My bathroom toilet was not flash so I called several plumbers and they were not successful they told me everything I didn’t want to hear,after only 10 minutes of them trying .so I called Mike Diamond the tech they send out Went to work right away and he explained in detail how my sewer system worked . He was very thorough in his explanation oh and by the way he was successful in clearing my bathroom toilet lol.. he gave me several options on what to do if my toilet backed up again.. I didn’t feel he was just trying to get a repair he actually tried and got my bathroom flowing again for only $99 .. very professional very pleased I’m definitely recommending you guys