Render Cleaning

Professional Render Cleaning Services

Modern rendered houses look stunning when clean, but they’re notorious for developing unsightly algae, red staining and pollution grime. Our professional soft wash render cleaning service safely removes these problems, restoring your home’s appearance.

Common Render Problems

Rendered walls are particularly prone to:

• Green algae – the most common issue, especially on shaded walls
• Red/pink algae – Trentepohlia algae leaving distinctive staining
• Black algae/mould – often appearing as dark streaks
• Pollution staining – grey/black discolouration from traffic
• Organic staining – from trees, leaves and berries

These don’t just look bad – they can actually damage render over time if left untreated.

Why Soft Washing, Not Pressure Washing?

Render is more delicate than you might think. High-pressure washing can:

• Damage the render surface
• Force water into the wall, causing damp
• Strip paint or sealant
• Create an uneven finish

Our soft wash method uses low pressure (similar to a garden hose) combined with professional-grade cleaning solutions. This kills algae at the root while being completely safe for your render.

Our Render Cleaning Process

1. Assessment

We inspect your render to identify the type of growth and any areas of concern.

2. Protection

We protect plants, windows and other vulnerable areas before starting.

3. Biocide Application

A professional biocide solution is applied to the affected areas. This kills algae, mould and organic growth at the root.

4. Dwell Time

The solution is left to work for an appropriate period, usually 10-15 minutes.

5. Gentle Rinse

Using low pressure, we rinse away the solution and dead organic matter, revealing the clean render beneath.

6. Post-Treatment (Optional)

We can apply an additional protective treatment to inhibit future growth.

Types of Render We Clean

We clean all types of external render:

• Painted render
• K-rend
• Monocouche
• Silicone render
• Acrylic render
• Traditional sand and cement
• Pebbledash
• Tyrolean

Long-Lasting Results

Our soft wash cleaning provides longer-lasting results than pressure washing alone. Because we kill the algae at the root (rather than just blasting it off), regrowth is significantly slowed. Most customers see 2-3 years between cleans, though this varies based on conditions.

Restore Your Home’s Appearance

A clean render can transform the look of your property. The difference is particularly dramatic on white or light-coloured render where staining is most visible.

Many of our customers are amazed at the difference – some say their house looks like it’s just been re-rendered!

Areas We Cover

We provide render cleaning across Cambridgeshire (Huntingdon, St Neots, Sawtry, Alconbury, Buckden, Kimbolton, Brampton, Grafham), Hertfordshire (Hertford, Stevenage) and Essex (Chelmsford). Contact us if your area isn’t listed.