About Carroll’s service
Carroll's Service is a family operated septic and excavation contractor in Thunder Bay with more than 30 years of experience. Its team designs, installs and repairs septic systems for residential and commercial properties in Thunder Bay and surrounding areas, and it states it is licensed to design and install systems that meet local regulations. Installers are certified for Waterloo Biofilter, Eljen, Ecoflo and Infiltrator systems. Excavation and grading, land clearing, trenching, soil remediation, commercial site preparation, demolition, parking lot construction, hauling and snow removal round out the services. A letter of recommendation from the MTO is posted, and the company stands behind its work with a personal approach to customers. It also does foundation waterproofing and drainage solutions. Rated 4.6 from 11 Google reviews, 10 of them five stars.
Services and details
Works on septic systems
YesNew system installation
YesSystem design and permits
YesAdvanced or tertiary treatment
YesStates a licence or BCIN
YesCommercial and farm work
Yes
No information yet on septic tank pumping, leaching bed repair or replacement, septic inspections, maintenance programs, emergency service, in the OOWA member directory, cottage and seasonal properties, portable toilet rentals. The website did not say; call and ask.
Contact
- (807) 356-1811
- 1560 Hwy 61, Thunder Bay, ON P7J 1B4
- Website
- View on Google Maps
Hours
- Monday
- 8AM-7PM
- Tuesday
- 8AM-7PM
- Wednesday
- 8AM-7PM
- Thursday
- 8AM-7PM
- Friday
- 8AM-7PM
- Saturday
- 8AM-7PM
- Sunday
- Closed
Listing compiled from public sources on 2026-10-09. Report a correction or request removal. Back to septic companies in Thunder Bay.
