No More Dirty Roofs Is The Richmond Roof Cleaning Specialist You Can Trust. Not all roof cleaners are alike. All of our roof cleaning is done using non-damaging low pressure and green, environmentally safe formulas. All of our roof cleanings come standard with a minimum 2 Year warranty, and we offer a maintenance package for an average of $50.00 a year that includes a lifetime warranty. We are licensed & insured up to 1 Million dollars.