Trusted by Cork Locals

Patio & Decking Cleaning Cork

Power Washing for Patios and Gentle Deck Cleaning in Cork

I am Donal O'Sullivan, owner of Cleaning Doctor Cork. 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

087 258 1681 064 664 3966 WhatsApp Get a Quote

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↓ See Decking Cleaning

Areas I service: Blarney, Carrigtwohill, Cloyne, Coachford, Cobh, Glanmire, Little Island, Midleton, Rathcormac, Tower, Watergrasshill, Youghal

Donal O'Sullivan

Owner & Operator

Patio &
Deck
Expert

Rated Excellent by Cork Locals

      EXCELLENT  
   Based on 40 reviews 
    
 
 
 
   
 
 
      Posted on Google  
   
   Gearoid Terry 
 10 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Had a great experience with Donal the Cleaning doctor. He cleaned my property after an oil spill & we were very happy with the results. His crew were efficient & went above and beyond for us. Also a great communicator.
  
 
     Posted on Google  
   
   Cathriona o'Shea 
 18 days ago
 
 
 Trustindex verifies that the original source of the review is Google. If it is possible to award more than 5 stars I would. They did a top class job for us  we are very thankful and would highly recommend. Donal called out to access the job. Then  Ian and Paul power washed the whole house and footpaths.  Also the roof was treated for moss. Donal painted the chimney.  A lovely pleasant and obliging team.
  
 
     Posted on Google  
   
   Geoff Kelly 
 27 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Very happy with the service provided. Communication was excellent from the start and the staff were professional, courteous and did a brilliant job. I would highly recommend this service
  
 
     Posted on Google  
   
   Daniel Buckley 
 42 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Donal has been coming to clean outside my house for the 2nd year now, and the work is always immaculate. Very professional, reliable, and thorough every time. Highly recommend him and his team!
  
 
     Posted on Google  
   
   Frank Houttave 
 44 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Excellent service from Cleaning Doctor. Donal and his team have been very professional, reliable and easy to deal with. The quality of the cleaning has been consistently excellent, and everything was done exactly as agreed. I’m very happy with the service and would definitely recommend Cleaning Doctor to anyone looking for a reliable and professional cleaning company.
  
 
     Posted on Google  
   
   Amelia O'Reilly 
 44 days ago
 
 
 Trustindex verifies that the original source of the review is Google. We have had the pleasure of working with Donal and the team at Cleaning Dr on a number of jobs for Croninwall Properties and we have always been extremely impressed with the results.

Donal is a pleasure to deal with. He’s professional, reliable and takes the time to explain in detail what works are required and ensures everything is completed to a very high standard.

Every job Donal and his team have completed for us has turned out exceptionally well and we wouldn’t hesitate to recommend them.
  
 
     Posted on Google  
   
   Ger Sheehan 
 46 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Great service and professionalism
  
 
     Posted on Google  
   
   Dave Morrissey 
 47 days ago
 
 
 Trustindex verifies that the original source of the review is Google. 
  
 
     Posted on Facebook  
   
   Carole Conway 
 168 days ago
 
 
 recommendsTrustindex verifies that the original source of the review is Facebook. We recently had our roof, tarmac, footpaths, kerbs, and patio professionally cleaned and treated, and the results were absolutely outstanding. From start to finish, Donal and his crew were incredible to deal with.

They worked tirelessly over several days, arriving early each morning and maintaining a consistently high standard of professionalism throughout. Not only was their work ethic impressive, but they were also genuinely pleasant and easy to have around — something that really stood out.

The transformation of our outdoor areas has been remarkable. Everything looks refreshed, spotless, and well cared for. It’s clear they take great pride in what they do, and it shows in the final result.

I would highly recommend their services to anyone looking for this type of work. Wishing Donal and his team continued success — we certainly won’t be looking anywhere else in the future!
  
 
     Posted on Google  
   
   Carole O'Keeney 
 168 days ago
 
 
 Trustindex verifies that the original source of the review is Google. We recently had our roof, tarmac, footpaths, kerbs, and patio professionally cleaned and treated, and the results were absolutely outstanding. From start to finish, Donal and his crew were incredible to deal with.

They worked tirelessly over several days, arriving early each morning and maintaining a consistently high standard of professionalism throughout. Not only was their work ethic impressive, but they were also genuinely pleasant and easy to have around — something that really stood out.

The transformation of our outdoor areas has been remarkable. Everything looks refreshed, spotless, and well cared for. It’s clear they take great pride in what they do, and it shows in the final result.

I would highly recommend their services to anyone looking for this type of work. Wishing Donal and his team continued success — we certainly won’t be looking anywhere else in the future!

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 Cork.

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. In Little Island or further out, there are no surprises on the invoice.

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 Cork

We specialise in gently cleaning and restoring timber and composite decking. We remove slippery algae, moss, and grime without damaging the wood fibres. Whether your deck is in Glanmire or Carrigtwohill, it gets the same gentle clean that protects the wood.

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 Cork

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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Cork & Surrounds

Donal O'Sullivan

Contact Your Local Expert

Donal O'Sullivan

BEFORE

AFTER

Our Services

Gallery

Patio & Decking Cleaning Cork