63/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.9★ from 176 Google reviews, listed on Google as “Septic system service”.
Best Septic Service Companies in McKinney, TX (2026)
45 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in McKinney: Underwood Plumbing and Septic, CR Score 63/100; 4.9★ from 176 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Royal Flush Septic, Inc., posts 24/7 hours; ranked #2 of 45.
- 9
Most-reviewed: Bacon Plumbing Heating Air Electric, 7,092 Google reviews at 4.9★, the most of 45 ranked; ranked #9.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
45 McKinney septic service companies are ranked here by CR Score, from ten published factors. 16 are open 24/7, 26 open Saturdays and 18 open Sundays, based on posted hours. The median Google rating is 4.9★ across 45 rated businesses.
Top 10 septic service companies in McKinney at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Underwood Plumbing and Septic | 63 | 4.9★ (176) | McKinney | 24/7 | Overall |
| 2 | Royal Flush Septic, Inc. | 61 | 4.8★ (161) | Allen, 7 mi away | 24/7 | Emergencies |
| 3 | HomeField Collin County | 59 | 5.0★ (79) | McKinney | Sat · Evenings | — |
| 4 | Cantex Septic Pumping | 59 | 5.0★ (49) | Edmonton, 11 mi away | 24/7 | — |
| 5 | Heartland Grease & Septic | 57 | 5.0★ (77) | Dallas, 19 mi away | 24/7 | — |
| 6 | A-1 Septic Service | 57 | 4.4★ (29) | Princeton, 9 mi away | 24/7 | — |
| 7 | Bacon Plumbing Heating Air Electric | 57 | 4.9★ (1,821) | Plano, 13 mi away | 24/7 | — |
| 8 | Nortex Septic Systems | 57 | 5.0★ (7) | Allen, 7 mi away | 24/7 | — |
| 9 | Bacon Plumbing Heating Air Electric | 56 | 4.9★ (7,092) | Rockwall, 22 mi away | 24/7 | Most reviews |
| 10 | TCS Grease Trap Cleaners | 55 | 5.0★ (63) | Irving, 25 mi away | 24/7 | — |
The 45 best septic service companies in McKinney, 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 Allen, 7 mi away
61/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.8★ from 161 Google reviews, listed on Google as “Septic system service”.
Based in McKinney
59/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 79 Google reviews, listed on Google as “Septic system service”.
Based in Edmonton, 11 mi away
59/100CR ScoreRanked #4 because of its Google rating and trade focus: 5.0★ from 49 Google reviews, listed on Google as “Septic system service”.
Based in Dallas, 19 mi away
57/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 77 Google reviews, listed on Google as “Septic system service”.
Based in Princeton, 9 mi away
57/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.4★ from 29 Google reviews, listed on Google as “Septic system service”.
Based in Plano, 13 mi away
57/100CR ScoreRanked #7 because of its Google rating and review volume: 4.9★ from 1,821 Google reviews.
Based in Allen, 7 mi away
57/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Septic system service”.
Based in Rockwall, 22 mi away
56/100CR ScoreRanked #9 because of its Google rating and review volume: 4.9★ from 7,092 Google reviews, the most in McKinney.
Based in Irving, 25 mi away
55/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 63 Google reviews, listed on Google as “Septic system service”.
Based in Dallas, 5 mi away
55/100CR ScoreRanked #11 because of its Google rating and trade focus: 5.0★ from 61 Google reviews, listed on Google as “Septic system service”.
Based in Dallas, 3 mi away
54/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 24 Google reviews, listed on Google as “Septic system service”.
Based in Garland, 15 mi away
54/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.9★ from 54 Google reviews, listed on Google as “Septic system service”.
#14 Total Septic
Based in Dallas, 19 mi away
54/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.9★ from 86 Google reviews, listed on Google as “Septic system service”.
Based in Farmers Branch, 22 mi away
53/100CR ScoreRanked #15 because of its Google rating and review volume: 4.7★ from 1,550 Google reviews.
Based in Plano, 10 mi away
53/100CR ScoreRanked #16 because of its Google rating and review volume: 4.7★ from 145 Google reviews.
Based in Anna, 11 mi away
53/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 28 Google reviews, listed on Google as “Septic system service”.
#18 Excalibur Septic
Based in Wylie, 11 mi away
53/100CR ScoreRanked #18 because of its Google rating and trade focus: 5.0★ from 31 Google reviews, listed on Google as “Septic system service”.
Based in McKinney
53/100CR ScoreRanked #19 because of its Google rating and trade focus: 3.9★ from 37 Google reviews, listed on Google as “Septic system service”.
Based in Frisco, 13 mi away
53/100CR ScoreRanked #20 because of its Google rating and review volume: 4.9★ from 928 Google reviews.
Based in Anna, 15 mi away
53/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 49 Google reviews, listed on Google as “Septic system service”.
Based in Rockwall, 20 mi away
52/100CR ScoreRanked #22 because of its Google rating and review volume: 4.9★ from 263 Google reviews.
Based in McKinney
51/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.4★ from 77 Google reviews, listed on Google as “Plumber”.
Based in Princeton, 4 mi away
51/100CR ScoreRanked #24 because of its Google rating and availability: 5.0★ from 8 Google reviews, open 24/7.
Based in Addison, 20 mi away
51/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.9★ from 51 Google reviews, listed on Google as “Septic system service”.
All 45 septic service companies
#1 to #25 are shown in full above. Here are #26 to #45, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | JJM Septic | 51 | 4.4★ (7) | 8 mi |
| 27 | Frontline Septic Solutions LLC | 51 | 5.0★ (6) | 17 mi |
| 28 | ROD Septic Services | 51 | 4.3★ (92) | 15 mi |
| 29 | Kissee Inspection Services | 51 | 4.8★ (23) | 24 mi |
| 30 | Arms Septic Services | 50 | 4.6★ (9) | 15 mi |
| 31 | Mr. Rooter Plumbing of Rockwall | 50 | 4.7★ (79) | 21 mi |
| 32 | Shark Septic Service | 50 | 5.0★ (32) | 24 mi |
| 33 | Richardson Plumbing Sewer Air Conditioning Electrical & Air-Duct Cleaning Co | 49 | 3.9★ (22) | 19 mi |
| 34 | Bruce's Sewer & Drain Cleaning | 49 | 5.0★ (52) | 20 mi |
| 35 | First Choice Septic Service, LLC | 49 | 4.7★ (14) | 19 mi |
| 36 | Watermark Plumbing | 49 | 4.4★ (245) | 18 mi |
| 37 | PPM Plumbing | 48 | 5.0★ (16) | 19 mi |
| 38 | A Better Cleanout Septic Services | 48 | 3.7★ (6) | 15 mi |
| 39 | Prestige Plumbing and Sewer LLC | 48 | 5.0★ (6) | 5 mi |
| 40 | CMH Plumbing Solutions | 48 | 5.0★ (93) | 19 mi |
| 41 | All Around Septic and Dirt Work | 48 | 4.9★ (12) | 24 mi |
| 42 | White Eagle Water Systems | 48 | 4.1★ (52) | 23 mi |
| 43 | TAM Sewer & Drain Cleaning | 47 | 5.0★ (4) | 20 mi |
| 44 | AAA Septic Tanks, Inc. | 44 | 2.0★ (63) | 15 mi |
| 45 | Alert Drain & Sewer | 43 | 5.0★ (3) | 24 mi |
Also serving McKinney
12 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 |
|---|---|---|
| Elliott's Septic Service LLC | 24 mi | |
| Environmental Logistics Company, LLC | 4.5★ (2) | In McKinney |
| Excavation Services | 2.5★ (2) | 25 mi |
| green line septic | 23 mi | |
| Moore Supply Co. & FACETS | 4.4★ (45) | In McKinney |
| Morrison Septic Services | 5.0★ (2) | 19 mi |
| Mother Modern Plumbing, Sewer & Drain | 13 mi | |
| Plumber On Call of McKinney | 4.9★ (22) | In McKinney |
| Southwest Fluid Connectors Inc | 5.0★ (2) | 20 mi |
| Texas Green Plumbing | 17 mi | |
| The Sewer Inspection Company, LLC | 1.0★ (1) | 25 mi |
| United Septic & Maintenance | 5.0★ (2) | 18 mi |
How we ranked McKinney septic service companies
We scored 45 McKinney 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 McKinney 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 McKinney: frequently asked questions
Who is the best septic service company in McKinney?
By CR Score, the highest-ranked septic service company in McKinney, TX is Underwood Plumbing and Septic with a CR Score of 63/100. It has 4.9★ from 176 Google reviews. It is open 24/7. Royal Flush Septic, Inc. (#2) and HomeField Collin County (#3) follow. We ranked 45 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in McKinney?
ContractorsRanked ranks 45 septic service companies serving McKinney, TX. 4 of them are based in McKinney; the rest serve it from nearby towns. Another 12 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in McKinney are open 24/7?
16 ranked septic service companies in McKinney post 24/7 hours. The highest-ranked are Underwood Plumbing and Septic (#1), Royal Flush Septic, Inc. (#2) and Cantex Septic Pumping (#4). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in McKinney work on weekends?
26 of 45 ranked septic service companies post Saturday hours and 18 post Sunday hours. The highest-ranked open Saturdays are Underwood Plumbing and Septic (#1), Royal Flush Septic, Inc. (#2) and HomeField Collin County (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do McKinney septic service companies have?
The median Google rating among 45 rated septic service companies in McKinney is 4.9★, with a median of 51 reviews. Bacon Plumbing Heating Air Electric has the most, 7,092 reviews, and ranks #9. 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 McKinney count in this ranking?
Yes, if they are within 25 mi of the McKinney 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 McKinney
- November 2026: CR Scores recalculated for 45 septic service companies serving McKinney.
More septic service companies and McKinney pages
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