Trusted by Coleraine Locals Professional Wall Cleaning in Coleraine

Render Cleaning and Exterior Wall Washing in Coleraine

I am Jimmy Archibald, owner of Cleaning Doctor Coleraine. We use specialist soft wash methods to safely remove algae, moss, and dirt from external walls without damaging render or mortar.

Soft Wash Method

K-Rend Safe

Removes Algae & Moss

All Wall Types

07716 300002 028 2751 2074 WhatsApp Get a Quote

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↓ See Our Process

Areas I service: Ballymoney, Bushmills, Coleraine, Limavady, Maghera, Magherafelt, Portrush, Portstewart

Jimmy Archibald

Owner & Operator

Wall
Expert

Rated Excellent by Coleraine Locals

      
   Cleaning Doctor
   41 reviews 
  Write a review     Google    Facebook  
 
 
 
 
 
   
 
 
      Posted on Google  
   
   Yvonne Simpson 
 20 February 2026
 
 
 Trustindex verifies that the original source of the review is Google. Jimmy & Logan did an excellent  job removing  the Moss from my Yard also cleaning  the Patio  , tiles & garden  Pots ..highly  recommend  .Thank you
  
 
     Posted on Google  
   
   trad dervish 
 28 December 2025
 
 
 Trustindex verifies that the original source of the review is Google. Top man . First class job . Very pleasant. Highly recommend.
  
 
     Posted on Google  
   
   Grace Phillips 
 28 December 2025
 
 
 Trustindex verifies that the original source of the review is Google. Excellent job. So clean and tidy. Would highly recommend  to everyone
  
 
     Posted on Facebook  
   
   George Mc Mullan 
 15 May 2025
 
 
 recommendsTrustindex verifies that the original source of the review is Facebook. John did our hall stairs and landing today first class job very pleased
  
 
     Posted on Google  
   
   Michael Henry 
 1 October 2022
 
 
 Trustindex verifies that the original source of the review is Google. First class service and great value for money. Will definitely be using again. Thanks John.
  
 
     Posted on Google  
   
   Anne McAlary 
 26 August 2022
 
 
 Trustindex verifies that the original source of the review is Google. Such an excellent job . Delighted with the sofa and it looks like new again . Many thanks John . A great job 👏🏻
  
 
     Posted on Google  
   
   Pat Watson 
 19 February 2022
 
 
 Trustindex verifies that the original source of the review is Google. John arrived on time. Cleaned 2 couches, carpet and rug. He did a thorough job,  very professionally. Happy to use him again and to recommend to others.
  
 
     Posted on Facebook  
   
   Rosemary Hogg 
 31 January 2022
 
 
 recommendsTrustindex verifies that the original source of the review is Facebook. Prompt efficient service. My carpet and leather suite came up like new.  I would high recommend.
  
 
     Posted on Google  
   
   Chris Murray 
 17 January 2022
 
 
 Trustindex verifies that the original source of the review is Google. Excellent service. Finish quality perfect and reasonably priced
  
 
     Posted on Google  
   
   Robin Brown 
 29 October 2021
 
 
 Trustindex verifies that the original source of the review is Google. On time, very professional and a great job. Would have no problem recommending.
  
 
 
  
 
   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 wall cleaning expertise.

Our Process

Safe & Effective Soft Washing

We use a gentle chemical treatment process to clean your walls without high pressure.

1. Soft Wash Treatment

We apply a specialist biocide cleaning solution to the wall using low pressure. This breaks down the algae and dirt at a microscopic level.

Gentle Application: No damage to render

Kills Roots: Prevents rapid regrowth

Safe: Approved biodegradable chemicals

2. Controlled Rinse

After the treatment has dwelled, we gently rinse the surface with low pressure steam or water to reveal the clean, original finish.

Low Pressure: Protects mortar & pointing

Bright Finish: Instantly visible results

K-Rend Safe

Recommended cleaning method.

Long Lasting

Stays clean for years.

My professional accreditations

Why Choose Us For Walls?

The benefits of our professional external wall cleaning services.

Remove Algae

We specialise in removing red, green, and black algae that stains render and brickwork, restoring the original colour.

Safe Soft Washing

We use low-pressure "Soft Wash" technology to clean delicate surfaces like K-Rend without causing damage.

Prevent Damage

Moss and algae hold moisture against the wall, which can lead to damp penetration and frost damage if left untreated.

All Surfaces

We clean all exterior surfaces including render, pebble dash, brick, natural stone, concrete, and cladding.

Long Lasting

Our biocide treatments kill the root of the algae, meaning your walls stay cleaner for much longer than pressure washing alone.

Improve Kerb Appeal

Clean walls instantly brighten up your property, making it look well-maintained and increasing its value.

Price Promise

The price quoted includes all labour, equipment, and cleaning solutions – no hidden extras.

Fully Insured

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

Dealing with stubborn moss? See our dedicated treatment →

Before & After

Real examples of walls we have cleaned. Click any image to enlarge.

BEFORE

AFTER

Wall Algae Removal

BEFORE

CLEAN

Wall Cleaning

BEFORE

RESTORED

Render Restoration

Frequently Asked Questions

Common questions about our wall cleaning services.

Will cleaning damage my render?

No. We use a specialist "Soft Wash" method for rendered walls. This relies on cleaning agents rather than high pressure to remove dirt and algae, ensuring the delicate surface of the render is not blasted away or damaged.

Does it remove red streaks (algae)?

Yes, absolutely. The red staining often seen on light-coloured walls is Trentepohlia algae. Our treatment is specifically formulated to kill this algae and remove the red staining, restoring the wall's original bright colour.

How long will the results last?

Because our treatment kills the root of the biological growth, the results last much longer than simple pressure washing—typically 2-5 years depending on the location and environmental factors.

Is the chemical safe for my plants?

We take great care to protect your garden. We pre-wet and rinse down all nearby plants to dilute any overspray, and can cover sensitive areas. Once dry, the treated surface is harmless to pets and plants.

Can you clean brick and stone?

Yes, we clean all types of masonry including brick, natural stone, and concrete. We adjust our method to suit the material, ensuring a deep clean that removes carbon deposits, moss, and algae without damaging the pointing.

Let's Chat

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

07716 300002

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Coleraine & Surrounds

Jimmy Archibald

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Jimmy Archibald

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Trusted by Coleraine Locals Professional Wall Cleaning in Coleraine