Skip to content
ContractorsRanked

Best Septic Service Companies in Shasta Lake, CA (2026)

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

The short answer

  1. 1

    Best overall in Shasta Lake: Welch Enterprises - Redding Septic Pumping, CR Score 63/100; 5.0★ from 243 Google reviews; open Saturdays until 12 PM.

  2. 2

    Best for emergencies (open 24/7): CNC Pumps, posts 24/7 hours; ranked #2 of 11.

  3. 4

    Most-reviewed: Axner Excavating Inc., 310 Google reviews at 4.6★, the most of 11 ranked; ranked #4.

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

11 Shasta Lake septic service companies are ranked here by CR Score, from ten published factors. 2 are open 24/7, 5 open Saturdays and 3 open Sundays, based on posted hours. The median Google rating is 5.0★ across 11 rated businesses.

Top 10 septic service companies in Shasta Lake at a glance

Top 10 septic service companies in Shasta Lake at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Welch Enterprises - Redding Septic Pumping635.0★ (243)Redding, 8 mi awaySatOverall
2CNC Pumps614.8★ (51)Redding, 12 mi away24/7Emergencies
3Shasta County Septic Services575.0★ (125)Redding, 17 mi away——
4Axner Excavating Inc.564.6★ (310)Redding, 9 mi awaySat · SunMost reviews
5Lee One Construction545.0★ (28)Redding, 9 mi away24/7—
6Big Valley Sanitation534.3★ (38)Anderson, 15 mi away——
7Ray Excavating and Grading495.0★ (44)Redding, 17 mi away——
8Eddie Axner Construction474.4★ (27)Redding, 11 mi away——
9Davis Excavating Inc.475.0★ (25)Anderson, 15 mi away——
10Kelly Construction Co.464.3★ (6)Redding, 7 mi away——

The 11 best septic service companies in Shasta Lake, 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 CNC Pumps

    Based in Redding, 12 mi away

    61/100CR Score

    Ranked #2 because of its Google rating and trade focus: 4.8★ from 51 Google reviews, listed on Google as “Septic system service”.

    • 4.8★ from 51 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    19278 E Niles Ln, Redding, CA 96002
    View profile for CNC Pumps(530) 722-8788

  6. #6 Big Valley Sanitation

    Based in Anderson, 15 mi away

    53/100CR Score

    Ranked #6 because of its Google rating and trade focus: 4.3★ from 38 Google reviews, listed on Google as “Septic system service”.

    • 4.3★ from 38 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    19637 Spring Gulch Rd, Anderson, CA 96007
    View profile for Big Valley Sanitation(530) 243-0657

  10. #10 Kelly Construction Co.

    Based in Redding, 7 mi away

    46/100CR Score

    Ranked #10 because of its Google rating and trade focus: 4.3★ from 6 Google reviews, listed on Google as “Construction company”.

    • 4.3★ from 6 Google reviews
    Hours
    Mon–Thu 8 AM–5 PM · Fri 8 AM–4 PM · Sat–Sun closed
    Address
    871 Mistletoe Ln, Redding, CA 96002
    View profile for Kelly Construction Co.(530) 549-3961

Also serving Shasta Lake

9 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 Shasta Lake
BusinessGoogle ratingDistance
Brown Plumbing9 mi
Custom Plumbing - Redding Plumber9 mi
Earl's Performance Plumbing11 mi
JYH Septic & Portable5.0★ (1)8 mi
Mr. Rooter Plumbing of Shasta County4 mi
Rooter Scooter Sewer & Drain Service8 mi
Roto-Rooter Plumbers13 mi
Steve Beaton Plumbing Inc12 mi
Twyman Plumbing and Electric8 mi

How we ranked Shasta Lake septic service companies

We scored 11 Shasta Lake 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 Shasta Lake 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 Shasta Lake: frequently asked questions

Who is the best septic service company in Shasta Lake?

By CR Score, the highest-ranked septic service company in Shasta Lake, CA is Welch Enterprises - Redding Septic Pumping with a CR Score of 63/100. It has 5.0★ from 243 Google reviews. It is open Saturdays until 12 PM. CNC Pumps (#2) and Shasta County Septic Services (#3) follow. We ranked 11 septic service companies on ten factors, last updated November 3, 2026.

How many septic service companies are there in Shasta Lake?

ContractorsRanked ranks 11 septic service companies serving Shasta Lake, CA. Another 9 within 25 mi are listed but not ranked yet. Counts are as of November 2026.

Which septic service companies in Shasta Lake are open 24/7?

2 ranked septic service companies in Shasta Lake post 24/7 hours. The highest-ranked are CNC Pumps (#2) and Lee One Construction (#5). Hours come from each business's Google listing as of November 2026, so call to confirm.

Which septic service companies in Shasta Lake work on weekends?

5 of 11 ranked septic service companies post Saturday hours and 3 post Sunday hours. The highest-ranked open Saturdays are Welch Enterprises - Redding Septic Pumping (#1), CNC Pumps (#2) and Axner Excavating Inc. (#4). Posted hours are office hours; crews may book weekend jobs separately.

What Google rating do Shasta Lake septic service companies have?

The median Google rating among 11 rated septic service companies in Shasta Lake is 5.0★, with a median of 38 reviews. Axner Excavating Inc. has the most, 310 reviews, and ranks #4. 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 Shasta Lake count in this ranking?

Yes, if they are within 25 mi of the Shasta Lake 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 Shasta Lake

  1. November 2026: CR Scores recalculated for 11 septic service companies serving Shasta Lake.

More septic service companies and Shasta Lake pages

Other trades in Shasta Lake