Cleaning Since 1996 – Cleantech is a locally owned and operated professional cleaning company. We have been providing both Residential (strata) and Commercial (office) cleaning services in the Lower Mainland since 1996. Our wide-range of service includes interior and exterior building maintenance, carpet and floor cleaning, as well as janitorial and caretaker relief. Our exterior maintenance crews are proficient in window and building cleaning, as well as gutter cleaning and pressure washing. We pride ourselves on being extremely dependable, detail oriented and flexible to the needs of our customers.