Plumbing and Water Treatment Services
serving the lehigh valley
We offer services from water treatment to plumbing. We will install water softeners, RO systems, acid neutralizers, and more! Contact us to learn more about how we can help you in southeastern Pennsylvania.

Not valid with any other coupon, offer, or discount. Restrictions may apply.

Not valid with any other coupon, offer, or discount. Restrictions may apply.
Fall 2023
huge savings
water treatment solutions
Not valid with any other coupon, offer, or discount. Restrictions may apply.
Ed came out to replace my UV filter and he was super fast and professional. This company makes sure things are taken care of right!
Very fair pricing, very easy to work with, always helpful and great customer service and responsiveness. So far I've had a sanitizer and neutralizer installed and I haven't had any issues with my equipment. The installation looks very clean and tidy as well.
Amazing crew, they explained every step. They showed how to use system as well. The workmanship was perfect…
The 2 young men were excellent! Very knowledgeable and professional. They explained every inch of the process. For us it was great. I am happy l selected Dierolf for our water softner. They not only treated us like family their product far surpassed others. Hats off to a job well done. A big thank you guys.
Very friendly, informational, and sincere. He answered all my questions. He gave me helpful tips and what I can expect to happen with my water system. He cleaned up the area where he was working. I would recommend Matt to my friends and family. Great job guys
Excellent job. Friendly and knowledgeable. In and out in 20 min! Thank you!
Fast to get here and assist. On time and thorough. Offered solutions and follow up.
Ed was professional and very friendly. I would recommend Dierolf to family and friends for their quality professional work and expert knowledge.
Quick and efficient! Very good work! Installed a constant pressure system in our house.
Very professional company. Quick friendly service. Very happy with the service. They put the customer first
Great first impression with my homeowner consult. Matt did an outstanding job. Definitely will use Dierolf for any jobs I need help with at my home in the future
Called them in the morning to schedule a plumber to come out to look at a leaky pipe. They were out within an hour, and it was fixed in about 2 hours. Communication was very impressive, everyone has been super nice and professional. Would highly recommend to everyone. Lukasz was the gentleman who came out and Kelly was who I spoke to on the phone.
We are very pleased with our decision to use Dierolf Plumbing for our whole house softener system. Not only were they competitive in pricing, but did an amazing job installing the system, explained how to use it and walked us through exactly what the system does. If you are on the fence about who to use, choose Dierolf Plumbing.
Everyone was very kind and helpful. They came quickly in my emergency. Many thanks to Dierolf Plumbing and Water Treatment!
I placed a call in the afternoon and by 4pm my bathroom faucet was hooked up and working again. Technician was knowledgeable and friendly.
Dierolf has been super helpful to me since i purchased my home in 2018. I go to Mark and his team for all my plumbing questions and needs. Their service is always prompt and I have always had very professional encounters with every team member. Most recently I had to have my water heater replaced, Matt W. Gave me a number of options and was very communicative about scheduling as well. He and Lukasz were on time and completed the replacement quickly and efficiently. They thoroughly cleaned up the mess from the old water heater leak as well. All in all, it was another great experience with these guys.
I can’t say enough of how good my experience was, from the very first phone call until the end. We were out of water(well issue) and I called them in the morning they came out assessed the work, left got the right tank and parts and were back and finished by the end of the day minimizing our inconvenient situation. Chris was great very knowledgeable and friendly.Thank you Highly recommend this team.
Always a pleasure to work with Alyssa when scheduling our water and well testing's for our clients. I have been working with Dierolf for 5 years and they always provide excellent customer service and take great care of their customers.
WHY CLEAN WATER?
the benefits of clean water
Increased Appliance Life
Increase home appliance life, efficiency, and reduce cleaning time with softened water.
Hydration
Proper hydration affects every aspect of your body – internal and external. Proper, healthy hydration is crucial to life.
Brain Health
Even minor dehydration can lead to problems with thinking and reasoning.
Healthy Respiratory System
Blood – which is 90% water – carries oxygen more efficiently through the body.
Maintain Weight
Water boosts your performance during a workout – especially those lasting longer than 30 minutes.
Support Kidney Function
Water improves kidney health making nutrients available to the body. It also enhances kidney function in removing waste.
WHY CLEAN WATER?
the benefits of clean water
Hydration
Proper hydration affects every aspect of your body – internal and external. Proper, healthy hydration is crucial to life.
Brain Health
Even minor dehydration can lead to problems with thinking and reasoning.
Healthy Respiratory System
Blood – which is 90% water – carries oxygen more efficiently through the body.
Maintain Weight
Water boosts your performance during a workout – especially those lasting longer than 30 minutes.
Support Kidney Function
Water improves kidney health making nutrients available to the body. It also enhances kidney function in removing waste.
Increased Appliance Life
Increase home appliance life, efficiency, and reduce cleaning time with softened water.
PRIDE IN WHAT WE DO
our work
An Industry Success Story
When a local company faced a difficult situation with their current water treatment, they had to act fast so they called Dierolf Plumbing and Water Treatment.
ARTICLES & INFORMATION
learn from us
The Role of UV Systems for Safe Pool Water
UV systems provide a safer, cost-effective solution for keeping pool water clean, reducing chemical usage and tackling chlorine-resistant microorganisms.
7 Simple Ways to Prepare Your Plumbing For Summer Vacation
Prep your plumbing for vacation: turn off water, adjust water heater, ensure appliances are drained, test sump pump, clean gutters and drains, keep pool pump running.
How Does a UV Disinfection System Protect You From Contaminated Water?
Discover how UV Disinfection Systems effectively protect against waterborne microorganisms. Learn how they work, what they protect against, and their limitations.