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NII Clean HQ

Specialists in Exterior and High Level Cleaning Across Northern Ireland

Trust the experienced team at NII Clean. We are one of Ireland's leading cleaning companies that specialises in roof cleaning, gutter cleaning, soft washing, pressure washing and more.

A trusted team, we clean and treat the outside envelope of any building

At NII Clean Ltd, we do more than just clean. We believe in providing a thorough and comprehensive service that will not only leave your property looking great, but also help to protect it from the elements going forward. We are highly skilled specialists who use our wealth of knowledge to provide the right cleaning service, the right advice and always at the right price! Our services include roof cleaning, soft washing, pressure washing, window cleaning and high level cleaning. Alongside our cleaning services, we also provide products to the industry including pressure washers, window cleaning supplies, chemicals & accessories. We have a high profile workshop and trade counter in Coleraine and we cover all of Ireland. Contact us for more information or to get a free quote now.


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High level cleaning for domestic and commercial properties

Make sure your property looks fantastic and is protected from the elements with help from NII Clean. When it comes to our specialist cleaning services, we create tailored packages designed to suit your building and your budget. We offer advice about which type of cleaning would be best for the dirty area and we can combine different cleaning techniques to ensure you get the best overall results.

Moss on rooftop
Clean rooftop
Dirty commercial building exterior
Clean commercial building exterior
Dirty exterior wall
Clean exterior wall

Dirty UPVC guttering
Clean UPVC guttering
Dirty windows on french doors
Clean windows on French doors
Dirty steps leading to a house
Cleaned steps to house
NII Clean headquarters

A big thank you to Mark and his team for an excellent job clearing out our gutters, then cleaning them along with the down pipes.

They then cleaned all the soffits and PVC and finished with the windows. You have no idea how dirty the outside is until these guys get to work. Mark and his team are very polite and explain everything that they are going to do, and just get on with it. I would highly recommend their services, including the regular window cleaning.

Debbie Brackstone

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