Serving Downingtown

Since 2009, Dierolf Plumbing & Water Treatment has been the reliable partner for homeowners in Downingtown and East Brandywine Township. We know that Downingtown is diverse. It ranges from the historic row homes in the Borough to the sprawling luxury estates near Marsh Creek State Park. The company was founded by Mark Dierolf. He brings over 25 years of hands on industry experience to every job. Whether you live in a new build in the Preserve at Marsh Creek or a classic property near the Downingtown Diner, we understand the specific infrastructure that powers your home.

Downingtown presents a “tale of two waters.” In the Borough and denser neighborhoods like Windsor Ridge, most homes rely on public water. While safe, this water is often extremely hard and travels through aging infrastructure. Out in the rolling hills of East Brandywine and West Bradford, private wells are the norm. These wells face a completely different set of challenges. We frequently see acidic water that eats copper pipes and agricultural runoff that introduces nitrates. We treat every home as a unique ecosystem. We analyze your specific water chemistry to provide a fix that fits your lifestyle.

Well Water Challenges: Acid and Runoff

If you live in the estate areas near Marsh Creek or in East Brandywine, your private well likely needs attention. The local geology often produces water with a low pH. This acidic water silently corrodes copper piping from the inside out. This leads to pinhole leaks and blue green staining in your sinks. We also monitor for nitrates, especially in properties near active farmland. We install acid neutralizers to balance your pH and custom filtration systems to keep your water safe for your family.

Hard Water Protection for Modern Homes

For residents on public water, hard water is the primary enemy. The water in Downingtown typically tests between 8 and 22 grains of hardness. This mineral content destroys water heaters, clogs rainfall showerheads, and leaves white scale on your expensive fixtures. If you have a tankless water heater, this scale can void your warranty in a matter of years. We install high efficiency water softeners that remove these minerals. This protects your investment and ensures your water feels as luxurious as your home looks.

Respecting Your Home and Schedule

We know that your time is valuable. Whether you are commuting to the city or working from home, you cannot afford to wait around for a plumber. We pride ourselves on punctuality and cleanliness. Our technicians wear shoe covers to protect your floors and take the time to explain exactly what they are doing. We do not just fix the problem. We educate you on how to prevent it from happening again.

We are proud to serve the Downingtown community. We love grabbing a pizza at Victory Brewing Company or taking the family for a hike at Marsh Creek State Park just as much as you do. You might see our trucks stopping for breakfast at The Coffee Cup on Lancaster Avenue. We support the local businesses that make this area a destination. Our goal is to ensure your water quality is worry free so you can focus on enjoying life in this vibrant community. You can always check the local water quality reports to see the baseline data we work with.