PROPERTY TYPE AVERAGE PRICE RANGE SERVICE SCOPE Small Home (up to 10 windows) $220 - $330 Single story, exterior or basic clean Medium Home (10 - 20 windows) $330 - $440 Typical 3-bedroom home Large/ 2 Storey Home $440 - $550 Multi-level glass, requires ladders or poles Extra Large Home $550+ Large property with glass walls and balustrades *Interior Windows: Adds roughly 50% to the base exterior price. Factors that increase the price If its been multiple years since their las