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Best Septic Service Companies in Shrewsbury, MA (2026)

99 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Shrewsbury: JL Darling Septic Tank Pumping, CR Score 63/100; 5.0★ from 382 Google reviews; open 24/7.

  2. 3

    Best for emergencies (open 24/7): Northboro / Curtis Septic Service, posts 24/7 hours; ranked #3 of 99.

  3. 5

    Most-reviewed: Wind River Environmental, 854 Google reviews at 4.9★, the most of 99 ranked; ranked #5.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

99 Shrewsbury septic service companies are ranked here by CR Score, from ten published factors. 32 are open 24/7, 54 open Saturdays and 38 open Sundays, based on posted hours. The median Google rating is 4.9★ across 99 rated businesses.

Top 10 septic service companies in Shrewsbury at a glance

Top 10 septic service companies in Shrewsbury at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1JL Darling Septic Tank Pumping635.0★ (382)Uxbridge, 19 mi away24/7Overall
2Grant's Septic Techs625.0★ (590)Worcester, 10 mi awaySat—
3Northboro / Curtis Septic Service624.9★ (73)Northborough, 5 mi away24/7Emergencies
4Fairbank Septic Pumping LLC604.9★ (93)Sudbury, 15 mi away24/7—
5Wind River Environmental594.9★ (854)Hudson, 11 mi away24/7Most reviews
6Curtis Septic Service594.7★ (77)Stow, 15 mi away24/7—
7Blackstone Septic Service595.0★ (17)Millbury, 9 mi away24/7—
8DownEast Title V Inspections, LLC585.0★ (47)Haverhill, 18 mi away24/7—
9Smith Septic585.0★ (17)Franklin, 12 mi away24/7—
10CSI-Culley's Septic Inc584.9★ (141)Marlborough, 8 mi away——

The 99 best septic service companies in Shrewsbury, 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.

  2. #2 Grant's Septic Techs

    Based in Worcester, 10 mi away

    62/100CR Score

    Ranked #2 because of its Google rating and trade focus: 5.0★ from 590 Google reviews, listed on Google as “Septic system service”.

    • 5.0★ from 590 Google reviews
    Hours
    Mon–Fri 7 AM–5 PM · Sat 9 AM–2 PM · Sun closed
    Address
    5 Farm St, Upton, MA 01568
    View profile for Grant's Septic Techs(508) 529-6255

  9. #9 Smith Septic

    Based in Franklin, 12 mi away

    58/100CR Score

    Ranked #9 because of its Google rating and trade focus: 5.0★ from 17 Google reviews, listed on Google as “Septic system service”.

    • 5.0★ from 17 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for Smith Septic(774) 248-4793

  11. #11 ADC Septic

    Based in Blackstone, 20 mi away

    57/100CR Score

    Ranked #11 because of its Google rating and trade focus: 4.7★ from 53 Google reviews, listed on Google as “Septic system service”.

    • 4.7★ from 53 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    295 Lincoln St, Blackstone, MA 01504
    View profile for ADC Septic(508) 883-9000

  12. #12 Dumont Septic Pumping

    Based in Charlton, 18 mi away

    57/100CR Score

    Ranked #12 because of its Google rating and trade focus: 5.0★ from 26 Google reviews, listed on Google as “Septic system service”.

    • 5.0★ from 26 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    8 Bullard Rd, North Brookfield, MA 01535
    View profile for Dumont Septic Pumping(508) 867-9353

  17. #17 Curtis Septic

    Based in Leominster, 21 mi away

    56/100CR Score

    Ranked #17 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “Septic system service”.

    • 5.0★ from 21 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    6 Meetinghouse Rd, Littleton, MA 01460
    View profile for Curtis Septic(978) 540-5555

  22. #22 R M Ratta Corp

    Based in Fitchburg, 21 mi away

    55/100CR Score

    Ranked #22 because of its Google rating and trade focus: 4.9★ from 204 Google reviews, listed on Google as “Septic system service”.

    • 4.9★ from 204 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    81 Westford Rd, Ayer, MA 01432
    View profile for R M Ratta Corp(978) 772-1600

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 99 ranked septic service companies here; the rest are on their profiles.

septic service companies in Shrewsbury, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26American Sewerage544.8★ (16)12 mi
27Jpc Septic & Title 5 Inspection545.0★ (133)15 mi
28Stevens and sons septic pumping545.0★ (6)18 mi
29Lancaster Septic543.0★ (4)12 mi
30DP Mercurio & Sons Construction and Septic545.0★ (35)7 mi
31Scott Septic Inc.544.5★ (12)11 mi
32Dave Starmer Disposal, Inc.544.4★ (12)17 mi
33USA EXCAVATING - water and sewer545.0★ (22)4 mi
34Emergency Sewer & Drain Repair534.9★ (30)18 mi
35United Site Services532.9★ (11)5 mi
36R Barnes Sanitation535.0★ (17)19 mi
37J J Holmes & Sons Oil Co532.6★ (5)5 mi
38Rotti and Son LLC, Septic, Title 5 Inspection, & Excavating535.0★ (26)22 mi
39Grant's Septic Techs535.0★ (8)13 mi
40Slims & Berthiaume Sewer Service Inc534.5★ (40)13 mi
41Bancroft/Silva Septic Services534.9★ (17)20 mi
42Parker Cesspool & Septic Tank534.3★ (36)25 mi
43Rooter-Man524.6★ (71)14 mi
44Mid State Sewerage Service523.4★ (5)6 mi
45J L Darling Sewerage Service525.0★ (17)18 mi
46L & H Sewerage Corp525.0★ (13)11 mi
47Greenwood Sewer Service524.4★ (20)24 mi
48Doucette Engineering & Septic Design525.0★ (26)17 mi
49Grant's Septic Techs525.0★ (5)13 mi
50Hendriks Plumbing525.0★ (110)5 mi

Also serving Shrewsbury

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.

Unranked septic service companies serving Shrewsbury
BusinessGoogle ratingDistance
American Sewerage Septic Tanks3.0★ (2)12 mi
Beals & Sons Inc. - Construction Company5.0★ (1)3 mi
CDM Septic & Construction1.0★ (1)20 mi
Central Mass Septic Services Inc5 mi
Cutler Contracting, Inc.5.0★ (1)16 mi
David Favreau Construction & Septic Services5.0★ (2)8 mi
E A Comeau Septic5.0★ (1)18 mi
G. Nichols Construction Co., Inc5.0★ (2)17 mi
Grants Septic Services6 mi
Groundscapes Inc.5.0★ (2)9 mi
L H Sewerage Inc5.0★ (2)15 mi
M G Stanick Septic Pumping Services4.5★ (2)16 mi
Mark Santora PE Inc5.0★ (2)6 mi
NorthEast Classic Builders1.0★ (1)21 mi
P & M Asphalt Services Inc1.0★ (1)10 mi
R Gustafson Sewer & Drain3.0★ (2)7 mi
R.E Barrows Septic Service & Construction5.0★ (1)5 mi
Rotti Construction Co5.0★ (1)7 mi
Septic-Tech Inspector5.0★ (1)8 mi
Trinity Industries Corporation5.0★ (1)12 mi

How we ranked Shrewsbury septic service companies

We scored 99 Shrewsbury 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.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn Shrewsbury data
Reputation25%Google star rating, adjusted for how many reviews back itMeasured
Credentials15%Active state license, bond and workers’ comp on fileNot yet collected
Review volume10%Number of Google reviews, compared with the most-reviewed business on the listMeasured
Recency5%Share of reviews from the last 12 monthsNot yet collected
Availability5%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%How clearly the business does this trade (its Google category and name)Measured
Proximity5%Based in the city scores highest, less the farther away it isMeasured
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)Measured
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodicallyMeasured
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there areMeasured

Septic service companies in Shrewsbury: frequently asked questions

Who is the best septic service company in Shrewsbury?

By CR Score, the highest-ranked septic service company in Shrewsbury, MA is JL Darling Septic Tank Pumping with a CR Score of 63/100. It has 5.0★ from 382 Google reviews. It is open 24/7. Grant's Septic Techs (#2) and Northboro / Curtis Septic Service (#3) follow. We ranked 99 septic service companies on ten factors, last updated November 3, 2026.

How many septic service companies are there in Shrewsbury?

ContractorsRanked ranks 99 septic service companies serving Shrewsbury, MA. Another 20 within 25 mi are listed but not ranked yet. Counts are as of November 2026.

Which septic service companies in Shrewsbury are open 24/7?

32 ranked septic service companies in Shrewsbury post 24/7 hours. The highest-ranked are JL Darling Septic Tank Pumping (#1), Northboro / Curtis Septic Service (#3) and Fairbank Septic Pumping LLC (#4). Hours come from each business's Google listing as of November 2026, so call to confirm.

Which septic service companies in Shrewsbury work on weekends?

54 of 99 ranked septic service companies post Saturday hours and 38 post Sunday hours. The highest-ranked open Saturdays are JL Darling Septic Tank Pumping (#1), Grant's Septic Techs (#2) and Northboro / Curtis Septic Service (#3). Posted hours are office hours; crews may book weekend jobs separately.

What Google rating do Shrewsbury septic service companies have?

The median Google rating among 99 rated septic service companies in Shrewsbury is 4.9★, with a median of 17 reviews. Wind River Environmental has the most, 854 reviews, and ranks #5. 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 Shrewsbury count in this ranking?

Yes, if they are within 25 mi of the Shrewsbury 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 Shrewsbury

  1. November 2026: CR Scores recalculated for 99 septic service companies serving Shrewsbury.

More septic service companies and Shrewsbury pages

Other trades in Shrewsbury