Trusted by Leitrim Locals Professional Moss & Red Algae Removal in Leitrim

Moss Removal and Exterior Red Algae Treatment

I am Pat O' Rourke, owner of Cleaning Doctor Leitrim. We use specialised biocide treatments to safely remove and prevent red, green, and black algae, moss, and lichen from all exterior surfaces. If moss or algae has taken hold in Kinlough, Carrick-on-Shannon or nearby, we can quote to treat it.

Kills Roots & Spores

Long-Lasting Protection

Satisfaction Guarantee

Safe for All Surfaces

086 867 6231 049 433 9499 WhatsApp Get a Quote

Calling or WhatsApp is a faster way to reach your Cleaning Doctor

↓ See Our Process

Areas I service: Carrick-on-Shannon, Manorhamilton, Kinlough, Ballinamore, Drumshanbo, Mohill, Dromahair

Pat O' Rourke

Owner & Operator

Moss
Expert

Rated Excellent by Leitrim Locals

      
   Cleaning Doctor
   35 reviews 
  Write a review     Google    Facebook  
 
 
 
 
 
   
 
 
      Posted on Google  
   
   Juliane Thomys 
 22 November 2025
 
 
 Trustindex verifies that the original source of the review is Google. We had Pat out for a full day's work to do all paths, decking, gutters, windows and walls to give our tired looking business and home a new lease of life after 4 years of weather, moss, sticky insect nests, and general dirt on all surfaces. He worked tirelessly through the Irish weather and left the premise and footpath looking like new. Absolutely delighted with your work, I will have you back when I need you again 100%. You are a pleasure to deal with, and the quality of the work is outstanding.
  
 
     Posted on Google  
   
   Ciaran Weldon 
 17 May 2023
 
 
 Trustindex verifies that the original source of the review is Google. Excellent work carried out,would highly recommend
  
 
     Posted on Google  
   
   Jonny Doyle 
 20 April 2022
 
 
 Trustindex verifies that the original source of the review is Google. 10+ years of battling mould/moss on concrete and the house Pat came out and had the entire area cleaned and treated in 2 days. 3 months later and its still like the day he left. 100% clean and not a single sign of moss/mould. 100% recommended and will use for yearly cleaning of the area.
  
 
     Posted on Google  
   
   Gavin Thomas 
 9 January 2022
 
 
 Trustindex verifies that the original source of the review is Google. Friendly, efficient, thorough and professional. Would highly recommend ! Thanks Pat :-)
  
 
     Posted on Google  
   
   Jacko 
 8 January 2022
 
 
 Trustindex verifies that the original source of the review is Google. good service excellent job would recommended on time
  
 
     Posted on Google  
   
   Marie McDermott 
 8 January 2022
 
 
 Trustindex verifies that the original source of the review is Google. Prompt service happy with finished  results would happily use again.
  
 
     Posted on Google  
   
   marie murphy 
 2 September 2021
 
 
 Trustindex verifies that the original source of the review is Google. Great Service, very happy with it. very efficient and did more than was asked. very reasonable.
  
 
     Posted on Google  
   
   Norma Ferguson 
 27 March 2021
 
 
 Trustindex verifies that the original source of the review is Google. Lovely man! Very punctual and professional. Pat spent alot of time ensuring a meticulous job was done cleaning all our gutters, soffits, windows etc. The house looks great -  very clean and fresh and would highly recommend to sweep the moss and cobwebs away -  actually gives the house a bit of a facelift!
  
 
     Posted on Google  
   
   Marilyn Donovan 
 9 December 2020
 
 
 Trustindex verifies that the original source of the review is Google. Very good. Very reliable done the clean in a quick and professional manner would be using their services again
  
 
     Posted on Facebook  
   
   Tomas Stonemason Pavlak 
 11 November 2020
 
 
 recommendsTrustindex verifies that the original source of the review is Facebook. Patrick is gentlemen to deal with true professional very committed to his work and I be happy to recommend ⭐⭐⭐⭐⭐
  
 
 
  
 
   Verified by Trustindex  Trustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more

Award-Winning Service

See the results...

Real examples of our moss and algae removal expertise.

Our Process

The Softwash Solution

We treat the infection, not just the symptom.

1. Biocide Application

We apply a specialist biocide to the affected area. This is not just a cleaner; it's a treatment that penetrates the surface to kill the root system of moss, algae, and lichen.

Deep Penetration: Reaches the roots

Sterilisation: Kills invisible spores

2. Natural Cleansing

Once treated, the dead organic matter will weather away naturally over time with wind and rain. The surface actively resists new growth for months or even years.

Long-Term: Results improve over time

Maintenance: Fewer cleans needed

Black Spot

Removes stubborn lichen.

Red Algae

Treats unsightly wall stains.

My professional accreditations

Why Remove Moss & Algae?

The benefits of our professional biological treatments.

Prevents Damage

Moss holds water against surfaces, which can freeze and cause cracks in roof tiles, brickwork, and render.

Long Lasting Results

Our biocide treatments kill spores at the microscopic level, keeping surfaces cleaner for far longer than pressure washing alone.

Safe Soft Washing

We use low-pressure application methods that are safe for delicate surfaces like K-Rend, older roofs, and heritage stone.

Red Algae Removal

We effectively treat and remove the stubborn red streaks (Trentepohlia) often found on light-coloured walls.

Improves Safety

Algae on paths and decking is incredibly slippery. Our treatment removes this hazard, making your garden safe.

Stops Regrowth

The residual effect of our biocides continues to work after application, preventing new spores from germinating for months.

Price Promise

The price quoted includes all labour, equipment, and biocide solutions – no hidden extras. From Dromahair to the furthest corner of our area, the price we quote is the price you pay.

Fully Insured

We carry full public liability insurance, giving you complete peace of mind while we work on your property.

Before & After

See the dramatic difference our moss and algae treatment makes. Click to zoom.

BEFORE

TREATED

Roof Moss Treatment

BEFORE

CLEAN

Driveway Moss Removal

BEFORE

RESTORED

Algae Treatment

Frequently Asked Questions

Common questions about our moss and algae treatments.

Why does moss come back after pressure washing?

Pressure washing only removes the visible growth. The spores and roots remain deep in the porous surface and quickly regrow. Our biocide treatment kills the root system, ensuring a much longer-lasting clean.

Is the treatment safe for my pets?

Yes, once the treated surface is dry, it is completely safe for pets and children. We take precautions during application to keep everyone safe.

How long does the treatment take to work?

You will see immediate results as we clean the surface, but the biocide continues to work for weeks, lightening the surface and preventing regrowth. The "self-cleaning" effect on roofs can continue for months.

Will it damage my roof tiles?

No. We use a "Soft Wash" method which relies on the cleaning product rather than high pressure. This is the recommended method for cleaning roofs as it avoids damaging the delicate surface of the tiles.

How often should I get this done?

Every surface is different and requires varying levels of maintenance with location, vegetation and climate all being a contributing factor to rate of regrowth. Ask our specially trained applicators for tailored advice relating to your specific needs.

Let's Chat

Fill in the form, and I'll get back to you personally with a quote.

086 867 6231

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Leitrim & Surrounds

Pat O' Rourke

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Pat O' Rourke

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Trusted by Leitrim Locals Professional Moss & Red Algae Removal in Leitrim