Wall Cleaning


If your walls are looking dirty, the main reason for that could be organic growth. Mullan External Cleaning has the know-how to make your walls look like new again. Depending on the type of surface, our operators will decide whether it is necessary to power wash, softwash or steam clean your walls.

Power wash

We use cold water at high pressure. It`s very efficient at removing stains from hard surfaces.


On inspections of the walls, our operators may decide that a softwash solution may be more appropriate to remove organic growth. Our professional operators apply softwash chemicals that will ensure outstanding results every time.

1 – We spray or use a brush to apply a biocide called AlgoClear Pro*. This works immediately to remove organic growth.

2 – The surface is left to shed the dead biofilm for 4-6 weeks and your walls will look like new again

Steam clean

On inspection, if our operators decide that power washing could possibly damage a surface, steam cleaning may be the preferred method. This is where we use our power washer at low pressure and use our hot box to create steam, which is a very efficient way to clean surfaces in a hygienic way. This is a perfect way to clean red brick or limestone walls.

Whichever way we decide to clean a wall, we always apply AlgoClear Pro to help prevent organic re-growth. This will ensure that the surface will keep looking great for longer.

Red brick wall before and after steam clean

We are a fully insured company and work with the most modern equipment to clean walls on domestic and commercial properties in County Louth, Meath East, and Dublin.

We are always conscious of any plants or vegetation near where we use chemicals. We always rinse vegetation with water before and after cleaning.

* This biocide has a neutral PH, which means it does not damage the colouring agents or the surface cohesion of any hard surface. It is totally safe, and even used on children`s playgrounds.

Please check out our pricing policy.


At Mullan External Cleaning building an ongoing relationship with our customer is important.

After we clean your property we want to keep it looking great.

Treatment with the biocide Algoclear Pro at the first sign of organic material returning will ensure we keep things under control.

We will check in with you 8/12 months after completing a job but if you notice any green returning in the meantime give us a call and we will be happy to help.

Remember that regular maintenance is much more cost effective than letting your property revert to needing a full cleaning service again.


Looking to get more external cleaning services done? Here is our list of add-on services:






We are currently delivering these services in the following areas in Ireland: Dublin, County Louth & County Meath. Our covered towns and areas include Dublin City, Drogheda, Termonfeckin, Clogherhead, Dunleer, Collon, Ardee, Tullyallen, Slane, Navan, Duleek, Kentstown, Ashbourne, Dunshaughlin, Ratoath, Mornington, Bettystown, Laytown, Julianstown, Stamullen, Bellewstown, Balbriggan, Malahide, Portrane, Donabate, Howth, Swords, Skerries, Lusk, Rush.