When you turn on the tap in your Horsham home, you expect clean, safe water. But beneath the surface of this Montgomery County community lies a complex story about what’s really flowing through your pipes. For families living in the 19044 ZIP code, understanding local water quality isn’t just about peace of mind—it’s about protecting your health, your home, and your investment in one of Southeastern Pennsylvania’s most historic neighborhoods.
Horsham has faced unique water challenges stemming from PFAS contamination linked to historical activities at the former Naval Air Station Joint Reserve Base Willow Grove and the Horsham Air Guard Station. While the community has made remarkable strides in addressing these issues, many homeowners still grapple with additional concerns including hard water, iron, manganese, and aging plumbing infrastructure.
That’s where Dierolf Plumbing & Water Treatment comes in. For over 25 years, our Licensed Master Plumbers and Licensed Well Inspectors have served Montgomery County families with honest, expert solutions. With more than 1,000 five-star reviews, we’ve built our reputation on one simple principle: your family deserves water you can trust.
PFAS Contamination: From Crisis to Community Leadership
Horsham made national headlines when PFAS compounds—often called “forever chemicals”—were detected at elevated levels in groundwater near the former Naval Air Station. These chemicals, historically used in firefighting foam at military facilities, contaminated several public supply wells. The good news? Horsham has become a national leader in water treatment, implementing a “non-detect” policy for PFAS back in October 2019. The township now operates eleven PFAS removal treatment systems, making it one of only three municipalities in the country to achieve this level of protection. When the EPA announced final drinking water regulations for PFAS compounds in April 2024, Horsham’s local standards remained more stringent than the new federal requirements.
However, many homeowners don’t realize that while public water has been treated, some private wells in the area remain contaminated. For families on well water or those purchasing homes in affected areas, professional water testing and treatment remain essential. Our comprehensive guide to PFAS in Southeastern Pennsylvania explains the risks and treatment options available to protect your family.
Hard Water, Iron, and Lead: The Hidden Challenges
While PFAS garners headlines, hard water quietly causes havoc in thousands of Horsham homes. The Horsham Water and Sewer Authority confirms that local water sources are considered “very hard,” ranging from approximately 200 to 350 mg/L as calcium carbonate. Mineral buildup from hard water can shorten the life expectancy of water heaters, dishwashers, washing machines, and other appliances while clogging plumbing fixtures. For Horsham homeowners, a properly sized water softener isn’t a luxury—it’s an investment that pays for itself.
Notice orange-brown stains in your toilet, sink, or shower? You’re likely dealing with iron or manganese contamination. A Penn State survey found excessive iron concentrations in 17% of private water supplies sampled across Pennsylvania. While iron and manganese aren’t health threats, they create aesthetic problems that make water undesirable for daily use and can serve as a food source for iron-eating bacteria. Our well water quality guide explains how regional geology affects your water and the treatment options available.
For Horsham’s many beautiful older homes, lead in plumbing remains a concern. Lead pipes or service lines in buildings constructed before 1986 can leach harmful metals into your water. Up to 20% of total lead exposure in children is attributed to consuming contaminated water. Professional testing and certified filtration systems provide essential protection for families with young children or aging parents.
Part of the Horsham Community
Located just 16 miles north of Philadelphia, Horsham is more than another Montgomery County township—it’s a community with deep roots and strong identity. The area’s pride is evident at Graeme Park, the only surviving residence of a Colonial Pennsylvania Governor and a National Historic Landmark where families gather for tours and special events. When residents need a break, they often head to local favorites like Be Well Bakery & Café in nearby Huntingdon Valley for coffee and healthy fare, or The Copper Crow on Welsh Road for contemporary American cuisine. These gathering places represent what makes Horsham special: a blend of historic preservation and modern amenities where neighbors know each other and businesses invest in long-term relationships.
Comprehensive Water Quality & Plumbing Solutions for Horsham Homeowners
At Dierolf Plumbing & Water Treatment, we understand the unique water quality challenges facing Horsham residents—from PFAS concerns near the former base to hard water damaging your appliances to iron staining your fixtures. Our Licensed Master Plumbers and Licensed Well Inspectors bring over 25 years of experience solving Montgomery County’s toughest water problems.
We offer complete water testing and analysis to identify exactly what’s in your water, followed by customized treatment solutions. Our reverse osmosis systems provide certified PFAS removal and ultimate drinking water purity. For hard water problems, our water softening systems are calibrated to Horsham’s specific hardness levels, protecting your appliances and plumbing while improving water quality throughout your home. If you’re dealing with iron or manganese staining, our iron filtration systems eliminate discoloration and metallic taste.
For Horsham homeowners on private wells, we provide comprehensive well inspections and testing, particularly important for properties near the former Naval Air Station. Our real estate water services have supported thousands of successful property transactions across Montgomery County, giving buyers confidence and helping sellers avoid closing delays. We also offer complete residential plumbing services for everything from leak repairs to water heater installation, ensuring your entire home’s water system functions flawlessly.
Frequently Asked Questions About Water Quality in Horsham
Is my Horsham tap water safe to drink? If you receive water from the Horsham Water and Sewer Authority public system, your water is treated to “non-detect” levels for PFAS—among the strictest standards in the nation. However, private well owners should conduct regular testing, especially near the former base. We provide certified laboratory testing and can design treatment systems for any contaminants detected.
How often should I test my well water in Horsham? The Pennsylvania Department of Environmental Protection and Penn State Extension recommend testing annually for bacteria and nitrates, with periodic checks for pH, hardness, iron, manganese, and in Horsham specifically, PFAS compounds. Testing should also be done after any flooding, well work, or noticeable changes in taste, odor, or color.
Can you remove PFAS from my private well? Yes. We install advanced treatment systems specifically certified for PFAS removal, typically using granular activated carbon filtration or reverse osmosis technology. These systems can reduce PFAS to non-detect levels in your drinking water. We’ll test your water first to determine the type and concentration of PFAS present, then design a treatment solution matched to your specific contamination profile.
Don’t wait for water problems to damage your home or compromise your family’s health. Our factory-trained specialists are ready to provide honest assessments and proven solutions backed by more than 1,000 five-star reviews from satisfied Montgomery County families. Contact Dierolf Plumbing & Water Treatment today at our contact page to schedule your comprehensive water quality consultation and discover why Horsham homeowners have trusted us for over 25 years.
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Bryan was very professional, courteous, and efficient. Great service, thank you!
Great job installing our new water filtration system! Installers were very communicative and efficient. Well done.
Very very helpful and nice people! Wow i thought companies that care were gone not so!!! Dierolf’s people care and i think it’s a real reflection of the owner and how he runs his company and actually cares!! Thank you for a super great job and for caring!!
Service was great and very efficient. The guys were very friendly and quickly replaced the pump without any issues. Thank you.
They did a great job installing a new toilet in my bathroom. They were neat, clean, and paid attention to detail. Chris answered all of my plumbing questions without hesitation. Very satisfied... Highly recommend
