Called about an AC issue during the hottest days this summer... prompt evaluation and fix on the…read moresame day. Fair cost and quality repair saved our family from the heat. Santos Mechanical will be our first call for any future needs.

Got heater and AC going and changed the sump in basement...these guys are excellent...will be using…read morethem again!

They are my go to company. I've used M&M 5 separate occasions at 3 different properties. 2 were…read moreplumbing and 3 were heating/a/c service. Very professional and responsive. Techs were great. Bill paying online. Good prices. I highly recommend them

Dedicated service at a good value (as plumbers go...;-)…read more Needed the kitchen sink faucet set replaced after some years of service. Moen provided a FULL warranty replacement set (Moen rocks!) and Dominic the M&M guy installed this handily for a reasonable charge. Some months later there was an internal issue with this part as well as a number of house plumbing issues that I figured to address at the same time. Brandon and his other brother Brandon set about these other issues but noted that the sink needed a specific Moen replacement part. Meanwhile, they tackled the house pressure regulator, which had been a real challenge for a prior plumber for some reason. Brandon measured the outside pressure and matched this up so our showers were still able to provide the same oomph. This was the root problem to our "water heater issue" - which included relief valve output due to surges. Unfortunately, we still had to buy/install a new overflow bladder. At my request, they also checked all the valves under the sinks and toilets for operation and leaks to see if they needed their packing adjusted or to be replaced. Note: After years of non-use, the typical valve used has packing that can dry and pull back leading to a leak. You can simply tighten up the screw on the front to tighten the packing. If you do replace this valve - go to a better quality ball valve design choice. We also had a significant leak in one of the exterior hose valves - had these replaced with the newer long-valve design that places the shut-off point internal to the house rather than right at the handle. We had them switch out the other one to this, as this will reduce the chance of cracked pipes (and possibly a very soggy cellar) from freezing. Dominic returned and facilitated communications with Moen and eventually did a re-installation. Moen provided an assembly and eventually express shipped a WHOLE NEW faucet set to get this problem solved. M&M was kind enough to significantly discount the charges on the faucet troubleshooting and re-replacement.

Phil came out, diagnosed and repaired a problem with my heater that two other companies could not…read morefigure out. He is a great technician, does excellent work at fair price. I personally recommend him to everyone.

Phil replaced my heater and AC last week. On time and expertly done. Phil is thorough and doesn't…read moretake short cuts. A few years ago, he replaced an auxillary gas line that apparently wasn't originally installed to code. Though it required much more time and labor than quoted, Phil did the work as quoted. I highly recommend him!

I have used them three times now. Their customer service is unlike anything you see anymore. They…read morefix everything perfectly, are reasonable prices and they bring you gifts every time they arrive! I won't use anyone else.

Dierolf Plumbing and Water Treatment has a lot of great people working for them including the…read moreowners, and the plumbers. I have had them test my water on numerous occasions. Additionally, have many realtors that are friends that use Dierolf Supply Co to do their water testing for real estate transactions. Mark, the owner, is a fountain of knowledge about everything to do with water.

Mark did a great job assisting me in repairing my mom's toilet. His service was prompt and he kept…read moreme informed every step of the way. I HIGHLY RECOMMEND!!!!!!

Extremely nice and speedy service. I would never call any other plumber, I have found "my guy" for…read moreanything plumbing. We set up an appointment and he was prompt and professional. Fixed my problem in no time!