
Rated 4.8 stars by customers on Google
Render cleaning that brings your walls back to life.
Softwash and DOFF steam cleaning for K-Rend, pebble dash and painted render across Northern Ireland. We lift years of green algae and black staining without a drop of high pressure. Established 2003.
- Low pressure, no damage
- K-Rend and silicone safe
- Fully insured

The difference
Years of green and black, gone in a day
Most render is not stained, it is covered in living algae and lichen. Our softwash kills it at the root and rinses it away, bringing the original finish back without touching the surface underneath.
What we do
Softwash cleaning for every kind of render
From modern silicone K-Rend to old pebble dash and painted walls, we clear the growth without a drop of high pressure.
Render & Wall Softwashing
Low pressure biocidal softwashing lifts green algae, black spotting and lichen off render without touching the finish.
Learn moreDOFF Steam Cleaning
Superheated steam restores render, stone and brick with no chemicals and no high pressure. Ideal for delicate and heritage surfaces.
Learn moreK-Rend Cleaning
Specialist cleaning for silicone and scraped K-Rend that clears the staining and restores the colour without harming the finish.
Learn morePebble Dash & Harling Cleaning
Older dash and harling finishes cleaned gently, clearing decades of growth from the texture without blasting stones loose.
Learn moreHow it works
A simple, no-mess process
One visit, one clear price, and walls that stay clean for years instead of weeks.
- 01
Free survey and quote
We look at the finish, the growth and the access, then give you a clear fixed price. No pressure, no call-out fee.
- 02
Softwash treatment
A biocidal solution is applied at low pressure. It gets into the render and kills the algae, moss and lichen at the root.
- 03
The dwell and rinse
The treatment is left to work, then gently rinsed. On heavy growth we return for a second visit as the biocide keeps clearing.
- 04
Clean walls that stay clean
Because we treat the cause and not just the surface, the finish stays clear for years rather than weeks.
Rated 4.8 stars by customers on Google
What Northern Ireland homeowners say
Absolutely fantastic service. Graham and his team transformed our house render which was covered in green algae. It looks like a brand new house now. Professional, punctual and great value.
My stone walls were looking really shabby after years of weathering. Graham knew immediately what was needed and the finish was spotless.
20+ years of experience really shows. Professional team, competitive pricing and the render came up like new.
Where we work
Covering all six counties of Northern Ireland
Based in Mallusk, we travel right across Northern Ireland for render and softwash cleaning.
Common questions
Render cleaning, answered
No. Softwashing works at low pressure, closer to a garden hose than a pressure washer. The cleaning is done by a biocidal solution, not by force, so it lifts algae and staining without eroding the finish or forcing water into the render.
Because we kill the growth at the root rather than just blasting the surface, a softwash typically stays clean for three to five years. Pressure washing only clears the top layer, so it often comes back within six to twelve months.
It depends on the size of the property, the level of growth and the access, but a typical three bed semi starts from around 200 to 400 pounds. We give you a clear fixed price after a free survey, with no call-out fee.
Most homes are treated in a single day. Heavier growth sometimes needs a return visit, because the biocide keeps working and clearing for days after we apply it.
No. We arrive fully self-contained with our own water and power, so there is nothing you need to provide on the day.
It kills what is there now at the root. Render will always be exposed to the Northern Irish weather, so growth returns eventually, but far more slowly than after a pressure wash. Many customers have us back every few years to keep it fresh.
Yes, and those are the walls that need it most. North-facing gables get the least sun and stay damp longest, so they green up fastest. The softwash treats them the same way, just with the right dwell time for heavier growth.
Yes. Older dash and harling finishes clean up really well with a softwash. Because there is no high pressure involved, we clear the growth from the texture without knocking stones or chips loose.
For most Northern Irish homes, every three to five years keeps it looking right. If a wall is heavily shaded or near trees it may green up sooner, and we can advise once we have seen it.
Yes. We are Safewash certified, City and Guilds qualified, COSHH certified and carry two million pounds of public liability insurance. We have been cleaning exteriors across Northern Ireland since 2003.
Ready to see your render clean again?
Send a couple of photos and your postcode for a fast, no obligation quote. We cover every county in Northern Ireland.