An Ontario repair business must give you a written estimate before it can charge for repairs, unless you decline the estimate and agree to a maximum amount. A written estimate limits the final bill, while an agreed maximum cannot be exceeded. These requirements come from the Ontario government’s car repair guidance, checked November 2026; this guide explains how to use them before authorizing work.
Choose a written estimate or an agreed maximum
The rules cover motor vehicle repairs by businesses, including garages, dealerships and body shops. According to the Ontario government’s guidance, checked November 2026, they are set out in Part VI of the Consumer Protection Act, 2002 and Ontario Regulation 17/05.
A written estimate gives you a description of the proposed work and its expected cost. If you decline one, agree to a maximum amount before work starts and keep a written record of that agreement. The shop cannot treat declining an estimate as permission to spend whatever it considers necessary.
This is general information, not legal advice. The Ministry handles consumer complaints; a court decides legal disputes brought before it. For the official explanation and changing requirements, verify with the Ontario government’s car repair rights page.
Understand the estimate fee and the posted sign
A shop may charge for an estimate, but it must disclose the fee in advance. According to the Ontario government’s guide, checked November 2026, section 57 covers examining the vehicle, reassembling it and replacing parts damaged during that examination. The shop cannot charge the estimate fee if you authorize the repair before the vehicle is reassembled.
Ask what the examination involves and when the shop expects to reassemble the vehicle. Keep the fee disclosure with your paperwork so that you can compare it with the final bill.
The shop must also display a clear sign explaining its charging practices. Section 60 and regulation section 50 require information about written estimates, estimate fees, how labour is charged, parts commissions, other charges such as storage, and when removed parts are returned.
Read the sign before leaving your keys. If its terms are unclear, ask for an explanation; the same approach helps when choosing a repair shop.
What the written estimate must show
An estimate should identify the vehicle, describe the repair precisely and show how the total is calculated. The following requirements come from regulation section 48, as explained in the Ontario government’s business guide, checked November 2026.
| Item | What it should show |
|---|---|
| Customer and business | Customer and repair business details. |
| Vehicle identification | Make, model, vehicle identification number, licence plate number and odometer reading. |
| Proposed work | An exact description of the work to be done. |
| Parts | A list identifying each part as new, used or reconditioned, with its price. |
| Labour | The labour total and how it is calculated. |
| Other charges | Itemized charges beyond parts and labour. |
| Total and limit | The estimate total and a statement that the final cost cannot exceed it by more than 10 per cent. |
| Timing | The date given, expiry date and expected completion date. |
Look for descriptions that let you understand what you are approving. If an entry says only “repairs” or combines unexplained charges, request clarification before authorizing it.
What to check before leaving the vehicle
- Confirm that the estimate identifies your vehicle correctly.
- Compare the proposed work with the symptoms you reported.
- Check the condition and price of the proposed replacement parts.
- Ask about unfamiliar labour, supplies or storage charges.
- Keep a copy of the estimate or agreed maximum.
- Give clear contact instructions for requests to authorize additional work.
Authorize specific work and control additional repairs
A signature should approve work you understand. The Ontario government advises never signing a blank work order. Ask the shop to complete the description and charges before you sign.
Work must be authorized before the shop charges for it. Sections 58–59 and regulation section 49 govern authorization; for verbal approval, the shop must record the authorizing person’s name, the date and time, and contact details.
Keep your own record of telephone approvals. Note the work discussed, the amount approved and who spoke with you, then ask for written confirmation. Receiving an estimate and approving the repair are separate decisions.
When the shop finds another problem
Ask for an explanation of the finding, the proposed repair and its effect on the total. The shop needs your authorization for additional work before charging for it. Record any revised scope and amount clearly.
If the issue involves a warning light, describe when it appeared and how the vehicle behaved. The guide to dashboard warning lights can help you describe the symptoms, but diagnosis is still needed.
Apply the billing limit, including insurance repairs
The final invoice cannot exceed a written estimate by more than 10 per cent under section 58(2). Illustration only, not a repair quote: an estimate of $500 means a final bill of no more than $550 for the estimated work. These round figures demonstrate the rule.
That allowance does not authorize extra repairs. If you declined an estimate and agreed to a maximum instead, the total cannot exceed that maximum. Compare any proposed change with the original agreement before approving it.
The estimate must be the same whether you or an insurer pays. This is the requirement in section 64, according to the Ontario government’s business guide checked November 2026. For changing requirements, verify with the official guide for auto repair businesses.
At collection, compare the invoice with the estimate and your authorization records. For the separate requirements covering itemized invoices and offers to return replaced parts, see repair invoices, returned parts and warranty rights.
Frequently Asked Questions
Can I decline the written estimate?
Yes, provided you agree to a maximum amount. Keep a written record of that limit, because the total cannot exceed it.
Does approving repairs mean I must pay the estimate fee?
Not necessarily. The estimate fee cannot be charged if you authorize repairs before the vehicle is reassembled. Any estimate fee must have been disclosed in advance.
Can a shop add work because it seems necessary?
The shop must obtain authorization before charging for additional work. Ask what was found, what repair is proposed and how the amount will change before giving approval.
What should I do if the bill exceeds the agreement?
Compare the bill with your estimate, maximum amount and authorization records, then raise the discrepancy with the shop in writing. The Ontario government’s guidance, checked November 2026, warns that a shop can keep an unpaid vehicle and may register a lien. The Ministry handles consumer complaints, while a court decides disputes brought before it.