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Highly-Trained Staff

Established in 1982, we have been providing the best quality window cleaning services for all sectors ever since. With all our staff trained and health & safety certified.

Effective Services

Efficient and effective. We ensure that all properties are cleaned and maintained with as little of impact as possible, with no mess left behind after any job. Have a look at our services here.

Convenient working hours

At Masterglass, we can provide our services as per your convenience. We can work around your schedule to cause minimal disruption to your daily schedule.

Quality Cleaning Tools

Masterglass uses the latest window cleaning equipment to clean the windows of your office. We use a Reach and Wash system to reach the corners and heights of your windows safely. From office spaces to museums and shops, we can provide effective window cleaning solutions.

Free Quotes

At your request, our friendly staff can visit your home and discuss your requirements. We can also provide a free, no-obligation quote for your approval, after which we can start the work. Request a quote here.

74%Domestic Window Cleaning
66%Commercial Window Cleaning
54%uPVC Cleaning
38%Power Hosing
Commercial Clients
Our Customers Say




If you need a first class window cleaning company, or require any guttering or roofing work, then I can very strongly recommend this family owned company. I have used Masterglass for over 20 years to clean my windows, clear my guttering and do roofing work at my home in Ravenhill Park. I have always found their work to be of the highest quality. The business is run by Jimmy and his son James, who are very professional and take great pride in their work. They are also friendly, helpful, and reliable.


Domestic client

Jimmy has been cleaning my windows for 6 years now and does a fantastic job even the awkward windows above my extension which are hard to reach. I’ve had them clean all my PVC on 2 occasions and it looks brand new each time. Highly recommend them to anyone!



There is no fault with Masterglass as far as I am concerned. They clean our office in Belfast city centre and always do a fantastic job.