Check My Grant Eligibility
Independent local guide for London homeowners

Check Your London Basement Flooding Grant Eligibility Before You Start Work

Whether you're in a historic home in Woodfield or a newer build in Hyde Park, get a plain-English breakdown of what may be covered, what usually is not, and what to do before requesting quotes for basement flood-prevention work in London.

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Check My Grant Eligibility
Independent page. Not affiliated with the City of London. Approval, eligibility, and funding are determined by the City.

Primary public sources: Official grant program City flooding information By-law A.-7562-160 Drainage By-law WM-4

Current program snapshot

The grant is 90% of eligible cost, up to a separate cap for each approved item

There is no single maximum that fits every project. Your possible reimbursement depends on the approved work in your application and the cap for each line item.

Eligible work typeCurrent maximum
Backwater valve$1,800
Sewage ejector and holding tank$6,000
Sump pit and pump with existing weeping tile disconnection$4,000
Additional weeping tile disconnection$2,400
Storm private drain connection$7,000
Storm building sewer$3,000
Battery backup installed with a new sump pump$1,400
Reverse-grade driveway sump pit and pump$4,000

Source checked July 22, 2026: City of London Basement Flooding Grant Program. Battery backup funding applies when installed with a new sump pump; adding one to an existing sump is not eligible under the current program page.

Estimate each project item

📍 London Homeowners
💰 Up to 90% Covered
📜 By-Law Compliant
🤝 Licensed Plumbers
Local grant math examples

Illustrative London Grant Math

These planning examples show how the City caps can affect a homeowner budget. They are calculations, not actual approvals or price promises. Final eligible cost, approval, and payment are determined by the City of London.

1950s home in Old South/Wortley

Illustrative $2,400 tax-inclusive eligible backwater-valve amount.

City cap: $1,800. Homeowner estimate: $600.

1990s home in Byron

Illustrative $1,800 tax-inclusive eligible sump-category amount.

90% estimate: $1,620. Homeowner estimate: $180.

Battery line with a new sump project

Illustrative $1,550 tax-inclusive eligible battery-backup line.

Battery backup cap: $1,400. Homeowner estimate: $150.

Planning examples only. Quotes must be itemized by labour and materials, permits must pass inspection, and work cannot start before written City approval.

In a rush? Watch the 90-second breakdown

Start with the eligibility check above, then use this quick overview to understand the grant sequence.

London neighborhood risk hub

Basement Flood Risk Changes by Neighborhood

Historic clay-era homes, hilly west-end lots, and newer sump-dependent subdivisions each need a different grant strategy.

Old South & Wortley Village

Historic homes, clay pipes, weeping tile disconnects, and backwater valve planning.

Byron & Oakridge

Hilly lots, reverse-grade driveways, sump discharge, and Drainage By-law WM-4 compliance.

Masonville & Sunningdale

Newer homes, finished basements, battery backups, and sump pump failure planning.

View the full London Neighborhood Risk Hub

What brings you here today?

Select your situation below to start with the most useful page, then come back to the form when you are ready.

🌊

My basement already flooded.

Address safety and cleanup first. Starting grant-related prevention work before written approval can make that work ineligible.

I need emergency guidance → 🛡️

I want to prevent a future flood.

Start with the symptoms and existing drainage setup. Home age can guide the questions to ask, but it does not determine eligibility by itself.

I want to protect my home → 📄

I want to know what I qualify for.

Use the planning checker to choose the right next guide. Only the City can confirm eligibility or require a particular project scope.

Check my eligibility →

How the Grant Process Actually Works

The City of London covers up to 90% of eligible costs to protect your home, but the approval process is strict. You cannot simply hire a contractor and send the City the bill.

Funding depends on a specific sequence of estimates, written approval, approved work, permits, inspections, and reimbursement documents. Grant-related construction started before written approval is not eligible. Here is a high-level snapshot of the official path:

City of London Basement Flooding Grant Infographic
🔍 Tap to Enlarge

Not ready for quotes? Grab the free guide.

If you are just starting your research, download our plain-English guide. Learn what to prepare before an inspector arrives and the questions you MUST ask before hiring a plumber.

Check My Grant Eligibility

How our free triage tool works:

1

Take the Quiz

Answer a few quick questions below about your home's age and flooding situation.

2

Get Your Guide

Review current work categories, caps, and the application-first sequence.

3

Get Matched (Optional)

If you want, request a grant-ready, correctly formatted quote from a local licensed contractor.

Independent Advice.
Grant-Ready Matches.

We are an independent London advisory service. We help homeowners understand By-law A.-7562-160, Drainage By-law WM-4, mandatory itemized quotes, and the permit sequence before any work starts.

London-based homeowner grant guidance reviewer

Locally reviewed guidance

Reviewed by a London-based third-party homeowner advisor. Sources checked July 22, 2026.

Vetted contractor network

Optional matches go to licensed plumbing/drainage contractors serving London and Middlesex County who understand grant-ready quote formatting.

How this service works: This is a third-party guide, not a City service. We use public City rules to help you prepare questions and may offer optional contractor matching if you request it. Read the disclosure.

  • ✓ Get the free guide to understand what may qualify and what the City must confirm.
  • ✓ Avoid common traps that can make proposed work ineligible.
  • ✓ Optional: Get matched with a grant-ready licensed contractor.

Get the free guide

Answer a few quick questions to download.

Step 1 of 3: Contact Info

Step 1 of 3: Contact Info

Step 2 of 3: Property Details

Do you own this home? *
Is the property in London, Ontario? *
Was your home built before 1985? *
Home age helps frame drainage questions, but does not determine eligibility by itself.
Has any related work already started? *

Step 3 of 3: Final Details

What do you want next? *

Frequently Asked Questions

Can I start the work now and get reimbursed later? ▼
No. Under the City of London Basement Flooding Grant Program By-law A.-7562-160, the program is not retroactive. Any work started before written City approval is ineligible for funding. You must wait for the City to review your quotes and send an official approval letter before your contractor begins any construction.
Does the grant cover 90% of my entire contractor's bill? ▼
The grant is 90% of eligible construction cost up to a separate cap for each approved work type. For example, the current maximum for a backwater valve is $1,800 and the current sump pit/pump category with existing weeping tile disconnection is capped at $4,000. You are responsible for amounts above the applicable caps and for ineligible work.
Will this grant pay to fix my finished basement or foundation cracks? ▼
No, the funding is strictly for mechanical flood prevention devices like pumps and valves. It specifically excludes any cosmetic restoration, such as replacing drywall and flooring, and does not cover foundation wall or floor crack repairs. Download our free guide to make sure your contractor’s quote is formatted to focus only on eligible work.
Do I need a permit and an inspection to get paid? ▼
Yes. By-law A.-7562-160 requires the necessary plumbing or building permits before approved work begins, and permits must pass inspection before grant funding is issued. Sump pump discharge work also needs to comply with City Drainage By-law WM-4.
My current sump pump is old—can I use the grant to replace it? ▼
No. The grant program does not cover the maintenance, repair, or replacement of existing sump pumps or pits. Funding is only available for brand-new installations designed to disconnect your foundation drains from the City sewer system.
Check My Grant Eligibility