Mastery Plumbing
Plumber · Allentown, PA · Open 24 hours per Google listing
Our verdict
Owner Dan personally took a Sunday call and installed a water heater on the spot within 3 hours. But one customer flagged a $7,800 estimate to redo 40ft of pvc that another plumber did for $4K less, plus a 10-day clog re-clog dispute.
Scores are our editorial reading of published customer reviews — not a verification, license check, or guarantee.
Our opinion, based on the 82 reviews we analyzed from Google, Yelp and BBB · Analysis updated May 2026 · How we decide ↗
Lists 24-hour service on its Google profile — and reviewers describe after-hours calls.
What reviewers praise
Owner Dan came to a Sunday emergency within 3 hours and installed a new water heater on the spot the same day
1 cited review
“The owner came out to my in-laws' home on a Sunday afternoon within three hours of me calling.”
Cited in 2 of the 82 reviews we analyzed — 1 cited review not excerpted here.
Cleared a blocked main sewer line within 2 hours of the initial call with the proper tools on the van
Cited in 1 of the 82 reviews we analyzed.
When a customer couldn't afford the emergency rate, scheduled first thing the next morning and arrived early so they could get to work on time
1 cited review
“He gave me three options for the work to be done, and once I chose which one I wanted to proceed with, they got right to work.”
What reviewers report — the concerns
Other directories bury these. We think you should read them before you call. Every concern below comes from the reviews it cites.
Red flag
One customer charged $800+ for a sink clog that re-clogged 10 days later; alleges a warranty waiver was signed during the visit
“Then they gave me a $7800 estimates to redo a 40ft of pvc that another plumber did with a better plan and better materials for $4K less.”
Red flag
Premium-tier upsell pattern — $1,800 to $4,000 spread on sump pump options with the high tier reportedly installed sloppily
“They left a wire lead in a water bottle to stop a low battery acid alarm going off, not to manufacturer instructions.”
One $4,000 sump pump install reportedly left a wire lead sitting in a water bottle to silence a low-battery alarm — not per manufacturer instructions
“They left a wire lead in a water bottle to stop a low battery acid alarm going off, not to manufacturer instructions.”
Cited in 2 of the 82 reviews we analyzed.
One $7,800 estimate to redo 40ft of pvc was reportedly $4,000 above what another plumber charged for the same scope
“Then they gave me a $7800 estimates to redo a 40ft of pvc that another plumber did with a better plan and better materials for $4K less.”
Keep it in proportion: these concerns are cited in 3 of the 82 reviews we analyzed. Most reviewers report positive experiences — see the full rating picture below.
The evidence — in reviewers' own words
Critical
“A diabolical rip-off business!!! I got charged more than $800 for a clogged sink that clogged again 10 days later. But wait, doesn’t PA law says they have to guarantee a cleared drain for 30 days? Well not if they talk your wife into signing a warranty waiver while hard selling her on a bunch of other useless nonsense. Then they gave me a $7800 estimates to redo a 40ft of pvc that another plumber did with a better …”
“Update: only about a year since their work was “finished” and only after a handful of uses, our soaker tub that they had to install twice already is leaking so we can’t use our new tub. Original: Sad to say I am extremely disappointed. They damaged our new dishwasher, didn’t tell us. A huge scratch because they didn’t screw in a bolt all the way. Then they tried to make it our job to fix it and call the …”
“I scheduled an appointment to have what I thought was a plumber, come to my home for toilet issue. An individual from the company stopped by and I showed them the bathroom and toilet that is giving me issues. After checking the toilet the individual described the products that this company sells and installs. This company specializes in filtration systems. After the sales pitch about $5000-$6000 water softener …”
Positive
“The owner came out to my in-laws’ home on a Sunday afternoon within three hours of me calling. But that wasn’t even the best part. He brought a water heater with him, installed it on the spot and got their hot water back the same day. Later in the week he sent his team back to replace some questionable piping, and they did a great job from start to finish. Everything was handled professionally with excellent …”
“Although l thought the bill was a bit higher then I expected. The guys were very good at what they do and they were on site at my house within about 2 hours from my initial call, that was impressive. They were able to clear my blocked main sewer line with the proper tools needed loaded in their work van. Yes I probably could've found a cheaper company out there but I feel with the prompt service i got and the …”
Quotes are reproduced verbatim from public reviews on the platforms shown; we select which to feature, and selection reflects our editorial judgment. Report a quote that doesn't match its source ↗
The rating picture
Newest review in our sample: Dec 2025.
Should you hire Mastery Plumbing?
Hire if
- You need fast same-day or after-hours response
- You need a plumber who actually shows up when scheduled
Think twice if
- You need rock-bottom prices with zero flexibility on the quote
- You need warranty-grade work on a complex or high-stakes install
Look elsewhere if
- You're highly price-sensitive
Advice derived from the review analysis above — how we decide.
Own Mastery Plumbing?
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Find plumbers near you
Mastery Plumbingisn't in one of our ranked city guides yet — the nearest covered markets are below.
Nearby: Sellersville · Bethlehem · Bechtelsville · Montgomeryville