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  • 14 Years Toronto Plumbing
  • CSA B64.10 Certified
  • WSIB & $2M CGL
  • Licensed - Permitted - Rebate-Filed

Sump Pump Replacement in Toronto, ON | Swap Failed Pump in Existing Pit

Sump Pump Installation Toronto replaces failed or aging pumps in your existing pit: 10+ year pumps, burned motors, seized impellers, stuck floats or cracked basins. Before the swap we inspect the basin wall, clear the discharge line and confirm the electrical circuit, then install an upgraded cast iron pump with a new float and check valve and finish with a flow test. Same-day replacement is available when a closing or a storm can't wait.

Plumber lifting an old rusted sump pump out of an existing pit next to a new cast iron replacement
Published price $1,500 - $2,800

1,850+

Installs in GTA

14 Yrs

Since 2011

24/7

Live Dispatch

2-Yr

Workmanship Warranty

What Is Included in a Sump Pump Replacement?

Have you ever noticed your pump running non-stop during a heavy spring storm? We completely understand how stressful that constant humming can be. A sump pump replacement simply means putting a new unit into the pit you already have.

This differs from a new interior sump pump installation, because there is no concrete slab to cut. Our sump pump installation team in Toronto usually finishes this straightforward job in just a few hours. The lower price tag directly reflects this simpler process.

We always look beyond the broken unit because a failed machine is often just a symptom of a larger issue.

Basin silt accumulation frequently clogs the intake screen. Our preparation includes inspecting the basin wall and clearing the discharge line before anything else. A worn check valve lets water fall back down and causes the motor to short cycle.

Our standard replacement process includes these critical steps:

  • Confirming the dedicated electrical circuit.
  • Installing an upgraded cast iron unit.
  • Adding a brand new vertical float switch.
  • Fitting a secure union check valve.

Washing out the basin and running a drawdown test finishes the job perfectly. We leave your basement clean and fully protected from the next heavy rainfall.

Signs Your Sump Pump Has Failed

Catching a problem early saves you from a massive cleanup headache. We see countless plastic models fail after just one or two years of use. Upgrading to a solid cast iron model typically extends that lifespan to five or ten years.

Our technicians often find that a cheap broken check valve is the real culprit behind a burnt-out motor. Replacing a faulty fifty-dollar part on time prevents the need for a completely new system.

SignWhat it usually means
Short cycling, on and off every few secondsFloat fatigue, bad check valve or oversized pump
Motor too hot to touchOverworked pump, thermal overload tripping
Grinding, rattling or check valve slamDamaged impeller or worn check valve
Rust on the housing or dischargeAge, often a pump past its service life
Pit drains slowlyPartial clog, worn impeller, discharge restriction
Motor hums, no water movesImpeller seizure or air-lock

New cast iron pump with vertical float and union check valve connected to the existing discharge

Why Sump Pumps Burn Out

Most failures pulled out of Toronto basements are cheap plastic models that ran too long and too hot. We know that intense storms put immense pressure on your home drainage. A pump might cycle every minute during a major 24 to 48 hour weather event. Our experience shows that a plastic housing simply cannot shed that heat well enough.

Several distinct factors cause these systems to overheat and fail:

  • Poor Heat Dissipation: Plastic casings trap heat, causing stator windings to burn out quickly.
  • Hydrostatic Pressure: The heavy clay soil in the Greater Toronto Area holds water against your foundation, forcing the motor to work harder.
  • Extreme Weather Events: The September 2026 storm dropped 110 millimetres of rain on the city, overwhelming standard setups.
  • Thermal Overload: Frequent tripping eventually stops the motor entirely when you need it most.

Water damage now accounts for roughly 48 percent of all home insurance claims in Ontario. We wrote about why this specific problem keeps growing in our recent news piece, Toronto Basement Flooding in 2026: Why Sump Pumps Burn Out Faster Now. Upgrading your equipment protects your basement from these unpredictable climate shifts.

Types of Replacement Pumps

Choosing the correct unit dictates how dry your basement stays during the spring thaw. We rely on solid cast iron submersible units as our default recommendation. Models like the Zoeller M53 or M63 and the Liberty 257 or LE51 are perfectly sized to your pit.

Our testing shows these units run quieter, stay cooler, and last significantly longer. The Zoeller M53 moves a reliable 2,580 gallons per hour. We also highly rate the Liberty 257 because it moves 2,640 gallons per hour and features a highly accurate vertical magnetic float. See our submersible sump pump page for the full comparison of these top-tier options.

High-Flow and Pedestal Options

High-flow 1/2 HP units are essential for pits that fill rapidly near the lake, ravines, or in heavy thaws. We install these stronger motors where the discharge line lifts water more than 10 feet vertically. Pedestal models are still available if you strictly prefer that older style.

Our clients almost always upgrade to a submersible unit when their old pedestal dies. Pedestal engines retain more heat because they cannot be immersed in cooling water. We want your new system to handle the worst weather without breaking a sweat.

What Drives Replacement Cost?

Many property owners wonder exactly what goes into the final bill for a new installation. We keep our pricing transparent because a quality pump is the cheapest flood insurance you can buy. The average professional cleanup for a flooded Toronto basement in 2026 easily ranges from $2,500 to $10,000. Our upfront costs depend heavily on the specific condition of your existing pit and discharge line.

Cost factorLower endHigher end
Pump1/3 HP cast iron1/2 HP high flow
Check valve and dischargeSimple swapRetrofitted discharge coupling, reroute
BasinSound, needs a washSilted, needs repairs or a sealed lid
TimingBooked visitSame-day storm or pre-sale call

Upgrading to a 1/2 HP high-flow motor naturally costs more than a standard 1/3 HP model. We also factor in any required retrofits, like fixing a silted basin or installing a sealed lid. Emergency same-day calls during a storm carry a premium compared to a standard booked visit.

Selling Your Home Soon?

A failed unit is one of the most common things a home inspector flags in a Toronto basement. We frequently get emergency calls from sellers who just failed an inspection due to a stuck float switch. The Canadian Association of Home and Property Inspectors warns that even a few inches of standing water indicates serious risk.

Inspectors specifically look for these common red flags during a walkthrough:

  • Stuck Float Switches: A switch that will not trigger means the system is useless.
  • Broken Check Valves: Water falling back into the pit causes constant short cycling.
  • Outdated Plastic Units: Older plastic models lack the reliability of modern cast iron systems.
  • Unsealed Lids: Open basins allow hazardous radon gas and excess moisture into the basement.

Our thorough inspection, flow test, and written report answer the buyer’s questions before they even ask. A quick fix saves you from stressful price negotiations at the closing table. We provide a same-day replacement in your existing pit to keep your closing date completely on track. Call us today to schedule a reliable sump pump replacement so the new owners can start their journey with total peace of mind.

How Much Does Sump Pump Replacement Cost in Toronto?

Our published range is $1,500 - $2,800 per replacement. Replacement in your existing pit. Cracked basins or a new circuit are quoted separately at the assessment. The written quote after your free assessment is the price you pay. No surprise line items.

Straight Swap

$1,500 - $1,900

  • 1/3 HP cast iron pump
  • New float + check valve
  • Basin wash
  • Flow test
Get a written quote

Replacement Plus Repairs

$2,400 - $2,800

  • 1/2 HP high-flow pump
  • Retrofitted discharge coupling
  • Sealed lid upgrade
  • Minor basin repairs
Get a written quote

Same-Day Dispatch Available City of Toronto subsidy covers Toronto addresses only. Other GTA municipalities run their own programs.

Every install includes a written 2-year workmanship warranty. Pump manufacturer warranties apply on top and vary by model.

Try the Sump Pump Sizing Calculator

Use a simple bucket-style pit test to estimate inflow and the pump capacity your basement needs.

Use the Calculator

What Sets Our Replacement Work Apart in Toronto?

14 years in Toronto basements, 1,850+ sump installs and a licensed Master Plumber on every permit. Here is what that means on your job.

Cast iron upgrade

Replacing a plastic pump with cast iron usually buys you 15-20 years instead of 5-7.

We fix the cause, not just the pump

Silted basins, frozen discharge lines and tired check valves kill pumps. We check all of them.

Same-day when it matters

Storm failures and pre-sale deadlines get same-day dispatch where we can.

Right-sized, not oversized

A bigger pump is not always better. Oversized pumps short cycle and wear out early.

Clean, quick work

Most replacements are done in a few hours, with the room left as we found it.

2-year workmanship warranty

On top of the pump maker's warranty.

How Does Our Replacement Process Work?

No guesswork about what happens on install day. Most Toronto jobs follow these steps, and we tell you up front if yours will differ.

The honest timeline

Install work is usually 1-2 days on site. Where a Toronto Building drain permit is needed, filing takes about 5 business days, the inspector attends the same week as completion, and a City subsidy cheque arrives 6-8 weeks after the packet goes in.

  1. 1. Call or book

    Live answer 24/7. Tell us what the pump is doing, or not doing, and we schedule a visit, same day if it can't wait.

  2. 2. Pre-flight checks

    We inspect the basin wall, clear and check the discharge line and confirm the electrical circuit before touching the pump.

  3. 3. Written price on the spot

    Pump choice and price in writing. If the basin is cracked or the circuit is unsafe, you hear it now, not after.

  4. 4. Swap and upgrade

    Old pump out, silt cleared, new cast iron pump, new float and new union check valve in.

  5. 5. Drawdown and flow test

    We fill the pit and watch the pump cycle, measuring how fast it draws the water down.

  6. 6. Written report

    Useful for home inspectors and insurers, especially if you are selling.

Our Replacement Work Around Toronto

Real jobs, real basements. Tap any photo to enlarge it.

What Customers Say About Our Replacement

"July 16 rainstorm overwhelmed our old plastic pump. They came same day, swapped in a Liberty 257 in a sealed basin with zero dust in our finished basement."
Marcus T. · Little Italy Replacement $1,650 CAD
"Our 12-year-old pump was short cycling. New cast iron Zoeller, new float, new check valve and a flow test in the existing pit. Done before lunch."
Helen W. · Kensington Replacement $2,100 CAD
"Alarm went off at 2 a.m. in our condo townhouse. Live person answered, tech arrived that morning, cleaned a stuck float and left a photo report for the board and insurer."
Jason L. · Harbourfront Emergency $380 CAD

Get a Written Replacement Quote

The one-hour visit covers a camera scope, a flow test, a City subsidy eligibility check and a written CAD quote with pump brand, basin type and discharge spec.

  • Written price before any work starts
  • Permit and inspection booked for you where required
  • Subsidy packet filed at $0 on eligible Toronto installs
  • 2-year written workmanship warranty

Book Your Replacement Assessment

Camera scope + pit inspection + written quote + City subsidy eligibility check. No obligation.

WSIB covered · Master Plumber (ON) · No pushy sales

Sump Pump Replacement: Frequently Asked Questions

How much does sump pump replacement cost in Toronto?

Sump pump replacement costs $1,500 to $2,800 CAD in Toronto when the new pump goes into your existing pit. That price includes the pre-flight checks (basin wall, discharge line and circuit), an upgraded cast iron pump, a new float switch, a new check valve, a basin wash and a flow test.

The low end covers a straight swap with a 1/3 HP cast iron pump. Most jobs land in the middle with a Zoeller M53 or M63 or a Liberty 257 and a union check valve. The higher end covers 1/2 HP high-flow pumps, a retrofitted discharge coupling, a sealed lid upgrade or small basin repairs. A cracked basin that needs replacing, or a new dedicated circuit, is quoted separately so you can see the cost.

What are the signs my sump pump has failed or is about to?

Watch for six warning signs. Short cycling, where the pump turns on and off every few seconds, often means a bad float or a check valve that lets water fall back. Overheating, where the motor housing is too hot to touch, points to a pump that is working too hard or about to burn out. New noise, like grinding or rattling, often means a damaged impeller. Rust or corrosion on the housing or discharge is a sign of age. Slow flow, where the pit drains more slowly than it used to, can mean a clog or a worn pump. No flow at all, with the motor humming, usually means a seized impeller.

If you see any of these before spring thaw, book a check. A swap in March is much easier than one at 2 a.m. in a storm.

How long does a sump pump last?

Cast iron sump pumps typically last 15 to 20 years in a Toronto basement. Plastic, or thermoplastic, pumps usually last 5 to 7. The difference is heat: a cast iron housing pulls heat away from the motor during long storm cycles, while plastic traps it, which cooks the stator windings over time.

Run time matters too. A pump in a high water table near the lake or a ravine may cycle hundreds of times a day in spring. If your pump is over 10 years old, we usually recommend replacing it before it fails rather than waiting for the night it does.

Should I repair or replace my sump pump?

Replace pumps over 10 years old, or with burned motors, seized impellers or cracked basins ($1,500 to $2,800). A stuck float or a single failed part on a younger pump is usually a $200 to $500 repair.

We give you both options when both make sense. Our emergency repair team carries common parts and can often fix a stuck float or a failed check valve on the first visit. If the motor has thermal overload damage or the impeller is seized, a replacement is the better spend.

Can you replace my sump pump the same day?

Often, yes. Same-day replacement is available for storm failures and for sellers with a closing date coming up. Call the 24/7 line, and if the water is rising we can pump out the pit while we swap the pump. We carry the most common cast iron models on the truck.

Do you reuse my existing basin?

Yes, if the basin wall is sound. We inspect it before the swap. If it's cracked, we tell you and quote a replacement before any work starts.

Why replace the check valve too?

Old check valves wear out, leak back or slam shut loudly. A new union check valve makes future service easier and protects the new pump from short cycling.

What is a drawdown test?

We fill the pit and time how fast the new pump lowers the water. It confirms the pump, float and discharge are working together properly.

Is a sump pump replacement covered by the City subsidy?

Usually not. The subsidy targets new installs. We check eligibility at the assessment anyway.

My pump runs but the pit doesn't drain. What's wrong?

Often a seized or clogged impeller, an air-lock, a stuck check valve or a frozen discharge line. Call us; it may be a quick fix.

Can you replace a pedestal pump with a submersible?

Yes. Pedestal-to-submersible upgrades are common, and we can add a sealed lid at the same time.

Will a new pump fix my short cycling?

Only if the pump or float was the cause. Short cycling can also come from a bad check valve or a pump too big for the pit, so we check those too.

Up to $500 City Rebate When Installed as a New Sump System

Quieter, higher-flow cast iron submersible pumps in a sealed pit, including pedestal-to-submersible upgrades.

  • Zoeller M63
  • Liberty LE51
  • Hydromatic SW33
  • Sealed Lid
Submersible details

Subsidy eligibility confirmed at assessment when part of a new sump install

Secondary 12V pump on a deep-cycle battery with its own float and WiFi alarm, so the pit keeps draining when the power goes out.

  • Aquanot 508 ProPak
  • Liberty SJ10
  • Smart Switchover
  • 8-24 h Runtime
Battery Backup details

Ready to Book Replacement in Toronto?

Honestly, that is the whole pitch. We would rather spend an hour at your house now than pump out a finished basement later.

  • Published CAD pricing
  • 2-year workmanship warranty
  • Licensed Master Plumber (ON)
  • City subsidy filed at $0
Call 24/7 Get $1,750 Rebate