How to File a Contractor Deposit Claim in Ontario Without a Paralegal
If a contractor took your deposit and walked off the job — or did work so defective you had to pay someone else to fix it — you can recover the money through Ontario Small Claims Court without hiring a paralegal. The court handles claims up to $50,000 (Ontario Regulation 42/25, effective October 1, 2025) and was designed for self-represented litigants. The filing fee is $108 for an infrequent claimant; service and other expenses can add costs. A paralegal would charge $250 to $500 just to draft the claim form, or $1,000 to $3,500 for full representation. For a straightforward contractor deposit dispute where the facts are clear, those fees are avoidable.
The overall timetable depends on claim issuance and court scheduling. Here is the sequence.
The Seven Steps
1. Confirm You Are in the Right Court
Before you pay the filing fee, verify three things:
- The amount. Your total claimed loss, accounting for any value received and provable costs to complete or repair the work, is $50,000 or less, exclusive of interest and costs.
- The limitation period. Under the Limitations Act, 2002, the basic period is two years from discovery. The clock starts when you knew or ought reasonably to have known that a loss occurred, the contractor's act or omission caused it, and a court proceeding was an appropriate remedy. Do not assume that the deposit date or the last unanswered message alone sets the start date; get legal advice if it is unclear.
- The right forum. Under Rule 6.01, you may start the claim in the territorial division where the cause of action arose or where the defendant resides or carries on business, or at the court place of sitting nearest to where the defendant resides or carries on business. If the contractor worked under a trade name, the right party depends on whether it is a corporation, sole proprietor, or partnership (step 3).
2. Send a Demand Letter
Most Ontario Small Claims disputes never reach a hearing because the demand letter resolves them. The letter must include:
- The total amount you are claiming, calculated from the loss you can prove and accounting for any value received
- A clear payment deadline (typically 10 to 14 calendar days after delivery)
- A statement that you will file a Plaintiff's Claim in Small Claims Court if the deadline passes without payment
Send it by registered mail or Canada Post Xpresspost so you have a tracking receipt. If the contractor has an email address, send a copy there too. Keep the tracking confirmation and a copy of the letter — they become Exhibit 1 if you go to court.
3. Verify the Contractor's Legal Name
This step prevents the single most common mistake in contractor claims. If the contractor operates as "Mike's Quality Renos" but the incorporated entity is "1234567 Ontario Inc. o/a Mike's Quality Renos," suing only the trade name can make your judgment unenforceable.
For a corporation, run an Ontario Business Registry (OBR) profile report ($8 to $12 online) or search Corporations Canada to confirm its exact legal name and registered office address. Name the corporation by its exact legal name on Form 7A. A sole proprietorship is not a separate legal entity: name the individual owner personally, carrying on business as [trade name]. A partnership may be sued in its firm name; to make individual partners personally liable, serve a Notice to Alleged Partner (Form 5A).
4. Complete and File Form 7A
The Plaintiff's Claim (Form 7A) is the form that starts your court case. The key section is the facts — a chronological narrative of what happened:
- When you hired the contractor and what the contract required
- How much you paid as a deposit and when
- What the contractor did or failed to do
- When and how you asked for the money back
- The total amount you are claiming, including the pre-judgment interest calculation
File through Justice Services Online (the Small Claims Court Submissions Online portal) and pay the $108 filing fee by credit or debit card. Uploads must be clear, unencrypted, text-searchable PDFs and follow the portal's file-naming requirements. Unliquidated claims require clerk review, and submissions can be rejected for formatting defects.
The Making a Claim in Ontario Small Claims Court guide includes a Form 7A worked example specifically for a contractor deposit scenario — the facts section, the relief claimed, and the interest calculation — plus an Online Portal Upload Checklist with the exact formatting specifications.
5. Serve the Claim
After the clerk issues (stamps) your claim, you have six months to serve it on the contractor under Rule 8.01(2) of the Rules of the Small Claims Court. Serve the legal entity you named on Form 7A:
- Individual sole proprietor: Personal service — hand the claim to the person directly. The plaintiff, another adult, or a professional process server may carry out direct service.
- Corporation: Hand the claim to an officer, director, or person managing a place of business. An alternative is registered mail or courier to the registered office, or leaving it with the person managing that office. If the permitted methods cannot be completed after documented attempts, get a court order for substituted service before using another method such as email.
After service, the person who served the claim completes the Affidavit of Service (Form 8A) and swears it before a Commissioner of Oaths. File the sworn Form 8A with the court. This document proves the contractor received the claim — without it, you cannot get a default judgment.
6. Wait for the Defence — or Request Default Judgment
The contractor has 20 calendar days after service in Ontario to file a Defence (Form 9A). If they do not, file proof of service (Form 8A) and ask the clerk to note them in default using Form 9B. For any part of the claim that is a debt or other liquidated demand, request judgment using Form 11B ($94 for an infrequent claimant). If damages must be assessed, such as repair costs, request an assessment by written motion with a supporting affidavit (Form 15A) or ask the clerk to schedule an assessment hearing (Form 9B).
If the contractor files a Defence, the court schedules a mandatory settlement conference.
7. Attend the Settlement Conference and, If Needed, Trial
The settlement conference is an informal meeting with a deputy judge who reviews both sides' positions and tries to facilitate a settlement. Bring an indexed evidence binder with:
- The contract or written agreement (even a text message chain confirming the scope and price)
- Proof of payment (e-Transfer confirmations, bank statements, cancelled cheques)
- The demand letter and delivery tracking receipt
- Photos of incomplete or defective work, with dates
- Quotes from replacement contractors showing the cost to complete or repair the work
- A chronological timeline of events
If the settlement conference does not resolve the dispute, the court sets a trial date. At trial, you present your evidence, the contractor presents theirs, and the deputy judge decides. The court's process is designed for self-represented parties, but you still need to present your evidence and follow the court's procedural requirements.
The Evidence That Wins Contractor Deposit Cases
Contractor disputes in Small Claims Court turn on documentation, not legal arguments. The strongest cases have:
- A written agreement (any format: signed contract, email exchange, text messages confirming scope and price). An oral agreement is enforceable but harder to prove.
- Proof of payment. E-Transfer confirmations, bank statements, or cancelled cheques showing exactly how much you paid and when.
- Photos with dates. Before-and-after photos of incomplete or defective work. If your phone camera captures metadata, the date is embedded.
- Replacement contractor quotes. If you hired someone else to finish or fix the work, their invoice shows the cost of completing what the first contractor failed to do.
- Communication records. Every text, email, and voicemail where you asked the contractor to finish the work or return the deposit. These show you gave them a reasonable opportunity before suing.
Who This Approach Is For
- Homeowners who paid a contractor a deposit for renovation, repair, or construction work that was never completed or was done so poorly it needed to be redone
- People whose contractor stopped returning calls after taking the money
- Anyone with a clear paper trail (payment proof, communications, contract) and a claim under $50,000
- People comfortable attending a hearing and presenting their evidence in person
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Who This Approach Is NOT For
- Disputes where the contractor completed the work and the disagreement is over quality standards that require expert testimony — an expert witness adds cost and complexity that may justify a paralegal
- Claims over $50,000 — these go to Superior Court under the Simplified Procedure (Rule 76), where a paralegal or lawyer is strongly recommended
- Situations where the contractor has disappeared entirely and you cannot find a current address for service — locating an evasive defendant may require a paralegal's skip-tracing resources
- Active residential tenancy disputes (the Landlord and Tenant Board has exclusive jurisdiction)
Tradeoffs
Self-represented filing:
- The guide plus filing fee totals under $140 before service and other costs, versus $1,100 to $3,600+ for a guide, filing fee, and paralegal
- You control the timeline and learn the system for any future claim
- Contractor disputes are among the most straightforward claims in Small Claims Court — clear facts, provable damages, and standard evidence
- You attend the settlement conference and trial yourself, which means taking time off work
Hiring a paralegal:
- They handle the paperwork, service logistics, and court appearances
- They can spot issues you might miss — limitation defences, corporate structures, or problems with your evidence chain
- The cost can approach or exceed the deposit amount on smaller claims, making the economics questionable
- Under Section 29 of the Courts of Justice Act, ordinary costs awards (excluding court filing fees and reasonable disbursements) are capped at 15% of the amount claimed, subject to an exception for unreasonable conduct. Any costs award is discretionary.
Frequently Asked Questions
How much does it cost to sue a contractor in Ontario Small Claims Court?
For an infrequent claimant, the Plaintiff's Claim fee is $108, the Form 11B default judgment request fee is $94, and setting a trial date costs $308. Frequent claimant rates are $228, $128, and $403, respectively. Form 11B applies only to a debt or liquidated-demand claim portion noted in default; its fee is not an extra charge in an ordinary defended case that goes to trial. A filing guide adds $24 for the procedural instructions and worksheets. A paralegal would add $250 to $3,500 on top of those court fees.
Can I claim the cost of hiring a replacement contractor?
You can claim monetary losses caused by the contractor's failure, up to the $50,000 limit. A replacement contractor's invoice and proof of payment can support claimed completion or repair costs, but the amount depends on the value of work received and the loss you can prove. Do not add the full deposit and replacement cost automatically.
What if the contractor is not a registered corporation?
If the contractor is a sole proprietor, name the individual owner by their legal name and add "carrying on business as [trade name]" on Form 7A. A partnership may be sued in its firm name; to make individual partners personally liable, serve a Notice to Alleged Partner (Form 5A).
What if the contractor files a counterclaim saying I owe them money?
If the contractor files a Defendant's Claim alleging you owe additional payment for work completed, the court addresses both claims together. For a straightforward "no work was done" deposit recovery, a counterclaim is unusual. If the dispute becomes a quality-of-work argument with competing evidence about what was completed, eligible callers who cannot afford a lawyer can contact Pro Bono Ontario (1-855-255-7256) for a consultation of up to 30 minutes to assess whether they need representation.
How long will the whole process take?
There is no single timeline from demand letter to resolution. A demand letter typically gives the contractor 10 to 14 calendar days. Eligible liquidated claims can be issued automatically through the E-Filing Service; unliquidated claims require clerk review. You have six months to serve the claim. If a Defence is filed, the court schedules a settlement conference; if the matter does not settle, the court sets a trial date.
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