We hired Roman, the owner of WENSO, because he gave a very reasonable quote for an exterior window clean for our 3 storey, modern built home. He was very responsive and easy to deal with on the phone. He arrived as scheduled, provided high quality results and worked efficiently and cleanly. He literally washed away the effects of winter! It was a small price to pay for the now uninterrupted view through super clean, streak and spot free, windows. We wish every company was as professional and easy to work with and this effective & efficient at their work. We highly recommend Roman from WENSO. We will hire him again!