Get matched with top water treatment & purification system installers and replacers in Devon, PA

"Professional from the first meeting with Scott thru the installation and after with a call to ensure everything was working as advertised. Equipment was as advertised - efficient and effective with water meeting all state drinking water specifications. Thanks to Scott and the Purfect team.. "

"no comment"

"They did the work, thoroughly explained everything to me, gave me maintenance tips, and recommendations for future projects. Their estimate was lower than the competitor's was. They had everything they needed. They were great."

"Smooth and efficient"

"Fast communication, easy scheduling, all work was well explained and documented."

"TL;DR: Work remains incomplete. Commitments made by Haven H2O were not fulfilled. We chose this company based on strong reviews and a competitive estimate for replacing our whole?house water softener system. The contract was signed and a deposit paid in December 2025. Installation in January 2026 included materials, equipment, and labor. The brine tank was to be replaced, but Joe did not have it on?hand and said he would return to install it. He also said he would remove the old tank. Neither has occurred. Water softener tanks are not accepted by trash services and are considered hazardous material, creating added disposal burden. Beginning in March 2026, I texted Joe requesting removal of the old tank. ? Mar 4: ?I can get it next week.? ? Mar 12: ?I will be out there next week.? ? Mar 19: ?Trying to get there today or tomorrow.? A voicemail on Mar 30 received no response. Payment was made per the contract, but the work remains incomplete."

"Overestimated the time to complete an 9 hr job by scheduling a 16 hr window (2 guys x 8 hrs) and charged for 16 hrs regardless. I'd imagine they did the same for the materials, 60 feet of duct needed but they quoted 200. Got the job done, but probably twice the price of what it should have been."

"Good / fast job good price"

Dierolf Plumbing & Water Treatment is a 5-star rated plumbing and water treatment company serving homeowners throughout Montgomery, Bucks, Berks, Chester, Delaware, and Lehigh Counties. With over 25 years of industry experience, our licensed master plumbers and factory-trained water treatment specialists focus on one thing: delivering the most exceptional service experience ever.\n\nWe specialize in well inspections, professional water testing, water softeners, reverse osmosis systems, well pumps and tanks, sump pumps, water heaters, and water pressure solutions. Whether you're buying a home, improving your water quality, or upgrading your plumbing system, we provide clear options, upfront pricing, and solutions that are built to last.\n\nWith over 1,000 five-star reviews across two locations, homeowners trust Dierolf for honest recommendations, expert workmanship, and dependable results.

"WARNING: PLEASE BE EXTREMELY CAUTIOUS BEFORE USING THIS COMPANY I had a very FRUSTRATING and COSTLY experience. I paid $616 for a repair to fix a water leak under my toilet, but the issue was not resolved at all. One day later, when I contacted them again to report that the problem was still ongoing, I was told they would now use a ?second option? and was quoted an additional $1,539.35 (Total cost: $2155.35). When I requested that the $616 I had already paid?especially since the issue was never fixed?be applied toward the new work, they refused. Instead, they insisted I pay the full amount again and sign the invoice before they would proceed. This raised SERIOUS CONCERNS for me about both their pricing and overall service practices. I ultimately hired another professional who completed the job for $869, which further highlights how excessive their charges were. BASAED ON MY EXPERIENCE, I STRONGLY WARN OTHERS TO BE EXREMELY CAUTIOUS WITH THIS COMPANY. "