I Purchased a plumbing coupon from Mayer Plumbing, for the repair of a shower faucet that would only allow hot water to come out, but not cold water. When Brandon the first repair guy arrived on 11/11, he assessed the situation and told me I needed to replace the cartridge in the faucet. However, after further lengthy examination, I was informed I did not need a cartridge, but a diverter. Now mind you, this repair just took a quantum leap from the $149.00 coupon price to $684.00 :-(. In addition to the added plumbing expense, Brandon informed me that in order to install the diverter he would have to cut a hold in the wall of the adjoining room to access the pipes. You can now imagine, the horror on my face when I've just realized $684.00 has potentially turned into $800-$1,000. Now to be fair, this has nothing to do with Mayer, it is just the situation at hand. In order to get the faucet repaired, this is what needed to be done. So Teresa, the lovely women that she is, at the office, scheduled a more experienced plumber to come out the next day and assess the problem again, and begin the demolition, if necessary. Hooray!!!!!! Roger "MY Hero" to the rescue :-) :-) :-) After spending some time troubleshooting, and endlessly running back and forth, up and down two flights of stairs to turn the water on and off, Roger figured it out!!!!! There is definitely something to be said for experience, and many, many years working in your profession. I could see that Roger was adamant about doing everything he knew how, to keep us from having to tear a hold in our drywall and deal with that expense! In the end, the shower faucet works great, my coupon cost covered the repair, and I have no hole in my wall!! From Teresa, making sure there was an experienced serviceman available for me ASAP, not to mention, being an absolute joy to speak with on the telephone, to Roger, "My savior", coming through and saving the day. I will ALWAYS rely on Mayer for my household plumbing needs. Thank you all for your service, professionalism, and your integrity. It gives customers hope, that there are service providers out there who are fair, honorable, and trustworthy!!!