Render Cleaning in Kilkenny
Green and black staining on a rendered wall isn’t dirt — it’s algae and lichen feeding on moisture in the surface. Pressure-washing it makes it look worse: it opens up the render, drives water in and the staining returns within a year.
We use a soft-wash method instead — gentle, effective, and built to last 2 to 4 years before any noticeable re-growth. Render cleans across Kilkenny typically run from €250 to €700. Free quote within 24 hours.
- ✓Fully insured local team
- ✓Free no-obligation quotes
- ✓Serving all of County Kilkenny
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What's included
- ✓A walk-around survey to check the render type, condition and any cracks before we start
- ✓Protection of planting, windows and doors
- ✓Low-pressure soft-wash application of a professional biocide
- ✓Gentle rinse where needed — never high-pressure on render
- ✓Optional follow-up biocide application 12–24 months later
- ✓Fully insured operator — public liability on every job
Surfaces we clean
- ✓Pebbledash and dry-dash render (the classic textured Irish finish)
- ✓Painted render (smooth or sand-textured)
- ✓Self-coloured silicone render and acrylic render
- ✓K-Rend and similar through-coloured systems
- ✓Wet-dash and roughcast
Render Cleaning prices in Kilkenny
Final price depends on wall area, height, access and how badly affected the render is. Typical ranges in Kilkenny:
- €Single gable wall: €200–€350
- €Full house exterior render clean: €450–€700
- €Larger properties or limited access: quoted on site
Final quote depends on site, condition and access. Free, no-obligation quote within 24 hours.
Why pressure-washing render is a bad idea
Render is a porous, relatively soft surface. High-pressure water blasts off the sand finish, opens up cracks and drives moisture deep into the wall. The wall looks clean for a couple of weeks, then comes back greener than before because the spores have been forced further into the surface, not killed.
Soft washing kills the algae and lichen at the spore level, leaves the render intact, and keeps working for weeks after we leave.
How long does it take?
Most domestic render jobs are completed in a single day. The biocide continues to work in the render over the following 4 to 8 weeks — the wall keeps getting cleaner after we’ve finished.
Will the staining come back?
Eventually — moss and algae are part of the Irish climate. A professional treatment typically gives 2 to 4 years before any noticeable re-growth. A small maintenance application every couple of years extends that significantly.
Areas we cover
All of County Kilkenny — Kilkenny City, Loughboy, Ferrybank, Callan, Thomastown, Castlecomer, Graiguenamanagh, Bennettsbridge, Freshford, Gowran, Mooncoin, Piltown and surrounding areas.
Frequently asked questions
Will it remove the staining straight away?
Some of it, yes — but the biocide does most of the work over the 4–8 weeks after we leave. The wall keeps clearing as rain washes the dead algae out of the surface.
Will it harm my windows or window frames?
No. We rinse glass and frames as we go, and the working concentration is safe on UPVC, aluminium and timber frames.
Can you clean K-Rend or silicone render without discolouring it?
Yes — soft washing is the only safe method for through-coloured renders like K-Rend. Pressure washing absolutely will discolour them.
Do you do the gutters and fascias at the same time?
Yes, we can add fascia and soffit cleaning to the same visit. We’ll quote them separately so you can decide.
Will it harm the lawn or shrubs?
No — we protect planting before we start and rinse any drift immediately. The biocide is used at safe working concentration.
Ready for a clean finish?
Get a free, no-obligation quote — usually within 24 hours.