The NII Clean team
Exterior cleaning services from a leader within the industry

At NII Clean Ltd, we offer a huge range of cleaning services designed to help the outside of your property look great and stay protected. Based in Colerain, we provide our exterior cleaners cover all of Ireland.

Experts on hand to help domestic and commercial customers and those within the trade.

Nii clean branded van.png

Thanks for submitting!

NII Clean commenced trading in 2019 when Mark and Erica Donley began to see an opening for a company who could professionally clean the outside envelope of commercial and residential buildings. Our services and skills have developed quickly as we have helped many customers restore and renew the appearance of their property.

NII Clean premises

  Our commercial premises and trade counter in Coleraine

Meet the Team

Mr Mark Donley

Mr Mark Donley

Managing Director with a wealth of Experience in the high level and exterior cleaning industry.

Mr Shay Donley

Mr Shay Donley

Head of Sales, very knowledgeable and will provide you the best advice based on your needs.

Mrs Erica Donley

Mrs Erica Donley

Company Director, overseeing administration.

Mr Noah McConnell

Mr Noah McConnell

Sales assistant, very diligent and will help provide you with all the information you need prior to sale.

Team 1 

Team 2



Lead operative. Alwyn has a wealth of experience and a serious eye for detail.

Sean aka the bull

Sean AKA The Bull

Lead operative. Sean will get the work done no matter how hard it is.



Lead operative. Michael is consistent and always has high standards.



Operative. Matthew is steadily gaining experience and is a dab hand at the awkward parts.

Team 3

Team 4



Lead operative. Kyle has gained lots of soft wash experience and will solve any soft wash solution.

Portrait of young businessman smiling.jpg


Operative. Ryan is steadily gaining some great experience and developing into an excellent soft washer.

Portrait of laughing businessman.jpg


Lead operative. Rowan is only young for a team lead but is proving himself as a very capable soft washer.



Operative. Rhys is learning steadily and becoming competent at roof cleaning.

In June 2021 NII Clean acquired a high profile workshop and trade counter on the Bushmills Road in Coleraine.

These premises serve as both a base for NII Clean's services and a new show room servicing both private and trade customers where we sell, Service & Repairs. Main stockist for PdPro, Streamline Systems & CBD Pressure Washers

Two men Inside NII Clean premises

We are proud to be one of the leading exterior cleaning companies in Ireland

We work closely with individuals and other businesses within the trade to provide advice, equipment and consumables. We also offer a range of specialist exterior cleaning services for domestic and commercial properties. We specialise in roof cleaning, soft washing, pressure washing, window cleaning and cleaning at height. Why wait? Get in touch with us for a quote.

Had my roof and my neighbours roof (two semi bungalows) cleaned this week by NII Clean.

The weather was atrocious for the job on the first day with frequent sleet and rain showers and cold throughout but I have to say the lads never stopped. The job was done very professionally and unlike so many tradesmen they cleared up the debris and washed down facia and guttering etc and brushed up, leaving both houses the way they found them. A pleasant and helpful team and I would have no hesitation in recommending them to friend, family member or stranger. 

David Briggs

Facebook review

Find out more about high level cleaning at NII Clean

We are one of Ireland's premier cleaning companies and are on hand to offer information, advice and free quotes. Why wait? Get in touch today to find out just how great your property can look with the right cleaning service.