Ranked #1 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.
47 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Oak Hill: Five Star Septic Inc., CR Score 58/100; 4.2★ from 136 Google reviews; open 24/7.
Best for emergencies (open 24/7): Shilling Septic, posts 24/7 hours; ranked #3 of 47.
Most-reviewed: My Plumber Plus, 7,642 Google reviews at 4.7★, the most of 47 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
47 Oak Hill septic service companies are ranked here by CR Score, from ten published factors. 15 are open 24/7, 29 open Saturdays and 21 open Sundays, based on posted hours. The median Google rating is 4.9★ across 47 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Five Star Septic Inc. | 58 | 4.2★ (136) | Sterling, 3 mi away | 24/7 | Overall |
| 2 | My Plumber Plus | 57 | 4.7★ (7,642) | Manassas, 10 mi away | Sat · Sun · Evenings | Most reviews |
| 3 | Shilling Septic | 56 | 4.6★ (19) | Lake Shore, 12 mi away | 24/7 | Emergencies |
| 4 | Loudoun Environmental Treatment | 56 | 4.6★ (147) | Purcellville, 22 mi away | 24/7 | — |
| 5 | Home Service Pros - Quality Sewer & Drain | 55 | 5.0★ (181) | Springfield, 17 mi away | 24/7 | — |
| 6 | King & Sons Septic Service, LLC | 55 | 5.0★ (887) | Gaithersburg, 24 mi away | — | — |
| 7 | United Rentals - Reliable Onsite Services | 55 | 5.0★ (93) | Manassas Park, 10 mi away | — | — |
| 8 | United Site Services | 54 | 4.7★ (70) | Gainesville, 14 mi away | Sat · Evenings | — |
| 9 | Home Service Pros - Quality Sewer & Drain | 54 | 4.8★ (80) | Arlington, 15 mi away | 24/7 | — |
| 10 | Broke Brothers | 54 | 5.0★ (25) | Leesburg, 13 mi away | Sat · Evenings | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Ranked #1 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 Manassas, 10 mi away
Ranked #2 because of its Google rating and review volume: 4.7★ from 7,642 Google reviews, the most in Oak Hill.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lake Shore, 12 mi away
Ranked #3 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.
Based in Purcellville, 22 mi away
Ranked #4 because of its Google rating and trade focus: 4.6★ from 147 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Springfield, 17 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 181 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Gaithersburg, 24 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 887 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Manassas Park, 10 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 93 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Gainesville, 14 mi away
Ranked #8 because of its Google rating and trade focus: 4.7★ from 70 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Arlington, 15 mi away
Ranked #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 Leesburg, 13 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 25 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, 15 mi away
Ranked #11 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 Manassas, 14 mi away
Ranked #12 because of its Google rating and trade focus: 4.8★ from 151 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Linton Hall, 22 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 35 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Alexandria, 16 mi away
Ranked #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.
Based in Manassas, 13 mi away
Ranked #15 because of its Google rating and review volume: 4.9★ from 1,169 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Manassas, 17 mi away
Ranked #16 because of its Google rating and review volume: 4.9★ from 687 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fairfax, 7 mi away
Ranked #17 because of its Google rating and trade focus: 4.8★ from 24 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Herndon, 5 mi away
Ranked #18 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 Eldersburg, 12 mi away
Ranked #19 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 Damascus, 18 mi away
Ranked #20 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 Burke, 9 mi away
Ranked #21 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 Dale City, 18 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 7 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., 22 mi away
Ranked #23 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 Edgewood, 12 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Manassas, 14 mi away
Ranked #25 because of its Google rating and trade focus: 4.4★ from 168 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#1 to #25 are shown in full above. Here are #26 to #47, in CR Score order; each links to its profile.
18 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) | 10 mi |
| Adams-Liming Septic Tank Services | 20 mi | |
| AITS Septic Repair Services | 3 mi | |
| Aits Septic Services Inc | 3.0★ (1) | 18 mi |
| American Septic Services | 5.0★ (2) | 18 mi |
| EA Plumbing - Residential Plumbing Repair Contractor, Pipe and Sewer Repair in Manassas, VA | 5.0★ (1) | 13 mi |
| Hoovers Tank and Drain | 5.0★ (1) | 12 mi |
| J & L Plumbing | 5.0★ (2) | 12 mi |
| King & Sons Inc LLC | 1.0★ (1) | 20 mi |
| Monticello Well Pump Services | 5.0★ (2) | 1 mi |
| Nova Liquid Enviornmental | 4 mi | |
| Plumbing - Clogged Drains & Sewer Pipes | 5.0★ (1) | 23 mi |
| Rocket Rooter Plumbing | 3.0★ (2) | 15 mi |
| Septic Locator | 21 mi | |
| Top Tier Trenchless Sewer and Water Line Repair | 5.0★ (1) | 19 mi |
| topsoil | 20 mi | |
| Vienna Septic Tank Services | 3.0★ (2) | 8 mi |
| Virginia Septic | 5.0★ (2) | 7 mi |
We scored 47 Oak Hill 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 Oak Hill 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 |