Chester County

I can’t say enough about this company.I used them in a recent real estate transaction and everyone that I dealt with from the owner, to the salespeople, the technicians and the office staff was responsive, friendly, knowledgeable and professional. A++ company. Highly recommended.

Responded very quickly and did a fast efficient job! Will definitely recommend this company to family and friends.

Alyssa, Mark, Justin, David, Brian, Kelly, Marion, Lydia, Matt, Zach. - All great to work with and so informative! This is a great company doing good things for your health!

If you are considering a water treatment system or any plumbing I highly recommend Dierolf. If there was a higher rating than 5 stars, we would have given it. From the sales person Matt, the office staff and most importantly the installation technicians Jon and Dave, the knowledge and professionalism has been outstanding. The work was done in a timely manner. The installation was clean and they made sure we understood our system, how it works, expectations, and their availability if any problems or questions. Exceptional is an understatement!

Dierolf plumbing is the best. They are responsive and very proferssional and they have helped my with emergencies in the best way, calling back almost immediately then coming up with a plan. Can't go wrong with this plumbing company! 5/30/24 Update: Today Justin Bottke did maintenance on my water softening and RO systems and did a terrific job. He took the time to fully explain all the details of how my system is working and to proactively look at our well tank, fittings, valves, and he showed me his areas of future concern, to make sure everything is working as it should. All much appreciated.