60/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.9★ from 43 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 Wilmington Island, GA (2026)
21 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Wilmington Island: Southbound Septic, CR Score 60/100; 4.9★ from 43 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Fireline Septic Services LLC, posts 24/7 hours; ranked #2 of 21.
- 4
Most-reviewed: Thompson & Thompson Service Group, 3,238 Google reviews at 4.9★, the most of 21 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
21 Wilmington Island septic service companies are ranked here by CR Score, from ten published factors. 10 are open 24/7, 14 open Saturdays and 11 open Sundays, based on posted hours. The median Google rating is 4.9★ across 21 rated businesses.
Top 10 septic service companies in Wilmington Island at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Southbound Septic | 60 | 4.9★ (43) | Savannah, 7 mi away | 24/7 | Overall |
| 2 | Fireline Septic Services LLC | 59 | 5.0★ (46) | Savannah, 10 mi away | 24/7 | Emergencies |
| 3 | Septic Works of the Lowcountry | 59 | 4.9★ (113) | Savannah, 16 mi away | 24/7 | — |
| 4 | Thompson & Thompson Service Group | 58 | 4.9★ (3,238) | Savannah, 14 mi away | 24/7 | Most reviews |
| 5 | Reliable Septic Services Inc. | 58 | 4.9★ (88) | Savannah, 5 mi away | Sat | — |
| 6 | Collins Septic Tank Service Inc | 57 | 4.9★ (30) | Bluffton, 16 mi away | 24/7 | — |
| 7 | A 1 Septic Tank Service Inc. | 57 | 5.0★ (17) | Savannah, 14 mi away | 24/7 | — |
| 8 | Huggins Waste Services | 56 | 4.3★ (22) | Savannah, 12 mi away | 24/7 | — |
| 9 | Open Water Septic Tank Services | 56 | 5.0★ (58) | Savannah, 18 mi away | Sat · Sun · Evenings | — |
| 10 | Drain Doctor LLC – Drain & Sewer Experts | 56 | 5.0★ (199) | Port Wentworth, 19 mi away | 24/7 | — |
The 21 best septic service companies in Wilmington Island, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Savannah, 10 mi away
59/100CR ScoreRanked #2 because of its Google rating and trade focus: 5.0★ from 46 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Savannah, 16 mi away
59/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 113 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Savannah, 14 mi away
58/100CR ScoreRanked #4 because of its Google rating and review volume: 4.9★ from 3,238 Google reviews, the most in Wilmington Island.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Savannah, 5 mi away
58/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.9★ from 88 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bluffton, 16 mi away
57/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.9★ from 30 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Savannah, 14 mi away
57/100CR ScoreRanked #7 because of its Google rating and trade focus: 5.0★ 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 Savannah, 12 mi away
56/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.3★ from 22 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Savannah, 18 mi away
56/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 58 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Port Wentworth, 19 mi away
56/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 199 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Savannah, 1 mi away
56/100CR ScoreRanked #11 because of its Google rating and trade focus: 5.0★ from 32 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#12 Boyds Septic
Based in Savannah, 23 mi away
56/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 38 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Garden City, 13 mi away
53/100CR ScoreRanked #13 because of its Google rating and review volume: 4.6★ from 248 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Richmond Hill, 20 mi away
53/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.8★ from 26 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Pooler, 15 mi away
52/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Savannah, 21 mi away
51/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.5★ from 21 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Savannah, 13 mi away
51/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hilton Head Island, 24 mi away
50/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.3★ from 42 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Savannah, 14 mi away
50/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.2★ from 13 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Savannah, 4 mi away
50/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.7★ from 3 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Pooler, 16 mi away
47/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Utility contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Also serving Wilmington Island
5 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 |
|---|---|---|
| Clark Services | 25 mi | |
| Emergency Septic Tank Service | 14 mi | |
| Plumbing Central | 19 mi | |
| Savannah Sewer Repair | In Wilmington Island | |
| Shamgar Inc. | 5.0★ (2) | 25 mi |
How we ranked Wilmington Island septic service companies
We scored 21 Wilmington Island 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 Wilmington Island 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 Wilmington Island: frequently asked questions
Who is the best septic service company in Wilmington Island?
By CR Score, the highest-ranked septic service company in Wilmington Island, GA is Southbound Septic with a CR Score of 60/100. It has 4.9★ from 43 Google reviews. It is open 24/7. Fireline Septic Services LLC (#2) and Septic Works of the Lowcountry (#3) follow. We ranked 21 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Wilmington Island?
ContractorsRanked ranks 21 septic service companies serving Wilmington Island, GA. Another 5 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Wilmington Island are open 24/7?
10 ranked septic service companies in Wilmington Island post 24/7 hours. The highest-ranked are Southbound Septic (#1), Fireline Septic Services LLC (#2) and Septic Works of the Lowcountry (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Wilmington Island work on weekends?
14 of 21 ranked septic service companies post Saturday hours and 11 post Sunday hours. The highest-ranked open Saturdays are Southbound Septic (#1), Fireline Septic Services LLC (#2) and Septic Works of the Lowcountry (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Wilmington Island septic service companies have?
The median Google rating among 21 rated septic service companies in Wilmington Island is 4.9★, with a median of 32 reviews. Thompson & Thompson Service Group has the most, 3,238 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 Wilmington Island count in this ranking?
Yes, if they are within 25 mi of the Wilmington Island 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 Wilmington Island
- November 2026: CR Scores recalculated for 21 septic service companies serving Wilmington Island.
More septic service companies and Wilmington Island pages
Septic service companies near Wilmington Island
- Septic service companies in Savannah, GA31 ranked
- Septic service companies in Georgetown, GA25 ranked
- Septic service companies in Pooler, GA28 ranked
- Septic service companies in Richmond Hill, GA25 ranked
- Septic service companies in Hinesville, GA13 ranked
- Septic service companies in Statesboro, GA12 ranked
Other trades in Wilmington Island
- Roofers in Wilmington Island195 ranked
- Plumbers in Wilmington Island100 ranked
- Electricians in Wilmington Island89 ranked
- HVAC contractors in Wilmington Island154 ranked
- General contractors in Wilmington Island155 ranked
- Painters in Wilmington Island52 ranked
- Landscapers in Wilmington Island61 ranked
- Handymen in Wilmington Island37 ranked
- Kitchen remodelers in Wilmington Island86 ranked
- Bathroom remodelers in Wilmington Island81 ranked
- Flooring contractors in Wilmington Island89 ranked
- Tile installers in Wilmington Island9 ranked
- Drywall contractors in Wilmington Island7 ranked
- Concrete contractors in Wilmington Island62 ranked
- Fence contractors in Wilmington Island32 ranked
- Deck builders in Wilmington Island42 ranked
- Siding contractors in Wilmington Island38 ranked
- Window installers in Wilmington Island45 ranked
- Gutter installers in Wilmington Island73 ranked
- Insulation contractors in Wilmington Island28 ranked
- Solar installers in Wilmington Island17 ranked
- Garage door repair companies in Wilmington Island14 ranked
- Foundation repair companies in Wilmington Island16 ranked
- Tree services in Wilmington Island60 ranked
- Masonry contractors in Wilmington Island41 ranked
- Water damage restoration companies in Wilmington Island83 ranked
- Home builders in Wilmington Island159 ranked
- Demolition contractors in Wilmington Island11 ranked
- Window cleaners in Wilmington Island28 ranked
- Pressure washing companies in Wilmington Island44 ranked
- Pest control companies in Wilmington Island43 ranked
- Paving contractors in Wilmington Island25 ranked
- Auto glass repair shops in Wilmington Island24 ranked
- Excavating contractors in Wilmington Island18 ranked
- Pool builders in Wilmington Island62 ranked
- All contractors in Wilmington Island