64/100CR Score
Ranked #1 because of its Google rating and trade focus: 5.0★ from 86 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Best Septic Service Companies in Manchester, NH (2026)
58 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Manchester: Waste Warriors, CR Score 64/100; 5.0★ from 86 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Carl's Septic Systems and Services in New Hampshire, posts 24/7 hours; ranked #2 of 58.
- 31
Most-reviewed: New Era Plumbing & HVAC, 1,003 Google reviews at 4.9★, the most of 58 ranked; ranked #31.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
58 Manchester septic service companies are ranked here by CR Score, from ten published factors. 13 are open 24/7, 23 open Saturdays and 17 open Sundays, based on posted hours. The median Google rating is 4.9★ across 58 rated businesses.
Top 10 septic service companies in Manchester at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Waste Warriors | 64 | 5.0★ (86) | Manchester | 24/7 | Overall |
| 2 | Carl's Septic Systems and Services in New Hampshire | 64 | 4.8★ (118) | Manchester | 24/7 | Emergencies |
| 3 | Sewer Surgeons | 63 | 4.8★ (295) | East Concord, 11 mi away | 24/7 | — |
| 4 | Septic Check Inspections | 63 | 4.9★ (117) | Manchester | Sat · Sun · Evenings | — |
| 5 | Kent Septic LLC | 60 | 4.8★ (287) | Manchester | — | — |
| 6 | Roland's Sewer Service | 59 | 4.6★ (9) | Manchester | 24/7 | — |
| 7 | Felix, A Wind River Company | 59 | 4.9★ (609) | Concord, 10 mi away | 24/7 | — |
| 8 | Mr. Rooter Plumbing of Greater New Hampshire | 59 | 4.8★ (897) | Concord, 10 mi away | 24/7 | — |
| 9 | East Coast Pipe Service | 58 | 5.0★ (26) | East Concord, 9 mi away | Sat · Sun | — |
| 10 | LaFrance Septic Services | 58 | 4.9★ (96) | Salem, 18 mi away | Sat · Sun | — |
The 58 best septic service companies in Manchester, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Manchester
64/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.8★ from 118 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in East Concord, 11 mi away
63/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.8★ from 295 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Manchester
63/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.9★ from 117 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Manchester
60/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.8★ from 287 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Manchester
59/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.6★ from 9 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Concord, 10 mi away
59/100CR ScoreRanked #7 because of its Google rating and review volume: 4.9★ from 609 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Concord, 10 mi away
59/100CR ScoreRanked #8 because of its Google rating and review volume: 4.8★ from 897 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in East Concord, 9 mi away
58/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 26 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Salem, 18 mi away
58/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.9★ from 96 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bedford, 4 mi away
57/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.8★ from 83 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hudson, 12 mi away
57/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.9★ from 196 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Manchester
56/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.7★ from 37 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Manchester
56/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Londonderry, 9 mi away
56/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 67 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Manchester
56/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.6★ from 30 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Concord, 16 mi away
56/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 42 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Manchester
56/100CR ScoreRanked #18 because of its Google rating and trade focus: 5.0★ from 17 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Concord, 10 mi away
55/100CR ScoreRanked #19 because of its Google rating and trade focus: 3.8★ 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 Keene, 21 mi away
55/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ from 14 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hudson, 12 mi away
55/100CR ScoreRanked #21 because of its Google rating and review volume: 4.9★ from 380 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
#22 Sewer Surgeons
Based in Derry, 17 mi away
54/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Merrimack, 8 mi away
54/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.6★ from 47 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Nashua, 14 mi away
54/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.8★ from 56 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hampstead, 17 mi away
54/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.8★ from 31 Google reviews, listed on Google as “Septic system service”.
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 58 ranked septic service companies here; the rest are on their profiles.
Also serving Manchester
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 |
|---|---|---|
| A-Bee Septic LLC | 5.0★ (1) | 10 mi |
| Al's Septic & Excavation | 3.0★ (2) | 10 mi |
| All-Clear Septic Services | 1.0★ (1) | 15 mi |
| Beaver Brook Planning and Design, LLC | 5.0★ (1) | 15 mi |
| Dependable Construction Company Inc | In Manchester | |
| DoneRight Septic Service | In Manchester | |
| Farrell Contracting Services, LLC | 5.0★ (2) | 21 mi |
| Innovative Septic Solutions | In Manchester | |
| Land Engineering & Envrmntl | 5.0★ (2) | 23 mi |
| LEGACY HOMES, INC. | In Manchester | |
| Liberty Septic Services, LLC | 5.0★ (1) | In Manchester |
| New Hampshire Septic Systems Installations | In Manchester | |
| QUIRK Real Estate Sales, Development and Construction | 3.0★ (2) | 17 mi |
| Sandford Surveying and Engineering, Inc. | 5.0★ (1) | 8 mi |
| Sewer Works | 5.0★ (2) | 13 mi |
| Slate Corporation | 5.0★ (1) | 4 mi |
| South Road Designs | 5.0★ (1) | In Manchester |
| Stewart Septic Services | 3.0★ (2) | 18 mi |
| Title 5 Inspection | 5.0★ (1) | 13 mi |
| Wilson Septic Systems & Paving | 5.0★ (1) | 15 mi |
How we ranked Manchester septic service companies
We scored 58 Manchester 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 Manchester 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 Manchester: frequently asked questions
Who is the best septic service company in Manchester?
By CR Score, the highest-ranked septic service company in Manchester, NH is Waste Warriors with a CR Score of 64/100. It has 5.0★ from 86 Google reviews. It is open 24/7. Carl's Septic Systems and Services in New Hampshire (#2) and Sewer Surgeons (#3) follow. We ranked 58 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Manchester?
ContractorsRanked ranks 58 septic service companies serving Manchester, NH. 10 of them are based in Manchester; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Manchester are open 24/7?
13 ranked septic service companies in Manchester post 24/7 hours. The highest-ranked are Waste Warriors (#1), Carl's Septic Systems and Services in New Hampshire (#2) and Sewer Surgeons (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Manchester work on weekends?
23 of 58 ranked septic service companies post Saturday hours and 17 post Sunday hours. The highest-ranked open Saturdays are Waste Warriors (#1), Carl's Septic Systems and Services in New Hampshire (#2) and Sewer Surgeons (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Manchester septic service companies have?
The median Google rating among 58 rated septic service companies in Manchester is 4.9★, with a median of 30 reviews. New Era Plumbing & HVAC has the most, 1,003 reviews, and ranks #31. 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 Manchester count in this ranking?
Yes, if they are within 25 mi of the Manchester 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 Manchester
- November 2026: CR Scores recalculated for 58 septic service companies serving Manchester.
- November 2026: 1 duplicate listing merged.
More septic service companies and Manchester pages
Septic service companies near Manchester
- Septic service companies in Bedford, NH57 ranked
- Septic service companies in Merrimack, NH70 ranked
- Septic service companies in Londonderry, NH81 ranked
- Septic service companies in Derry Village, NH81 ranked
- Septic service companies in Derry, NH83 ranked
- Septic service companies in Concord, NH39 ranked
- Septic service companies in Windham, NH89 ranked
- Septic service companies in Nashua, NH87 ranked
- Septic service companies in East Concord, NH34 ranked
- Septic service companies in Pelham, NH92 ranked
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