They were on time and used the time very efficiently. The office staff was very polite over the phone and they were able to dispatch someone immediately. Daren, the serviceman, was professional and very knowledgeable and answered all my questions and provided me with the information needed to prevent another event. I'll just call them next time instead of trying to do it myself. Wallner saved me from thousands of dollars worth of water damage had I not called them. It was worth the small investment to have it done the right way!