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.

  • Built for London homeowners
  • Based on public City rules and by-laws
  • Online-first, no phone call required
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: City flooding information By-law A.-7562-160 Drainage By-law WM-4 Sewers and wastewater

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

Recent London Grant Scenarios We Track

These anonymized planning examples show how the City caps can affect real homeowner budgets. Final eligibility, approval, and payment are always determined by the City of London under Basement Flooding Grant Program By-law A.-7562-160.

1950s home in Old South/Wortley

Quoted $2,400 for a backwater valve retrofit.

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

1990s home in Byron

Quoted $1,800 for sump pump and discharge work.

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

North London finished basement

Quoted $1,550 for a new pump with battery backup.

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.

You need to act fast, but starting work before City approval instantly voids your grant. Let's get your paperwork sorted safely.

I need emergency guidance → 🛡️

I want to prevent a future flood.

Smart move. If your home was built before 1985, you are likely in the "sweet spot" for up to $4,000+ in municipal coverage.

I want to protect my home → 📄

I want to know what I qualify for.

The by-laws are confusing. Let's figure out if you need a backwater valve, a sump pump, or both to satisfy the City.

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.

To successfully receive funding, you must follow a specific sequence of estimates, approvals, and inspections. Breaking ground before you have written City approval will instantly void your eligibility. 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

Find out what the program covers and what mistakes instantly void an application.

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. Last reviewed May 24, 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 exactly what qualifies.
  • ✓ Avoid common traps that instantly void applications.
  • ✓ 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? *
Older homes often qualify for higher grant amounts.
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? ▼
While the grant covers 90% of eligible construction costs, there are strict "caps" on how much you can receive for each item. For example, the maximum for a backwater valve is $1,800, and a sump pit and pump is capped at $4,000. You are responsible for any costs exceeding these limits, though the City offers a 10-year loan for the remaining balance if your property taxes are up to date.
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