Trusted by Cork Locals Professional Sealing Services in Cork

Driveway & Patio Sealing in Cork

I am Donal O'Sullivan, owner of Cleaning Doctor Cork. We use premium SmartSeal products to seal and protect block paving, pattern imprinted concrete, tarmac, and natural stone, locking in that "just cleaned" look. We seal front drives and back patios all around Rathcormac and Glanmire.

Prevents Weathering & Oil Stains

Stabilises Jointing Sand

Satisfaction Guarantee

UV Stable - Won't Yellow

Weather Dependent - Different surfaces require different drying times

087 258 1681 064 664 3966 WhatsApp Get a Quote

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

Donal O'Sullivan

Owner & Operator

Sealing
Expert

Rated Excellent by Cork Locals

      EXCELLENT  
   Based on 40 reviews 
    
 
 
 
   
 
 
      Posted on Google  
   
   Gearoid Terry 
 8 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 
 16 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 
 25 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 
 40 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 
 42 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 
 42 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 
 44 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Great service and professionalism
  
 
     Posted on Google  
   
   Dave Morrissey 
 45 days ago
 
 
 Trustindex verifies that the original source of the review is Google. 
  
 
     Posted on Facebook  
   
   Carole Conway 
 166 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 
 166 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...

Real examples of our sealing expertise.

My professional accreditations

Why Seal Your Driveway?

The benefits of our professional sealing services.

Delays Weed Regrowth

Sealing hardens the jointing sand, which prolongs the return of weed regrowth.

Prevents Oil Stains

Sealed surfaces repel oil, grease, and fuel spills, making them easy to wipe away before they stain the paving.

Enhances Colour

Sealers can restore the original colour of faded paving, giving it a "wet look" or a natural matte finish as desired.

Stabilises Blocks

By binding the sand, the sealant prevents blocks from wobbling or sinking, maintaining the structural integrity of your drive.

UV Protection

Our SmartSeal products protect against UV rays, preventing further colour loss and fading from the sun.

Restores Faded Colour

Brings tarmac back to a rich, deep black finish, reversing UV fading and years of weathering.

Prevents Surface Cracking

Seals hairline cracks and protects against further damage from frost, water, and heavy use.

Easier Maintenance

A sealed surface is much easier to sweep and clean, as dirt sits on top of the sealant rather than grinding into the stone.

Price Promise

The price quoted includes all labour, equipment, and sealing materials – no hidden extras. In Tower or further out, there are no surprises on the invoice.

Fully Insured

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

Our Process

Clean, Sand & Seal

A comprehensive two-stage restoration for your paving. Sealing is weather dependent — the paving has to be completely dry before any sealer can go down.

Sweeping kiln-dried sand into block paving joints

1. Deep Clean & Re-Sand

First, we pressure wash the area to remove all dirt, moss, and old sand. The paving then needs to dry out completely before we sweep in fresh, sterile kiln-dried sand to refill the joints. Different surfaces require different drying times. If your patio only needs the clean for now, see patio cleaning in Cork.

Deep Clean: Removes all contaminants

Re-Sanding: Stabilises the paving

Drying: Different surfaces require different drying times

2. Sealant Application

We apply two coats of high-quality SmartSeal acrylic or solvent-based sealer. This penetrates the sand, hardening it like mortar, and coats the surface. We only do this on a dry day with a dry forecast ahead of it, so the sealer can cure properly.

Two Coats: For maximum durability

Hardens Sand: Prolongs the return of weed regrowth

Dry Weather: Needs 24 dry hours

Waterproof

Beads water on surface.

Oil Resistant

Protects against leaks.

Before & After

See the dramatic difference our sealing service makes. Click to zoom.

BEFORE

SEALED

Block Paving Sealing

BEFORE

PROTECTED

Driveway Restoration

BEFORE

RESTORED

Complete Transformation

Frequently Asked Questions

Common questions about our sealing services.

How soon can you seal my driveway or patio?

That comes down to the weather rather than how busy we are. Once the paving has been cleaned it has to dry the whole way through before any sealer can go down. Different surfaces require different drying times, and cold, damp or shaded spots take longer again, so we'll let you know what to expect for yours. If it rains while it's drying, the clock starts again. That's why sealing is booked as two visits, and why we can't commit to a firm sealing date until we can see the forecast.

Why can't you just seal it while it's still damp?

Because it would ruin the finish. The sealer forms a film over the surface, so any moisture still sitting in the paving or the jointing sand gets sealed in underneath. It shows up as a cloudy, milky-white bloom and the sealer lifts and peels within months. Stripping and redoing a failed seal costs far more than waiting a few extra days, so we'll always hold off rather than seal in the wrong conditions.

What happens if it rains after you've sealed?

We only seal when the forecast gives us a clear dry window, because the sealer needs roughly 24 dry hours to cure. Once it has cured, rain is no problem at all — that's exactly what the sealer is there for. If the forecast changes before we start, we'll ring you and move the date rather than take the risk.

Can you seal at any time of year?

In practice, sealing works best from late spring through to early autumn, when we get longer dry spells and warmer surface temperatures. Through the winter months the paving rarely dries out enough between showers, and low temperatures slow the cure right down. We're happy to clean and quote at any time of year, but we'll be straight with you about when the sealing itself is realistically going to happen.

How long do I have to stay off the drive?

For pedestrian traffic, usually 3-4 hours. For vehicles, we recommend keeping them off for 24 hours to allow the sealant to fully cure and harden.

Will it make the surface slippery?

No. We can add an anti-slip additive to the final coat of sealant. This microscopic grit provides grip without changing the look of the surface, ensuring safety in wet conditions.

Does it stop weeds completely?

No, but it prolongs the return of weed regrowth. The sealant hardens the sand in the joints, making it harder for weeds to take root. Any surface weeds that do appear will be shallow-rooted and easy to remove.

Can you seal tarmac driveways?

Yes. Tarmac has different problems to block paving. Over time, UV and weathering fade it to a dull grey, and frost and water open up hairline cracks across the surface. After a thorough clean, we apply a specialist tarmac restoration sealer that brings the drive back to a rich, deep black and seals those hairline cracks, protecting it against further damage from frost, water and heavy use. Deeper cracks, potholes or broken edges need repairing before sealing, and we'll point those out when we quote.

Can you seal concrete driveways?

Yes. We use specific concrete sealers for pattern imprinted drives. Each surface requires a different product for best results, so tarmac, concrete and block paving are each sealed with their own sealer.

How often does it need re-doing?

A good quality acrylic sealer typically lasts 3-5 years depending on traffic and weather exposure. A simple top-up coat can then be applied to restore the protection.

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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Donal O'Sullivan

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Donal O'Sullivan

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Trusted by Cork Locals Professional Sealing Services in Cork