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

Moss Removal and Exterior Red Algae Treatment

I am Donal O'Sullivan, owner of Cleaning Doctor Kerry. 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 Knightstown, Killarney or nearby, we can quote to treat it.

Kills Roots & Spores

Long-Lasting Protection

Satisfaction Guarantee

Safe for All Surfaces

087 258 1681 064 664 3966 WhatsApp Get a Quote

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↓ See Our Process

Areas I service: Annauscaul, Ballybunion, Ballydavid, Ballyduff, Ballyferriter, Ballyheigue, Ballinskelligs, Ballylongford, Blennerville, Caherdaniel, Caherciveen, Camp, Castlecove, Castlegregory, Castleisland, Castlemaine, Currans, Derrynane, Dingle, Farranfore, Fenit, Glencar, Glenbeigh, Kells, Kenmare, Kilgarvan, Killarney, Killorglin, Knightstown, Listowel, Milltown, Portmagee, Rathmore, Sneem, Tarbert, Tralee, Valentia Island, Ventry, Waterville

Donal O'Sullivan

Owner & Operator

Moss
Expert

Rated Excellent by Kerry Locals

       
   Cleaning Doctor
   27 reviews 
  Write a review     Google    Facebook  
 
 
 
 
 
   
 
 
      Posted on Google  
   
   Claire Kelliher 
 23 May 2025
 
 
 Trustindex verifies that the original source of the review is Google. Had the gutters, drains and windows cleaned today by Killarney Cleaning Doctor. Place looks great. Fabulous job, will be accessing their services again. Claire Kelliher
  
 
     Posted on Google  
   
   MJ Garvey 
 22 May 2025
 
 
 Trustindex verifies that the original source of the review is Google. First class communication and work. Had to get work done while out of the country. Donal handled everything in what was probably a challenging job, no water to the house and the like. Delighted with the result and would highly recommend. John G
  
 
     Posted on Google  
   
   Mary B teahan 
 27 November 2024
 
 
 Trustindex verifies that the original source of the review is Google. We at Irish Drain Services in Farranfore wanted to freshen up our premises and we got Cleaning Doctor team to clean and treat the outside of our business premises and we are thrilled with the result the team were attentive and professional in what they did and were very respectful of our business customers as they completed the works and I would highly recommend Donal and the Team at Cleaning Doctor Services Kerry for all your exterior cleaning needs
  
 
     Posted on Facebook  
   
   Mary B Teahan 
 9 January 2024
 
 
 recommendsTrustindex verifies that the original source of the review is Facebook. I would highly recommend, 
Donal visited and assessed my property in Cromane and did a very professional job in cleaning and treating the roof of my property and garage and I am delighted with the results and I would have no hesitation in recommending Cleaning Doctor Carpet & Upholstery Services Kerry Professional and reliable so thank you
  
 
     Posted on Google  
   
   Kevin Devane 
 18 April 2023
 
 
 Trustindex verifies that the original source of the review is Google. +0
"I recently used The Cleaning Doctor for an exterior house cleaning and I couldn't be more impressed with their service. From the moment I reached out to them, they were professional and responsive, and provided me with a clear and detailed quote for the work.

The team that came to my home was friendly and efficient, and they did a fantastic job cleaning my siding, windows, and gutters. My house looks like new again! They even took the time to clean up after themselves and left my property looking spotless.

Overall, I highly recommend The Cleaning Doctor for anyone in need of exterior house cleaning services. Their attention to detail, excellent customer service, and affordable pricing makes them a top choice in the industry. Thank you to the team at The Cleaning Doctor for a job well done!"
  
 
     Posted on Google  
   
   Fergus McCarthy 
 14 November 2021
 
 
 Trustindex verifies that the original source of the review is Google. Great job done by the lads cleaning the gutters, fascia/soffits etc. I genuinely cannot fault any of the work. I will definitely use Cleaning Doctor service again and have no hesitation recommending Donal and team.
  
 
     Posted on Google  
   
   Karen Herlihy 
 19 July 2021
 
 
 Trustindex verifies that the original source of the review is Google. We have used the Cleaning Doctor a few times over the years and we have always had a great experience from Donal and his team. If  it was a planned deep clean of carpets and furniture before the arrival of a new addition or after redecoration or an emergency clean because a bird flew in and messed up the whole living room we always had a promt and professional experience from the cleaning Doctor. Thank you Donal and Team.
  
 
     Posted on Google  
   
   Trudy Ryan 
 13 July 2021
 
 
 Trustindex verifies that the original source of the review is Google. Very professional. Great service. Highly recommended.
  
 
     Posted on Google  
   
   Adrian O Keeffe 
 2 June 2021
 
 
 Trustindex verifies that the original source of the review is Google. I used the services of O' Sullivan Cleaning Doctor Kerry on my home in Killarney in preparation for some external painting (house, kerbs, and external walls) and was extremely impressed with the results. Not only was Donal`s team very polite, courteous, and worked very diligently to do a great job, but I really wondered whether I needed to paint at all when they were finished as they did such a great job. I whole heartedly recommend.
  
 
     Posted on Facebook  
   
   Richard Walsh 
 17 April 2021
 
 
 recommendsTrustindex verifies that the original source of the review is Facebook. A great professional service, highly recommend
  
 
 
  
 
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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. Same promise whether your home is in Ballinskelligs or the far end of our area.

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.

087 258 1681

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Kerry & Surrounds

Donal O'Sullivan

Contact Your Local Expert

Donal O'Sullivan

Our Services

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