61/100CR Score
Ranked #1 because of its Google rating and trade focus: 5.0★ from 321 Google reviews, listed on Google as “Septic system service”.
Best Septic Service Companies in Columbia, MD (2026)
84 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Columbia: Jet Septic and Plumbing Services, CR Score 61/100; 5.0★ from 321 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): A-1 Septic, posts 24/7 hours; ranked #2 of 84.
- 6
Most-reviewed: Prime Plumbing, 2,323 Google reviews at 4.8★, the most of 84 ranked; ranked #6.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
84 Columbia septic service companies are ranked here by CR Score, from ten published factors. 34 are open 24/7, 52 open Saturdays and 40 open Sundays, based on posted hours. The median Google rating is 4.9★ across 84 rated businesses.
Top 10 septic service companies in Columbia at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Jet Septic and Plumbing Services | 61 | 5.0★ (321) | Westminster, 18 mi away | 24/7 | Overall |
| 2 | A-1 Septic | 60 | 4.9★ (282) | Pasadena, 20 mi away | 24/7 | Emergencies |
| 3 | A & V Septic Services LLC | 60 | 4.9★ (210) | Pasadena, 18 mi away | 24/7 | — |
| 4 | Fyock Septic Services | 59 | 4.2★ (16) | Columbia | 24/7 | — |
| 5 | Sewer Slayer | 58 | 5.0★ (157) | Arbutus, 8 mi away | 24/7 | — |
| 6 | Prime Plumbing | 58 | 4.8★ (2,323) | Glen Burnie, 14 mi away | 24/7 | Most reviews |
| 7 | Shilling septic | 58 | 5.0★ (103) | Baltimore, 23 mi away | 24/7 | — |
| 8 | King & Sons Septic Service, LLC | 58 | 5.0★ (887) | Gaithersburg, 18 mi away | — | — |
| 9 | Mr. Rooter Plumbing of Greater Baltimore | 57 | 4.8★ (1,366) | Baltimore, 9 mi away | Sat · Sun · Evenings | — |
| 10 | RS Plumbing LLC | 57 | 5.0★ (51) | Davidsonville, 22 mi away | 24/7 | — |
The 84 best septic service companies in Columbia, 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.
#2 A-1 Septic
Based in Pasadena, 20 mi away
60/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 282 Google reviews, listed on Google as “Septic system service”.
Based in Pasadena, 18 mi away
60/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 210 Google reviews, listed on Google as “Septic system service”.
Based in Columbia
59/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.2★ from 16 Google reviews, listed on Google as “Septic system service”.
#5 Sewer Slayer
Based in Arbutus, 8 mi away
58/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 157 Google reviews, listed on Google as “Plumber”.
Based in Glen Burnie, 14 mi away
58/100CR ScoreRanked #6 because of its Google rating and review volume: 4.8★ from 2,323 Google reviews, the most in Columbia.
Based in Baltimore, 23 mi away
58/100CR ScoreRanked #7 because of its Google rating and trade focus: 5.0★ from 103 Google reviews, listed on Google as “Septic system service”.
Based in Gaithersburg, 18 mi away
58/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 887 Google reviews, listed on Google as “Septic system service”.
Based in Baltimore, 9 mi away
57/100CR ScoreRanked #9 because of its Google rating and review volume: 4.8★ from 1,366 Google reviews.
#10 RS Plumbing LLC
Based in Davidsonville, 22 mi away
57/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 51 Google reviews, listed on Google as “Septic system service”.
#11 Fogle's Septic
Based in Eldersburg, 12 mi away
56/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.0★ from 184 Google reviews, listed on Google as “Septic system service”.
Based in Westminster, 21 mi away
56/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.9★ from 1,057 Google reviews, listed on Google as “Septic system service”.
Based in Crofton, 17 mi away
56/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 19 Google reviews, listed on Google as “Septic system service”.
Based in Eldersburg, 16 mi away
55/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.6★ from 22 Google reviews, listed on Google as “Septic system service”.
Based in South Bel Air, 14 mi away
55/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.6★ from 10 Google reviews, listed on Google as “Septic system service”.
Based in Ferndale, 3 mi away
55/100CR ScoreRanked #16 because of its Google rating and review volume: 5.0★ from 109 Google reviews.
Based in Pasadena, 18 mi away
55/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Septic system service”.
#18 Mahon Plumbing
Based in Baltimore, 16 mi away
54/100CR ScoreRanked #18 because of its Google rating and review volume: 4.9★ from 268 Google reviews.
#19 Abend Services
Based in Baltimore, 12 mi away
54/100CR ScoreRanked #19 because of its Google rating and review volume: 4.8★ from 175 Google reviews.
Based in Pasadena, 19 mi away
54/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.3★ from 13 Google reviews, listed on Google as “Septic system service”.
#21 Globe Sanitation
Based in Baltimore, 3 mi away
54/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 14 Google reviews, listed on Google as “Septic system service”.
Based in Baltimore, 11 mi away
54/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.6★ from 93 Google reviews, listed on Google as “Septic system service”.
Based in Pasadena, 22 mi away
53/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.7★ from 12 Google reviews, listed on Google as “Septic system service”.
#24 Howard Plumbing
Based in Annapolis, 24 mi away
53/100CR ScoreRanked #24 because of its Google rating and review volume: 4.9★ from 521 Google reviews.
Based in Washington, D.C., 24 mi away
53/100CR ScoreRanked #25 because of its Google rating and review volume: 4.9★ from 484 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 84 ranked septic service companies here; the rest are on their profiles.
Also serving Columbia
16 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 |
|---|---|---|
| Accurate Environmental Services | 17 mi | |
| Baltimore | 12 mi | |
| Beetle Bayly Services | 1.0★ (1) | 23 mi |
| Clinton Sewer Expert, Inc. | 22 mi | |
| Constipated Drain Sewer | 3.0★ (1) | 18 mi |
| Electric EEL Sewer & Drain Cleaning | 25 mi | |
| King & Sons Inc LLC | 1.0★ (1) | 17 mi |
| Maryland sewer and drain pros | 20 mi | |
| MB Matthews Septic Service LLC | 5.0★ (1) | 15 mi |
| Pasadena Septic Service | 20 mi | |
| Plumbing - Clogged Drains & Sewer Pipes | 5.0★ (1) | 14 mi |
| Rocket Rooter Plumbing | 3.0★ (2) | 23 mi |
| Severn Septic Service | 10 mi | |
| The Home Depot | 4.0★ (1,869) | In Columbia |
| Top Tier Trenchless Sewer and Water Line Repair | 5.0★ (1) | 21 mi |
| Ultimate Septic & Construction | 16 mi |
How we ranked Columbia septic service companies
We scored 84 Columbia 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 Columbia 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 Columbia: frequently asked questions
Who is the best septic service company in Columbia?
By CR Score, the highest-ranked septic service company in Columbia, MD is Jet Septic and Plumbing Services with a CR Score of 61/100. It has 5.0★ from 321 Google reviews. It is open 24/7. A-1 Septic (#2) and A & V Septic Services LLC (#3) follow. We ranked 84 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Columbia?
ContractorsRanked ranks 84 septic service companies serving Columbia, MD. 1 of them is based in Columbia; the rest serve it from nearby towns. Another 16 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Columbia are open 24/7?
34 ranked septic service companies in Columbia post 24/7 hours. The highest-ranked are Jet Septic and Plumbing Services (#1), A-1 Septic (#2) and A & V Septic Services LLC (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Columbia work on weekends?
52 of 84 ranked septic service companies post Saturday hours and 40 post Sunday hours. The highest-ranked open Saturdays are Jet Septic and Plumbing Services (#1), A-1 Septic (#2) and A & V Septic Services LLC (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Columbia septic service companies have?
The median Google rating among 84 rated septic service companies in Columbia is 4.9★, with a median of 22 reviews. Prime Plumbing has the most, 2,323 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 Columbia count in this ranking?
Yes, if they are within 25 mi of the Columbia 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 Columbia
- November 2026: CR Scores recalculated for 84 septic service companies serving Columbia.
- November 2026: 1 duplicate listing merged.
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