These guys came to Kelowna and Andro (a Croatian with a very good sense of humour) did an excellent job. He was professional, careful and thorough. They use the filtered water method, so no buckets and sponges just a brush on a long pole and a filtered water spray. This technique is quicker, does not require ladders and works well, as long as the water filter is working 100%. Our large house was completed in 2 hours. Well done Andro.