Specialized Exterior Cleaning Services Ltd - Domestic and Commercial company in Cornwall are the go to experts for all your badly stained k-rend walls, silicone render, sto render, pebbledash and coloured through render. An External Cleaning Company that understands how to affectively clean delicate surfaces with damage to surface.
Specialized Exterior Cleaning Services is a external cleaning company serving Cornwall and Devon customers in domestic and commercial markets. Render cleaning been one of our main key services we can offer additional services such as pressure washing, roof cleaning, fascia cleaning, cladding cleaning, decking cleaning and restoration and many more. We are fully trained on all aspects of Render Cleaning on commercial and domestic properties throughout Cornwall including Newquay, Falmouth, St Austell, Truro, Bodmin, Wadebridge, Cubert, St Agnes, Perranporth, Launceston, Bude, Exeter and Plymouth.
K-Rend Cleaning Cornwall
Our company Specialized Exterior Cleaning Services Ltd understands that your property is your pride and joy and is a investment that is worth looking after. We have the best knowledge and soft washing equipment to undertake any type of render cleaning job.
Do you have badly stained K-rend walls?
Our company has the answer. Soft washing and steam cleaning to get the job right.
Trentepohlia is a type of algae which produces red or orange pigment which bleeds through the render and pebbledash surface.
Render surfaces will often become discoloured with algae as a result of air pollutants and the environment. Soft washing any type of render whether it is coloured render or insulated render, care should be taken not to damage the surface. Red, green and black algae on exterior walls requires moisture to grow on the surface. Damp conditions, sheltered areas will be worst effected. Why do properties and apartment blocks suffer from red algae growth in Cornwall? The answer is the moisture in the air, from the ocean and damp conditions in the winter with air pollution. The main cause of discolouration on render surfaces is growth and biofilms which consists of lichen, red and black staining and green algae.
Pressure washing vs steam
Using the incorrect cleaning method can cause damage to your render walls using a high powered pressure washer will cause cracks on the surface. Using high pressure will force water behind the substrate and is a costly repair. Using cold water to clean render does not remove algae and bacteria spores. When using steam to clean render the process will remove an un slightly green algae, black and red staining from the rendered surface. Restoring your exterior walls to as new again. Steam cleaning can remove pollutants from the rendered walls. Getting your render cleaned properly first time will prevent further damage to the rendered surface and prevent damp in the future.
Using low pressure steam cleaning machines (5 litres to 9 litres per minute) and up to 30 bar of 50 degrees to 150 degrees steam of hot water.
Our team are here to help get your render clean. Give us a call or enquire for a free quote.
Types of render to clean are:
- Lime & Monocouche Render
- K-rend & Stone Render
- Parex & Pebbledash Render
- Sand & Cement Render
- Weber & Wetherby Render
What is Soft washing?
Soft washing is a low pressure chemical clean. Using biodegradable chemicals the soft wash cleaning process will not damage the surface which needs to clean with our discover soft wash system safely cleaning red staining, black dirt and green algae from any exterior walls. The cleaning process lasts six times longer than normal cleaning.
Our Render Cleaning Methods
Our approach to render cleaning in Cornwall and Devon follows a three step cleaning process which works. Our company will first start by cleaning the surface using a steam cleaning process which involves using pressurised steam method at 120 degrees to 150 degrees with a pressure as low as 35 bar. We can go lower or higher if needed. The steam cleaning process delivers a gentle clean which removes all algae growth. After the rendered surface is cleaned we will then soft wash the exterior wall surface which will effectively kill small spores that may remain on the surface. Finally the last process will be to steam clean the rendered walls again to give a fresh looking render again.
We use a wide range of rust removers to remove rust stains for k-rend walls.
Render Sealing Cornwall/Devon
With all modern rendering systems on the domestic and commercial properties, the product appears as a hard wearing material and sold as a maintenance free product, which is not the case.
Over time water ingress and algae will contaminate the porous render surface, which in turn you will start seeing red, black stain and green algae. With our soft wash cleaning solution we will totally clean your exterior walls. Once the exterior surfaces are cleaned we can apply a clear render sealing solution to your k-rend at a additional cost. No rain water will be able to penetrate the walls.
Render Cleaning Gallery



