From EPCOR, for a valve installed by a plumber with a City permit. June 20–21, 2026: 102 mm of rain and 600+ flooding calls.
[1] EPCOR (updated Aug 31, 2026) · Global News, June 22, 2026[01] Backwater valves in Edmonton, AB · 24/7 dispatch lineUpdated
Backwater valvesin Edmonton,dispatched now.
Backwater valves installed with the City plumbing permit, so you can claim EPCOR’s subsidy of up to $800. EPCOR says valves were not required in homes built before 1989. In the June 20–21, 2026 storm, 102 mm of rain fell on the city core and EPCOR took more than 600 flooding calls.
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What Edmonton means for backwater valves.
Sources numbered · checked Oct 2026
Backwater valve subsidy$800 max
Backwater valve required since1989
EPCOR says valves were not required in Edmonton homes built before 1989; most homes built after 1988 have a sump pump.
[2] EPCORHomes built 1980 or earlier40.5%
Of Edmonton's 396,400 occupied homes. EPCOR's backwater valve subsidy targets homes built before 1989.
[3] Statistics Canada, 2021 Census · EPCOREdmonton prices for backwater valves.
Published prices from Edmonton plumbers and Canadian cost guides, 2026 · your plumber confirms the price before work starts
$0$2,000$4,000$6,000
- Backwater valve, installedThe Plumbing Pros Edmonton$3,000–$5,000
Edmonton plumber, published price
Backwater valve
Typical in Edmonton$3,000–$5,000Installed · Edmonton plumber- EPCOR subsidy: up to $800 back
- City of Edmonton plumbing permit required
- Aimed at homes built before 1989 or with past backups
- A Canadian guide lists $1,000–$2,000: get a written quote
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Edmonton and the towns around it.
Every town has its own page, with its own sourced facts.
Statistics Canada, 2021 Census (Edmonton: July 1, 2025 estimate; Sherwood Park: Strathcona County) · straight-line distance from downtown
Asked about backwater valves in Edmonton.
Answers checked Oct 2026 · sources under each answer
- Q.01
Is there a subsidy for a backwater valve?
Yes. EPCOR pays up to $800 toward a backwater valve installed by a professional plumber with a City permit, mainly for homes built before 1989 or homes that have had sewer backups.
Source: EPCOR Backwater Valve Subsidy, updated Aug 31, 2026 - Q.02
Do I need a permit to install a backwater valve?
Yes. Installing a backwater valve in Edmonton requires a plumbing permit: $120 per address plus a minimum $4.80 safety codes fee in 2026. EPCOR’s subsidy claim needs the City permit sticker and a paid invoice.
Source: City of Edmonton · EPCOR - Q.03
Who maintains the backwater valve?
The homeowner. Edmonton homeowners maintain and repair the sewer lines on their property, including any backwater valve; EPCOR is responsible for the pipe from the property line to the sewer main.
Source: EPCOR - Q.04
Does Strathcona County have its own rebate?
Yes. Strathcona County, which includes Sherwood Park, rebates up to 50% of a backwater valve’s supply and installation cost, to a maximum of $1,200.
Source: Strathcona County