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Best Septic Service Companies in Nampa, ID (2026)

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

The short answer

  1. 1

    Best overall in Nampa: Express Septic & Drain Cleaning, CR Score 65/100; 4.9★ from 646 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): ABC Pumping Service, posts 24/7 hours; ranked #2 of 36.

  3. 10

    Most-reviewed: Perfect Plumbing Heating & Air, 5,442 Google reviews at 4.8★, the most of 36 ranked; ranked #10.

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

36 Nampa septic service companies are ranked here by CR Score, from ten published factors. 23 are open 24/7, 26 open Saturdays and 22 open Sundays, based on posted hours. The median Google rating is 5.0★ across 36 rated businesses.

Top 10 septic service companies in Nampa at a glance

Top 10 septic service companies in Nampa at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Express Septic & Drain Cleaning654.9★ (646)Nampa24/7Overall
2ABC Pumping Service635.0★ (816)Meridian, 10 mi away24/7Emergencies
3Express Septic & Drain Cleaning624.9★ (676)Caldwell, 14 mi away24/7—
4Qube Septic615.0★ (38)Nampa24/7—
5Express Septic & Drain Cleaning614.9★ (550)Boise, 16 mi away24/7—
6ABC Pumping Service604.8★ (22)Nampa24/7—
7Mike's Septic & Drain585.0★ (71)Boise, 15 mi away24/7—
8American Septic & Sewer585.0★ (22)Caldwell, 10 mi away24/7—
9Cleanline Plumbing Solutions574.9★ (213)Nampa24/7—
10Perfect Plumbing Heating & Air574.8★ (5,442)Garden City, 17 mi away24/7Most reviews

The 36 best septic service companies in Nampa, 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 ABC Pumping Service

    Based in Meridian, 10 mi away

    63/100CR Score

    Ranked #2 because of its Google rating and trade focus: 5.0★ from 816 Google reviews, listed on Google as “Septic system service”.

    • 5.0★ from 816 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    281 N Baltic Pl, Meridian, ID 83642
    View profile for ABC Pumping Service(208) 515-2474

  4. #4 Qube Septic

    Based in Nampa

    61/100CR Score

    Ranked #4 because of its Google rating and trade focus: 5.0★ from 38 Google reviews, listed on Google as “Septic system service”.

    • 5.0★ from 38 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    810 S. Quiet Creek Ln, Nampa, ID 83687
    View profile for Qube Septic(208) 782-7283

  12. #12 Mike's Septic & Drain

    Based in Caldwell, 8 mi away

    57/100CR Score

    Ranked #12 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Septic system service”.

    • 5.0★ from 10 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    5009 Aviation Way, Caldwell, ID 83605
    View profile for Mike's Septic & Drain(208) 718-0814

  19. #19 ABC Pumping Services

    Based in Eagle, 15 mi away

    55/100CR Score

    Ranked #19 because of its Google rating and trade focus: 5.0★ from 11 Google reviews, listed on Google as “Septic system service”.

    • 5.0★ from 11 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    393 W State St f, Eagle, ID 83616
    View profile for ABC Pumping Services(208) 954-5339

  21. #21 Master Plumbing

    Based in Boise, 14 mi away

    55/100CR Score

    Ranked #21 because of its Google rating and review volume: 4.9★ from 564 Google reviews.

    • 4.9★ from 564 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    9446 W Fairview Ave Suite B, Boise, ID 83704
    View profile for Master Plumbing(208) 939-7515

All 36 septic service companies

#1 to #25 are shown in full above. Here are #26 to #36, in CR Score order; each links to its profile.

septic service companies in Nampa, ranks 26 to 36
RankBusinessCR ScoreGoogle ratingDistance
26Basalt Blackwater535.0★ (24)11 mi
27Prime Plumbing524.9★ (786)8 mi
28Treasure Valley Septic Services515.0★ (4)14 mi
29Alternative Wastewater Systems, LLC511.5★ (4)In Nampa
30Nampa Septic Services515.0★ (10)7 mi
31Fitzgerald Mechanical, Septic, & Excavation504.3★ (12)In Nampa
32JJD Water Sewer Septic485.0★ (5)12 mi
33Steady Earthworks, LLC485.0★ (26)4 mi
34United Site Services482.5★ (30)16 mi
35A Sewer Services484.3★ (3)10 mi
36Crossflow Plumbing485.0★ (7)12 mi

Also serving Nampa

10 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 Nampa
BusinessGoogle ratingDistance
Black Water Solutions, LLC5.0★ (2)In Nampa
Eells Excavation, LLC5.0★ (1)12 mi
Elite Sewer and Drain10 mi
JMH Construction and Excavation Services22 mi
Last Call Backhoe15 mi
Nampa Drain & Septic Inc5.0★ (2)In Nampa
Plumbing Solutions of Boise16 mi
SepticPro6 mi
Star Sewer & Water2.5★ (2)12 mi
Sweet's Sewer Drain & Cleaning3.0★ (2)19 mi

How we ranked Nampa septic service companies

We scored 36 Nampa 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 Nampa 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 Nampa: frequently asked questions

Who is the best septic service company in Nampa?

By CR Score, the highest-ranked septic service company in Nampa, ID is Express Septic & Drain Cleaning with a CR Score of 65/100. It has 4.9★ from 646 Google reviews. It is open 24/7. ABC Pumping Service (#2) and Express Septic & Drain Cleaning (#3) follow. We ranked 36 septic service companies on ten factors, last updated November 3, 2026.

How many septic service companies are there in Nampa?

ContractorsRanked ranks 36 septic service companies serving Nampa, ID. 10 of them are based in Nampa; the rest serve it from nearby towns. Another 10 within 25 mi are listed but not ranked yet. Counts are as of November 2026.

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

23 ranked septic service companies in Nampa post 24/7 hours. The highest-ranked are Express Septic & Drain Cleaning (#1), ABC Pumping Service (#2) and Express Septic & Drain Cleaning (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.

Which septic service companies in Nampa work on weekends?

26 of 36 ranked septic service companies post Saturday hours and 22 post Sunday hours. The highest-ranked open Saturdays are Express Septic & Drain Cleaning (#1), ABC Pumping Service (#2) and Express Septic & Drain Cleaning (#3). Posted hours are office hours; crews may book weekend jobs separately.

What Google rating do Nampa septic service companies have?

The median Google rating among 36 rated septic service companies in Nampa is 5.0★, with a median of 48 reviews. Perfect Plumbing Heating & Air has the most, 5,442 reviews, and ranks #10. 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 Nampa count in this ranking?

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

  1. November 2026: CR Scores recalculated for 36 septic service companies serving Nampa.

More septic service companies and Nampa pages

Other trades in Nampa