Vivier Excavation Inc.
“Very happy to have entrusted my work to this professional team.”
Best Septic Tank Installers near Shawinigan, QC
2 of these companies are based in Shawinigan; the others serve Shawinigan from towns including Trois-Rivières (29 km), Saint-Paulin (25 km) and Saint-Adelphe (31 km).
2 open weekends · 8 rated 4.5+ · 3 show a licence
Data verified October 18, 2026
Excavation RMG
“Demolition of my house very well done with punctuality and perfect execution by the employees.”
Mario Cossette Inc
D. de Montigny et Fils Inc
“Knows how to put us at ease in the face of the current situation and gives very good advice!”
Service Vacuum St-Paulin
“Very good service and price I recommend”
Marcel Guimond & Fils Inc
“Marcel Guimond gives us peace of mind, we know that we won't spend hours clearing snow from the parking lot.”
The 10 companies listed for Shawinigan, 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: Shawinigan, QC
9 of the 10 companies on this page have a rating, from 3.8 to 5.0 across 86 reviews; 8 are rated 4.5 or higher. 2 are open on Saturdays. 3 show a licence on their websites. 2 have ten or more years of experience, the longest 26 years. We have a website on file for 9 of the companies on this page; 8 publish a contact page and 6 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.
Why are installers from outside Shawinigan listed here?
2 of the 10 listings show an address in Shawinigan and the rest sit within 75 km. This is rural and cottage work, and equipped crews cover large territories. What matters more than distance is whether they regularly deal with the municipality or health unit that will approve and inspect your system.
Casaubon & Frères Inc
“Septic installation installer with exemplary quality of work.”
EBI Envirotech
Les Entreprises Hugo Bérard
“I do business with Hugo Bérard several times a year and he is always efficient and professional, I recommend without hesitation :)”
Transport Gaby Trepanier Inc
“A company that puts customer service first.”
Why these companies made our list
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