Trusted by East-Belfast Locals

Patio & Decking Cleaning East Belfast

Power Washing for Patios and Gentle Deck Cleaning in East-Belfast

I am James Roberts, owner of Cleaning Doctor East-Belfast. We specialise in restoring patios, paths and garden slabs using professional pressure washing and specialist treatments for black spot and lichen removal, and in gently cleaning timber and composite decking.

Black Spot (Lichen) Removal

Anti-Slip Treatment

Cleaning Doctor Satisfaction Guarantee

Weed & Moss Control

07917 275915 WhatsApp Get a Quote

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↓ See Decking Cleaning

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

James Roberts

Owner & Operator

Patio &
Deck
Expert

Rated Excellent by East-Belfast 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 for yourself...

Watch a quick introduction to our expert patio cleaning process.

My professional accreditations

Why Choose Cleaning Doctor?

The benefits of our professional patio cleaning services in East-Belfast.

Natural Stone Experts

We understand different stone types - sandstone, limestone, granite, slate - and use appropriate pressure and treatments for each to avoid damage.

Black Spot Removal

Those stubborn black spots are actually lichen. We use specialist biocide treatments that kill the organism at the root for lasting removal.

Safety & Grip

Algae-covered patios are dangerously slippery. Our cleaning restores grip and we can apply anti-slip treatments for extra safety.

Decking Restoration

We also clean and restore wooden and composite decking, removing slippery algae and restoring the original appearance. See decking cleaning

Weed Control

We remove all weeds from joints and can apply treatments to inhibit regrowth. Re-pointing services are also available.

Long Lasting Results

Our biocide treatments continue working for weeks after cleaning, preventing rapid regrowth of algae and moss.

Price Promise

The price quoted includes all labour, materials and equipment - no hidden extras or surprise charges. Same promise whether your patio or deck is in Millisle or the far end of our area.

Fully Insured

We carry full public liability insurance for all exterior cleaning work, giving you complete peace of mind.

Our Process

Professional Patio Restoration

We follow a proven process to deliver outstanding, long-lasting results.

1. Treat & Clean

We pre-treat black spots and lichen with specialist biocides, then pressure wash to remove years of dirt, algae and moss buildup.

Pre-Treatment: Biocide application

Pressure Wash: Deep cleaning

Weed Removal: Joints cleared

2. Re-point & Seal (Optional)

For a complete restoration, we can re-point joints with sand or mortar, and apply a protective sealant to enhance appearance and protection.

Re-pointing: Stabilises slabs

Sealing: Long-term protection

Colour Enhanced

Brings out natural stone tones.

Stain Resistant

Protects against future marks.

My Results Speak for Themselves

Real examples of patios I have restored. Click any image to enlarge.

BEFORE

AFTER

Patio Restoration

BEFORE

AFTER

Black Spot Removal

BEFORE

SEALED

SmartSeal Protection

Decking Cleaning

Decking Cleaning in East Belfast

We specialise in gently cleaning and restoring timber and composite decking. We remove slippery algae, moss, and grime without damaging the wood fibres. We clean and restore timber and composite decks for homes in Portaferry, Holywood and the surrounding areas.

Removes Slippery Algae

Safe for Wood & Composite

Optional Smartseal® Sealing

Safe Restoration, Not Destruction

We use specific techniques to clean decking without stripping the wood surface.

1. Treatment & Cleaning

We start by applying a professional cleaning agent to break down algae and grime. We then use a flat-surface rotary cleaner to gently lift the dirt from the grooves.

Pre-Treatment: Loosens stubborn dirt

Rotary Clean: Consistent, streak-free finish

Gentle Pressure: Protects wood grain

2. Smartseal® Sealing & Protection

Once the deck is thoroughly cleaned, we can seal it with premium Smartseal® wood sealer. This seals the wood, enhancing the colour, repelling water and prevents green growth.

Quality protection: Weather resistance

Water Repellent: Preserves colour and integrity

Anti-Slip

Removes biological slime.

Wood Care

Nourishes dried timber.

Why Clean Your Decking?

The benefits of our professional decking restoration services.

Restore Safety

Algae and moss make wet decking incredibly slippery and dangerous. We remove this hazard to make your deck safe to walk on year-round.

Gentle Cleaning

We use rotary head cleaners and appropriate pressure settings to clean the wood deeply without "furring" or damaging the delicate fibres.

Remove Stains

Our process removes ingrained dirt, food stains, and general grime, revealing the natural wood grain beneath.

Composite Decking

We are experts in cleaning modern composite decking materials, ensuring they are cleaned safely according to manufacturer guidelines.

Smartseal® Sealing

After cleaning, we can apply premium Smartseal® wood sealer and wood protector to protect it from UV rays and rot.

Prevent Rot

Removing moss and algae allows the wood to dry out properly, preventing the damp conditions that lead to wood rot and decay.

Decking Before & After

See the dramatic difference our decking cleaning makes. Click to zoom.

BEFORE

RESTORED

Decking Restoration

BEFORE

SAFE

Safe & Clean Deck

BEFORE

CLEAN

Professional Deck Clean

Decking Questions

Common questions about our decking cleaning services.

Will pressure washing damage the wood?

It can if done incorrectly with too much pressure or the wrong nozzle. We use professional rotary flat surface cleaners and adjust the pressure to gently lift dirt without "furring" or splintering the wood.

Can you clean composite decking?

Yes, absolutely. Composite decking requires careful cleaning to avoid scratching or damaging the finish. We use soft washing techniques and appropriate cleaning solutions safe for composite materials.

Will it be slippery afterwards?

No, quite the opposite! The primary cause of slippery decking is the layer of algae and moss. Once we remove this biological growth, the natural grip of the wood or composite is restored.

Do you oil the deck as well?

Yes, we offer an optional oiling service. Once the deck is clean and fully dry (which may require a separate visit), we can apply high-quality decking oil to nourish the wood and protect it from the elements.

How often should I have my deck cleaned?

We recommend a professional clean once a year, typically in spring, to remove winter grime and algae build-up, ensuring your deck is safe and looking its best for the summer.

Do you seal the deck as well?

Yes, we offer an optional sealing service, using premium Smartseal® deck sealer. Once the deck is clean and fully dry (which may require a separate visit), we can apply it to enhance appearance, protect against weathering and green growth, and prolong the lifespan of your decking.

Frequently Asked Questions

Common questions about our patio cleaning services.

What are black spots on my patio and can you remove them?

Black spots are actually lichen - a combination of algae and fungus. They have root-like structures that penetrate into the stone. We use specialist biocide treatments that kill the organism at the root, then pressure wash to remove. This provides much longer-lasting results than just pressure washing alone.

Do you offer re-pointing services?

Yes, we can re-point your patio with kiln-dried sand or mortar after cleaning. This stabilises slabs, prevents weed regrowth and gives a neat, finished appearance. We'll advise on the best option for your specific patio type.

Do I need to be home and do you need access to an outside tap?

We do need a water supply, ideally an outside tap. If you don't have one, we can sometimes use an internal tap with a hose run through a window. You don't need to be home as long as we have access to the patio and water supply.

How long before I can walk on my patio after cleaning?

You can usually walk on the patio immediately after cleaning, though it will be wet. If we've applied a sealant, you'll need to keep off for 24-48 hours to allow it to cure properly. We'll give you specific advice based on the treatments used.

Protect the result: Driveway sealing in East-Belfast

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07917 275915

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East-Belfast & Surrounds

James Roberts

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James Roberts

BEFORE

AFTER

Our Services

Gallery

Patio & Decking Cleaning East Belfast