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Construction Lien on Your Home in Ontario: Deadlines and Removal

Learn how Ontario construction liens work for homeowners: the 10% holdback, the 60 and 90 day deadlines, and how a registered lien can be vacated.

Real Estate4 min readTSLBy the Treadstone Law Team · OntarioUpdated November 13, 2026
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Key takeaways
  • Every payer under a contract or subcontract on which a lien may arise must keep a 10 per cent holdback.
  • A contractor's lien generally expires unless it is preserved within 60 days and then perfected within 90 days.
  • Anyone can ask for an order vacating a registered lien by paying money into court or posting security.

Finding a construction lien registered against your home is stressful, and so is hearing a contractor threaten to register one. A lien is a claim on the property for unpaid work or materials, and it can get in the way of selling or refinancing.

The Construction Act sets deadlines and a way to clear a lien from title. This article explains the main rules in plain language. It is general information, so check the deadlines against the current statute and talk to a lawyer about your own situation.

The 10 per cent holdback

Under the Construction Act, every payer under a contract or subcontract on which a lien may arise must keep a holdback of 10 per cent.

The holdback exists to create a pool of money that can answer lien claims. How it must be handled in detail depends on the facts of your contract, so confirm the specifics with a lawyer.

The 60-day and 90-day deadlines

A contractor's construction lien generally expires unless it is preserved within 60 days. That period runs from the earliest of the events listed in s. 31(2), such as the contract being completed, abandoned or terminated.

Preserving the lien is only the first step. A preserved lien also expires unless it is perfected within 90 days.

StepDeadline
Preserve the lienWithin 60 days, counted from the earliest s. 31(2) event
Perfect the lienWithin 90 days

Which event started the clock, and when, can be disputed. Because the deadlines are strict, check them against the current statute and get advice early.

Removing a registered lien from title

Anyone can get an order vacating a registered lien, without notice, by paying money into court or posting security. That means you do not have to wait for the lien claim to be decided before clearing your title.

The amount is the full amount claimed plus the lesser of $250,000 or 25 per cent of that amount as security for costs. Under s. 44(2), the court may instead accept an amount it considers reasonable.

Buying a new home: the home buyer exception

If you are buying a new home from a builder, you may not be treated as an owner for lien purposes. Under the Construction Act, a home buyer is not an owner.

A home buyer is someone who buys an owner's interest in a home where no more than 30% of the price is paid before conveyance and the home is not conveyed until it is ready for occupancy. Whether you fit the definition depends on your purchase terms, so have a lawyer review them.

What to do next

Frequently asked questions

Do I have to keep a holdback as a homeowner?

The Construction Act requires every payer under a contract or subcontract on which a lien may arise to keep a 10 per cent holdback. How this applies to your project depends on your contract, so confirm it with a lawyer.

What happens if the contractor misses the lien deadlines?

A lien generally expires unless it is preserved within 60 days, and a preserved lien expires unless it is perfected within 90 days. Whether a deadline was actually missed depends on the facts, so get advice before relying on this.

Can I clear a lien without waiting for a court decision on the claim?

Anyone can get an order vacating a registered lien, without notice, by paying into court or posting security. The amount is the full claim plus an amount for costs, though the court may accept a different amount it considers reasonable.

Am I an owner if I am buying a new home?

Not necessarily. A home buyer is not an owner under the Construction Act. That applies where no more than 30% of the price is paid before conveyance and the home is not conveyed until ready for occupancy.

Sources

Links go to official government, court and regulator pages. The law changes — confirm you are reading the current version.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. Ontario laws, tax rates, and government programs change, and how the law applies depends on your specific facts. For advice about your situation, speak with a licensed Ontario lawyer. Treadstone Law is licensed by the Law Society of Ontario — reach us at 1-844-900-1070 or start a file online.

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