We specialize in moss removal that will help preserve the life of your roof while improving the look of your home.



includes manually removing moss that has accumulated. A blower is used to remove loose debris from the roof and gutters, and then to tidy up the grounds before they leave your site.



involves applying Thomson’s unique non-toxic solution, which neutralizes any moss, lichen, mould or mildew present. We use a gentle, saturating method of application; we do not use pressure washing, which can damage your roof. 



guarantees that your roof will remain moss free for a specified number of months or we will return to make sure that you are satisfied, at no cost to yourself. We assess each roof individually, and will provide you with the most accurate warranty we can.

Still have questions? Check out our FAQ.

Moss Prevention Program

Roofs must be re-treated promptly at the end of the warranty period to avoid allowing moss to re-root and grow. Although it may be convenient or seem financially prudent to delay re-treatment, we have found that the monthly cost to maintain your roof remains constant regardless of when re-treatment is done, the only change is the potential damage that is done to your roof when moss is allowed to continue to take root.

Over ten years of proper maintenance, a roof maintained regularly by Thomson Roof Treatment will avoid damage caused by moss re-growth

Get in touch today for a free quote!