Sanders Plumbing Company
Plumber · Knoxville, TN
Our verdict
Sanders Plumbing posts 4.5★ across 307 reviews with 83% positive sentiment — strong on water heater installs and professional workmanship, but recurring pricing surprise complaints and one incomplete repipe job flagged.
Scores are our editorial reading of published customer reviews — not a verification, license check, or guarantee.
Ranked #12 of 15 plumbers we've reviewed in Knoxville, TN · compare all →
Our opinion, based on the 100 reviews we analyzed from Google, Yelp and BBB · Analysis updated Jun 2026 · How we decide ↗
What reviewers praise
Weekend and same-day availability confirmed: plumber on-site within hours on a Saturday and holiday weekend
1 cited review
“They promptly answered my call on the weekend and had an experienced plumber onsite within a couple of hours after checking on the issue. Diagnosed and replaced faulty valve. Plumber was outstanding and made sure everything was properly working as well as leaving work area immaculate.”
Cited in 2 of the 100 reviews we analyzed — 1 cited review not excerpted here.
Water heater installs praised as thorough — Master Plumbers cited by name, outstanding quality noted by DIY-capable reviewer
1 cited review
“I have been in my Powell home for 30 years and do a lot of general plumbing and electrical work myself, but this time decided to use Sanders Plumbing to replace my two water heaters. Outstanding Master Plumbers Brad and Austin did terrific job and were extremely courteous and caring.”
Upfront pricing and option transparency: full line replacement quoted with multiple options explained before work began
Cited in 2 of the 100 reviews we analyzed.
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
$350 billed for a 4-minute bolt tightening on a disposal — identical complaint posted on Google and Yelp by same customer
“We had a garbage disposal that didn't work. The person came out, tightened 1 bolt with an Allen wrench and was done. Took about 4 minutes from door to door and the tightening of the bolt took seconds. The Bill was $350...Why?”
Cited in 2 of the 100 reviews we analyzed.
Red flag
Repipe left unfinished with old pipe concealed — company unresponsive after requesting photos and sending inspector
“After breaking open a wall, I found the company did not finish portions of the crawl space, they just covered the old pipe within insulation instead of pex. They also failed to complete the rest of the connections. They have gone radio silent.”
$350 charge for 4-minute disposal fix (tightening one bolt); owner justified it as driving costs — flagged by same customer on both Google and Yelp
“We had a garbage disposal that didn't work. The person came out, tightened 1 bolt with an Allen wrench and was done. Took about 4 minutes from door to door and the tightening of the bolt took seconds. The Bill was $350...Why?”
Cited in 2 of the 100 reviews we analyzed.
Incomplete repipe job discovered after wall opened — old pipe left covered in insulation instead of PEX, connections unfinished, company went radio silent when confronted
“After breaking open a wall, I found the company did not finish portions of the crawl space, they just covered the old pipe within insulation instead of pex. They also failed to complete the rest of the connections. They have gone radio silent.”
Keep it in proportion: these concerns are cited in 3 of the 100 reviews we analyzed. Most reviewers report positive experiences — see the full rating picture below.
The evidence — in reviewers' own words
Critical
“I have been paying a monthly membership rate for years. After I had the entire house replumbed -- or so I was told. After breaking open a wall, I found the company did not finish portions of the crawl space, they just covered the old pipe within insulation instead of pex. They also failed to complete the rest of the connections. Even though the wall was open and had complete access while the plumber apparently …”
“Shame on them! Had a plugged sewer line from house to septic tank. Called Sanders and lady told me there would be a 49.99 just to come out, then the tech would let me know how much to clean the blockage. Silly me I thought it wouldn't be much for a 10 minute job. The lady said the tech would be at the house at 2:00..... Need less to say he showed up at 3. Then tells me the bill would be over 300.00 to remove …”
“⚠️ Would give 0 stars if possible. ⚠️ We had a garbage disposal that didn't work. The person came out, tightened 1 bolt with an Allen wrench and was done. Took about 4 minutes from door to door and the tightening of the bolt took seconds. The Bill was $350...Why? The service charge was only $95. So where did the rest of it come from? The owner of the company stated: "The worker drove 40 minutes one way...things …”
Positive
“After working with several plumbers in town, we have been so pleased to find Sanders. They are reasonable in pricing, straightforward and helpful in their recommendations, kind and capable. We are grateful to have them!”
“I had a water leak the day before New Years Eve. The responder, the owner, and dispatch were all friendly and helpful. They gave me several options to repair the leak, explained thoroughly the differences, and were upfront about the cost. They admitted they may be more expensive than the competition but they guarantee the work and did an absolute professional and complete job. They say you get what you pay for, well …”
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
Our sample skews heavily toward critical reviews — it disagrees with the Google average shown above.
Newest review in our sample: Jan 2026.
Across platforms
Should you hire Sanders Plumbing Company?
Hire if
- You need high-quality work that holds up over time
- You need fast same-day or after-hours response
Think twice if
- You need rock-bottom prices with zero flexibility on the quote
- You need detailed walkthroughs and written estimates before work starts
Look elsewhere if
- You're highly price-sensitive
Advice derived from the review analysis above — how we decide.
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Nearby: Knoxville · Briceville