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ContractorsRanked

Best Septic Service Companies in Portage, WI (2026)

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

The short answer

  1. 1

    Best overall in Portage: The Country Plumber, CR Score 53/100; 4.3★ from 160 Google reviews.

  2. 2

    Most-reviewed: Terrytown Plumbing, Heating & Cooling, 220 Google reviews at 4.5★, the most of 8 ranked; ranked #2.

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

8 Portage septic service companies are ranked here by CR Score, from ten published factors. The median Google rating is 4.7★ across 8 rated businesses.

Top 8 septic service companies in Portage at a glance

Top 8 septic service companies in Portage at a glance
RankBusinessCR ScoreGoogle ratingBased inBest for
1The Country Plumber534.3★ (160)PortageOverall
2Terrytown Plumbing, Heating & Cooling514.5★ (220)Baraboo, 15 mi awayMost reviews
3Meinholz Excavating Inc.494.8★ (21)Madison, 24 mi away—
4A-1 Sewer Service Inc.484.8★ (12)Madison, 24 mi away—
5Terrytown Plumbing, Heating & Cooling484.2★ (41)Portage—
6Sewer Ninjas485.0★ (17)Cottage Grove, 13 mi away—
7Wieser Concrete Products Inc484.1★ (22)Portage—
8Richardson Sanitation, LLC465.0★ (3)Madison, 19 mi away—

The 8 best septic service companies in Portage, 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.

  6. #6 Sewer Ninjas

    Based in Cottage Grove, 13 mi away

    48/100CR Score

    Ranked #6 because of its Google rating and trade focus: 5.0★ from 17 Google reviews, listed on Google as “Plumber”.

    • 5.0★ from 17 Google reviews
    Hours
    Mon–Fri 8 AM–4:30 PM · Sat–Sun closed
    View profile for Sewer Ninjas(608) 291-4725

How we ranked Portage septic service companies

We scored 8 Portage 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 Portage 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 Portage: frequently asked questions

Who is the best septic service company in Portage?

By CR Score, the highest-ranked septic service company in Portage, WI is The Country Plumber with a CR Score of 53/100. It has 4.3★ from 160 Google reviews. Terrytown Plumbing, Heating & Cooling (#2) and Meinholz Excavating Inc. (#3) follow. We ranked 8 septic service companies on ten factors, last updated November 3, 2026.

How many septic service companies are there in Portage?

ContractorsRanked ranks 8 septic service companies serving Portage, WI. 3 of them are based in Portage; the rest serve it from nearby towns. Counts are as of November 2026.

What Google rating do Portage septic service companies have?

The median Google rating among 8 rated septic service companies in Portage is 4.7★, with a median of 22 reviews. Terrytown Plumbing, Heating & Cooling has the most, 220 reviews, and ranks #2. 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 Portage count in this ranking?

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

  1. November 2026: CR Scores recalculated for 8 septic service companies serving Portage.

More septic service companies and Portage pages

Other trades in Portage