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 Alton, ON
Titans is a roof system company; knowledgeable in roofing and insulation. We encourage our customers to let us provide a free,...Read more <p>New Steel Roofers is a metal roofing company that services all of Ontario. Forget asphalt shingles that will fail in 8 to ...Read more For over 15 years Smart Roofing Inc. has provided full service roofing for residential, commercial and industrial customers th...Read more Since breaking into the industry, Handy Andy Roofing & Sheet Metal has been recognized as a dependable contractor. We’ve provi...Read more DLC Enterprises is a family run business., That has a strong relationship with all of our crew members. Our crew is made up of...Read more London Eco-Metal is the leading metal roofing manufacturer and installer based out of London, Ontario. They service all of On...Read more
Recently Reviewed Alton Roof
My roof had a leak and shingles were aging, so I requested a few contractors to assess my roof and provide recommendations. Shawn from Titans came out to assess my roof. We found that the existing...
We needed to replace our 14-yr. old shingle roof (the original builders' roof) and decided a metal roof made the most economic sense. We got quotes from several metal roofing companies but I must say that Jennifer from New...
We suffered significant roof damage in the 2018 wind storms in the Toronto area. We had a temporary tarp in place and needed a full roof replacement.
We originally hired another company who was slightly less expensive than the quote...