Ontario repair businesses must provide a written, itemized invoice, and qualifying parts and installation labour carry a minimum warranty of 90 days or 5,000 kilometres, whichever comes first, according to the Ontario government’s repair guide, checked November 2026. After a repair, compare the invoice with the estimate and authorization, check the warranty and keep your records. If the repair fails or a charge is disputed, document the problem and raise it with the business in writing.
Check the invoice before leaving
The Ontario government’s car repair rights guide, checked November 2026, explains the invoice requirements for motor vehicle repairs by businesses, including garages, dealerships and body shops. The document must be written, itemized and clearly labelled as an invoice. A payment receipt alone may not contain everything required.
| Invoice information | What to check |
|---|---|
| Odometer readings | Readings at drop-off and return should match your records. Ask about any unexplained difference. |
| Repair dates | Look for the dates of authorization, completion and vehicle return. |
| Work and parts | The invoice should describe the exact work and identify parts as new, used or reconditioned. |
| Itemized charges | Check labour, shop supplies and the total. Ask for an explanation of unfamiliar charges. |
| Estimate and payment | Look for the estimate total and payment method. |
| Warranty and rights | Look for warranty terms and the required statement about your rights under the Act. |
Read the description while the repair is still fresh in your mind. If you authorized a diagnosis followed by a particular repair, check that the invoice explains what was actually done. Ask the shop to correct missing or inaccurate information and provide a revised copy.
Compare charges and ask about removed parts
The final invoice cannot exceed the written estimate by more than 10 per cent. If you declined an estimate and agreed to a maximum amount, the total cannot exceed that maximum. Verify current requirements with the Ontario government’s repair rights guide.
Compare each charge with the work you authorized, including any later approval. Work must be authorized before it is charged for; an invoice does not itself establish permission. This guide’s explanation of written estimates and repair authorization covers what to check before approving additional work.
The shop must offer to return replaced parts, subject to exceptions described in the Ontario government’s guide, checked November 2026. Exceptions include parts you declined when authorizing the repair, parts for which you were not charged, and parts that must go back to the manufacturer or distributor under warranty. Ask which exception applies if a requested part is unavailable.
Understand the repair warranty
New or reconditioned parts and the labour to install them carry a minimum warranty of 90 days or 5,000 kilometres, whichever comes first. Read the invoice’s warranty terms alongside this minimum. The statutory coverage has exemptions, so do not assume every invoice item qualifies.
| Part or coverage | How the minimum warranty applies |
|---|---|
| New or reconditioned parts and installation labour | Covered by the statutory minimum, subject to the exemptions below. |
| Fluids, filters, lights, tires and batteries | Exempt from this statutory minimum warranty. |
| Parts not warranted when the vehicle was sold new | Exempt where the manufacturer did not warrant the part when the vehicle was sold new. |
| Parts under another warranty | Exempt where another warranty provides equal or greater coverage. |
| Used parts | The stated statutory minimum covers new or reconditioned parts. Ask what written coverage applies to a used part. |
The coverage and exemptions above are described in the Ontario government’s repair guide and auto repair business guide, checked November 2026. An exemption from this minimum does not explain every possible warranty or dispute. Check any separate coverage and verify current statutory requirements with the Ontario government.
If the repair fails, preserve the evidence
If a faulty repair causes a breakdown or unsafe condition, the Ontario government’s guide, checked November 2026, says you can have it corrected without charge at the original shop under the applicable repair warranty. If returning there is not reasonable, you may use the closest suitable shop. The original shop must reimburse the repair cost and reasonable towing.
Stop driving if the vehicle appears unsafe. Contact the original shop promptly, describe the symptoms and request a written response about correction and towing. If another shop must act, keep its findings, repair invoice and towing receipt, along with an explanation of why returning was unreasonable.
Keep your records
- The written estimate and any agreed maximum amount.
- The work order and records of additional authorization.
- The itemized invoice and payment receipt.
- Photos of the odometer at drop-off, collection and when the problem appeared.
- Messages about symptoms, promised work, warranty coverage and the shop’s response.
- Photos of the problem, another shop’s written assessment and towing documents.
Resolve a dispute in order
The Ontario government’s consumer guidance, checked November 2026, sets out the following approach. Keep each request specific: identify the disputed work or charge, explain the problem and state the correction or bill adjustment requested.
- Tell the original shop about the problem in writing. Attach relevant records and keep a copy.
- If there is no response, obtain a written assessment from another shop showing how the work was improper or the parts were poor.
- Send that assessment to the original shop and ask for a bill adjustment.
- If there is still no response, file a complaint with the Ministry through Ontario’s consumer complaint process, or consider court.
Use Ontario’s consumer complaint page to verify current submission requirements. For an independent assessment, this guide explains what to look for when choosing a repair shop. Explain that you need written findings about the disputed work.
Extended warranty and service-plan complaints go to OMVIC, while manufacturer warranty disputes go to the Canadian Motor Vehicle Arbitration Plan, or CAMVAP. Verify the applicable process with those bodies. This is general information, not legal advice: the Ministry handles consumer complaints, and a court decides legal claims brought before it.
An unpaid bill needs prompt attention. The Ontario government’s guide, checked November 2026, says a shop can keep your vehicle if you do not pay and may register a lien. Do not assume a complaint automatically requires release; seek legal advice about a contested bill.
Frequently Asked Questions
Is a payment receipt enough?
A receipt may show payment without explaining the repair. The shop must provide a written, itemized invoice containing the required repair, charge and warranty information.
Does a recurring symptom prove the repair was faulty?
A returning symptom is a reason to investigate, but it does not establish the cause by itself. Keep a record of when it happens and ask for written findings connecting the problem to the previous work.
Can another shop handle a breakdown under warranty?
The closest suitable shop may correct a qualifying faulty repair when returning to the original shop is not reasonable. The original shop must reimburse the repair cost and reasonable towing. Keep evidence supporting the repair and the reason for going elsewhere.
What if the mileage limit arrives before the time limit?
The statutory minimum ends at whichever limit comes first: 90 days or 5,000 kilometres. Check whether the written warranty provides longer coverage and whether an exemption applies.