Client: Private Residential Property
Location: Langland, Swansea
Service: Doff Steam Cleaning – Bath Stone Restoration
Overview
This stunning coastal property in Langland features traditional Bath stone, a delicate material that requires expert care and precision when cleaning. Over time, exposure to the sea air and natural elements had caused a build-up of organic growth, leaving the façade discoloured and weathered.
A DOFF test patch is a key step in our process. It allows both our team and our clients to understand exactly how the surface will respond to cleaning and what results can be achieved safely.
Why It Matters
Every stone and surface reacts differently. By carrying out a test patch first, we can fine-tune temperature, pressure, and technique to ensure the perfect balance between effective cleaning and material protection — particularly on historic or sensitive façades.
Key Benefits
- Demonstrates results upfront – See the visual improvement before committing to full cleaning.
- Protects delicate materials – Confirms the correct settings for safe and gentle cleaning.
- Manages client expectations – Provides a realistic understanding of achievable outcomes.
- Confirms suitability – Ensures the DOFF system is the right solution for the surface.
- Supports accurate pricing and planning – Helps refine project scope, timeframes, and cost.
Our Approach
Our specialist restoration team carried out a Doff steam cleaning process – a low-pressure, high-temperature cleaning system specifically designed for heritage and delicate stone surfaces. Operating at temperatures up to 150°C, the Doff system gently removes moss, algae, lichen, and surface grime without damaging the stonework or mortar joints.
Challenges
• Protecting the soft Bath stone surface from erosion or etching
• Managing run-off and ensuring surrounding landscaping was unaffected
• Working around coastal weather conditions
The Result
The Doff system successfully restored the property’s original warmth and character, revealing the natural tones of the Bath stone beneath years of surface contamination. The façade was left clean, dry, and fully preserved — without the use of harsh chemicals or abrasive methods.
Why It Matters
This project demonstrates the importance of using the right cleaning technique for sensitive materials. Bath stone requires a sympathetic approach — and the Doff system provides exactly that: effective, eco-friendly cleaning that preserves the integrity and beauty of historic surfaces.
