61/100CR Score
Ranked #1 because of its Google rating and review volume: 5.0★ from 887 Google reviews, the most in Rockville.
Based on 8 of 10 factors; credentials and recency not yet collected.
Best Septic Service Companies in Rockville, MD (2026)
52 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Rockville: King & Sons Septic Service, LLC, CR Score 61/100; 5.0★ from 887 Google reviews.
- 2
Best for emergencies (open 24/7): Five Star Septic Inc., posts 24/7 hours; ranked #2 of 52.
- 5
Most-reviewed: The Drain Fighter - Jetting & Drain Cleaning, 484 Google reviews at 4.9★, the most of 52 ranked after King & Sons Septic Service, LLC; ranked #5.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
52 Rockville septic service companies are ranked here by CR Score, from ten published factors. 19 are open 24/7, 33 open Saturdays and 23 open Sundays, based on posted hours. The median Google rating is 4.8★ across 52 rated businesses.
Top 10 septic service companies in Rockville at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | King & Sons Septic Service, LLC | 61 | 5.0★ (887) | Gaithersburg, 10 mi away | — | Overall |
| 2 | Five Star Septic Inc. | 57 | 4.2★ (136) | Sterling, 16 mi away | 24/7 | Emergencies |
| 3 | Environmental Septic | 57 | 4.9★ (98) | Damascus, 5 mi away | — | — |
| 4 | Leigh & Sons Liquid Waste Removal | 57 | 5.0★ (4) | North Potomac, 6 mi away | 24/7 | — |
| 5 | The Drain Fighter - Jetting & Drain Cleaning | 56 | 4.9★ (484) | Washington, D.C., 18 mi away | 24/7 | Most reviews |
| 6 | Your 1 Plumber | 56 | 4.6★ (314) | Germantown, 9 mi away | 24/7 | — |
| 7 | Home Service Pros - Quality Sewer & Drain | 56 | 5.0★ (181) | Springfield, 24 mi away | 24/7 | — |
| 8 | District Capital Services LLC | 56 | 4.9★ (269) | Washington, D.C., 16 mi away | 24/7 | — |
| 9 | Home Service Pros - Quality Sewer & Drain | 56 | 4.8★ (80) | Arlington, 15 mi away | 24/7 | — |
| 10 | Fyock Septic Services | 56 | 4.2★ (16) | Columbia, 15 mi away | 24/7 | — |
The 52 best septic service companies in Rockville, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Sterling, 16 mi away
57/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.2★ from 136 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Damascus, 5 mi away
57/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 98 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in North Potomac, 6 mi away
57/100CR ScoreRanked #4 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Washington, D.C., 18 mi away
56/100CR ScoreRanked #5 because of its Google rating and review volume: 4.9★ from 484 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Germantown, 9 mi away
56/100CR ScoreRanked #6 because of its Google rating and review volume: 4.6★ from 314 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Springfield, 24 mi away
56/100CR ScoreRanked #7 because of its Google rating and review volume: 5.0★ from 181 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Washington, D.C., 16 mi away
56/100CR ScoreRanked #8 because of its Google rating and review volume: 4.9★ from 269 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Arlington, 15 mi away
56/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.8★ from 80 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Columbia, 15 mi away
56/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.2★ from 16 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#11 Shilling Septic
Based in Lake Shore, 20 mi away
55/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.6★ from 19 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#12 Fogle's Septic
Based in Eldersburg, 23 mi away
55/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.0★ from 184 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Crofton, 25 mi away
55/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 19 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Alexandria, 17 mi away
55/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 41 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#15 Rooter-Man
Based in Silver Spring, 6 mi away
54/100CR ScoreRanked #15 because of its Google rating and review volume: 5.0★ from 63 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
#16 B.L. James & Son
Based in Arlington, 14 mi away
54/100CR ScoreRanked #16 because of its Google rating and review volume: 4.9★ from 383 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ashton-Sandy Spring, 9 mi away
53/100CR ScoreRanked #17 because of its Google rating and review volume: 4.8★ from 464 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Alexandria, 20 mi away
53/100CR ScoreRanked #18 because of its Google rating and review volume: 4.7★ from 159 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bel Air North, 5 mi away
53/100CR ScoreRanked #19 because of its Google rating and availability: 4.5★ from 19 Google reviews, open 24/7.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Germantown, 9 mi away
52/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.4★ from 13 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bowie, 21 mi away
52/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.7★ from 31 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Burke, 19 mi away
52/100CR ScoreRanked #22 because of its Google rating and review volume: 4.8★ from 464 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
#23 Sams Creek
Based in Eldersburg, 20 mi away
52/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.9★ from 41 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Herndon, 14 mi away
52/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.8★ from 45 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Damascus, 15 mi away
52/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.6★ from 10 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
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 52 ranked septic service companies here; the rest are on their profiles.
Also serving Rockville
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 |
|---|---|---|
| Abbott's Septic Repair | 5.0★ (2) | 24 mi |
| Accurate Environmental Services | 23 mi | |
| AITS Septic Repair Services | 15 mi | |
| B&C Sewer and Drains Inc | 21 mi | |
| Clinton Sewer Expert, Inc. | 16 mi | |
| J & L Plumbing | 5.0★ (2) | 18 mi |
| King & Sons Inc LLC | 1.0★ (1) | In Rockville |
| Lee's Septic Tank Services | 22 mi | |
| Maryland sewer and drain pros | 15 mi | |
| Monticello Well Pump Services | 5.0★ (2) | 18 mi |
| Murray Underground Services | 5.0★ (1) | 21 mi |
| Nova Liquid Enviornmental | 16 mi | |
| Plumbing - Clogged Drains & Sewer Pipes | 5.0★ (1) | 6 mi |
| Rei Drayco | 3.0★ (1) | 23 mi |
| Rocket Rooter Plumbing | 3.0★ (2) | 3 mi |
| Septic Locator | 20 mi | |
| Severn Septic Service | 23 mi | |
| Top Tier Trenchless Sewer and Water Line Repair | 5.0★ (1) | 7 mi |
| Vienna Septic Tank Services | 3.0★ (2) | 24 mi |
| Virginia Septic | 5.0★ (2) | 18 mi |
How we ranked Rockville septic service companies
We scored 52 Rockville 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 Rockville 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 Rockville: frequently asked questions
Who is the best septic service company in Rockville?
By CR Score, the highest-ranked septic service company in Rockville, MD is King & Sons Septic Service, LLC with a CR Score of 61/100. It has 5.0★ from 887 Google reviews. Five Star Septic Inc. (#2) and Environmental Septic (#3) follow. We ranked 52 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Rockville?
ContractorsRanked ranks 52 septic service companies serving Rockville, MD. Another 20 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Rockville are open 24/7?
19 ranked septic service companies in Rockville post 24/7 hours. The highest-ranked are Five Star Septic Inc. (#2), Leigh & Sons Liquid Waste Removal (#4) and The Drain Fighter - Jetting & Drain Cleaning (#5). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Rockville work on weekends?
33 of 52 ranked septic service companies post Saturday hours and 23 post Sunday hours. The highest-ranked open Saturdays are Five Star Septic Inc. (#2), Leigh & Sons Liquid Waste Removal (#4) and The Drain Fighter - Jetting & Drain Cleaning (#5). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Rockville septic service companies have?
The median Google rating among 52 rated septic service companies in Rockville is 4.8★, with a median of 25 reviews. King & Sons Septic Service, LLC has the most, 887 reviews, and ranks #1. 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 Rockville count in this ranking?
Yes, if they are within 25 mi of the Rockville 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 Rockville
- November 2026: CR Scores recalculated for 52 septic service companies serving Rockville.
- November 2026: 1 duplicate listing merged.
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