Best Septic Tank Installers near Saguenay, QC
1 of these companies is based in Saguenay; the others serve Saguenay from towns including Chicoutimi (2 km), Jonquière (14 km) and Saint-Ambroise (24 km).
2 open weekends · 5 rated 4.5+ · 4 show a licence
Data verified October 17, 2026
We are still growing
There are too few quality options within 25 km, so we have expanded area of coverage to up to 100 km from you. This includes Saguenay and several other cities.
Excavation JMY
“I recommend this company, great work, thank you”
Excavation L M R
“The service was good but the price was a little expensive.”
Fosse Septique Stéphane Boily
Excavation Denis Brisson Inc
“You are in good hands, they have a lot of experience.”
Sanidro Inc
“The best prices, very courteous secretary and the best operators!”
The 8 companies listed for Saguenay, QC design and install septic systems and replace failed leaching beds. Each company's own site is the source for its hours, licence claims and estimate policy. Ask who applies for the permit and who arranges the inspection before backfill.
Area overview: Saguenay, QC
7 of the 8 companies on this page have a rating, from 3.8 to 5.0 across 48 reviews; 5 are rated 4.5 or higher. 2 are open on Saturdays and 1 on Sundays. 4 show a licence on their websites. Domain records put 4 websites of the companies on this page at ten or more years old; the oldest dates from 2009. We have a website on file for all 8 of the companies on this page; 6 publish a contact page and 7 list a public email. We count these figures across the companies on this page; distances are straight-line, and hours and prices change, so confirm the details with the company before you book.
What should I look for on an installer's website?
All 8 listings link a website. Look for photographs of real installations rather than stock images, the tank and treatment brands they work with, and whether design and soil work are in house. A company that only digs will subcontract the part that actually gets approved.
Audrey Brisson Ing
Les Entreprises Nivelac Enr
Why these companies made our list
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