59/100CR Score
Ranked #1 because of its Google rating and review volume: 4.7★ from 7,642 Google reviews, the most in Manassas Park.
Best Septic Service Companies in Manassas Park, VA (2026)
38 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Manassas Park: My Plumber Plus, CR Score 59/100; 4.7★ from 7,642 Google reviews; open 7 days a week.
- 3
Best for emergencies (open 24/7): Haynes Plumbing Sewer and Water Services, posts 24/7 hours; ranked #3 of 38.
- 11
Most-reviewed: Marines Service Co., 1,169 Google reviews at 4.9★, the most of 38 ranked after My Plumber Plus; ranked #11.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
38 Manassas Park septic service companies are ranked here by CR Score, from ten published factors. 12 are open 24/7, 25 open Saturdays and 17 open Sundays, based on posted hours. The median Google rating is 4.8★ across 38 rated businesses.
Top 10 septic service companies in Manassas Park at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | My Plumber Plus | 59 | 4.7★ (7,642) | Manassas, 2 mi away | Sat · Sun · Evenings | Overall |
| 2 | United Rentals - Reliable Onsite Services | 57 | 5.0★ (93) | Manassas Park | — | — |
| 3 | Haynes Plumbing Sewer and Water Services | 56 | 4.9★ (844) | Aquia Harbour, 22 mi away | 24/7 | Emergencies |
| 4 | Advantage Septic Service | 56 | 4.8★ (151) | Manassas, 5 mi away | — | — |
| 5 | Home Service Pros - Quality Sewer & Drain | 56 | 5.0★ (181) | Springfield, 15 mi away | 24/7 | — |
| 6 | Five Star Septic Inc. | 56 | 4.2★ (136) | Sterling, 14 mi away | 24/7 | — |
| 7 | United Site Services | 56 | 4.7★ (70) | Gainesville, 7 mi away | Sat · Evenings | — |
| 8 | Shilling Septic | 56 | 4.6★ (19) | Lake Shore, 13 mi away | 24/7 | — |
| 9 | All American Jetting & Drain Services | 55 | 4.9★ (687) | Manassas, 6 mi away | Sat · Sun · Evenings | — |
| 10 | Extreme PSI, LLC | 55 | 5.0★ (35) | Linton Hall, 14 mi away | Sat · Sun | — |
The 38 best septic service companies in Manassas Park, 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 Manassas Park
57/100CR ScoreRanked #2 because of its Google rating and trade focus: 5.0★ from 93 Google reviews, listed on Google as “Septic system service”.
Based in Aquia Harbour, 22 mi away
56/100CR ScoreRanked #3 because of its Google rating and review volume: 4.9★ from 844 Google reviews.
Based in Manassas, 5 mi away
56/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.8★ from 151 Google reviews, listed on Google as “Septic system service”.
Based in Springfield, 15 mi away
56/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 181 Google reviews, listed on Google as “Plumber”.
Based in Sterling, 14 mi away
56/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.2★ from 136 Google reviews, listed on Google as “Septic system service”.
Based in Gainesville, 7 mi away
56/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.7★ from 70 Google reviews, listed on Google as “Septic system service”.
Based in Lake Shore, 13 mi away
56/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.6★ from 19 Google reviews, listed on Google as “Septic system service”.
Based in Manassas, 6 mi away
55/100CR ScoreRanked #9 because of its Google rating and review volume: 4.9★ from 687 Google reviews.
#10 Extreme PSI, LLC
Based in Linton Hall, 14 mi away
55/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 35 Google reviews, listed on Google as “Septic system service”.
Based in Manassas, 5 mi away
55/100CR ScoreRanked #11 because of its Google rating and review volume: 4.9★ from 1,169 Google reviews.
#12 Broke Brothers
Based in Leesburg, 10 mi away
54/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “Septic system service”.
Based in Manassas, 5 mi away
54/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.4★ from 168 Google reviews, listed on Google as “Septic system service”.
#14 Mr. Septic Corp
Based in Ashburn, 25 mi away
54/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.8★ from 35 Google reviews, listed on Google as “Septic system service”.
#15 Septic star dmv
Based in Dale City, 11 mi away
54/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Septic system service”.
#16 Ace Contracting
Based in Manassas, 17 mi away
53/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Septic system service”.
Based in Arlington, 19 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 Manassas, 4 mi away
52/100CR ScoreRanked #18 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Septic system service”.
Based in Alexandria, 20 mi away
52/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 41 Google reviews, listed on Google as “Plumber”.
#20 Sams Creek
Based in Eldersburg, 13 mi away
52/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.9★ from 41 Google reviews, listed on Google as “Septic system service”.
Based in Fairfax, 9 mi away
52/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.8★ from 24 Google reviews, listed on Google as “Septic system service”.
#22 SeptiClean Inc
Based in Manassas, 4 mi away
52/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.1★ from 19 Google reviews, listed on Google as “Septic system service”.
#23 c6 Environmental
Based in Edgewood, 13 mi away
52/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Septic system service”.
Based in Burke, 10 mi away
52/100CR ScoreRanked #24 because of its Google rating and review volume: 4.8★ from 464 Google reviews.
Based in Bowie, 4 mi away
51/100CR ScoreRanked #25 because of its Google rating and availability: 5.0★ from 7 Google reviews, open 24/7.
All 38 septic service companies
#1 to #25 are shown in full above. Here are #26 to #38, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Emerald Plumbing Co. | 50 | 4.7★ (159) | 23 mi |
| 27 | Aits Septic Service | 49 | 5.0★ (3) | 9 mi |
| 28 | Beltway Sewer & Plumbing Services | 49 | 4.8★ (45) | 16 mi |
| 29 | JFK Plumbing Repair and Drain Service | 49 | 4.8★ (13) | 13 mi |
| 30 | B.L. James & Son | 49 | 4.9★ (383) | 22 mi |
| 31 | Catoctin Environmental | 49 | 4.8★ (24) | 23 mi |
| 32 | Able Plumbing, Inc. | 48 | 4.5★ (35) | 14 mi |
| 33 | Stoney's Plumbing | 47 | 5.0★ (290) | 23 mi |
| 34 | Sonny's Septic & Excavating | 45 | 3.7★ (3) | 24 mi |
| 35 | Monticello Well Pump Services - Leesburg, VA | 45 | 5.0★ (4) | 23 mi |
| 36 | Benjamin Franklin Plumbing of Northern Virginia | 45 | 4.5★ (62) | 20 mi |
| 37 | United drain & sewer services LLC | 44 | 5.0★ (4) | 24 mi |
| 38 | Seal Tight Plumbing | 44 | 4.6★ (11) | 13 mi |
Also serving Manassas Park
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 |
|---|---|---|
| Abbott's Septic Repair | 5.0★ (2) | 5 mi |
| Adams-Liming Septic Tank Services | 21 mi | |
| AITS Septic Repair Services | 14 mi | |
| Aits Septic Services Inc | 3.0★ (1) | 11 mi |
| American Septic Services | 5.0★ (2) | 13 mi |
| Bbs septic service | 23 mi | |
| EA Plumbing - Residential Plumbing Repair Contractor, Pipe and Sewer Repair in Manassas, VA | 5.0★ (1) | 3 mi |
| Hoovers Tank and Drain | 5.0★ (1) | 2 mi |
| J & L Plumbing | 5.0★ (2) | 14 mi |
| Monticello Well Pump Services | 5.0★ (2) | 10 mi |
| Nova Liquid Enviornmental | 14 mi | |
| Rocket Rooter Plumbing | 3.0★ (2) | 24 mi |
| Septic Locator | 23 mi | |
| topsoil | 13 mi | |
| Vienna Septic Tank Services | 3.0★ (2) | 12 mi |
| Virginia Septic | 5.0★ (2) | 9 mi |
How we ranked Manassas Park septic service companies
We scored 38 Manassas Park 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 Manassas Park 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 Manassas Park: frequently asked questions
Who is the best septic service company in Manassas Park?
By CR Score, the highest-ranked septic service company in Manassas Park, VA is My Plumber Plus with a CR Score of 59/100. It has 4.7★ from 7,642 Google reviews. It is open 7 days a week. United Rentals - Reliable Onsite Services (#2) and Haynes Plumbing Sewer and Water Services (#3) follow. We ranked 38 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Manassas Park?
ContractorsRanked ranks 38 septic service companies serving Manassas Park, VA. 1 of them is based in Manassas Park; 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 Manassas Park are open 24/7?
12 ranked septic service companies in Manassas Park post 24/7 hours. The highest-ranked are Haynes Plumbing Sewer and Water Services (#3), Home Service Pros - Quality Sewer & Drain (#5) and Five Star Septic Inc. (#6). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Manassas Park work on weekends?
25 of 38 ranked septic service companies post Saturday hours and 17 post Sunday hours. The highest-ranked open Saturdays are My Plumber Plus (#1), Haynes Plumbing Sewer and Water Services (#3) and Home Service Pros - Quality Sewer & Drain (#5). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Manassas Park septic service companies have?
The median Google rating among 38 rated septic service companies in Manassas Park is 4.8★, with a median of 38 reviews. My Plumber Plus has the most, 7,642 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 Manassas Park count in this ranking?
Yes, if they are within 25 mi of the Manassas Park 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 Manassas Park
- November 2026: CR Scores recalculated for 38 septic service companies serving Manassas Park.
- November 2026: 1 duplicate listing merged.
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