62/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.9★ from 328 Google reviews, listed on Google as “Septic system service”.
Best Septic Service Companies in Knoxville, TN (2026)
61 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Knoxville: Rose Septic Services, CR Score 62/100; 4.9★ from 328 Google reviews; open 7 days a week.
- 2
Best for emergencies (open 24/7): Pipe Wrench Plumbing, Heating & Cooling, posts 24/7 hours; ranked #2 of 61.
- 2
Most-reviewed: Pipe Wrench Plumbing, Heating & Cooling, 5,705 Google reviews at 4.8★, the most of 61 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
61 Knoxville septic service companies are ranked here by CR Score, from ten published factors. 30 are open 24/7, 44 open Saturdays and 34 open Sundays, based on posted hours. The median Google rating is 4.9★ across 61 rated businesses.
Top 10 septic service companies in Knoxville at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Rose Septic Services | 62 | 4.9★ (328) | Knoxville | Sat · Sun · Evenings | Overall |
| 2 | Pipe Wrench Plumbing, Heating & Cooling | 61 | 4.8★ (5,705) | Knoxville | 24/7 | Emergencies, Most reviews |
| 3 | Valley Septic | 61 | 4.9★ (52) | Knoxville | 24/7 | — |
| 4 | Hometown Plumbing, Electrical & HVAC | 61 | 5.0★ (35) | Knoxville | 24/7 | — |
| 5 | Kington Sewer & Septic Drain Cleaning Service Inc. | 61 | 4.6★ (73) | Knoxville | 24/7 | — |
| 6 | Smokey Mountain Septic | 60 | 5.0★ (150) | Knoxville | Sat · Evenings | — |
| 7 | All Out Septic Services | 60 | 4.9★ (27) | Knoxville | 24/7 | — |
| 8 | Maryville Septic Pumping & Service | 60 | 5.0★ (21) | Knoxville | 24/7 | — |
| 9 | Top Septic Service | 59 | 4.9★ (133) | Knoxville | 24/7 | — |
| 10 | Advanced Heat AC & Plumbing | 59 | 4.8★ (1,436) | Knoxville | 24/7 | — |
The 61 best septic service companies in Knoxville, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Based in Knoxville
61/100CR ScoreRanked #2 because of its Google rating and review volume: 4.8★ from 5,705 Google reviews, the most in Knoxville.
Based in Knoxville
61/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 52 Google reviews, listed on Google as “Septic system service”.
Based in Knoxville
61/100CR ScoreRanked #4 because of its Google rating and trade focus: 5.0★ from 35 Google reviews, listed on Google as “Septic system service”.
Based in Knoxville
61/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.6★ from 73 Google reviews, listed on Google as “Septic system service”.
Based in Knoxville
60/100CR ScoreRanked #6 because of its Google rating and trade focus: 5.0★ from 150 Google reviews, listed on Google as “Septic system service”.
Based in Knoxville
60/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.9★ from 27 Google reviews, listed on Google as “Septic system service”.
Based in Knoxville
60/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “Septic system service”.
Based in Knoxville
59/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.9★ from 133 Google reviews, listed on Google as “Septic system service”.
Based in Knoxville
59/100CR ScoreRanked #10 because of its Google rating and review volume: 4.8★ from 1,436 Google reviews.
Based in Knoxville
59/100CR ScoreRanked #11 because of its Google rating and review volume: 4.8★ from 1,468 Google reviews.
Based in Knoxville
59/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 14 Google reviews, listed on Google as “Septic system service”.
Based in Knoxville
59/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.4★ from 19 Google reviews, listed on Google as “Septic system service”.
Based in Knoxville
58/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.9★ from 82 Google reviews, listed on Google as “Septic system service”.
Based in Knoxville
58/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Septic system service”.
#16 Zoom Drain
Based in Knoxville
58/100CR ScoreRanked #16 because of its Google rating and review volume: 5.0★ from 329 Google reviews.
Based in Knoxville
58/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.6★ from 9 Google reviews, listed on Google as “Septic system service”.
Based in Knoxville
58/100CR ScoreRanked #18 because of its Google rating and trade focus: 3.9★ from 33 Google reviews, listed on Google as “Septic system service”.
Based in Knoxville
58/100CR ScoreRanked #19 because of its Google rating and review volume: 4.8★ from 513 Google reviews.
Based in Clinton, 20 mi away
57/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.9★ from 127 Google reviews, listed on Google as “Septic system service”.
Based in Knoxville
57/100CR ScoreRanked #21 because of its Google rating and review volume: 5.0★ from 196 Google reviews.
Based in Knoxville
57/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “Septic system service”.
Based in Knoxville
57/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.2★ from 5 Google reviews, listed on Google as “Septic system service”.
Based in Seymour, 10 mi away
57/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.9★ from 226 Google reviews, listed on Google as “HVAC contractor”.
Based in Knoxville
56/100CR ScoreRanked #25 because of its Google rating and review volume: 4.9★ from 118 Google reviews.
Septic service companies ranked #26 to #50
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 61 ranked septic service companies here; the rest are on their profiles.
Also serving Knoxville
20 more septic service companies within 25 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| A1 Septic Installers | 5.0★ (1) | In Knoxville |
| AAC HAULING & EXCAVATION | 5.0★ (2) | 23 mi |
| Backflow Specialty Co Inc | 4.4★ (31) | In Knoxville |
| Bandit Utility Construction LLc | 5.0★ (1) | In Knoxville |
| Cedar Branch Excavating, LLC | 2.0★ (1) | In Knoxville |
| Choice One Plumbing | 5.0★ (10) | In Knoxville |
| Dynamis Inc. | 4.2★ (5) | In Knoxville |
| Eco Septic Tank Pumping Knoxville | In Knoxville | |
| Ferguson Plumbing Supply | 4.6★ (63) | In Knoxville |
| Gibson Directional Drilling | 3.9★ (7) | In Knoxville |
| Ideal Septic & Drain Services | 5.0★ (1) | 23 mi |
| Kingston Sewer & Septic Drain | 1.0★ (1) | 15 mi |
| Millennium Builders LLC | 5.0★ (10) | In Knoxville |
| Nelson Concrete & Construction | 5.0★ (2) | 22 mi |
| Rooter Express Knoxville | 1.0★ (2) | In Knoxville |
| Southern Flow Waste Water Solutions | 5.0★ (2) | In Knoxville |
| Southern Pipe & Supply | 5.0★ (3) | In Knoxville |
| Speedy Septic | 7 mi | |
| Underwood Utility LLC | 5.0★ (2) | In Knoxville |
| Valley Plumbing, Inc. | 5.0★ (2) | 15 mi |
How we ranked Knoxville septic service companies
We scored 61 Knoxville septic service companies on ten factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed November 3, 2026.
Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from | In Knoxville data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |
Septic service companies in Knoxville: frequently asked questions
Who is the best septic service company in Knoxville?
By CR Score, the highest-ranked septic service company in Knoxville, TN is Rose Septic Services with a CR Score of 62/100. It has 4.9★ from 328 Google reviews. It is open 7 days a week. Pipe Wrench Plumbing, Heating & Cooling (#2) and Valley Septic (#3) follow. We ranked 61 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Knoxville?
ContractorsRanked ranks 61 septic service companies serving Knoxville, TN. 35 of them are based in Knoxville; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Knoxville are open 24/7?
30 ranked septic service companies in Knoxville post 24/7 hours. The highest-ranked are Pipe Wrench Plumbing, Heating & Cooling (#2), Valley Septic (#3) and Hometown Plumbing, Electrical & HVAC (#4). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Knoxville work on weekends?
44 of 61 ranked septic service companies post Saturday hours and 34 post Sunday hours. The highest-ranked open Saturdays are Rose Septic Services (#1), Pipe Wrench Plumbing, Heating & Cooling (#2) and Valley Septic (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Knoxville septic service companies have?
The median Google rating among 61 rated septic service companies in Knoxville is 4.9★, with a median of 37 reviews. Pipe Wrench Plumbing, Heating & Cooling has the most, 5,705 reviews, and ranks #2. We adjust ratings for review count, so a few five-star reviews cannot top the list.
How does ContractorsRanked rank septic service companies?
Each septic service company gets a 0–100 CR Score from ten published factors, led by reputation (25%), credentials (15%), review volume (10%) and trade focus (10%). A business with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Do septic service companies outside Knoxville count in this ranking?
Yes, if they are within 25 mi of the Knoxville city center, our service radius for septic service companies. Each listing shows where the business is based and how far away it is. Proximity is 5% of the CR Score, so a nearby business gets a small edge.
Can septic service companies pay to rank higher on ContractorsRanked?
No. The CR Score never reads payment status, and this ranking has 0 paid placements. Up to 3 Featured businesses may appear above the list, labelled Featured and showing their honest rank.
Update log for Knoxville
- November 2026: CR Scores recalculated for 61 septic service companies serving Knoxville.
More septic service companies and Knoxville pages
Septic service companies near Knoxville
- Septic service companies in Seymour, TN50 ranked
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