Sump Pump Installation in North York, ON | OCM Excavation

OCM Excavation installs sump pump systems for homeowners across North York, ON. Heavy clay soil from Bayview Village to Downsview means groundwater doesn’t drain quickly — it sits and pressures the foundation until the pump pushes it out. We install complete systems: pit, primary cast-iron pump, 12V battery backup, and PVC discharge. North York basements get hit hardest during the March thaw and the November rain stretch, so battery backup isn’t a luxury here — it’s essential. Projects run $2,200 to $5,500. Call 416-317-3090.

How the System Works

Four parts. A perforated polyethylene pit sits flush in the basement floor, fed by your weeping tile and below-slab drainage. A float switch fires the primary pump when water hits a set level. Water pushes up through a check valve and out a PVC discharge line at least 10 feet from the foundation. The check valve keeps water from falling back into the pit when the pump shuts off — without it, you get a short-cycling motor that burns out within a year, especially in the high-water-table North York basements where it has to fire constantly.

The Four Components

Sump pit: 18-24 gallon polyethylene basin, perforated walls, set flush in the slab on gravel.
Primary pump: 1/3 to 1/2 hp submersible cast-iron pump, 30-50 gallons per minute. We size up for clay-soil North York lots.
Battery backup pump: 12V DC pump on a deep-cycle marine battery, 8-12 hours of runtime through a power outage.
Discharge line: 1.5″-2″ PVC pipe routed 10+ feet from the foundation, terminating at a splash block, swale, or storm sewer per Toronto rules (North York falls under the City of Toronto).

Why North York Basements Cycle So Often

The Don Mills, Willowdale, and Bathurst Manor neighbourhoods of North York sit on heavy clay glacial till. Clay holds water — it doesn’t drain it. After a heavy rain, the weeping tile keeps feeding the pit for hours even after the storm passes. A North York primary pump in a clay-soil lot will cycle 30-40 times per hour during a peak event, where the same pump in sandy Vaughan soil might cycle 8-10 times. That cycle rate is exactly why we recommend 1/2 hp cast-iron units instead of the 1/3 hp plastic pumps big-box stores push. Call 416-317-3090 and we’ll size the right pump for your North York lot.

When North York Homeowners Call Us

Floor cracks weep water during March thaw or November rain events.
Existing pump is over 10 years old or visibly rusted.
Buyer inspection failed the pump or noted no battery backup.
You just had foundation waterproofing done and need a working pit.
Power went out last storm and the basement took on water.

Our Process

Site visit first. We look at the existing pit, where water comes in, panel location, and where the discharge can go. If we’re cutting a new pit, the slab gets scored with a concrete saw, the concrete and soil come out to 30-36 inches, the pit is bedded in clean gravel, and the slab is patched flush. Plumbing the pump, check valve, and PVC discharge takes a few more hours. For long exterior runs we trench with our Yanmar SV40 mini excavator. North York Toronto Hydro rules require the pump to be on its own dedicated circuit — we’ll coordinate with an electrician if your panel doesn’t have a free breaker.

Timeline and Cost

Pump replacement in an existing North York pit: 1 day, $2,200-$3,200. New pit cut into existing slab with primary + battery backup: 1-2 days, $3,500-$4,500. Combined with weeping tile or French drain trenching: 2-4 days, $4,500-$5,500. Written fixed price before we cut anything.

Related Services in North York

The pump alone won’t fix a foundation that’s letting water in. Pair the sump system with foundation waterproofing in North York and a French drain or exterior weeping tile. For basement window leaks, see window well installation. Need the same work nearby? Check our Toronto sump pump page or browse all OCM service areas in the GTA.

Frequently Asked Questions

Does North York fall under Toronto’s drainage rules?

Yes. North York is part of the City of Toronto, which means Toronto’s Foundation Drainage Disconnect Program and discharge rules apply. Sump discharge cannot connect to the sanitary sewer — it has to go to surface drainage or, where permitted, the storm sewer.

Why does my North York pump run constantly?

Heavy clay soil holds groundwater long after the rain stops. North York basements see the pump fire every few minutes for hours after a storm — that’s normal here. Constant continuous running with no pause is a different problem: usually a stuck float, undersized pump, or restricted discharge line.

Is battery backup mandatory?

Not by code, but essentially mandatory in practice. North York power outages happen during the same storms that overload the pump. Without battery backup, a 30-minute outage during a peak rain event puts a foot of water in your basement.

Do I need a permit in North York?

Replacing a pump in an existing pit generally does not need a permit. Cutting a new pit into your basement slab or running a new discharge line tied to municipal infrastructure may need one. We check with Toronto Building before starting work in North York.

Get a Quote

Call OCM Excavation at 416-317-3090 or fill out our North York quote form. Free assessment, fixed written price, work guaranteed.

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