Trusted by Donaghadee Locals Professional Wall Cleaning in Donaghadee

Render Cleaning and Exterior Wall Washing in Donaghadee

I am James Roberts, owner of Cleaning Doctor Donaghadee. 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

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↓ See Our Process

Areas I service: Donaghadee, Ballygowan, Comber, Donaghadee, East Belfast, Holywood, Killinchy, Millisle, Newtonards, Portaferry

James Roberts

Owner & Operator

Wall
Expert

Rated Excellent by Donaghadee Locals

       
   Cleaning Doctor
   70 reviews 
  Write a review     Google    Facebook  
 
 
 
 
 
   
 
 
      Posted on Google  
   
   Calvin Fry 
 7 September 2026
 
 
 Trustindex verifies that the original source of the review is Google. Friendly, swift and thorough
  
 
     Posted on Google  
   
   Ian Dancklefsen 
 4 September 2026
 
 
 Trustindex verifies that the original source of the review is Google. +0
James and the guy's were fantastic, great workers and they done a brilliant job very clean and tidy, I would not hesitate to recommend them.
  
 
     Posted on Google  
   
   Delukshan 
 24 August 2026
 
 
 Trustindex verifies that the original source of the review is Google. I can’t speak more highly of James, Ethan and Ivor. They worked solidly for 2 whole days to completely transform our old driveway and patio which was full of weeds creeping through the bricks and stained over years of wear and tear. They then sanded between the bricks to try and prevent the return of the weeds. In addition to this they cleaned our solar panels, treated the roof, and cleaned the external walls of the house including a large stain on the front which I was worried wouldn’t come off. The house looks brand new and several friends and family have commented particularly on the transformation of the patio and paths all around the house. The amount of work they have done in just two days is very impressive. These guys are polite, friendly, professional and just all round lovely people. Thanks fellas - will be using you again in the future for sure and recommending you to others.
  
 
     Posted on Google  
   
   Edward Andrews 
 19 August 2026
 
 
 Trustindex verifies that the original source of the review is Google. Great service, very good communication throughout, very good value. Will definitely use James and the team again.
  
 
     Posted on Google  
   
   Dave Cunningham 
 17 August 2026
 
 
 Trustindex verifies that the original source of the review is Google. I can thoroughly recommend Cleaning Doctor. We received an excellent service from start to finish — reliable, professional and extremely thorough, with real attention to detail.

Everything was carried out exactly as promised and to a very high standard. They were also a genuine pleasure to deal with: friendly, courteous, straightforward and completely dependable.

It’s refreshing to find a company that combines excellent workmanship with genuinely good customer service. We wouldn’t hesitate to use Cleaning Doctor again and would thoroughly recommend them.

Five stars from us.

David & Helen, Comber
  
 
     Posted on Google  
   
   Jack Weir 
 17 August 2026
 
 
 Trustindex verifies that the original source of the review is Google. I can totally recommend this Company for gutter cleaning after some work they carried out for me .
The owner James was excellent in every way and deserves 6 stars if that was possible!  His friendly approach, excellent work and reasonable charge are so appreciated in this cynical age.
Many thanks James
  
 
     Posted on Google  
   
   Chris W 
 15 August 2026
 
 
 Trustindex verifies that the original source of the review is Google. Got my gutters, fascia’s and soffits cleaned… looks like new PVC was put on. Also got some insight into the conditions of my gutters and downpipes. Very quick too. Highly recommend
  
 
     Posted on Google  
   
   Gary Gardiner 
 11 August 2026
 
 
 Trustindex verifies that the original source of the review is Google. Excellent service. Would highly recommend.
  
 
     Posted on Google  
   
   Michele Boal 
 4 August 2026
 
 
 Trustindex verifies that the original source of the review is Google. Just had our driveway power washed. Brilliant job, guys were thorough, cleaned up afterwards, a professional job. Pleased with the work that was completed
  
 
     Posted on Google  
   
   Robert Gamble 
 26 July 2026
 
 
 Trustindex verifies that the original source of the review is Google. James and his team claimed to take pride in their work and they really meant it. They were thorough and meticulous and wholly transformed the look of the surround of the house. Very highly recommended.
Robert Gamble
  
 
 
  
 
   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

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07917 275915

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Donaghadee & Surrounds

James Roberts

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James Roberts

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Trusted by Donaghadee Locals Professional Wall Cleaning in Donaghadee