First, understand the fault.
A furnace that stops heating can have different causes. The symptom alone does not tell you whether a small repair or a larger change is needed. Ask a qualified contractor to explain what failed, how it was assessed and what the proposed work includes.
This guide is a conversation checklist, not a diagnosis or a reason to open the furnace yourself.
Compare the complete options.
| Ask about | Repair option | Replacement option |
|---|---|---|
| Scope | Which fault and parts does the quote cover? | What equipment, removal and installation work are included? |
| Total cost | Does the price include diagnosis, labour and applicable taxes? | Are venting, controls, duct changes and applicable fees included? |
| Warranty | What warranty applies to the part and labour? | What registration, service and warranty conditions apply? |
| Timing | Are the required parts available? | When could installation happen, and how long will heating be interrupted? |
Age is one piece of the picture.
Tell the contractor the approximate age, repair history and any changes in comfort. Ask whether the repair addresses an isolated fault or whether other concerns were found. Age alone is not enough information for this website to recommend a replacement.
Be specific about your home.
Describe rooms that feel colder, recent thermostat changes and any previous repairs. For a replacement quote, ask how the proposed equipment is selected for your home and whether the existing ducts or controls need attention.
For a Port Perry service enquiry, have your L9L postal code ready. Confirm the exact address, travel charges and availability with the provider.
Questions to keep beside the quote.
- What exactly failed, and what evidence supports the diagnosis?
- What is the total price, including assessment and labour?
- What work is optional, and what is necessary for the proposed repair?
- What warranty applies, and who handles a return visit?
- What happens if the repair does not resolve the reported problem?
Safety comes first. If you smell gas or a carbon monoxide alarm sounds, leave the building and call 911 from a safe location. Do not wait for this website’s form. See Enbridge Gas Ontario’s safety guidance.
Editorial checklist · Updated October 1, 2026. This independent enquiry website does not inspect equipment or provide technical diagnoses, prices or guarantees.