ESI GroupSeptic service company in St. Thomas, ON
ESI Group is a septic service company at 43870 Talbot Line, St Thomas, ON N5P 3S7, ranked #1 of 24 septic service companies in St. Thomas and rated 4.9 from 248 Google reviews. Open Monday to Friday.
St. Thomas, ONUpdated 0 paid placements in any rankingHow we rank
Key facts
| Address | 43870 Talbot Line, St Thomas, ON N5P 3S7, St. Thomas, ONGet directions |
|---|---|
| Phone | (519) 207-0104 |
| Website | esigroup.ca |
| Hours | Monday to Friday: 8 AM – 4:30 PM |
| Google rating | 4.9 from 248 Google reviews |
Trades
Each trade shows the evidence we matched it on.
- Septicmain tradeGoogle main category
Service area
Serves St. Thomas and 4 towns within 40 km: Aylmer, Dorchester, London and Ingersoll.
Based in St. Thomas, ONView on map
Opening hours
| Day | Hours |
|---|---|
| Monday | 8 AM – 4:30 PM |
| Tuesday | 8 AM – 4:30 PM |
| Wednesday | 8 AM – 4:30 PM |
| Thursday | 8 AM – 4:30 PM |
| Friday | 8 AM – 4:30 PM |
| Saturday | Closed |
| Sunday | Closed |
- Open evenings — no
- Open Saturdays — no
- Open Sundays — no
Reviews
ContractorsRanked reviews
No ContractorsRanked reviews yet
4.9from 248 Google reviews
Hired ESI Group? Write a review
Questions about ESI Group
How is ESI Group ranked in St. Thomas?
ESI Group is ranked #1 of 24 septic service companies in St. Thomas by CR Score, with 59 out of 100 as of November 2026. The score weighs reputation, credentials, review volume, recency, availability, trade focus, proximity, claimed profile, partnered and ContractorsRanked reviews. No business can pay to change its rank.
What are ESI Group’s hours?
ESI Group is open Monday to Friday. Its listed hours are Monday to Friday, 8 AM – 4:30 PM. It is closed on Saturdays and closed on Sundays. Hours come from the business listing; holiday hours may differ.
What areas does ESI Group serve?
Serves St. Thomas and 4 towns within 40 km: Aylmer, Dorchester, London and Ingersoll. The list is based on the business's location and the usual service radius for septic and sewer service. Confirm your address is covered when you call.
What do Google reviews say about ESI Group?
ESI Group has a rating of 4.9 from 248 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.
How do I contact ESI Group?
Call ESI Group on (519) 207-0104. The business is at 43870 Talbot Line, St Thomas, ON N5P 3S7, St. Thomas, ON. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.
Own ESI Group? Claim this profile.
Claiming is free. Correct your hours, trades and service area. The CR Score is recalculated from corrected data; payment never changes it.
Compare nearby septic service companies
| Business | Rank | CR Score | Google rating | License verified | Saturday | Sunday | Distance away |
|---|---|---|---|---|---|---|---|
| ESI Group (this business) | — | 59 | 4.9 (248) | — | No | No | |
| DrainCam Plumbing | #2 | 59 | 4.9 (329) | — | Yes | Yes | 4.7 km |
| Jumbo Plumbing | #3 | 59 | 4.9 (318) | — | Yes | Yes | 4.3 km |