Ranked #1 in Zion
Based in Lake Bluff, 12 mi away
58/100CR Score
Ranked #1 because of its Google rating and trade focus: 5.0★ from 1,064 Google reviews, listed on Google as “HVAC contractor”.
Best Septic Service Companies in Zion, IL (2026)
92 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Zion: Cahill Heating, Cooling, Electric, Plumbing & Sewer, CR Score 58/100; 5.0★ from 1,064 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): ABC Plumbing, Sewer, Heating, Cooling & Electric, posts 24/7 hours; ranked #2 of 92.
- 2
Most-reviewed: ABC Plumbing, Sewer, Heating, Cooling & Electric, 22,524 Google reviews at 4.7★, the most of 92 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
92 Zion septic service companies are ranked here by CR Score, from ten published factors. 47 are open 24/7, 62 open Saturdays and 51 open Sundays, based on posted hours. The median Google rating is 4.9★ across 92 rated businesses.
Top 10 septic service companies in Zion at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Cahill Heating, Cooling, Electric, Plumbing & Sewer | 58 | 5.0★ (1,064) | Lake Bluff, 12 mi away | 24/7 | Overall |
| 2 | ABC Plumbing, Sewer, Heating, Cooling & Electric | 57 | 4.7★ (22,524) | Arlington Heights, 23 mi away | 24/7 | Emergencies, Most reviews |
| 3 | Duane Blanton Plumbing, Sewer, Heating & Cooling | 57 | 4.7★ (2,290) | Round Lake, 15 mi away | 24/7 | — |
| 4 | S and J Plumbing & Sewer | 57 | 4.9★ (3,937) | Arlington Heights, 23 mi away | 24/7 | — |
| 5 | Wally Blanton Plumbing and Sewer | 57 | 4.7★ (887) | Antioch, 11 mi away | 24/7 | — |
| 6 | Water Tight Plumbing & Sewer | 57 | 4.6★ (152) | Zion | 24/7 | — |
| 7 | SPG Plumbing, Drain and Sewer Gurnee | 56 | 5.0★ (103) | Gurnee, 6 mi away | 24/7 | — |
| 8 | T And T Plumbing & Sewer | 56 | 4.7★ (184) | Gurnee, 6 mi away | 24/7 | — |
| 9 | Ex-Stink Plumbing & Sewer | 56 | 4.9★ (639) | Fox Lake, 18 mi away | 24/7 | — |
| 10 | Windy City Rooter Plumbing, Sewer, and Drainage | 55 | 4.6★ (458) | Antioch, 10 mi away | 24/7 | — |
The 92 best septic service companies in Zion, 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.
Based in Arlington Heights, 23 mi away
57/100CR ScoreRanked #2 because of its Google rating and review volume: 4.7★ from 22,524 Google reviews, the most in Zion.
Based in Round Lake, 15 mi away
57/100CR ScoreRanked #3 because of its Google rating and review volume: 4.7★ from 2,290 Google reviews.
Based in Arlington Heights, 23 mi away
57/100CR ScoreRanked #4 because of its Google rating and review volume: 4.9★ from 3,937 Google reviews.
Based in Antioch, 11 mi away
57/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.7★ from 887 Google reviews, listed on Google as “Plumber”.
Based in Zion
57/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.6★ from 152 Google reviews, listed on Google as “Plumber”.
Based in Gurnee, 6 mi away
56/100CR ScoreRanked #7 because of its Google rating and trade focus: 5.0★ from 103 Google reviews, listed on Google as “HVAC contractor”.
Based in Gurnee, 6 mi away
56/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.7★ from 184 Google reviews, listed on Google as “Plumber”.
Based in Fox Lake, 18 mi away
56/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.9★ from 639 Google reviews, listed on Google as “Plumber”.
Based in Antioch, 10 mi away
55/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.6★ from 458 Google reviews, listed on Google as “Plumber”.
Based in Round Lake, 13 mi away
55/100CR ScoreRanked #11 because of its Google rating and trade focus: 5.0★ from 149 Google reviews, listed on Google as “Plumber”.
Based in Woodstock, 9 mi away
55/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.9★ from 79 Google reviews, listed on Google as “Septic system service”.
Based in Pleasant Prairie, 5 mi away
55/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.8★ from 46 Google reviews, listed on Google as “Plumber”.
Based in Lake Villa, 15 mi away
55/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.8★ from 284 Google reviews, listed on Google as “Plumber”.
Based in Kenosha, 7 mi away
55/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.9★ from 50 Google reviews, listed on Google as “Plumber”.
Based in Kenosha, 4 mi away
54/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.6★ from 27 Google reviews, listed on Google as “Septic system service”.
Based in Deerfield, 20 mi away
54/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.9★ from 384 Google reviews, listed on Google as “Plumber”.
Based in Wheeling, 23 mi away
54/100CR ScoreRanked #18 because of its Google rating and review volume: 4.7★ from 1,332 Google reviews.
Based in Burlington, 16 mi away
54/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Septic system service”.
Based in Racine, 18 mi away
54/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.8★ from 282 Google reviews, listed on Google as “Plumber”.
Based in Northbrook, 23 mi away
54/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.8★ from 751 Google reviews, listed on Google as “Plumber”.
Based in Lincolnshire, 19 mi away
54/100CR ScoreRanked #22 because of its Google rating and review volume: 4.9★ from 3,148 Google reviews.
Based in Fox Lake, 18 mi away
54/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 128 Google reviews, listed on Google as “Plumber”.
Based in Lake Villa, 12 mi away
54/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 44 Google reviews, listed on Google as “Plumber”.
Based in McHenry, 9 mi away
53/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 203 Google reviews, listed on Google as “Plumber”.
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 92 ranked septic service companies here; the rest are on their profiles.
Also serving Zion
14 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 Better Plumber & Sewer Company Inc. | 5.0★ (1) | 24 mi |
| Apex Plumbing Pros LLC | 5.0★ (2) | 19 mi |
| Berts Sewer and Drain Cleaning | 1.0★ (1) | 9 mi |
| Berts Sewer and Drain Cleaning | 18 mi | |
| Central Plumbing, Heating & Cooling Co. | 24 mi | |
| Illinois Sewer & Drain Inc | 5.0★ (1) | 23 mi |
| Mainline Sewer & Septic | 5.0★ (2) | 14 mi |
| Northshore Sewer & Drain | 6 mi | |
| Ramon & Sons Sewer & Water Inc | In Zion | |
| Raudel And Son Serna Plumbing, Sewer, And Water | 5.0★ (1) | 14 mi |
| Rooter Rite Plumbing, Sewer & drainage | 5.0★ (1) | 16 mi |
| Speed Plumbing Sewer and Drainage Inc. | 5.0★ (2) | 16 mi |
| Tidy Tank Plumbing, Sewer, and Septic | 23 mi | |
| Yorkville Sewer Utility District | 21 mi |
How we ranked Zion septic service companies
We scored 92 Zion 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 Zion 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 Zion: frequently asked questions
Who is the best septic service company in Zion?
By CR Score, the highest-ranked septic service company in Zion, IL is Cahill Heating, Cooling, Electric, Plumbing & Sewer with a CR Score of 58/100. It has 5.0★ from 1,064 Google reviews. It is open 24/7. ABC Plumbing, Sewer, Heating, Cooling & Electric (#2) and Duane Blanton Plumbing, Sewer, Heating & Cooling (#3) follow. We ranked 92 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Zion?
ContractorsRanked ranks 92 septic service companies serving Zion, IL. 1 of them is based in Zion; the rest serve it from nearby towns. Another 14 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Zion are open 24/7?
47 ranked septic service companies in Zion post 24/7 hours. The highest-ranked are Cahill Heating, Cooling, Electric, Plumbing & Sewer (#1), ABC Plumbing, Sewer, Heating, Cooling & Electric (#2) and Duane Blanton Plumbing, Sewer, Heating & Cooling (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Zion work on weekends?
62 of 92 ranked septic service companies post Saturday hours and 51 post Sunday hours. The highest-ranked open Saturdays are Cahill Heating, Cooling, Electric, Plumbing & Sewer (#1), ABC Plumbing, Sewer, Heating, Cooling & Electric (#2) and Duane Blanton Plumbing, Sewer, Heating & Cooling (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Zion septic service companies have?
The median Google rating among 92 rated septic service companies in Zion is 4.9★, with a median of 50 reviews. ABC Plumbing, Sewer, Heating, Cooling & Electric has the most, 22,524 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 Zion count in this ranking?
Yes, if they are within 25 mi of the Zion 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 Zion
- November 2026: CR Scores recalculated for 92 septic service companies serving Zion.
- November 2026: 1 duplicate listing merged.
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