How often should render be cleaned?

Render should be cleaned every 1-3 years depending on local conditions and exposure to weather or shade.

Can pressure washing damage render?

Yes, high-pressure washing can erode or crack render. Soft washing is a safer and more effective alternative.

Do you use chemicals to clean render?

We use environmentally safe biocides that break down organic growth without harming pets, plants, or the render surface.

Is render cleaning suitable for old buildings?

Yes. Our soft wash system is gentle and ideal for older or heritage properties with delicate finishes.

How long do results last after render cleaning?

With the right aftercare, render can stay clean for 2-3 years. Biocide treatment helps prevent regrowth of algae and mould.

Render Cleaning Explained: Restore Your Home’s Exterior Finish the Right Way

Weston Cleaner
Jul 30
2 min read

Introduction
What Is Render and Why Does It Get Dirty?
Common Issues Affecting Rendered Surfaces
The Importance of Professional Render Cleaning
Methods of Cleaning Render Safely
Why Choose Top Glass for Your Render Cleaning?

1. Introduction

If your property has a rendered exterior, you know how beautiful and modern it can look when clean. But over time, dirt, pollution, algae, and weathering can discolour and degrade render finishes. This is where professional render cleaning services become essential. Not only do they restore the look of your home, but they also preserve the integrity of the building surface.

2. What Is Render and Why Does It Get Dirty?

Render is a decorative exterior wall coating, commonly made from:

Silicone
Acrylic
Cement
Lime-based compounds

These materials are exposed to the elements, making them vulnerable to:

Moisture absorption
Algae and mould growth
Airborne pollution
UV degradation

All of which cause staining and fading over time.

Amazing Render Cleaning Service - Before & After

3. Common Issues Affecting Rendered Surfaces

Without regular maintenance, rendered surfaces can suffer from:

Green staining caused by algae and moss
Red or black marks from atmospheric pollutants and bacteria
White efflorescence (salty deposits)
Cracks or decay in untreated areas

Neglected render not only looks unsightly but can trap moisture and lead to more serious structural issues.

4. The Importance of Professional Render Cleaning

Professional render cleaning provides safe, targeted treatment without damaging the render. Benefits include:

Improved kerb appeal
Increased property value
Extended lifespan of the render
Safe removal of organic and chemical contaminants

Incorrect DIY methods using pressure washers can damage render, causing cracks, etching or surface weakening.

5. Methods of Cleaning Render Safely

At Top Glass Exterior Cleaning, we use:

Soft Washing Technology:

Low-pressure application
Biodegradable cleaning agents
Targets algae, mould, lichen, and grime

Treatment Process:

Full inspection and patch test
Pre-treatment with biocide
Soft brushing and rinse down
Post-treatment where needed

This method is gentle, safe for all render types, and delivers outstanding results without structural damage.

6. Why Choose Top Glass for Your Render Cleaning?

Top Glass Exterior Cleaning is one of North Somerset’s most trusted exterior specialists. Our render cleaning services include:

Fully trained and uniformed professionals
Insured for all property types
Specialist soft wash equipment and eco-friendly detergents
Text message reminders before every visit
Paperless invoicing for convenience
5-star reviews from homeowners across the region

We clean all render types, including:

K-Rend
Monocouche
Lime render
Sand and cement render

We service Weston-super-Mare, North Somerset, and surrounding areas, helping property owners restore and maintain their exteriors with confidence.

Trust Top Glass Exterior Cleaning to bring your home’s render back to life – safely and professionally.

📍 Serving Weston-super-Mare & North Somerset

🌐 www.topglasswindowcleaning.com

📞 Call: 07712127733