If your property in Sefton has discoloured render, algae streaks, or black mould patches creeping across your walls, you’re not alone. This is one of the most common external problems property owners in the area face — especially with white or light-coloured render.
At Fresh Exteriors, we’re local specialists in render cleaning services in Sefton — and in this FAQ-driven guide, we’re answering the most important questions you need to know before booking a clean.
This is caused by organic contamination — usually algae, moss, lichen or mould — which thrives in our damp climate. Wind carries spores that settle on the render surface, especially in shaded areas or north-facing walls. Over time, this biofilm spreads and causes unsightly stains.
Certain renders like K-Rend, Weber and monocouche are especially vulnerable due to their porous finish.
Not in the way you might think. Standard high-pressure washing will likely damage your render by:
That’s why professional soft washing is the recommended method. It uses carefully controlled low pressure and specialised chemical cleaning agents that dissolve algae and staining without damage.
Our render cleaning process in Sefton is designed to restore without risk. Here’s how we do it:
This stage is critical for long-lasting results.
We clean every major render type used across Sefton properties:
If you’re not sure which type you have, that’s okay. We’ll inspect it for you during our initial survey.
Here’s what our render cleaning service will do for your Sefton property:
It’s not just cosmetic — clean render reflects better heat and is less likely to suffer long-term weathering damage.
With a proper biocide treatment, you can expect results to last 12 to 24 months depending on weather exposure, location, and the surrounding environment (trees, damp walls, etc.).
Some other companies skip this step — and the algae returns within months. We do it right, because long-lasting results matter.
In most cases, no scaffolding is required. We use telescopic water-fed poles and access equipment suited for up to 3-storey buildings.
If your property has awkward access, high gables, or safety concerns, we’ll advise on access needs during the free survey. We’re experienced in working safely at height and are fully insured.
Yes — we apply all cleaning products safely and in accordance with manufacturer guidelines. We’ll always:
While we do use bleach-based solutions on some jobs (when appropriate), we do so responsibly, and they are industry-standard and surface-safe.
Absolutely. We regularly work on:
If the building has render — we can clean it. We’re also flexible on scheduling, access and safety documentation (RAMS available on request).
| Task | Render Cleaning | Repainting |
|---|---|---|
| Cost | Low | High |
| Duration | 1 day | Several days |
| Risk | None | Potential damage if prep is poor |
| Longevity | 12–24 months | 3–6 years (but only cosmetic) |
| Eco Impact | Low (less waste) | Higher (materials, waste) |
If your render isn’t flaking or damaged, cleaning is nearly always the better choice. It restores, refreshes, and protects — without major cost or disruption.
We offer render cleaning throughout the entire borough of Sefton:
Whether it’s a quiet residential street or a busy commercial estate — we’ll get your render looking like new again.
Because we:
We’re not a jack-of-all-trades. Exterior cleaning is what we do — all day, every day.
Call Fresh Exteriors today to arrange your free quote and property survey. We’ll assess your render, explain your options, and show you how clean it can really look.
📞 Call: 0151 317 3885
💬 WhatsApp: 07932 972 485
📩 Or fill out our contact form — we’ll respond quickly.
Let’s give your walls the professional clean they deserve.
We provide top-quality pressure washing and soft washing services for both residential and commercial properties.
The exterior of your property speaks volumes about you. As a homeowner, you want your house to be a place of pride, a space that always looks its best.
For business owners, keeping a clean and well-maintained environment is crucial—not just for your employees, but also for making a positive impression on your customers.
Our residential services include thorough cleaning for driveways, patios, patio repointing, sealing and recoloring, render, roofs, fascias, gutters, and conservatories.
On the commercial side, we offer builders cleans, render and cladding cleaning, gutter cleaning, graffiti removal, car park maintenance, and forecourt cleaning.
Using advanced high-pressure cleaning equipment and specialized soft washing tools, along with powerful yet safe chemical treatments, we effectively eliminate everyday dirt and stubborn organic stains like grime, moss, algae, and lichen from all types of exterior surfaces.








Widnes Office – 134 Widnes Rd, Cheshire, Widnes WA8 6AX
Liverpool Office – 29 Newbury Way, Liverpool, L12 9JZ
Landline – 0151 317 3885
Widnes (Christopher) – 07932 972 485
Liveprool (Michael) – 07359 095 462
Driveway Cleaning
Sealing & Recolouring
Patio Repointing
Gutter Cleaning
Render Cleaning
Roof Cleaning
Car Park Cleaning
Roof Cleaning
Forecourt Cleaning
After Build Clean-Up
Cladding Cleaning
Commercial Gutter Cleaning
Graffiti Removal
Exterior Building Cleaning
Warehouse Cleaning
Factory Cleaning
Commercial Pressure Washing
We cover all areas in Merseyside, including – Liverpool, Aigburth, Childwall, Crosby, Ellesmere Port, Formby, Frodsham, Garston, Gateacre, Grassendale, Halewood, Hightown, Huyton, Kirkby, Litherland, Maghull, Mossley Hill, Sefton, Southport, Wavertree, Widnes, Wirral, Woolton
© 2025 Fresh Exteriors Property Care Ltd (16231557)