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Not all algae on render is green, and the colours a wall produces say something genuinely useful about what is growing on it. The familiar green film is chlorophyll-bearing algae, and it dominates on damp shaded elevations. Where light levels are higher, some species produce protective pigments that mask the green entirely, and the result is a wall reading orange, rust, pink or brownish red rather than green. Those growths are frequently mistaken for staining, rust from a fixing, or a fault in the render itself, and they are none of those things. Lichen produces a wider palette still. Colonies appear grey, white, sage, mustard yellow, orange and occasionally almost black, depending on species and on what the surface offers them. The bright yellow-orange discs common on sunny elevations and copings are lichen rather than any kind of staining. Black is usually a mixture of several things, combining dead algal cells, dark-pigmented fungal growth and bonded atmospheric material. The practical significance is twofold. First, colour affects diagnosis, and a wall dismissed as permanently stained may simply be colonised and entirely treatable. Second, colour affects expectation, since heavily pigmented growths can leave a faint tint in an absorbent surface even after the organism itself is dead. All of it responds to the same biocidal soft wash, applied at a dilution and a dwell matched to the coating and the growth present. Properties in Bottisham showing unusual colouring are assessed at survey to establish what is actually there, since the answer determines both the method and what can honestly be promised.
Getting the diagnosis right before applying anything is a large part of doing this work properly, and it is not always as obvious as it looks from the pavement. A green wall is usually algae, and usually entirely straightforward. But orange marking might be pigmented algae, lichen, rust from a fixing or iron staining from the substrate, and only one of those responds to treatment. A dark patch might be growth, water ingress, a repair in a different mix or a previously overpainted section. A white bloom might be lichen or efflorescence, and no biocide affects the latter at all. So the survey looks closely at each area rather than generally at the building. Growth is examined at close range on each elevation, the surface is touched and tested where it is safe to do so, walls are tapped for hollow sections, and the pattern of marking is compared against where water actually travels on the building. Where something genuinely cannot be identified with confidence, that is said rather than guessed, and a trial area is treated to see how the surface responds before a full elevation is committed to. The consequence of guessing is a customer paying for treatment that was never going to work on the thing they were worried about, and that is a good deal worse than an honest uncertainty. Householders in Bottisham receive a written survey record naming what was found on each elevation, what will respond to treatment, what will not, and what remains uncertain until a trial has been carried out.
Different growths cost different amounts to treat, and understanding which of them is on a wall explains a good deal about the shape of a quotation. Algae is comfortably the cheapest of them. A green film, even across a whole property, needs a modest dilution, a single pass and a straightforward dwell. Walls carrying only algae sit at the lower end of every band and very rarely need a second visit at all. Black staining costs rather more, because the living component clears readily while the bonded material requires wetting, dwell and deliberate rinsing rather than chemistry alone. It also improves rather than disappearing, which is priced honestly rather than optimistically. Lichen is comfortably the most expensive of the three to deal with. Colonies are anchored into the coating, they need generous coverage and extended dwell to penetrate, and mature growth frequently requires a second application some weeks later at a further £120 to £250. Moss sits somewhere between the two extremes. It holds solution well and dies readily, but the depth of a cushion means generous application and extended dwell, and the areas carrying it usually need the most protection because they sit at ground level among planting. Most properties carry a mixture of all four, which is why quotations tend to land mid-band: £280 to £430 terraced, £400 to £620 semi-detached and £550 to £880 detached, at £4 to £8 per square metre. Properties in Bottisham are graded for growth type as well as severity, and the written quotation states what was found so the figure is explicable.
Remove years of dirt, grime, algae and staining for a cleaner, fresher finish.
Professional techniques designed to protect your surfaces while delivering outstanding results.
Keep your property looking its best with regular render cleaning.
Keep your property looking clean, fresh and well maintained with professional render cleaning in Bottisham. Over time, rendered walls can become affected by algae, moss, dirt, staining and other environmental contaminants, leaving the exterior looking tired and discoloured. Our professional render cleaning service is designed to safely restore the appearance of rendered surfaces without causing unnecessary damage.
A considerable amount of commercial render cleaning is instructed by facilities management companies and contract cleaners on behalf of their own clients, and that work runs to different requirements than a direct instruction does. Documentation comes first here and is scrutinised properly. Risk assessments, method statements, COSHH data sheets, insurance certification and operative qualifications are all supplied before mobilisation, frequently loaded onto a client’s own compliance system, and kept current for the duration of an agreement. Pricing is structured for a contractor rather than for a building owner. Quotations are broken down by building and elevation so they can be presented onward, held for a stated period so they can be included in a tender, and issued in a form that supports a purchase order process. Reporting matters a good deal more than it does on direct work. Photographs before and after each elevation, a completion record, and confirmation of what was treated and what was excluded are all provided as standard, because an FM client is accountable to somebody else and needs evidence rather than assurance. Scheduling is agreed through the contractor and then adhered to precisely, since a delay affects their programme rather than only ours, and attendance is coordinated around whatever other trades happen to be on site. Pro Clean Xtreme works to trade terms on agreed accounts, with fixed prices, no deposits and invoicing to whatever cycle has been arranged. Facilities managers and contract cleaning companies responsible for premises in Bottisham can arrange surveys across multiple sites and receive a written schedule with fixed prices per building.
Founded in 2016 by Karl Crofts, Pro Clean Xtreme has grown from a dedicated one-man operation into a trusted family-run team. Joined by his wife Lindsay and family members Callum and Rachel, we pride ourselves on delivering professional, safety-first cleaning. By combining honest communication with continuous investment in the industry’s best low-pressure steam equipment and safe access systems, we deliver exceptional results for every residential, commercial, and industrial client.
Founded by Karl Crofts, delivering reliable local service for over a decade.
Our own tracked cherry picker provides safe access without walking on tiles.
Safe low-pressure steam cleaning, softwashing, and specialist pre-solar preparation.
Ten years of trusted, family-run service delivering high-quality workmanship on every project.
Whether your render has developed green algae, dark staining or general weathering, professional cleaning can make a significant difference to the appearance of your property. We take care to assess the condition and type of render before cleaning, helping us select an appropriate approach for the surface. This allows us to achieve thorough results while minimising the risk of damage to delicate or textured finishes.
We take immense pride in the reputation we have built across Cambridgeshire and the surrounding areas since 2016. As a family-run business, delivering exceptional customer service, honest communication, and high-quality workmanship is at the heart of everything we do. Read through our latest Google reviews to see why residential homeowners, housing associations, and commercial contractors consistently trust Pro Clean Xtreme to safely protect and restore their properties.
There is no fixed schedule as it depends on the property’s location, exposure and surrounding environment. Render that is shaded or surrounded by trees may require cleaning more frequently.
Yes. Professional render cleaning can remove algae and other organic growth that has developed across the surface.
The correct cleaning method should be selected based on the type and condition of the render. We assess the surface before cleaning to help ensure an appropriate approach is used.
Professional cleaning can significantly improve render affected by dirt, algae, organic growth and black staining. The final result can depend on the severity and age of the staining.
Yes. Render cleaning can be carried out on many types of residential and commercial properties, helping maintain a clean and professional exterior.
Getting an initial estimate for your property is completely effortless. Simply fill out the form below with your full property address, and our family-run team will utilise Google Earth before providing a quotation. Whether you are a homeowner, a housing association, or an installation company preparing a site, let us know your specific requirements and we will get back to you promptly with an initial assessment.
