60/100CR Score
Ranked #1 because of its Google rating and trade focus: 5.0★ from 887 Google reviews, listed on Google as “Septic system service”.
Best Septic Service Companies in Olney, MD (2026)
55 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Olney: King & Sons Septic Service, LLC, CR Score 60/100; 5.0★ from 887 Google reviews.
- 2
Best for emergencies (open 24/7): Jet Septic and Plumbing Services, posts 24/7 hours; ranked #2 of 55.
- 8
Most-reviewed: Prime Plumbing, 2,323 Google reviews at 4.8★, the most of 55 ranked; ranked #8.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
55 Olney septic service companies are ranked here by CR Score, from ten published factors. 22 are open 24/7, 37 open Saturdays and 27 open Sundays, based on posted hours. The median Google rating is 4.8★ across 55 rated businesses.
Top 10 septic service companies in Olney at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | King & Sons Septic Service, LLC | 60 | 5.0★ (887) | Gaithersburg, 8 mi away | — | Overall |
| 2 | Jet Septic and Plumbing Services | 60 | 5.0★ (321) | Westminster, 22 mi away | 24/7 | Emergencies |
| 3 | Fyock Septic Services | 56 | 4.2★ (16) | Columbia, 9 mi away | 24/7 | — |
| 4 | RS Plumbing LLC | 56 | 5.0★ (51) | Davidsonville, 25 mi away | 24/7 | — |
| 5 | Environmental Septic | 56 | 4.9★ (98) | Damascus, 8 mi away | — | — |
| 6 | Fogle's Septic | 55 | 4.0★ (184) | Eldersburg, 17 mi away | 24/7 | — |
| 7 | Sewer Slayer | 55 | 5.0★ (157) | Arbutus, 20 mi away | 24/7 | — |
| 8 | Prime Plumbing | 55 | 4.8★ (2,323) | Glen Burnie, 25 mi away | 24/7 | Most reviews |
| 9 | Leigh & Sons Liquid Waste Removal | 55 | 5.0★ (4) | North Potomac, 11 mi away | 24/7 | — |
| 10 | B & P Environmental, A Wind River Company | 55 | 5.0★ (19) | Crofton, 22 mi away | 24/7 | — |
The 55 best septic service companies in Olney, 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 Westminster, 22 mi away
60/100CR ScoreRanked #2 because of its Google rating and trade focus: 5.0★ from 321 Google reviews, listed on Google as “Septic system service”.
Based in Columbia, 9 mi away
56/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.2★ from 16 Google reviews, listed on Google as “Septic system service”.
Based in Davidsonville, 25 mi away
56/100CR ScoreRanked #4 because of its Google rating and trade focus: 5.0★ from 51 Google reviews, listed on Google as “Septic system service”.
Based in Damascus, 8 mi away
56/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.9★ from 98 Google reviews, listed on Google as “Septic system service”.
Based in Eldersburg, 17 mi away
55/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.0★ from 184 Google reviews, listed on Google as “Septic system service”.
#7 Sewer Slayer
Based in Arbutus, 20 mi away
55/100CR ScoreRanked #7 because of its Google rating and trade focus: 5.0★ from 157 Google reviews, listed on Google as “Plumber”.
Based in Glen Burnie, 25 mi away
55/100CR ScoreRanked #8 because of its Google rating and review volume: 4.8★ from 2,323 Google reviews, the most in Olney.
Based in North Potomac, 11 mi away
55/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Septic system service”.
Based in Crofton, 22 mi away
55/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 19 Google reviews, listed on Google as “Septic system service”.
Based in Sterling, 22 mi away
55/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.2★ from 136 Google reviews, listed on Google as “Septic system service”.
Based in Eldersburg, 20 mi away
55/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.6★ from 22 Google reviews, listed on Google as “Septic system service”.
Based in Washington, D.C., 19 mi away
54/100CR ScoreRanked #13 because of its Google rating and review volume: 4.9★ from 484 Google reviews.
#14 Your 1 Plumber
Based in Germantown, 12 mi away
54/100CR ScoreRanked #14 because of its Google rating and review volume: 4.6★ from 314 Google reviews.
#15 Rooter-Man
Based in Silver Spring, 3 mi away
54/100CR ScoreRanked #15 because of its Google rating and review volume: 5.0★ from 63 Google reviews.
Based in Washington, D.C., 19 mi away
54/100CR ScoreRanked #16 because of its Google rating and review volume: 4.9★ from 269 Google reviews.
Based in Arlington, 20 mi away
53/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.8★ from 80 Google reviews, listed on Google as “Plumber”.
Based in Baltimore, 22 mi away
53/100CR ScoreRanked #18 because of its Google rating and review volume: 4.8★ from 1,366 Google reviews.
Based in Ashton-Sandy Spring, 3 mi away
53/100CR ScoreRanked #19 because of its Google rating and review volume: 4.8★ from 464 Google reviews.
Based in South Bel Air, 24 mi away
53/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.6★ from 10 Google reviews, listed on Google as “Septic system service”.
Based in Alexandria, 21 mi away
52/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 41 Google reviews, listed on Google as “Plumber”.
Based in Germantown, 6 mi away
52/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.4★ from 13 Google reviews, listed on Google as “Septic system service”.
Based in Eldersburg, 19 mi away
52/100CR ScoreRanked #23 because of its Google rating and trade focus: 3.7★ from 3 Google reviews, listed on Google as “Septic system service”.
Based in Damascus, 12 mi away
52/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.6★ from 10 Google reviews, listed on Google as “Plumber”.
Based in Ferndale, 15 mi away
52/100CR ScoreRanked #25 because of its Google rating and review volume: 5.0★ from 109 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 55 ranked septic service companies here; the rest are on their profiles.
Also serving Olney
19 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 | 20 mi | |
| AITS Septic Repair Services | 21 mi | |
| B&C Sewer and Drains Inc | 24 mi | |
| Baltimore | 22 mi | |
| Clinton Sewer Expert, Inc. | 17 mi | |
| J & L Plumbing | 5.0★ (2) | 24 mi |
| King & Sons Inc LLC | 1.0★ (1) | 4 mi |
| Lee's Septic Tank Services | 24 mi | |
| Maryland sewer and drain pros | 12 mi | |
| Monticello Well Pump Services | 5.0★ (2) | 25 mi |
| Murray Underground Services | 5.0★ (1) | 21 mi |
| Nova Liquid Enviornmental | 22 mi | |
| Plumbing - Clogged Drains & Sewer Pipes | 5.0★ (1) | 3 mi |
| Rei Drayco | 3.0★ (1) | 24 mi |
| Rocket Rooter Plumbing | 3.0★ (2) | 9 mi |
| Septic Locator | 23 mi | |
| Severn Septic Service | 18 mi | |
| Top Tier Trenchless Sewer and Water Line Repair | 5.0★ (1) | 9 mi |
| Virginia Septic | 5.0★ (2) | 25 mi |
How we ranked Olney septic service companies
We scored 55 Olney 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 Olney 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 Olney: frequently asked questions
Who is the best septic service company in Olney?
By CR Score, the highest-ranked septic service company in Olney, MD is King & Sons Septic Service, LLC with a CR Score of 60/100. It has 5.0★ from 887 Google reviews. Jet Septic and Plumbing Services (#2) and Fyock Septic Services (#3) follow. We ranked 55 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Olney?
ContractorsRanked ranks 55 septic service companies serving Olney, MD. Another 19 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Olney are open 24/7?
22 ranked septic service companies in Olney post 24/7 hours. The highest-ranked are Jet Septic and Plumbing Services (#2), Fyock Septic Services (#3) and RS Plumbing LLC (#4). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Olney work on weekends?
37 of 55 ranked septic service companies post Saturday hours and 27 post Sunday hours. The highest-ranked open Saturdays are Jet Septic and Plumbing Services (#2), Fyock Septic Services (#3) and RS Plumbing LLC (#4). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Olney septic service companies have?
The median Google rating among 55 rated septic service companies in Olney is 4.8★, with a median of 33 reviews. Prime Plumbing has the most, 2,323 reviews, and ranks #8. 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 Olney count in this ranking?
Yes, if they are within 25 mi of the Olney 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 Olney
- November 2026: CR Scores recalculated for 55 septic service companies serving Olney.
- November 2026: 1 duplicate listing merged.
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