#1
Dierolf Plumbing and Water Treatment, LLC
“Jeff is an exceptional plumber. He made sure I understood the problem and all available solutions. He made it easy to trust him! Dierolf is lucky to have him!” — Google review
Best Water Softener Services in Philadelphia, PA
The 10 best-rated water softener services in Philadelphia, PA average 5.0★ on Google across 9,409 reviews. Dierolf Plumbing and Water Treatment, LLC has the top rating (5.0★), and Bill Frusco Plumbing Heating and Air Conditioning has the most reviews (3,447). Updated October 27, 2026.
10 companies that meet our bar: rated 4.5★ or higher on Google, with a meaningful review history (9,409 reviews combined) and currently operating. Request a call back and the company will phone you directly.
#2
Home Advantage Plumbing Services LLC
“The seal for our toilet needed replacing. Victor was careful to not allow a mess. He knows what he is doing and did it in good time. He was able to come before the appointed time for which we are glad.” — Google review
#3
Heiland home services
“Tek was courteous, knowledgeable, and set clear expectations. I could tell he cared about getting our plumbing working as well as possible.” — Google review
#4
Trident Water Treatment
“Luis was so nice, professional and knowledgeable. He was a pleasure to have in our home and explained things so well. I look forward to continuing working with Trident and hopefully we can have Luis return to our…” — Google review
#5
MVP Plumbing
“Adam gave good advice on solution to washing machine shutoff valve replacement and also replaced outdoor hose faucet and indoor shutoff replacement. Excellent work performed quickly at a good price.” — Google review
#6
Bill Frusco Plumbing Heating and Air Conditioning
“We want to thank Evan and George. Appreciate their courteous, efficient and fast service. Will certainly use your company again in the future” — Google review
#7
Dierolf Plumbing and Water Treatment, LLC
“I commend the company for providing exceptional service and remaining involved even after the system installation. I am particularly impressed with the way Steve Feigan works. He is very knowledgeable and professional.” — Google review
#8
Plumbing Pals
“David was very helpful and generous with his time and explanations, resolved our leak issues quickly and thoroughly! 10/10 would recommend” — Google review
#9
Plumb it Heat it Cool it
“Thank you! Shawn was amazing. Rita was super helpful. And I appreciate getting out to my cold house as quickly as possible in the same day.” — Google review
#10
Certified Water Services
“Very happy with Certified Water Services and highly recommend. They were super knowledgable and affordable. Our water is better than ever!” — Google review
How we pick water softener services in Philadelphia
We scan Google Maps for water softener service listings in and around Philadelphia, keep only open businesses whose main category matches the service, and require a Google rating of at least 4.5 from at least 20 reviews. Companies are ordered by a confidence-weighted score that balances rating and review volume. We do not accept payment for placement.
Frequently asked questions
Who is the highest-rated water softener service in Philadelphia?
Dierolf Plumbing and Water Treatment, LLC has the highest Google rating on our Philadelphia list: 5.0 out of 5 from 1,323 reviews (as of October 27, 2026).
Which water softener service in Philadelphia has the most reviews?
Bill Frusco Plumbing Heating and Air Conditioning has the most Google reviews among the companies listed here: 3,447, with a 4.9★ average.
How are these water softener services chosen?
Only open Philadelphia-area businesses whose Google category matches the service, rated at least 4.5★ from at least 20 Google reviews. They are ordered by a confidence-weighted score of rating and review volume. Placement is never paid.
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