65/100CR Score
Ranked #1 because of its Google rating and trade focus: 5.0★ from 247 Google reviews, listed on Google as “Septic system service”.
Best Septic Service Companies in McDonough, GA (2026)
85 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in McDonough: Big Daddy's Septic Service, CR Score 65/100; 5.0★ from 247 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): TK & Sons Plumbing and Septic, posts 24/7 hours; ranked #2 of 85.
- 6
Most-reviewed: Bowen's Septic Tank, 2,960 Google reviews at 4.9★, the most of 85 ranked; ranked #6.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
85 McDonough septic service companies are ranked here by CR Score, from ten published factors. 53 are open 24/7, 72 open Saturdays and 64 open Sundays, based on posted hours. The median Google rating is 4.8★ across 85 rated businesses.
Top 10 septic service companies in McDonough at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Big Daddy's Septic Service | 65 | 5.0★ (247) | McDonough | 24/7 | Overall |
| 2 | TK & Sons Plumbing and Septic | 63 | 5.0★ (294) | Conyers, 10 mi away | 24/7 | Emergencies |
| 3 | Delta Plumbing The Educated Plumber Of Atlanta | 62 | 4.9★ (58) | McDonough | 24/7 | — |
| 4 | Delta Plumbing and Septic The Educated Plumber | 61 | 4.8★ (626) | McDonough | 24/7 | — |
| 5 | Pro Flow Rooter & Septic | 60 | 4.8★ (117) | Atlanta, 11 mi away | 24/7 | — |
| 6 | Bowen's Septic Tank | 59 | 4.9★ (2,960) | Conyers, 23 mi away | Sat | Most reviews |
| 7 | Georgia Rooter Plumbing & Septic, LLC | 59 | 4.9★ (171) | Peachtree City, 20 mi away | 24/7 | — |
| 8 | Acme Septic & Sewer | 59 | 5.0★ (20) | Stockbridge, 5 mi away | 24/7 | — |
| 9 | Metro Septic Pumping | 58 | 4.7★ (283) | Stockbridge, 7 mi away | Sat | — |
| 10 | Hart's Septic Services | 58 | 5.0★ (137) | Newnan, 21 mi away | 24/7 | — |
The 85 best septic service companies in McDonough, 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 Conyers, 10 mi away
63/100CR ScoreRanked #2 because of its Google rating and trade focus: 5.0★ from 294 Google reviews, listed on Google as “Septic system service”.
Based in McDonough
62/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 58 Google reviews, listed on Google as “Septic system service”.
Based in McDonough
61/100CR ScoreRanked #4 because of its Google rating and review volume: 4.8★ from 626 Google reviews.
Based in Atlanta, 11 mi away
60/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.8★ from 117 Google reviews, listed on Google as “Septic system service”.
Based in Conyers, 23 mi away
59/100CR ScoreRanked #6 because of its Google rating and review volume: 4.9★ from 2,960 Google reviews, the most in McDonough.
Based in Peachtree City, 20 mi away
59/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.9★ from 171 Google reviews, listed on Google as “Septic system service”.
Based in Stockbridge, 5 mi away
59/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Septic system service”.
Based in Stockbridge, 7 mi away
58/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.7★ from 283 Google reviews, listed on Google as “Septic system service”.
Based in Newnan, 21 mi away
58/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 137 Google reviews, listed on Google as “Septic system service”.
Based in Stockbridge, 10 mi away
58/100CR ScoreRanked #11 because of its Google rating and review volume: 4.7★ from 2,682 Google reviews.
Based in Fayetteville, 20 mi away
58/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.9★ from 343 Google reviews, listed on Google as “Septic system service”.
Based in McDonough
58/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.4★ from 32 Google reviews, listed on Google as “Septic system service”.
Based in Atlanta, 9 mi away
58/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.9★ from 130 Google reviews, listed on Google as “Septic system service”.
Based in Fayetteville, 22 mi away
58/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.9★ from 147 Google reviews, listed on Google as “Septic system service”.
Based in Peachtree City, 5 mi away
58/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Septic system service”.
Based in Fayetteville, 19 mi away
57/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.7★ from 146 Google reviews, listed on Google as “Septic system service”.
Based in Griffin, 11 mi away
57/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.3★ from 95 Google reviews, listed on Google as “Septic system service”.
Based in Newnan, 17 mi away
57/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 41 Google reviews, listed on Google as “Septic system service”.
Based in Stockbridge, 7 mi away
57/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.7★ from 12 Google reviews, listed on Google as “Septic system service”.
Based in Peachtree City, 8 mi away
57/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.3★ from 17 Google reviews, listed on Google as “Septic system service”.
Based in Conyers, 16 mi away
56/100CR ScoreRanked #22 because of its Google rating and review volume: 4.7★ from 2,395 Google reviews.
Based in Griffin, 17 mi away
56/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.7★ from 110 Google reviews, listed on Google as “Septic system service”.
Based in Covington, 13 mi away
56/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 76 Google reviews, listed on Google as “Septic system service”.
Based in Atlanta, 8 mi away
56/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.5★ from 8 Google reviews, listed on Google as “Septic system service”.
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 85 ranked septic service companies here; the rest are on their profiles.
Also serving McDonough
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 |
|---|---|---|
| A Plus Heating Cooling, Plumbing & Septic | 22 mi | |
| A Pump Away | 19 mi | |
| APump Away | 3.0★ (2) | 23 mi |
| Bare Essentials LLC | 15 mi | |
| C. Brown Plumbing Solution Inc. | 3.5★ (2) | 16 mi |
| Clog Doctor | 19 mi | |
| Covington septic solutions | 3.0★ (2) | 14 mi |
| Dr Septic Plumbing | 20 mi | |
| Georgia Plumbing and Septic Conyers | 14 mi | |
| Griffin's Sewer & Drain | 4.0★ (1) | 17 mi |
| Henry County Septic Service | 2 mi | |
| New Generation Septic & Plumbing | 22 mi | |
| Rylander X.P. | 5.0★ (2) | 21 mi |
| Seabolt Construction | 5.0★ (2) | 18 mi |
| Septic Works LLC | 5.0★ (2) | 15 mi |
| Soto G Plumbing | 14 mi | |
| Sunnyside Septic | 5.0★ (1) | 16 mi |
| Supreme rooter and septic llc | 14 mi | |
| Technology Sewer & Drain Inc | 5.0★ (1) | 20 mi |
| Vaughn Plumbing & Septic Solutions | 5.0★ (1) | 17 mi |
How we ranked McDonough septic service companies
We scored 85 McDonough 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 McDonough 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 McDonough: frequently asked questions
Who is the best septic service company in McDonough?
By CR Score, the highest-ranked septic service company in McDonough, GA is Big Daddy's Septic Service with a CR Score of 65/100. It has 5.0★ from 247 Google reviews. It is open 24/7. TK & Sons Plumbing and Septic (#2) and Delta Plumbing The Educated Plumber Of Atlanta (#3) follow. We ranked 85 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in McDonough?
ContractorsRanked ranks 85 septic service companies serving McDonough, GA. 10 of them are based in McDonough; 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 McDonough are open 24/7?
53 ranked septic service companies in McDonough post 24/7 hours. The highest-ranked are Big Daddy's Septic Service (#1), TK & Sons Plumbing and Septic (#2) and Delta Plumbing The Educated Plumber Of Atlanta (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in McDonough work on weekends?
72 of 85 ranked septic service companies post Saturday hours and 64 post Sunday hours. The highest-ranked open Saturdays are Big Daddy's Septic Service (#1), TK & Sons Plumbing and Septic (#2) and Delta Plumbing The Educated Plumber Of Atlanta (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do McDonough septic service companies have?
The median Google rating among 85 rated septic service companies in McDonough is 4.8★, with a median of 37 reviews. Bowen's Septic Tank has the most, 2,960 reviews, and ranks #6. 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 McDonough count in this ranking?
Yes, if they are within 25 mi of the McDonough 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 McDonough
- November 2026: CR Scores recalculated for 85 septic service companies serving McDonough.
More septic service companies and McDonough pages
Septic service companies near McDonough
- Septic service companies in Stockbridge, GA117 ranked
- Septic service companies in Griffin, GA59 ranked
- Septic service companies in Conyers, GA123 ranked
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- Septic service companies in Fayetteville, GA95 ranked
- Septic service companies in Stonecrest, GA137 ranked
- Septic service companies in Covington, GA71 ranked
- Septic service companies in Redan, GA142 ranked
- Septic service companies in Candler-McAfee, GA147 ranked
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