There are different cleaning methods depending on the source of roof discolouration - blue-green algae leaves black streaks on the roof come from blue-green algae, while moss leaves green patches on the roof. Experts recommend using a garden hose filled with chlorine and water to clean the roof.
Recommended Pros in Markham, ON
Fresh Glance Cleaning Services is a Family Owned & Operated company located in the GTA, serving Toronto, Durham and surroundin...Read more Experience 5-star customer service done right. We provide our clients with the best professional and high-quality window clean...Read more Maple Window and Eaves Cleaning is a professional Windows and Eaves Cleaning company that services the GTA and surrounding are...Read more
Recently Reviewed Markham Roof
Joanne and Jimmy are a lovely wife and husband team that are warm and friendly and do a great job on the windows. They are careful with everything and thorough in their work. You can barely tell there are windows...
Recently moved in to a new condo, my windows was really dirty. I called a couple of companies and didn’t get any response. This company provide me with the quote really quickly. The guy came on time. I got sparkling...
We've used WCP a number of times at our past homes. We just moved in to a new house and they came out for the first window cleaning. There was considerable construction dust/dirt inside and out, in addition to cement...