Unique Lien and Contract Risks That Cause Construction Disputes in Muskoka
Construction disputes can involve unpaid invoices, construction liens, unexpected site conditions, change orders, delays, defective work and disagreements over who is responsible for additional costs. Muskoka projects in particular can also present additional risks because of remote access, waterfront regulations, difficult terrain and seasonal construction schedules.
When those problems lead to disagreements, a construction lien can become part of the problem. For property owners, contractors and subcontractors, understanding construction liens means knowing how a construction problem can turn into a claim against the property.
Ontario's Construction Act creates specific rights and obligations surrounding construction liens, holdbacks, payment disputes and adjudication, which is why working with a lawyer who is experienced in construction law is vital.
Why Muskoka Projects Present Unique Risks
A waterfront property may be accessible only by boat during the warmer months, while materials and equipment may need to be transported by barge. Winter construction can depend on ice roads or trails, while spring thaw can make access difficult or impossible. Weather-related delays can affect not only the construction schedule but also the cost of staging and transporting materials.
The underlying site can create another layer of uncertainty. Muskoka's Canadian Shield terrain can include substantial areas of exposed or near-surface bedrock. Excavation that appeared straightforward during the estimating stage can become a much more expensive undertaking when drilling, rock breaking or blasting is required.
If the contractor claims that unexpected site conditions justify additional payment and the owner disputes the change order, the disagreement may quickly become a larger payment dispute. The contractor may stop work. The owner may hire another contractor. Subcontractors may remain unpaid. Eventually, one or more parties may register a construction lien.
At that point, the dispute is no longer simply about how much the work should cost. It can affect the title to the property itself.
A Construction Lien Can Come From Someone the Owner Never Hired
One of the most important issues for Muskoka property owners is that a lien does not necessarily come from the contractor with whom the owner signed the construction agreement.
Under the Construction Act, a person who supplies services or materials to an improvement for an owner, contractor or subcontractor can have lien rights for the price of those services or materials.
This means that a subcontractor or material supplier working several steps down the contractual chain may have rights against the property.
Consider a Muskoka cottage where the owner hires a general contractor. The general contractor brings in a specialty marine contractor to build a dock. If the general contractor fails to pay that contractor, the owner may find a lien registered against the cottage even though the owner has already paid the general contractor.
The parties may then have to determine what work was performed, what remains unpaid, whether the amount claimed is accurate, whether the claimant has lien rights and whether the statutory requirements for preserving the lien have been met.
Can a Construction Contract Cause a Dispute?
A lien is often a symptom of a larger contractual problem. For example, a contractor may claim additional compensation because of unexpected bedrock, while the owner argues that the contractor accepted the site conditions and agreed to complete the work for a fixed price.
A contractor may claim that an owner caused delays by changing the design, while the owner says the contractor failed to meet the original schedule. A subcontractor may claim unpaid invoices while the contractor alleges deficiencies or defective work.
On a remote property, establishing what happened may require reviewing delivery records, invoices, photographs, schedules, change orders and communications between several parties. A registered lien does not automatically mean that the amount claimed is correct, just as an owner's disagreement with an invoice does not eliminate a valid lien.
Who Pays for Unexpected Site Conditions and Change Orders?
Suppose excavation begins and the contractor encounters extensive granite bedrock. The contractor says that additional drilling and blasting are required and submits a substantial change order. The owner argues that the contractor should have anticipated the conditions when pricing the project.
The answer will depend heavily on the contract.
The parties may need to examine provisions dealing with concealed or unknown conditions, allowances, exclusions, site investigations, change orders, notice requirements and responsibility for additional costs.
The issue can become more serious when a contractor treats the owner's refusal to approve additional costs as non-payment and a subcontractor subsequently registers a lien.
Waterfront Regulations Can Create Another Layer of Risk
Waterfront construction in Muskoka can involve planning, zoning, environmental, septic and shoreline requirements that affect where and how work can be carried out. These requirements can become a source of dispute when a project needs to be redesigned, delayed or expanded because the approvals or site conditions are different from what the parties expected.
The rules also vary between municipalities. For example, the Town of Huntsville requires specific waterfront site plans and shoreline buffers, including a natural shoreline buffer across at least 75% of the lot frontage and generally extending 15 metres from the shoreline.
The Township of Muskoka Lakes has its own zoning, site plan, tree conservation and site alteration requirements for waterfront properties. The Township recently clarified that an Original Shore Road Allowance may need to be owned before a building permit can be issued for a boathouse or other shoreline structure.
In Bracebridge, zoning and site plan requirements can regulate building locations, setbacks, grading, stormwater management and other aspects of development. Waterfront properties may also be subject to septic and tree-preservation requirements.
The Township of Lake of Bays also has specific waterfront planning requirements under its Community Planning Permit system, including controls on shoreline development and natural vegetation.
These requirements matter in a construction dispute because the key question may not simply be whether additional work was necessary. The parties may need to determine who was responsible for obtaining approvals, whether the original design complied with applicable requirements, who bears the cost of redesign or delay, and whether the contract allocated those risks to the owner or contractor.
What Are the Holdback Rules for Construction Projects in Ontario?
Ontario's Construction Act requires a basic holdback equal to 10 per cent of the price of services or materials supplied under a contract or subcontract where a lien may arise.
The 2026 amendments also changed how basic holdbacks are released on longer projects. Following each anniversary of a contract, the owner must publish a notice of annual release of holdback within 14 days of the anniversary. The accrued holdback is generally payable between 60 and 74 days after that notice, subject to the statutory rules concerning preserved and perfected liens. The previous annual and phased holdback provisions were repealed and replaced by the new annual release regime.
On lengthy Muskoka projects, the parties may also disagree about which work is included in a particular holdback period or whether a lien has been preserved or perfected. Understanding the 2026 rules, or hiring a lawyer who does, is important when a project extends over multiple construction seasons.
How Long Do You Have to Register a Construction Lien in Ontario?
In most cases, a construction lien must be preserved within 60 days of the event that starts the applicable deadline. If the lien is preserved, the claimant generally has a further 90-day period to perfect it.
For most lien claimants, a lien expires at the conclusion of the 60-day period following the event that starts the deadline under the Construction Act. Depending on the circumstances, that event can include the claimant's last supply of services or materials, completion, abandonment or termination of the contract, or completion of a subcontract.
On a Muskoka project, determining the relevant date may not always be straightforward.
Was the contractor finished, or did they return later to complete additional work? Was a final delivery made by a supplier? Was a deficiency corrected? Did the subcontract end when the contractor says it did?
The 2026 amendments also changed the requirements following termination. Where a contract is terminated, the required notice of termination must generally be published within seven days.
That makes proper documentation of termination and last supply dates particularly significant when a construction relationship breaks down.
What Happens After a Construction Lien Is Registered?
A lien generally has to be registered before the applicable deadline. If it is preserved, the claimant then has another deadline to start a court action and take the steps required to keep the lien alive. Under the current Construction Act, a preserved lien generally expires unless it is perfected before the end of the 90-day period following the last day on which it could have been preserved.
A claimant that misses either deadline can lose the lien. For a property owner, these deadlines can provide an important basis for challenging a lien that has been registered against the property.
When Should an Owner Challenge a Construction Lien in Muskoka?
There may be grounds to challenge a lien where the amount claimed is exaggerated, the claimant did not provide work or materials that qualify for lien protection, the deadline has expired, or the lien was not properly filed.
The court can order a lien to be removed from title in appropriate circumstances. For an owner, that can be important when a lien is preventing a sale, refinancing or other transaction involving the property.
It’s important to consult a construction lawyer to see if you may need a full determination of your contractual and payment rights.
Can Adjudication Resolve a Construction Payment Dispute?
The Construction Act provides for interim adjudication, which can offer a faster way to address certain payment and contractual issues while a project is still underway.
That can be important on a Muskoka project where a payment problem threatens to bring construction to a standstill. If a contractor claims that an owner owes substantial amounts for work, adjudication may provide a way to determine what amount is payable without waiting for a full lien action.
A lien and an adjudication can also intersect, depending on the circumstances. The appropriate approach depends on the contract, project stage and remedies each party needs.
What a Construction Lawyer Looks At
A construction lawyer will start by reviewing the contract, change orders, payment records, subcontract agreements, invoices, delivery records, photographs, project schedules, permits and communications between the parties.
The lawyer will also establish the key dates, including when the relevant work was supplied, when the contract was completed or terminated, whether the required notice was published, and when the lien was registered. The holdback also needs to be reviewed.
This can help determine whether the lien is valid, whether it can be removed from title and what options are available to resolve the underlying problem.
Get Legal Advice Before a Construction Disagreement Escalates
Construction disputes in Muskoka can involve significant sums of money and valuable waterfront properties. Whether you are a property owner dealing with a lien, a contractor trying to recover unpaid amounts, or a subcontractor concerned about protecting your rights, getting legal advice early can make a significant difference.
At Gionet Fairley Wood LLP, our construction lawyers understand that these matters often involve more than a single unpaid invoice or lien. Our construction litigation experience provides the background to address both the immediate lien issue and the larger contract or payment problem behind it.
We serve property owners, contractors and subcontractors throughout Barrie, Simcoe County, Muskoka, Grey Bruce County, and Ontario. Call us at 705-468-1088 or visit our website to speak with our construction law team.
The information provided in this blog is for general informational purposes only and should not be construed as legal advice. If you have legal questions, we strongly advise you to contact us.