Business Details
Professional Render Cleaning Services in Kent
Purple Rhino is a specialist exterior cleaning company with over 40 years of combined industry expertise. We focus on delivering safe, science-led solutions for render, cladding, stone, and other exterior surfaces across residential and commercial properties. Our proprietary Soft Washing Method, developed in collaboration with global training leaders SoftWash Systems, ensures thorough cleaning without damage to delicate materials. We conduct detailed porosity testing and thermal imaging surveys to tailor treatments to each property's unique requirements. Backed by a 10-year guarantee on protective coatings, our certified technicians follow strict environmental protocols to contain waste water and protect surrounding areas.With operations spanning Kent, Surrey, Essex, and the South East, we serve homeowners, property managers, and heritage sites with precision and professionalism. Our team's extensive training includes IPAF and PASMA certifications for safe access, while our continuous improvement culture ensures adherence to the highest industry standards. We maintain transparent communication throughout every project, from initial consultation to post-completion aftercare advice.
Services
Render Cleaning
Cladding Cleaning
Stone Cleaning
Soft Washing
Pressure Washing
Gutter Cleaning
Ceiling Cleaning
Window Frame Restoration
Highlights and features
- 40+ years of specialist exterior cleaning expertise
- Proprietary Soft Washing Method prevents surface damage
- 10-year guarantee on hydrophobic protective coatings
- Detailed porosity testing and thermal imaging surveys
- IPAF and PASMA certified access-trained technicians
Associations and certifications
- SoftWash Systems Certified Applicator
What people say
Excellent customer service
Professional and punctual
Flawless results achieved
Thorough and detailed work
Highly recommendable service
Services
Render Cleaning
Our specialist render cleaning service uses calibrated soft washing techniques to remove algae, mould and organic stains from all render types. We conduct porosity testing to determine optimal solution strength and application methods. Thermal imaging identifies hidden moisture issues before treatment. The process preserves surface integrity while achieving long-lasting results. Clients receive detailed written reports and fixed-price quotes with every survey.
Cladding Cleaning
We clean all cladding materials including plastic-coated steel, cedar wood, and powder-coated aluminium. Our low-pressure soft washing system removes biological growth without damaging protective coatings. For UV-damaged surfaces, we offer manual restoration treatments. Commercial clients benefit from scheduled maintenance programmes. Every project includes waste water containment to meet environmental regulations.
Stone Cleaning
Our stone cleaning service safely restores limestone, sandstone, granite and Portland stone surfaces. We use biodegradable chemical solutions and superheated water cleaning for delicate heritage buildings. Cold water pressure washing options are available for durable stone types. The process removes organic growth while preserving surface texture and colour integrity. We follow strict conservation guidelines for listed properties.
Soft Washing
Our certified soft washing system combines sodium hypochlorite, surfactants and water in precise ratios determined by surface testing. This method sanitises surfaces at microbial level, preventing rapid regrowth of organic contaminants. Battery-powered equipment ensures quiet operation and access to remote areas. The technique is ideal for roofs, patios and other delicate surfaces where high pressure could cause damage.
Pressure Washing
For durable surfaces like concrete and brick, we offer pressure washing using commercial-grade equipment. Our technicians balance water flow and pressure to achieve optimal cleaning with minimal water usage. Diesel-powered units provide mobility for large-scale projects. The service effectively removes ingrained dirt and prepares surfaces for protective treatments while adhering to safety standards.
People
Darran Smith
Managing Director
With over 40 years in exterior cleaning, Darran pioneered soft washing techniques in the UK. He trains industry professionals through the SoftWash Systems programme and maintains close partnerships with material manufacturers to develop surface-specific cleaning protocols.
Teodora Smith
Finance Director
Teodora manages financial operations and client account management. Her strategic oversight ensures competitive pricing structures while maintaining high service standards across all projects.
Chris Southworth
Render Cleaning Surveyor
As lead surveyor, Chris conducts detailed property assessments including porosity testing and thermal imaging. He prepares technical specifications and ensures all treatments comply with manufacturer guidelines and industry best practices.
Jamie Hutton
Lead Technician
Jamie supervises cleaning operations and mentors junior technicians. With IPAF and PASMA certifications, he ensures safe access solutions for complex projects while maintaining quality control standards.
Questions
Do you clean all types of render?
Yes, we clean silicone, mineral, polymer and cement-based renders using tailored soft washing solutions. Our porosity testing ensures appropriate treatment for each surface type.
Which areas do you cover?
We operate across Kent, Surrey, Essex, Sussex and South East London, with local teams available for both residential and commercial properties.
Is soft washing better than pressure washing?
Soft washing is safer for delicate surfaces as it uses lower pressure and chemical solutions to remove organic growth without damaging materials.
Do you offer guarantees?
We provide a 10-year guarantee on hydrophobic coating applications when combined with our annual maintenance programme.
How do you handle waste water?
We contain and manage all waste water to prevent environmental contamination, complying with UK water authority regulations.
Can you clean listed buildings?
Yes, our thermal imaging and superheated water cleaning methods meet conservation requirements for heritage and listed properties.
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