60/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.8★ from 58 Google reviews, listed on Google as “Septic system service”.
Best Septic Service Companies in Denver, CO (2026)
81 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Denver: Search Septic Sewer Service, CR Score 60/100; 4.8★ from 58 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): AAA Service Plumbing, Heating & Electric, posts 24/7 hours; ranked #2 of 81.
- 2
Most-reviewed: AAA Service Plumbing, Heating & Electric, 12,904 Google reviews at 4.8★, the most of 81 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
81 Denver septic service companies are ranked here by CR Score, from ten published factors. 27 are open 24/7, 50 open Saturdays and 34 open Sundays, based on posted hours. The median Google rating is 4.8★ across 81 rated businesses.
Top 10 septic service companies in Denver at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Search Septic Sewer Service | 60 | 4.8★ (58) | Denver | 24/7 | Overall |
| 2 | AAA Service Plumbing, Heating & Electric | 59 | 4.8★ (12,904) | Golden, 10 mi away | 24/7 | Emergencies, Most reviews |
| 3 | King Rooter & Plumbing | Plumbers Denver, CO | Drain Cleaning | Sewer & Water Line | Tankless Water Heater Repair | 59 | 4.7★ (479) | Denver | 24/7 | — |
| 4 | Garvin's Plumbing and Sewer | 59 | 4.8★ (815) | Englewood, 5 mi away | 24/7 | — |
| 5 | Mr. Rooter Plumbing of Denver | 58 | 4.7★ (2,079) | Denver | 24/7 | — |
| 6 | Ley Septic LLC | 58 | 5.0★ (277) | Denver | — | — |
| 7 | Colorado Pumping | 58 | 5.0★ (111) | Aurora, 3 mi away | 24/7 | — |
| 8 | Triple S Sanitary Sewer Services LLC | 57 | 4.9★ (245) | Denver | 24/7 | — |
| 9 | Denver Sewer And Water | 57 | 4.8★ (22) | Denver | Sat · Sun | — |
| 10 | Sveagle Plumbing, Heating, and Cooling | 57 | 4.8★ (496) | Denver | 24/7 | — |
The 81 best septic service companies in Denver, 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 Golden, 10 mi away
59/100CR ScoreRanked #2 because of its Google rating and review volume: 4.8★ from 12,904 Google reviews, the most in Denver.
Based in Denver
59/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.7★ from 479 Google reviews, listed on Google as “Plumber”.
Based in Englewood, 5 mi away
59/100CR ScoreRanked #4 because of its Google rating and review volume: 4.8★ from 815 Google reviews.
Based in Denver
58/100CR ScoreRanked #5 because of its Google rating and review volume: 4.7★ from 2,079 Google reviews.
Based in Denver
58/100CR ScoreRanked #6 because of its Google rating and trade focus: 5.0★ from 277 Google reviews, listed on Google as “Septic system service”.
Based in Aurora, 3 mi away
58/100CR ScoreRanked #7 because of its Google rating and trade focus: 5.0★ from 111 Google reviews, listed on Google as “Septic system service”.
Based in Denver
57/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.9★ from 245 Google reviews, listed on Google as “Plumber”.
Based in Denver
57/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.8★ from 22 Google reviews, listed on Google as “Septic system service”.
Based in Denver
57/100CR ScoreRanked #10 because of its Google rating and review volume: 4.8★ from 496 Google reviews.
Based in Denver
56/100CR ScoreRanked #11 because of its Google rating and review volume: 4.6★ from 776 Google reviews.
Based in Westminster, 9 mi away
56/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.9★ from 172 Google reviews, listed on Google as “Plumber”.
Based in Denver
56/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 33 Google reviews, listed on Google as “Plumber”.
Based in Denver
56/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.8★ from 45 Google reviews, listed on Google as “Plumber”.
Based in Denver
56/100CR ScoreRanked #15 because of its Google rating and review volume: 4.9★ from 525 Google reviews.
Based in Thornton, 4 mi away
55/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 26 Google reviews, listed on Google as “Septic system service”.
Based in Wheat Ridge, 5 mi away
55/100CR ScoreRanked #17 because of its Google rating and review volume: 4.8★ from 363 Google reviews.
Based in Golden, 2 mi away
55/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.8★ from 359 Google reviews, listed on Google as “Plumber”.
Based in Columbine, 9 mi away
55/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.9★ from 75 Google reviews, listed on Google as “Plumber”.
Based in Commerce City, 5 mi away
55/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.8★ from 160 Google reviews, listed on Google as “Plumber”.
Based in Aurora, 6 mi away
55/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 41 Google reviews, listed on Google as “Plumber”.
Based in Denver
55/100CR ScoreRanked #22 because of its Google rating and review volume: 4.6★ from 222 Google reviews.
#23 Sewer Lines Only
Based in Lakewood, 4 mi away
55/100CR ScoreRanked #23 because of its Google rating and review volume: 4.9★ from 960 Google reviews.
Based in Thornton, 7 mi away
55/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Septic system service”.
Based in Centennial, 10 mi away
54/100CR ScoreRanked #25 because of its Google rating and review volume: 5.0★ from 203 Google reviews.
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 81 ranked septic service companies here; the rest are on their profiles.
Also serving Denver
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.
| Business | Google rating | Distance |
|---|---|---|
| A-Acme Sanitary & Sewer Services | 5.0★ (2) | In Denver |
| Boulder Plumbing & Mechanical | 1.0★ (1) | In Denver |
| Denver Pumpers | 3.0★ (5) | In Denver |
| Drain Genius, Llc | 3.4★ (5) | In Denver |
| Ferguson Plumbing Supply | 3.9★ (69) | In Denver |
| Hydro Physics Pipe Inspection | 3.7★ (19) | In Denver |
| Lucas Brothers Plumbing | 4.9★ (95) | In Denver |
| M&N Plumbing Supply Company | 4.4★ (29) | In Denver |
| McDonald Farms Enterprises Inc. | 5.0★ (1) | In Denver |
| MLS Sprinklers & Sod | In Denver | |
| Mr. Plumber | 4.2★ (19) | In Denver |
| Mr. Preventative Sewer & Drain | In Denver | |
| Owen & Sons Plumbing & Water Heaters LLC | 4.8★ (76) | In Denver |
| Rampart Supply | 4.7★ (170) | In Denver |
| Reece Plumbing | 3.9★ (34) | In Denver |
| Right Price Plumbers | 5.0★ (2) | In Denver |
| SERVPRO of Denver Northeast | 5.0★ (20) | In Denver |
| The Home Depot | 3.9★ (2,460) | In Denver |
| The Showroom at Rampart Supply | 4.6★ (171) | In Denver |
| Umbrella Plumbing and Drain Cleaning LLC | 3.8★ (36) | In Denver |
How we ranked Denver septic service companies
We scored 81 Denver 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 10, 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 Denver 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 Denver: frequently asked questions
Who is the best septic service company in Denver?
By CR Score, the highest-ranked septic service company in Denver, CO is Search Septic Sewer Service with a CR Score of 60/100. It has 4.8★ from 58 Google reviews. It is open 24/7. AAA Service Plumbing, Heating & Electric (#2) and King Rooter & Plumbing | Plumbers Denver, CO | Drain Cleaning | Sewer & Water Line | Tankless Water Heater Repair (#3) follow. We ranked 81 septic service companies on ten factors, last updated November 10, 2026.
How many septic service companies are there in Denver?
ContractorsRanked ranks 81 septic service companies serving Denver, CO. 18 of them are based in Denver; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Denver are open 24/7?
27 ranked septic service companies in Denver post 24/7 hours. The highest-ranked are Search Septic Sewer Service (#1), AAA Service Plumbing, Heating & Electric (#2) and King Rooter & Plumbing | Plumbers Denver, CO | Drain Cleaning | Sewer & Water Line | Tankless Water Heater Repair (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Denver work on weekends?
50 of 81 ranked septic service companies post Saturday hours and 34 post Sunday hours. The highest-ranked open Saturdays are Search Septic Sewer Service (#1), AAA Service Plumbing, Heating & Electric (#2) and King Rooter & Plumbing | Plumbers Denver, CO | Drain Cleaning | Sewer & Water Line | Tankless Water Heater Repair (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Denver septic service companies have?
The median Google rating among 81 rated septic service companies in Denver is 4.8★, with a median of 33 reviews. AAA Service Plumbing, Heating & Electric has the most, 12,904 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 Denver count in this ranking?
Yes, if they are within 25 mi of the Denver 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 Denver
- November 2026: CR Scores recalculated for 81 septic service companies serving Denver.
More septic service companies and Denver pages
Septic service companies near Denver
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