63/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.9★ from 151 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Best Septic Service Companies in Forest Grove, OR (2026)
32 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Forest Grove: West Side Drain and Septic, CR Score 63/100; 4.9★ from 151 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): West Side Drain and Septic, posts 24/7 hours; ranked #2 of 32.
- 7
Most-reviewed: Alchemy Plumbing & Drain Cleaning, 861 Google reviews at 4.9★, the most of 32 ranked; ranked #7.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
32 Forest Grove septic service companies are ranked here by CR Score, from ten published factors. 13 are open 24/7, 18 open Saturdays and 15 open Sundays, based on posted hours. The median Google rating is 4.9★ across 32 rated businesses.
Top 10 septic service companies in Forest Grove at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | West Side Drain and Septic | 63 | 4.9★ (151) | Hillsboro, 9 mi away | 24/7 | Overall |
| 2 | West Side Drain and Septic | 61 | 5.0★ (146) | Cornelius, 3 mi away | 24/7 | Emergencies |
| 3 | Insight Sanitary Services | 60 | 5.0★ (29) | Hillsboro, 8 mi away | 24/7 | — |
| 4 | West Side Drain and Septic | 60 | 4.9★ (800) | Hillsboro, 17 mi away | 24/7 | — |
| 5 | Wild Pine Plumbing | 59 | 4.9★ (100) | Portland, 22 mi away | 24/7 | — |
| 6 | Plumbing and Sewer Renewal Specialists | 58 | 5.0★ (539) | Portland, 18 mi away | Sat · Sun · Evenings | — |
| 7 | Alchemy Plumbing & Drain Cleaning | 57 | 4.9★ (861) | Lake Oswego, 20 mi away | 24/7 | Most reviews |
| 8 | West Side Drain and Septic | 56 | 5.0★ (81) | Tigard, 17 mi away | 24/7 | — |
| 9 | Proline Plumbing & Sewer - Vancouver | 55 | 4.5★ (534) | Vancouver, 25 mi away | 24/7 | — |
| 10 | M T Dunn Plumbing | 55 | 4.7★ (85) | Hillsboro, 8 mi away | 24/7 | — |
The 32 best septic service companies in Forest Grove, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Cornelius, 3 mi away
61/100CR ScoreRanked #2 because of its Google rating and review volume: 5.0★ from 146 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hillsboro, 8 mi away
60/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 29 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hillsboro, 17 mi away
60/100CR ScoreRanked #4 because of its Google rating and review volume: 4.9★ from 800 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Portland, 22 mi away
59/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.9★ from 100 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Portland, 18 mi away
58/100CR ScoreRanked #6 because of its Google rating and review volume: 5.0★ from 539 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lake Oswego, 20 mi away
57/100CR ScoreRanked #7 because of its Google rating and review volume: 4.9★ from 861 Google reviews, the most in Forest Grove.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Tigard, 17 mi away
56/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 81 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Vancouver, 25 mi away
55/100CR ScoreRanked #9 because of its Google rating and review volume: 4.5★ from 534 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hillsboro, 8 mi away
55/100CR ScoreRanked #10 because of its Google rating and review volume: 4.7★ from 85 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Tigard, 16 mi away
55/100CR ScoreRanked #11 because of its Google rating and review volume: 5.0★ from 403 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Newberg, 22 mi away
54/100CR ScoreRanked #12 because of its Google rating and review volume: 4.8★ from 398 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Portland, 25 mi away
52/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.9★ from 32 Google reviews, listed on Google as “Excavating contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#14 Proline Plumbing
Based in Portland, 25 mi away
52/100CR ScoreRanked #14 because of its Google rating and review volume: 4.7★ from 178 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hillsboro, 11 mi away
52/100CR ScoreRanked #15 because of its Google rating and review volume: 4.7★ from 47 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Saint Helens, 25 mi away
51/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.9★ from 17 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Vancouver, 24 mi away
51/100CR ScoreRanked #17 because of its Google rating and review volume: 5.0★ from 294 Google reviews.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in McMinnville, 22 mi away
50/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.7★ from 24 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hillsboro, 19 mi away
50/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.5★ from 16 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Clackamas, 24 mi away
50/100CR ScoreRanked #20 because of its Google rating and review volume: 4.9★ from 168 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
#21 American On Site
Based in Newberg, 16 mi away
50/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.7★ from 6 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in McMinnville, 20 mi away
49/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Portland, 24 mi away
48/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.3★ from 16 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Tualatin, 18 mi away
48/100CR ScoreRanked #24 because of its Google rating and trade focus: 2.4★ from 32 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Beaverton, 13 mi away
48/100CR ScoreRanked #25 because of its Google rating and review volume: 4.8★ from 45 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
All 32 septic service companies
#1 to #25 are shown in full above. Here are #26 to #32, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | O'Reiley's Drain & Plumbing | 48 | 3.1★ (10) | 17 mi |
| 27 | PDX Sewer Solutions | 48 | 5.0★ (34) | 24 mi |
| 28 | Sewer Surgeons NW LLC | 47 | 5.0★ (15) | 21 mi |
| 29 | NW Home Services LLC | 45 | 5.0★ (6) | 20 mi |
| 30 | Titan Plumbing Co | 45 | 4.5★ (18) | 17 mi |
| 31 | The Excavators LLC | 44 | 4.0★ (4) | 11 mi |
| 32 | Modern Plumbing | 44 | 4.1★ (23) | 19 mi |
Also serving Forest Grove
12 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 |
|---|---|---|
| D&F Drains, Sewers and More | 5.0★ (2) | 23 mi |
| Fuhriman Septic Design & Consulting | 20 mi | |
| MB Enterprises, Excavation & Sewer LLC | 5.0★ (2) | 25 mi |
| Patriot Fence and Excavation, LLC | 14 mi | |
| Plumbing Systems Solutions, Inc | 23 mi | |
| Portland Septic Pros | 22 mi | |
| Reece Johnson Paving & Excavation | 5.0★ (2) | 17 mi |
| River City Plumbing | 23 mi | |
| Septic Services in Portland | 21 mi | |
| Sewer & Drain Cleaning & Licensed Journeyman Plumber Portland Area Best Rates in Town | 24 mi | |
| United Rentals - Reliable Onsite Services | 5.0★ (1) | 24 mi |
| Valley Septic Services | 5.0★ (2) | 22 mi |
How we ranked Forest Grove septic service companies
We scored 32 Forest Grove 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 Forest Grove 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 Forest Grove: frequently asked questions
Who is the best septic service company in Forest Grove?
By CR Score, the highest-ranked septic service company in Forest Grove, OR is West Side Drain and Septic with a CR Score of 63/100. It has 4.9★ from 151 Google reviews. It is open 24/7. West Side Drain and Septic (#2) and Insight Sanitary Services (#3) follow. We ranked 32 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Forest Grove?
ContractorsRanked ranks 32 septic service companies serving Forest Grove, OR. Another 12 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Forest Grove are open 24/7?
13 ranked septic service companies in Forest Grove post 24/7 hours. The highest-ranked are West Side Drain and Septic (#1), West Side Drain and Septic (#2) and Insight Sanitary Services (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Forest Grove work on weekends?
18 of 32 ranked septic service companies post Saturday hours and 15 post Sunday hours. The highest-ranked open Saturdays are West Side Drain and Septic (#1), West Side Drain and Septic (#2) and Insight Sanitary Services (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Forest Grove septic service companies have?
The median Google rating among 32 rated septic service companies in Forest Grove is 4.9★, with a median of 40 reviews. Alchemy Plumbing & Drain Cleaning has the most, 861 reviews, and ranks #7. 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 Forest Grove count in this ranking?
Yes, if they are within 25 mi of the Forest Grove 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 Forest Grove
- November 2026: CR Scores recalculated for 32 septic service companies serving Forest Grove.
- November 2026: 1 duplicate listing merged.
More septic service companies and Forest Grove pages
Septic service companies near Forest Grove
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Other trades in Forest Grove
- Roofers in Forest Grove699 ranked
- Plumbers in Forest Grove246 ranked
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- Landscapers in Forest Grove98 ranked
- Handymen in Forest Grove40 ranked
- Kitchen remodelers in Forest Grove268 ranked
- Bathroom remodelers in Forest Grove264 ranked
- Flooring contractors in Forest Grove217 ranked
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- Deck builders in Forest Grove145 ranked
- Siding contractors in Forest Grove281 ranked
- Window installers in Forest Grove252 ranked
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- Insulation contractors in Forest Grove51 ranked
- Solar installers in Forest Grove78 ranked
- Garage door repair companies in Forest Grove57 ranked
- Foundation repair companies in Forest Grove69 ranked
- Tree services in Forest Grove150 ranked
- Masonry contractors in Forest Grove85 ranked
- Water damage restoration companies in Forest Grove315 ranked
- Home builders in Forest Grove356 ranked
- Demolition contractors in Forest Grove56 ranked
- Window cleaners in Forest Grove31 ranked
- Pressure washing companies in Forest Grove41 ranked
- Pest control companies in Forest Grove81 ranked
- Paving contractors in Forest Grove76 ranked
- Auto glass repair shops in Forest Grove74 ranked
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- All contractors in Forest Grove