Wales
Render Cleaning in South Glamorgan
Soft-wash render cleaning and biocide treatment that removes algae without damaging the finish.
Our render cleaning work in South Glamorgan starts with a free survey, because guessing at a render specification is how jobs go wrong.
South Glamorgan is characterised by Victorian and Edwardian terraces, Cardiff suburban housing and coastal properties, with solid-wall terrace damp and coastal weathering at Barry and Penarth the recurring theme on the properties we survey. Local conditions bring wet with coastal exposure along the Severn estuary, and that has a direct bearing on which systems are worth specifying.
Local factor. Cardiff's victorian terraces are largely solid-wall, and external insulation with a breathable render is the upgrade that suits them best.
Is render cleaning right for a South Glamorgan property?
Choose soft-wash cleaning to restore a discoloured render without the substrate damage that pressure washing causes on thin-coat systems.
That decision gets made at the survey, not on the phone. We will tell you plainly if a different system would serve the building better — including when a cheaper one would.
Guide price and specification
| Guide price | £12–£26 per m² |
|---|---|
| Applied thickness | Surface treatment |
| Curing / drying | Same day |
| Guarantee | 12 month treatment |
| Coverage | All of South Glamorgan — 10 towns and cities |
Indicative only, excluding scaffold, stripping and repairs. Try the guide-price tool for a range based on your property.
What is included
- Low-pressure soft wash
- Biocide treatment kills spores
- Safe on silicone and acrylic
- No high-pressure damage
- Removes algae, lichen and moss
- Treats staining and streaking
- Gutter and downpipe check
- Restores original colour
Render Cleaning across South Glamorgan
Render Cleaning in South Glamorgan
Tell us about the property and we will call you back to arrange a survey.
Other services in South Glamorgan
What happens next
Four steps from enquiry to finished wall
Free survey
We visit, test the substrate, measure up and identify what caused any existing failure.
Written quote
An itemised fixed price with the system named, materials specified and scaffold included.
Booked in
An agreed start date, scaffold arranged, and a clear run of days set aside for your job.
Finished and guaranteed
Site cleared, scaffold struck, guarantee documents and system warranty issued.
FAQs
Render Cleaning in South Glamorgan — questions
Will you need scaffolding?
For anything above single storey, yes — it is safer and produces a better finish than working off ladders or towers. Scaffold is included and itemised in the quote.
How long before I can paint new render?
Through-coloured systems need no painting at all. Sand and cement should cure for around 28 days before masonry paint goes anywhere near it.
Do you take a deposit?
For most domestic jobs we take a deposit to cover materials and scaffold, with the balance on completion. Terms are set out clearly in the written quote.
Can you match my existing render?
Usually, yes. We colour and texture match as closely as we can, though weathered render never matches a fresh batch exactly — we will be honest about how visible a patch will be.
How long does render cleaning last?
Typically two to four years before noticeable regrowth, depending on shading, aspect and nearby vegetation. Annual maintenance treatments extend that considerably.
Why is only one wall green?
North-facing and shaded elevations stay damp far longer, so algae establishes there first. Overhanging trees and leaking gutters accelerate it.
Render Cleaning quotes across South Glamorgan
Free survey, honest advice on whether this is the right system, and a fixed written price.