J. Cox Plumbing
Plumber · Oshkosh, WI
Our verdict
Consistently excellent across all metrics with 111 five-star Google reviews; expect thorough work, honest pricing, and quick turnaround even on complex whole-house replumbing jobs.
Scores are our editorial reading of published customer reviews — not a verification, license check, or guarantee.
Ranked #14 of 15 plumbers we've reviewed in Oshkosh, WI · compare all →
Our opinion, based on the 5 reviews we analyzed from Google, Yelp and BBB · Analysis updated Jun 2026 · How we decide ↗
Only 5 reviews analyzed — treat this assessment as a first impression, not a track record.
What reviewers praise
All 5 reviews praise workmanship quality, with 2 explicitly highlighting thoroughness on major projects (galvanized pipe replacement, whole-house drain/water line replacement)
2 cited reviews
“Knowledge and thoroughness demonstrated was above and beyond expectation.”
“Very quick turnaround. You will not be disappointed.”
Fast response and completion times noted in 2 of 5 reviews; one reviewer reports 'very quick turnaround' and another praises 'prompt with communication and did the work in a timely manner'
2 cited reviews
“Very quick turnaround. You will not be disappointed.”
“Prompt with communication and did the work in a timely manner.”
Repeat customer loyalty demonstrated: one reviewer explicitly states they hired J. Cox multiple times over 2 months for four separate jobs (toilet flange, water heater, sump pump, hose bibb)
Cited in 1 of the 5 reviews we analyzed.
Honest pricing and value mentioned in 2 of 5 reviews as key differentiator ('great value', 'honest service')
1 cited review
“Prompt with communication and did the work in a timely manner.”
Cited in 2 of the 5 reviews we analyzed — 1 cited review not excerpted here.
What reviewers report — the concerns
We looked for patterns of complaints in the 5reviews we analyzed and didn't find any. That's rare — but it's a reading of published reviews, not a guarantee.
The evidence — in reviewers' own words
Positive
“This is a company you can trust. I've had them out a few times in the last couple months and they've done a wonderful job. They originally came out to replace a 50+ year old cast iron toilet flange, but they were so great to work with we also had them replace a gas water heater, sump pump, and freeze resistant hose bibb.”
“I got referred by my boss Dean and was so impressed with their service. I live in an older house and needed all the galvanized pipes replaced. The knowledge and thoroughness that the crew demonstrated at my house was above and beyond expectation. If you are looking for a plumber look no further. Thank you!”
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
Small sample — we've analyzed only 5 of 111 reviews so far. Treat this as a first read.
Newest review in our sample: Apr 2026.
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