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.
Our house is old and has many issues related to its age. They helped us identify the severity of the problems we had, and gave us very reasonable and well informed options to work through it.
Pricing was consistently...
Gianfranco came to the appointment as promised and fixed our front door. He clearly explained what was wrong and what was needed to fix the problem. Thank you