I have had Mayday seal my house against wildlife entry and install gutter guards. During the recent heavy rains I noticed one section of my gutters overflowing. I called Mayday and they came out and found that it was a simple clog in the downspout caused by one of the downspout joints being installed incorrectly (not installed by Mayday). They found and repaired the problem and when I offered to pay I was told that there was no charge because they should have found the problem when they installed the gutter guards. Now that is cousomer service.