application Steps

  • Apply: Use a low-pressure sprayer, sponge, or soft brush. Start from the bottom and work upwards to avoid streaking.
  • Dwell Time: Allow 2–5 minutes of contact. Keep the surface wet and do not allow the cleaner to dry on the surface.
  • Agitate: Lightly scrub stubborn areas with a non-scratch pad or soft-bristle brush for best results.
  • Rinse: Rinse thoroughly with a hose or low-pressure washer until all runoff is clear.
  • Repeat: A second application may be applied after 24 hours if required for severe biological growth.

Finishing Tips

  • Gloss Boost: After rinsing, finish with a microfiber cloth to enhance the natural gloss of UPVC window frames and panels.

Important Restrictions

  • Sensitive Surfaces: Not recommended for polished anodised aluminium without a prior test.
  • Chemical Mixing: Do not mix with bleach, acidic cleaners, or other chemicals.

Plants & Lawns: Avoid direct overspray onto delicate foliage. Always rinse any accidental contact immediately.

PropertyValue
ProductExtreme Clean UPVC Cleaner
FormulationAqueous blend of surfactants, quaternary ammonium compounds and a hydrophobic additive
AppearanceClear or pale-coloured liquid
OdourMild detergent
pH (neat)Approximately 7–9
DilutionUp to 1:10 for maintenance cleaning; neat for heavy soiling, following the label
ApplicationApply, agitate lightly with a brush or cloth, then rinse with clean water
Pack sizes5L, 10L, 20L
PrecautionsWear protective gloves and eye protection. Do not mix with bleach or acid-based cleaners. Avoid release to the environment.
Hazard statementsH319: Causes serious eye irritation. H412: Harmful to aquatic life with long lasting effects.
StorageKeep tightly closed in a cool, dry, well-ventilated place. Protect from freezing.

Based on the linked Extreme Clean UPVC Cleaner safety data sheet dated 2 July 2025. Always follow the supplied label and current product-specific safety guidance.

DATA SHEETS AND PRODUCT FILES

Below are all the product files available for this coating. If you require any further information on this product, please email us at support@tradesuppliesuk.co.uk and one of our team will be happy to help.

COVERAGE CALCULATOR
MEASURE YOUR DIMENSIONS

Frequently Asked Questions

What surfaces can Extreme Clean UPVC Cleaner be used on?
This cleaner is suitable for UPVC window and door frames, conservatories, fascia boards, soffits, guttering, cladding panels, skylight surrounds, and plastic garden furniture. Check compatibility before use on powder-coated aluminium or acrylic panels.
Is it safe for rubber seals and gaskets?
Test an inconspicuous area first and follow the label. Avoid prolonged contact with seals and rinse thoroughly; do not assume every seal or coating is compatible.
Can I use it on coloured or painted UPVC?
Test a small inconspicuous area first and check the product label and coating manufacturer's guidance. Do not apply to damaged or flaking finishes.
Do I need to dilute the product?
For routine cleaning, dilute up to 1:10 with clean water. For heavy soiling or black streaks, it can be applied neat for maximum cleaning power.
How long should I leave it on the surface before rinsing?
Allow the cleaner to dwell for 2–5 minutes while keeping the surface wet. Do not let the product dry before rinsing.
Does it prevent algae or mould regrowth?
Yes, the cleaner contains a quaternary biocide that kills existing algae, mould, and lichen while helping to inhibit future regrowth.
Can it be used indoors?
It is designed for outdoor use on exterior plastics and should only be applied in well-ventilated areas.
Is it safe around plants and lawns?
Avoid overspray onto plants and lawns, and prevent release to drains and waterways. The linked product sheet identifies harm to aquatic life; follow its handling and disposal precautions.
How much coverage can I expect from a 5 L container?
When diluted 1:10, a 5 L container covers approximately 150 m². Used neat, it will cover around 40 m² depending on surface texture and contamination.
What is the drying time after cleaning?
Rinse thoroughly after application and allow surfaces to air dry naturally. Drying times vary depending on weather and temperature.
Can I use a pressure washer with this cleaner?
Yes, you can rinse with a low-pressure washer after application. Avoid high-pressure settings that could damage seals or coatings.
How often should I clean UPVC surfaces with this product?
For best results, clean UPVC surfaces every 3–6 months, or more frequently in areas exposed to heavy traffic film, algae, or pollution.
Is it safe for glass and nearby painted surfaces?
Check compatibility and test nearby finishes first. Avoid overspray and rinse any accidental contact promptly, following the product label.
Does it leave a protective layer?
Yes, the cleaner leaves a microscopic hydrophobic film that repels water and slows the adhesion of new dirt, keeping surfaces cleaner for longer.

Select Variant and Order

Regular price £28.99 (inc VAT)
Tax included Shipping calculated at checkout.
Our Experts Recommended

Size