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Septic Replacement in Alberta

Needs filtering — large unfiltered list · 33 providers

Removal and replacement of an existing septic system.

When to use: Failed or outdated septic system replacement.

Duration: 1–3 weeks
Typical size: Residential systems
Permits: Municipal approval required

Scope of work

Old system removal
Site assessment
New system design
Installation
Inspection

How this works in Alberta

A failed field or tank is a health and sale problem. Replacement is how the property becomes usable again instead of a liability.

Replacing a whole system is a new installation on a site that already has history. The new design must meet the current 2021 Standard of Practice, not the rules in force when the old system was built, and that is where many replacement jobs get complicated: an old field may sit closer to the well, a house or a property line than today's setbacks allow, so the new field often has to go somewhere else on the lot.

Before deciding to replace, confirm that the system cannot be fixed. Alberta Municipal Affairs advises owners to get an appropriate assessment to determine whether an existing system can be remediated. Where the design is unchanged (same bedrooms, fixtures and peak flow), swapping equipment for similar units does not need a provincial permit. Replacing the treatment system itself does need a permit, as does any increase in design flow from a renovation.

Use the replacement to correct what caused the failure: undersizing after bedrooms were added, surface water running onto the field, buried lids that discouraged pumping, or a missing effluent filter or alarm. The new system will come with an operations and maintenance manual; follow its service schedule.

Typical cost in Alberta

No published Alberta source prices replacement as a separate job. The full-system ranges below are the closest published figures; removing or abandoning the old system is extra.

Item	Range	Source	Type
Conventional system, installed	$14,000–$36,000 per system	Cramer's Breaking – Septic tank cost Alberta 2026 (commercial)	Commercial estimate · 2026-04-28
Mound system, installed	$26,000–$60,000+ per system	Cramer's Breaking – Septic tank cost Alberta 2026 (commercial)	Commercial estimate · 2026-04-28
Conventional system, installed	$30,000–$60,000 per system	Koomen Contracting – Septic system costs Alberta (commercial)	Commercial estimate · 2024-03-25
Complex system (poor soil, high groundwater or difficult access)	$40,000–$100,000+ per system	Tanks-A-Lot – Septic tank cost Alberta (commercial)	Commercial estimate

Commercial figures for new installations, not replacement quotes. There is no Land Intelligence planning estimate for this package, and no sourced figure for removing an old tank or field.

Ranges are planning figures from the sources shown, not quotes. Get written quotes for your site.

Alberta rules and permits

A permit is required for a new private sewage system, for the replacement of an existing treatment system, and where an existing design is increased or altered (for example, for larger peak flows after a renovation). Replacing equipment with units of a similar type does not need a provincial permit, but the local authority having jurisdiction may set its own permit requirement. (Alberta Municipal Affairs Notice – Remediation of Existing Sewage Treatment Systems (effective 2020-08-25))
A permit for a private sewage system can only be obtained by a contractor holding a current certificate of competency: a full Private Sewage Certificate covers all system types; a Restricted Private Sewage Certificate covers holding tank systems only. (ALIS (Government of Alberta) – Private Sewage Systems Installer certification)
A system may not be installed where there is not enough area to meet all minimum distances, or no location with suitable soil; in that case a holding tank may be installed, subject to the municipality's determination (Art. 2.1.2.1). (Alberta Private Sewage Systems Standard of Practice 2021 (Safety Codes Council))
Treatment field setbacks under the current Standard: 15 m from a well, 15 m from a water course, 1.5 m from a property line, 10 m from a basement or crawl space, 5 m from a building without a basement, 5 m from the septic tank (Art. 8.2.2.1). (Alberta Private Sewage Systems Standard of Practice 2021 (Safety Codes Council))
The owner must ensure the system is maintained, operated within its design parameters and effectively treats the wastewater (Art. 2.1.2.2). (Alberta Private Sewage Systems Standard of Practice 2021 (Safety Codes Council))

Sizing and planning

Size the replacement for the house as it is now, not as it was when the old system was built: 1.5 persons per bedroom × 340 L per day for 3 or more bedrooms (Table 2.2.2.2.A), plus any added fixtures (Art. 2.2.2.3).
New tank minimums are 3,360 L for 1–3 bedrooms up to 6,130 L for 6 (Table 4.2.2.2); an older, smaller tank may not be reusable.
A new site evaluation with at least two soil profiles is needed for the new soil-based component (Art. 7.1.2.1).

Alberta providers

33 providers on file — Needs filtering — large unfiltered list. Showing 7 first (verified and located listings first). Confirm relevance and service area before you contact anyone.

Alberta Certified Septic Services Inc.

UNCLAIMED Capability verified

www.albertacertifiedseptic.com · 780-918-5712 · Ardrossan, AB

Service area: Alberta