C4 Plumbing
Plumber · Centennial, CO · Open 24 hours per Google listing
Our verdict
Mark at C4 Plumbing consistently delivers fast, fairly-priced work with exceptional professionalism—multiple clients praise him for beating competitor quotes and going above and beyond.
Scores are our editorial reading of published customer reviews — not a verification, license check, or guarantee.
Our opinion, based on the 5 reviews we analyzed from Google, Yelp and BBB · Analysis updated Jun 2026 · How we decide ↗
Lists 24-hour service on its Google profile — and reviewers describe after-hours calls.
Only 5 reviews analyzed — treat this assessment as a first impression, not a track record.
What reviewers praise
All 5 reviews emphasize speed and quick turnaround on jobs, including water heater replacement and valve installation.
Cited in 4 of the 5 reviews we analyzed.
Pricing fairness demonstrated by multiple clients: one explicitly received 'very high quotes from several other vendors' but found Mark 'reasonably priced'; another notes he even fixed a seized garbage disposal for free.
Cited in 1 of the 5 reviews we analyzed.
Mark goes above and beyond—4 of 5 reviews mention extra service like free garbage disposal repair, educational follow-up advice, or willingness to 'do whatever it takes to make sure you are happy.'
Cited in 3 of the 5 reviews we analyzed.
Repeat customer and referral source: one client has used Mark 'many times' and continues recommending; a real estate broker trusts him with client work.
Cited in 2 of the 5 reviews we analyzed.
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
“Mark has helped us yet again. This time he replaced our water heater. The process was seamless and extremely quick. Mark is extremely professional and easy to work with he leaves everything clean and will do whatever it takes to make sure you are happy! He has helped us with many plumbing fixes and continues to do great work I would recommend mark for any plumbing jobs you have!”
“Mark Canty is the best! Friendly, competent, communicative, creative, highly skilled, prompt - a consummate professional in every way! And C4 operates with a great customer-facing system.”
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 346 reviews so far. Treat this as a first read.
Newest review in our sample: May 2026.
Should you hire C4 Plumbing?
Best for
- Emergency and same-day calls
- Budget-conscious homeowners
- Complex installs and remodels
- Water heater install/repair
- Whole-house repiping
Hire if
- You need a plumber who actually shows up when scheduled
- You need high-quality work that holds up over time
Think twice if
- You need rock-bottom prices with zero flexibility on the quote
- You need airtight scheduling and guaranteed arrival times
Look elsewhere if
- You can find better-priced options nearby
Advice derived from the review analysis above — how we decide.
Own C4 Plumbing?
You can respond to our analysis, correct business facts, or dispute the accuracy of a quoted review. Responses that check out get published on this page, and factual errors get corrected — see our corrections policy. We don't remove accurate quotes, but we'll re-run your assessment as your reviews change.
Find plumbers near you
C4 Plumbingisn't in one of our ranked city guides yet — the nearest covered markets are below.
Nearby: Littleton · Watkins · Castle Rock · Franktown