Klear View Window Cleaners Klear View Window Cleaners Ltd. is Kitchener-Waterloo's largest window cleaning company. We clean over 3,000 homes annually, service over 1,000 businesses monthly and we clean many highrises, condominium complexes, factories, institutions and new construction projects. For eavestrough cleaning, we climb right up to the eaves and pull out the debris by hand. We then put the debris in garbage bags and dispose of it for you. We always make sure that all downspouts are clean and running properly. We recommend that you clean your eavestroughs at least once per year to ensure that the water is running away from your house, and not down it or even into it.