Best Septic Tank Installers near Joliette, QC
These companies serve Joliette from nearby bases in towns including Sainte-Julienne, Saint-Alphonse-Rodriguez and Saint-Thomas.
10 companies listed · 5 open weekends · 7 rated 4.5+ · 3 show a licence
Data verified October 18, 2026
Sani Environnement Inc
Techfirme
Les Entreprises Hugo Bérard
Les Services Pro-Bel
Plomberie J. Lavoie et Filles à Saint-Alphonse-Rodriguez
The 10 companies listed for Joliette, 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: Joliette, QC
8 of the 10 companies on this page have a rating, from 3.8 to 5.0 across 160 reviews; 1 has 50 or more reviews and 7 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (91%), quality (44%) and responsiveness (44%). 5 are open on Saturdays and 3 on Sundays. 3 show a licence on their websites. Domain records put 2 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 8 of the companies on this page; 5 publish a contact page and 7 list a public email. We count these figures across the companies on this page; hours and prices change, so confirm the details with the company before you book.
What should I look for on an installer's website?
8 of the 10 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.