Septic Tank Prices in Montreal

5 services from C$330 · Montreal, Quebec

Septic Tank Prices in Montreal

Prices exclude provincial sales tax (GST/HST varies by province). Septic regulations are provincially administered and vary significantly — always consult your municipal building department or provincial authority before any installation or modification.

Filter by price range$330 – $38,500
$330$38,500
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Septic tank prices in Montreal

Septic Tank Tips for Montreal

Montreal's Laurentians and Eastern Townships cottage country have widespread septic use — Quebec's Q-2, r. 22 regulation governs all onsite sewage systems

Quebec requires a licensed sanitation engineer (technologue) to design any new septic system and a licensed contractor to install it — ensure both are properly credentialled

Montreal area's deep frost (up to 2m) and heavy clay soils in many areas can complicate both installation and ongoing performance — get a thorough soil evaluation before any new installation

Key Services at a Glance — Montreal

Pump-Out

C$495

avg · C$330C$770

Septic tank pump-out

New Installation

C$15,400

avg · C$7,700C$27,500

Complete septic system

AWTS / Treatment

C$23,100

avg · C$13,200C$38,500

Aerated treatment system

Septic tank pump-out in Montreal starts from C$330. Pump-out services average C$495 in Montreal. Prices exclude provincial sales tax (GST/HST varies by province). Septic regulations are provincially administered and vary significantly — always consult your municipal building department or provincial authority before any installation or modification.

Septic tank services in Montreal include pump-outs, new installations, system replacements, septic to sewer conversions, compliance inspections, absorption trench repairs, aerated treatment system installations, and effluent pump replacements. New installations in Montreal average C$15,400.

A new septic system in Montreal costs C$7,700–C$27,500, averaging C$15,400. An aerated treatment system (AWTS) costs C$13,200–C$38,500. Prices exclude provincial sales tax (GST/HST varies by province). Septic regulations are provincially administered and vary significantly — always consult your municipal building department or provincial authority before any installation or modification.

Check online reviews on Google and local trade directories. Verify the contractor holds a current plumber's licence and is licensed to handle liquid waste in your state or territory. For new installations, confirm the contractor is familiar with your local council's approval process. Get at least two quotes for major work. Ask about their experience with your soil type and any council-specific requirements in Montreal.