Illegal Utility Connections - Markham Bylaw Guide

Utilities and Infrastructure Ontario 3 Minutes Read · published May 24, 2026 Flag of Ontario

In Markham, Ontario, illegal utility connections create public-health, infrastructure and environmental risks and are addressed through municipal bylaw enforcement in partnership with regional utilities. This guide explains how the city and related agencies identify, investigate and resolve unauthorized ties to water, sanitary or storm systems, and how residents can report suspected illegal connections, comply with orders, and pursue appeals. It is aimed at homeowners, property managers and contractors seeking clear steps to resolve issues and avoid enforcement action.

Overview

Unauthorized connections can include sump pumps or roof leaders tied into sanitary sewers, unapproved stormwater discharges, or other attachments that bypass approved treatment or inspection. Responsibility for investigation and corrective orders may involve City of Markham By-law Enforcement, Building Standards, and regional water authorities depending on the utility affected.

Report suspected illegal connections promptly to limit damage and liability.

Penalties & Enforcement

The City enforces compliance through orders, inspections and, where necessary, charges under municipal bylaws and related provincial authorities. Specific fine amounts or per-day penalties are not specified on the cited city page.[1] Escalation for repeat or continuing offences is handled through successive orders and possible court prosecution; ranges for first, repeat or continuing fines are not specified on the cited page. Non-monetary sanctions commonly include compliance orders, mandatory disconnection or remediation, seizure of illicit apparatus, and referral to the Provincial Offences Court.

  • Enforcer: City of Markham By-law Enforcement and Building Standards, with regional partners for water and wastewater.
  • Inspections conducted by municipal officers or authorized regional inspectors.
  • Appeals and court review generally proceed through the Provincial Offences Court or as specified on enforcement notices; time limits are not specified on the cited page.
  • Fees or cost recovery for remedial work can be imposed and may be registered on property tax rolls if unpaid.
If you receive an order, act quickly to document compliance steps and deadlines.

Applications & Forms

The City’s published bylaw pages do not list a specific single form for reporting illegal utility connections; reporting and requests for enforcement are handled via the By-law Enforcement complaint process and service request channels on the City website.[1]

Reporting, Investigation & Remediation

Residents should document suspected connections with photos, dates and locations, then file a complaint with City By-law Enforcement. The city will triage complaints, coordinate inspections, and issue orders or notices requiring corrective work. Where water or wastewater systems are involved, regional authorities may require certified contractors to complete disconnection or repair.

  • How to report: use the City of Markham service request/complaint route for bylaw issues.[1]
  • Remediation: licensed contractors may be required for plumbing or sewer disconnection.
  • Follow-up inspection: municipal or regional inspector will verify compliance and close the file.

How to Comply

Common compliance steps include engaging a licensed plumber, obtaining any required permits for permanent repairs, completing disconnection and restoration, and providing proof of remediation to the enforcing officer. Keep records of invoices, permits and inspection reports.

Keep a dated photo record and receipts to show you remedied the issue.

FAQ

Who enforces illegal utility connections in Markham?
Primary enforcement is by City of Markham By-law Enforcement and Building Standards; regional utilities handle water and wastewater connections.
What penalties can I face?
Penalties may include compliance orders, cost recovery, and prosecution in Provincial Offences Court; specific fine amounts are not specified on the cited city page.[1]
How do I report a suspected illegal connection?
Report via the City of Markham By-law Enforcement service request or complaint process; include photos and location details.[1]

How-To

  1. Document the issue: take dated photos and note address and visible connections.
  2. File a complaint with City of Markham By-law Enforcement through the online service request or phone line.[1]
  3. If ordered, hire a licensed contractor to disconnect or remediate and obtain required permits.
  4. Submit proof of remediation to the enforcing officer and arrange for re-inspection.
  5. If charged, follow notice instructions to pay or contest the matter in the Provincial Offences Court before the stated deadline.

Key Takeaways

  • Illegal connections risk fines, orders and remediation costs.
  • Report concerns promptly to City of Markham By-law Enforcement.

Help and Support / Resources

  1. [1] City of Markham - By-law Enforcement and complaint process

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