Composite Cladding Care Guide

Composite cladding is engineered to look great with minimal upkeep, especially when compared with timber or uPVC. It’s highly weather-resistant, durable, and made with sustainability in mind. This guide explains routine cleaning, seasonal care and best-practice maintenance so your façade continues to perform in residential and commercial settings year after year.

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Thu, 28 Jul 2026

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Routine Cleaning & Maintenance

Keeping your composite decking clean is straightforward. Regular upkeep not only maintains its visual appeal but also prevents dirt build-up and ensures effective drainage between boards.

How to Clean Composite Cladding (step-by-step)

  1. Dry brush: Use a soft brush to remove loose dust and debris.

  2. Prepare solution: Mix warm water with a mild, biodegradable detergent.

  3. Wash down: Apply with a soft-bristle brush or non-abrasive cloth, working with the board direction.

  4. Rinse thoroughly: Use clean water to remove residue.

  5. Air dry: Allow panels to dry naturally.

Good to Know

  • Frequency: Clean at least twice a year (spring and autumn). Increase frequency in coastal or urban areas.

  • Avoid: Harsh solvents, abrasive pads, wire brushes, undiluted bleach or highly alkaline cleaners.

  • Joints & trims: Check and clear joints, drip edges and trims to prevent debris build-up and maintain ventilation and drainage behind the cladding.

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Seasonal Care Tips

Keep a simple seasonal routine to preserve a consistent appearance:

  • After Winter / rainy periods:

    Remove dirt, pollen and mildew using warm soapy water and a soft brush.

  • Spring & Summer:

    A light clean prepares the façade for drier months.

    No repainting, oiling, or sealing required, composite cladding is designed for low maintenance.

  • Autumn:

    Clear leaf litter from trims, ventilated cavities and drip details to keep airflow unobstructed.

Stain & Mark Removal

Everyday marks can usually be removed with careful technique.

  • General stains (mud, dust, grime): Warm soapy water + soft brush; rinse thoroughly.

  • Grease / oily marks: Treat promptly with a diluted, pH-neutral degreaser safe for composites; test on a small area first.

  • Water spots: Use a soft cloth with a mild vinegar solution (well diluted), then rinse.

  • Construction residue: Avoid harsh cement removers; use non-abrasive cleaners and gentle mechanical action only.

Capped vs Uncapped Surfaces

  • Capped Cladding: Enhanced resistance to stains and fading thanks to the protective cap. For persistent marks, a gentle rinse can help.

  • Uncapped Cladding: Clean spills sooner to reduce the chance of light staining. Avoid abrasive pads or sanding that may alter surface texture.

Pressure Washing Guidance

  • If needed, use low pressure, hold the washer at least 30–40 cm from the surface and use a wide fan at an angle. Concentrated jets can damage profiles.

Long-Term Durability & Colour Stability

EnviroBuild composite cladding is built for longevity with minimal intervention.

  • Natural weathering: A small amount of colour fading may occur over the first few months as boards weather. The colour tone stabilises after 1-3 months.

  • UV & fade resistance: Formulations include UV inhibitors for long-term colour performance.

  • Periodic inspections: Once or twice a year, check fixings, battens, trims and ventilation paths.

Technical Support & Resources

For product-specific details, always refer to the guidance for your exact range and profile:

  • Composite Cladding Downloads

Contact our expert technical team on 020 8088 4888 for help with cleaning methods, stain removal or maintenance planning for your project.