Halton Region supplies and prices water. Oakville Hydro bills it.
Who provides water and sewers, and who sends the bill?
Halton Region supplies drinking water and treats wastewater for Oakville, and sets the rates. It bills through the local hydro utility, so in Oakville the water and wastewater charges appear on your Oakville Hydro bill and are paid through the same account. Residential meters are read and billed every two months. There is no separate Regional water account to open.
Source: Halton Region, Water bills, rates and fees
What do water and wastewater cost in 2026?
Effective January 1, 2026, a home with a 20 mm or smaller meter pays a combined fixed service charge of $40.67 a month plus $3.3441 per cubic metre (1,000 litres) of water used. The Region's example for a household using 38 cubic metres in two months, about the Halton average, is $208.42 for the two-month bill. Larger meters pay higher fixed charges, listed on the Region's rate card.
Rates change each January 1. The Region says the 2026 combined rate rose 6.0 per cent.
Source: Halton Region, 2026 water and wastewater rates
Who is responsible for the water bill, the owner or the tenant?
The Region says property owners are responsible for all water charges on their property, including a tenant's use. An owner can assign a third party such as a tenant or property manager to hold the account, but unpaid water and wastewater charges can still be added to the property tax bill and collected from the owner. When property changes hands, ask Oakville Hydro for the final meter reading and transfer information, which includes unpaid charges and known compliance issues. If you do not, balances and compliance issues transfer to the buyer.
Whether a tenant pays the owner for water is set by the lease, which the Region's pages do not cover.
Source: Halton Region, Property owners and tenants
What is happening with water meters in Oakville?
Halton is replacing analog meters with a wireless system, called Advanced Metering Infrastructure, that sends readings to the Region six times a day so no one has to visit to read them. For Oakville the Region lists a pilot starting mid-2026 and a full roll-out starting in 2026, with upgrades through 2026 and 2027. Everyone gets a letter first, and the Region says to wait for it before acting. Its contractor is KTI Utility Services (1-833-543-8807). A replacement needs an adult 18 or older at home, takes 30 to 60 minutes and shuts the water off for 15 to 20 minutes; a transmitter-only visit needs no one home. Technicians carry Halton Region photo ID, wear KTI uniforms and drive vehicles marked with Halton Region Contractor magnets, and the Region says they never enter without an appointment. For a leaking, noisy or malfunctioning meter, email accesshalton@halton.ca or call 311.
The Region does not publish a street-by-street Oakville schedule on the page; the notice letter and the Region's project map are the source.
Source: Halton Region, Modernization of water meter infrastructure in Halton
My water bill is high. What should I check?
The Region says an average Halton household uses about 38 cubic metres every two months and the most common cause of high use, apart from seasonal watering, is an undetected leak such as a running toilet. Read the meter, usually next to the main shut-off in the basement or crawl space, with no water in use; if the low-flow indicator or sweep hand moves, there may be a leak. If you cannot explain the use, email accesshalton@halton.ca for a meter-testing form. The test is done by a third party and takes up to four weeks. The 2026 average fee for a small residential meter is $1,000 to $1,200, refunded if the meter over-registers by more than 2 per cent.
Keep paying the account while a test is under way, or set up a payment agreement; the Region asks for this.
Source: Halton Region, Water meters
Who fixes a frozen or leaking water service line?
The Region is responsible for the service line from the watermain under the street up to and including the curb stop, usually just outside the property line. The owner is responsible from the curb stop into the home, all indoor plumbing, and keeping the meter from freezing. If only some fixtures have no water, the Region says the problem is probably inside and to call a licensed plumber; if none do, the service line may be frozen, so call 311 and clear snow from the curb box. Thawing is free if the frozen section is on Region property; if it is only on private property, the 2026 fee is $663.05 for a 15 to 25 mm line.
Condominium and townhouse complexes may have jointly owned lines beyond the curb stop; check with the property manager.
Source: Halton Region, Frozen water pipes
What do I do if my basement floods?
If anyone is in danger, call 911. Keep people and pets away from wastewater, shut off electricity only if water is near outlets or the panel and it is safe, and do not use toilets or sinks until the source of the backup is known. Take photos and video, then report to Halton Region: online for a rainfall event, or at 311 for a dry-weather flood. Report flooding on a street or road to the Town. Tell your insurer. The Region offers a $1,000 Residential Basement Flooding Grant to eligible owners and tenants for a storm-induced wastewater surcharge or a blockage on the Region's side, if the flood was reported to the Region and the application is made within one year.
The Region says staff do not make in-home visits during extreme weather and rely on the online form. Tap water stays safe to drink during a flood, as the drinking water system is separate.
Source: Halton Region, Flood response and reporting
Does Halton help pay to prevent basement flooding?
Yes. The Basement Flooding Prevention Subsidy Program covers work such as a backwater valve, downspout disconnection, exterior storm drain disconnection, sewer lateral lining and repair, and weeping tile disconnection with a sump pump. A free Household Drainage Survey is offered to homes built from the mid-1950s to the late 1970s that have reported flooding from a wastewater surcharge and sit in a Region-defined priority area; ask at hhds@halton.ca or 311. Other homes need an assessment by a licensed plumber, whose cost can be counted in the subsidy. Read the homeowner guide before starting work.
Subsidy amounts and rules are in the Region's program guides and can change; this page does not repeat dollar limits.
Source: Halton Region, Flood preparedness and reducing your risk
What is the stormwater charge on my tax bill?
In 2026 the Town of Oakville introduced a dedicated stormwater fee. It appears on the property tax bill under Special Charges and replaces the part of property taxes that used to pay for stormwater. For homes it is a fixed annual amount by home type, phased in at 50 per cent in 2026, 75 per cent in 2027 and 100 per cent in 2028. The 2026 amounts are $137 for a detached home, $64 for a semi-detached home and $30 for a townhome, condo or apartment. Full rates are $273, $128 and $60. It does not depend on pools, paving or rain barrels. A lookup tool shows the fee for an address, and a review can be requested if the property type is wrong.
The rates are set by by-law and may be updated by Council. Non-residential properties pay by hard surface area on a different phase-in.
Source: Town of Oakville, Stormwater fee