Your tap water looks clean.
But is it really?
Microplastics have been found in tap water across SE Pennsylvania — and they're too small to see, smell, or taste. The only way to know what's in your water is to test it.
No cost. No obligation. Same-week scheduling available.
📞 Prefer to call? (484) 240-5234
Curious about filtration options? Use the calculator below — or scroll straight to the form to claim your free test now.
Your water deserves a closer look
Find out what's really in your water
Tell us where to send your Dierolf water expert.
We'll test your water on the spot and show you exactly what's in it. Free, no obligation.
April Offer: Get a $50 Gift Card After Your Free Water Test
Book your free in-home water test this month and we'll send you a $50 gift card of your choice after your appointment. No purchase necessary.
Here's what happens next
We reach out within 1 business day
A friendly Dierolf team member calls or texts to find a time that works for you. No pressure, just scheduling.
A Dierolf water expert comes to your home
Your water expert tests your water right at your tap — checking for microplastics, PFAS, and other contaminants. Takes about 30 minutes, totally free.
You get the truth about your water — on the spot
You'll know exactly what's in your water before we leave. If there's a filtration solution that fits, we'll show you options — no obligation to do anything.
"The most friendly, courteous, experienced, reliable team in town! Don't call anyone else; just call Dierolf."
— Donald M. · Google Review ⭐⭐⭐⭐⭐
The Clean Water Promise: If your test reveals contaminants and you choose a Dierolf filtration system, we guarantee your satisfaction — or we'll make it right. No questions asked.
Not ready to book yet?
See what a filtration system might cost for your home
Answer a few quick questions and get an instant budget range — no personal info needed.
SE Pennsylvania tap water contains microplastics, PFAS, and other contaminants that most homeowners never know about — because you can't see, smell, or taste them. The calculator below gives you a realistic budget range for a filtration system based on your specific situation.
Already seen enough?
Skip the calculator — your free in-home water test will show you exactly what's in your water with zero obligation.
💧 Yes! Test My Water →The free test beats any calculator
A Dierolf water expert tests your actual water at your tap and gives you exact results — microplastics, PFAS, hardness, pH, TDS, and more — in about 30 minutes. No guessing.
Filtration System Cost Estimator
Tell us about your water to get an instant budget range.
Real neighbors. Real results.
Here's what people say about the experience
"The team was timely, worked efficiently, and took the time to explain the results of the water test to me. Great experience!"
Cynthia S.
Google Review · 20 weeks ago
"Everyone was so friendly, helpful, skilled, and professional. Everything was explained thoroughly and prices were very reasonable. I can't recommend this company enough!"
W T. · Local Guide
Google Review · 21 weeks ago
"Sam was a pleasant professional. I appreciated that he explained the results of each water test and answered my questions. He worked efficiently."
Laurie H.
Google Review · 19 weeks ago
Ready to find out what's really in your water?
The test is free. The results are yours. There's nothing to lose.
Yes, Test My Water for Free ↑25+
Years serving SE Pennsylvania
1000+
Five-star Google reviews
5
Counties served in SE PA
100%
Satisfaction guaranteed