Render Cleaning Bath
Green algae streaks and pollution stains ruin the look of rendered properties. Our soft wash system cleans K-Rend, silicone render and painted exterior walls without damage — restoring that fresh-finished look.
Professional Render Soft Washing
Render is one of the most common exterior finishes in Bath — and one of the most vulnerable to algae, pollution and weather staining. Pressure washing can crack and delaminate render. Our soft wash system removes staining safely, restoring your property's appearance without risk.
What Our Render Cleaning Includes
- K-Rend & Silicone Render
Low-pressure biocide application removes algae without cracking or discolouring the render finish.
- Painted Exterior Walls
Gentle cleaning that will not strip, blister or lift paint finishes from exterior walls.
- Algae & Pollution Stain Removal
Green streaks and dark pollution staining lifted by specialist biocide treatment.
- Pebbledash & Roughcast
Soft wash safe for textured exterior finishes — thoroughly cleaned without damage.
- Anti-Growth Biocide
Residual treatment prevents regrowth for 3–5 years after cleaning.
- Garden Protection
Pre-wet and rinse protocol protects plants, lawns and garden features from overspray.
Ready to restore your render? Get a free quote today.
Why Soft Wash — Not Jet Wash
High-Pressure Jet Wash
- Can crack and delaminate K-Rend and silicone render
- Forces water behind render causing damp and bulging
- Strips and blisters painted exterior finishes
- Voids manufacturer warranties on K-Rend and Weber systems
Our Soft Wash System
- Low pressure — no risk of cracking or delamination
- Biocide kills algae at the root — doesn't just surface-clean
- Safe for all render types including painted finishes
- Manufacturer-recommended — preserves your render warranty
How It Works
- 1
Free Assessment
We identify your render type and the nature of staining before recommending treatment.
- 2
Masking & Protection
Windows, doors, vents and planting protected from overspray before we start.
- 3
Soft Wash Application
Low-pressure biocide solution applied across the full elevation — no concentrated pressure on any point.
- 4
Dwell Time
The biocide works on staining for the recommended period, killing algae spores at the root.
- 5
Rinse & Reveal
Residual staining rinses away. Any remaining marks fade naturally over the following weeks.
Algae streaks ruining your kerb appeal? We can quote within 24 hours.
Before and After
Real results from soft wash render cleaning across Bath.
Bath rendered property — algae streaks and pollution removed with soft wash
Before After
K-Rend property in Bath — algae streaks removed with soft wash treatment
Before AfterMore photos from recent render jobs
6 photos 
Render Cleaning FAQ
Is soft washing safe for K-Rend and silicone render?
Yes. Soft washing is the only safe method for cleaning rendered surfaces. High-pressure washing can crack, delaminate and discolour K-Rend, silicone render and other through-colour finishes. Our low-pressure biocide treatment removes staining without any risk.
How long does render cleaning last?
A professional soft wash with biocide treatment typically keeps rendered walls clean for 3-5 years. The biocide kills algae spores at the root, preventing rapid regrowth. North-facing walls in shaded locations may need treatment slightly more often.
Can you remove green algae streaks from render?
Yes. Green algae streaks are the most common problem on rendered properties and they respond very well to soft wash treatment. The biocide kills the algae on contact and weathering removes residual staining over the following weeks.
Will the cleaning damage my garden plants?
We take precautions to protect plants, lawns and garden features. Where the biocide solution may contact planting, we pre-wet foliage and rinse afterwards. Our eco-friendly products are safe when used correctly.
Will soft wash cleaning affect my render warranty?
No. Soft wash is the manufacturer-recommended cleaning method for K-Rend, Weber and other proprietary render systems. High-pressure washing can void render warranties — our soft wash system does not.
Render Cleaning Across Bath
We cover every Bath district. Click your area for a dedicated local page.