Brilliant service and so helpful for our work at hand.

I would 100% recommend N.I. Clean, had the guys out cleaned the roof & the whole outside of the house & oh my word what a difference, the guys are great workers and took real pride in their work, we're so happy with the results we will definitely be getting them out again.... More

I would 100% recommend N.I. Clean, had the guys out cleaned the roof & the whole outside of the house & oh my word what a difference, the guys are great workers and took real pride in their work, we're so happy with the results we will definitely be getting them out again. Less

Nii Clean sprayed my roof and cleaned all the pvc, windows, guttering, fascia etc. The two young guys did a really good job , and showed me around the finished work to make sure I was happy with it. This is the second time they have cleaned my house. Would thoroughly recommend. Thanks!... More

Nii Clean sprayed my roof and cleaned all the pvc, windows, guttering, fascia etc. The two young guys did a really good job , and showed me around the finished work to make sure I was happy with it. This is the second time they have cleaned my house. Would thoroughly recommend. Thanks! Less

Excellent job as always punctual and professional

Excellent speedy service from quote to completion. Knowledgeable and helpful staff who completed the job answering any questions I had. Also happy to complete the work in a timescale that suited me.... More

Excellent speedy service from quote to completion. Knowledgeable and helpful staff who completed the job answering any questions I had. Also happy to complete the work in a timescale that suited me. Less

Prompt service, no fuss, cleaned up afterwards and all at a reasonable price. This is the second time I’ve used NIiclean and will happily do so again.

Mark and team did a great job on my roof - very responsive and fair price

Very professional two lads in a day and a half cleaned the roof. No mess left behind, explained everything at the end. Would definitely recommend. Thank you... More

Very professional two lads in a day and a half cleaned the roof. No mess left behind, explained everything at the end. Would definitely recommend. Thank you Less

Very helpful to deal with fast delivery packaged good so no damage what more could you want

Top class service, prompt delivery and very well priced, pleasure to deal with

Good price, quick delivery and does the job well if sprayed on a regular schedule.

WFP high pressure 35ft amazing bit of kit and amazing customer service will definitely 💯 be purchasing from this company again 100%👍👍

Done a Exterior soft wash on November and the Results were amazing 🤩 Strongly recommended

Shay sourced me with some cleaning products at NII Clean,great equipment I have to say,also I have to say he is a gentleman will go over beyond to help a customer.... More

Shay sourced me with some cleaning products at NII Clean,great equipment I have to say,also I have to say he is a gentleman will go over beyond to help a customer. Less

Got pressure washer trigger for my water fed pole good strong quality item postage and delivery spot on

Fantastic service from shay and team always get my order within 2 days and always on the other end of the phone if you ever need advice on anything.

I have used NII Clean on two occasions to clean all my roof gutters, soffits and barge boards. From the first point of contact to the guys arriving at my house they are very courteous and professional. I would highly recommend this cleaning service.... More

I have used NII Clean on two occasions to clean all my roof gutters, soffits and barge boards. From the first point of contact to the guys arriving at my house they are very courteous and professional. I would highly recommend this cleaning service. Less

Brilliant service from nii clean. I got the roof of my house cleaned and everything was explained about the treatment at the end. All mess was cleaned up they even used the water hose at the back of the house to wash patio. Will be recommending Nii to the neighbours... More

Brilliant service from nii clean. I got the roof of my house cleaned and everything was explained about the treatment at the end. All mess was cleaned up they even used the water hose at the back of the house to wash patio. Will be recommending Nii to the neighbours Less

Brilliant service provided by Nii Clean - Mark was very helpful clarifying how the service worked and answering all of my questions, Lee and the team doing the job on site were very thorough and extremely tidy, zero mess with all the gutters cleaned afterwards and nothing left on the ground. The scraping has certainly tidied up the look of the roof but looking forward to seeing the biocide kickin... More

Brilliant service provided by Nii Clean - Mark was very helpful clarifying how the service worked and answering all of my questions, Lee and the team doing the job on site were very thorough and extremely tidy, zero mess with all the gutters cleaned afterwards and nothing left on the ground. The scraping has certainly tidied up the look of the roof but looking forward to seeing the biocide kicking in over the next few months. Would highly recommend the company, I just wish everyone was so professional, very happy customer - well done guys 👍🏻 Less

Great experience, guys done a great job and cleaned up after themselves.

Professional service. Work carried out within the timeframe, weather permitting, property left clean and tidy, roof and ground.

NIIClean did a great job on my roof. The team arrived on time, got straight to work, and made sure everything was spotless. The roof looks brand new, and they didn’t leave any mess behind. They were easy to deal with, kept me informed, and the price was fair. If you’re looking for roof cleaning, I’d definitely recommend giving NIIClean a go!... More

NIIClean did a great job on my roof. The team arrived on time, got straight to work, and made sure everything was spotless. The roof looks brand new, and they didn’t leave any mess behind. They were easy to deal with, kept me informed, and the price was fair. If you’re looking for roof cleaning, I’d definitely recommend giving NIIClean a go! Less

Top service done couldn't fault these guys. Know their stuff about cleaning best in business!

Done in one day by two men. Excellent job minimum fuss.

Great job,came when they said,tidy work would recommend this company.

Cleaned the car port roof looks really clean now. Arrangement for the cleaning worked well and the guys cleaned up well worked hard. I would happily use them again.... More

Cleaned the car port roof looks really clean now. Arrangement for the cleaning worked well and the guys cleaned up well worked hard. I would happily use them again. Less

I order a full van window cleaning system from Shay and his team. The help I've had has been great and it's been a great system as well. I highly recommend them especially if you need help setting things up and have any issues, they are here to help you.... More

I order a full van window cleaning system from Shay and his team. The help I've had has been great and it's been a great system as well. I highly recommend them especially if you need help setting things up and have any issues, they are here to help you. Less

NII Clean did a fantastic job soft washing my son’s roof. Arrived on time, courteous and cleaned up after them. The difference made to the roof is unreal. I highly recommend.... More

NII Clean did a fantastic job soft washing my son’s roof. Arrived on time, courteous and cleaned up after them. The difference made to the roof is unreal. I highly recommend. Less

Went above and beyond to get the whole roof cleaned in a complex property. Had to use problem solving skills to make sure this was done in a safe manner, not only for themselves but for neighbouring properties. Many Thanks to Curtis and Lee for all their efforts.... More

Went above and beyond to get the whole roof cleaned in a complex property. Had to use problem solving skills to make sure this was done in a safe manner, not only for themselves but for neighbouring properties. Many Thanks to Curtis and Lee for all their efforts. Less

I had my roof cleaned 3 weeks ago and the result has been fantastic. The communication from first contact via the online form I filled in to conclusion was first class. The fellows that cleaned the roof were brilliant. It’s awesome to walkout the front and back doors and not be walking in moss from the roof.... More

I had my roof cleaned 3 weeks ago and the result has been fantastic. The communication from first contact via the online form I filled in to conclusion was first class. The fellows that cleaned the roof were brilliant. It’s awesome to walkout the front and back doors and not be walking in moss from the roof. Less

This is a top firm of professionals who provide exceptional customer service. Before doing the work they sent me an e-mail showing a video of the way in which they would be cleaning my roof and PVC guttering and downpipes. They did the whole job which included the cleaning of my pvc windows and door. I am absolutely delighted with the work they did .... More

This is a top firm of professionals who provide exceptional customer service. Before doing the work they sent me an e-mail showing a video of the way in which they would be cleaning my roof and PVC guttering and downpipes. They did the whole job which included the cleaning of my pvc windows and door. I am absolutely delighted with the work they did . Less

I received outstanding customer service from Nii clean. Shay went above and beyond by taking my call just after closing time to assist with my washer setup inquiries.... More

I received outstanding customer service from Nii clean. Shay went above and beyond by taking my call just after closing time to assist with my washer setup inquiries. Less

Really good customer service, replying to questions via email well after closing hours. Great products, prices and delivery times. Will definitely use again.... More

Really good customer service, replying to questions via email well after closing hours. Great products, prices and delivery times. Will definitely use again. Less

I honestly can’t say enough good things about this company! I found Nii Clean online and needed my Roof cleaned (after 12 years) and my white render (which was no longer white anymore. I called them on the Wednesday and they sent a team of 3 men out on the Friday morning who worked in strong winds and cleaned my roof. Then a day later they sent out the guys to clean the exterior walls. They e... More

I honestly can’t say enough good things about this company! I found Nii Clean online and needed my Roof cleaned (after 12 years) and my white render (which was no longer white anymore. I called them on the Wednesday and they sent a team of 3 men out on the Friday morning who worked in strong winds and cleaned my roof. Then a day later they sent out the guys to clean the exterior walls. They even cleaned my boundary walls and didn’t charge me any extra. Jenson and his team were very polite, professional but above all else transformed my home. They are so confident in their work that they didn’t ask for a penny until the job was finished. This was a 5500 square foot property! Thanks guys :) Less

I was disappointed that the promised call back did not happen! It puts me off returning & ill have to go elsewhere. The chap on the desk was very helpful too & that's what's bugged me!... More

I was disappointed that the promised call back did not happen! It puts me off returning & ill have to go elsewhere. The chap on the desk was very helpful too & that's what's bugged me! Less

Our roof and gutters were plastered with moss and grime. Taken care of in a day and looks great 👌

Excellent range of stock in store bought the ar hot and cold washer today, fantastic service from shay always a warm welcome in store. Very helpful and very professional highly recommended! I'll honestly be back again for more equipment and stock.... More

Excellent range of stock in store bought the ar hot and cold washer today, fantastic service from shay always a warm welcome in store. Very helpful and very professional highly recommended! I'll honestly be back again for more equipment and stock. Less

Very professional, nothing was to much trouble and very nice to deal with...installation of equipment was top class..

Good service friendly helpful staff

I own Sunshine Exterior Cleaning based in Coleraine. NII Clean has been with us since we opened our doors providing great equipment, fantastic advice, and the encouragement I needed to make my business successful. Shay and Mark have been a wealth of knowledge. Their equipment is top notch!... More

I own Sunshine Exterior Cleaning based in Coleraine. NII Clean has been with us since we opened our doors providing great equipment, fantastic advice, and the encouragement I needed to make my business successful. Shay and Mark have been a wealth of knowledge. Their equipment is top notch! Less

Recently had my roof and gutters cleaned. Amazing job by NII Clean. The guys where professional and worked really hard. Looking forward to see the long term benefit of the roof clean and the chemical spray applied. Thanks Mark and team... More

Recently had my roof and gutters cleaned. Amazing job by NII Clean. The guys where professional and worked really hard. Looking forward to see the long term benefit of the roof clean and the chemical spray applied. Thanks Mark and team Less

Today I got my PVC facias and gutterings cleaned for winter. The two guys done a marvellous job. Very professional. Respectful with your property and hard working lads. I would highly recommend Mark and his team. 5* service.... More

Today I got my PVC facias and gutterings cleaned for winter. The two guys done a marvellous job. Very professional. Respectful with your property and hard working lads. I would highly recommend Mark and his team. 5* service. Less

After care is terrible, had my roof cleaned vary well done, only problem with my guttering overflowing when raining have been in touch about it but no reply.... More

After care is terrible, had my roof cleaned vary well done, only problem with my guttering overflowing when raining have been in touch about it but no reply. Less

Excellent service and guys have done a great job on roof! Our gable wall was literally massive black patches and after only day two, most have gone..PVC is gleaming also... Would definitely recommend these guys.... More

Excellent service and guys have done a great job on roof! Our gable wall was literally massive black patches and after only day two, most have gone..PVC is gleaming also... Would definitely recommend these guys. Less

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, leavi... More

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. Thank you David Briggs, Lambeg. Less

shay and team are very friendly and helpful I would recommend these boys to anybody thinking of changing to pole system.

Cleaned my daddy’s gutters, windows and doors and did a great job. Would highly recommend 😊

Bought a Snow foam gun and Shay adapted it to fit my power washer, supplied me with the proper detergent and it’s been a fantastic job, great Labour saver for me, friendly lad and very helpful!... More

Bought a Snow foam gun and Shay adapted it to fit my power washer, supplied me with the proper detergent and it’s been a fantastic job, great Labour saver for me, friendly lad and very helpful! Less

professional staff, great job done. thoroughly recommend.

Very professional and clean tidy work. Roof cleaning performed and all around house was cleaned as well. really recommend them

They done a fantastic job at my house yesterday. Would definitely recommend and already have to neighbours.

Great service and decent price, Got the roof cleaned and treated so no more moss mess on my garden pathways, I would highly recommend this company for roof cleans.... More

Great service and decent price, Got the roof cleaned and treated so no more moss mess on my garden pathways, I would highly recommend this company for roof cleans. Less

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... More

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. Less

Mark & the team always do a great job of my windows. Always regular, would recommend to anyone.

Had my house and garage roofs cleaned today. Professionals at work. Great job done . Highly recommended . Thank you Mark and Adam

Got our PVC cleaned, happy polite young man, very pleased, would definitely recommend 👍

The team came and done a great job, would recommend them to anyone who needs this service,they give you a date and stick to it.

Brilliant job today. Adam cleaned and treated roof no mess or hassle. First class.

Out today cleaning my conservatory roof which was bogging. Fantastic job carried out by Adam. Top class, cheers

Great job carried out today on my roof. Excellent customer service . I would highly recommend.

Excellent job clearing gutters, cleaning fascia boards and windows and doors. Quick and efficient service. Thanks Mark

Mark is a great guy. Very helpful and windows looked great when finished. Highly recommend