Questions to Ask Before Furnace Installation
- Sizing should come from a heat-loss calculation
- Confirm venting and combustion air are addressed
- Confirm warranty separately for equipment and labor
- Get answers in writing where possible
Short list of must-asks
Are you licensed and insured? What did you recommend and why? Did you run a heat-loss calculation? What venting is required? What's included? What's the warranty on equipment and labor? What financing applies?
Questions to ask an HVAC contractor
- Are you licensed and insured to perform HVAC installation in my state?
- What system did you recommend and why?
- Did you run a load calculation for my home?
- What's included in the installation — equipment, labor, permits, thermostat, removal of the old system?
- What warranty applies to equipment and labor, and how long does it last?
- How do you handle ductwork issues that come up during installation?
- Is there a discount, financing, or seasonal promotion that applies?
- How will you protect my home during installation, and how long will the work take?
Ready to compare options?
Answer a few questions about your home and timeline, and HSRC can help connect you with a local licensed HVAC contractor.
Frequently asked questions
Ask each contractor to show their calculation. Sizing differences often come from different assumptions about insulation, infiltration, or design temperature.
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This guide is written to help homeowners understand common HVAC repair, installation, replacement, and quote considerations. It is educational and is not a substitute for an on-site evaluation by a licensed HVAC contractor. HSRC does not perform work directly, set contractor pricing, or guarantee availability — services and response times vary by location and provider.
A Clearer Way to Compare HVAC Installation Options
- • Learn what affects AC and furnace installation decisions
- • Understand repair vs. replacement considerations
- • Prepare better questions before speaking with a contractor
- • Use call or form options based on urgency
- • Get connected with local licensed HVAC contractors
Home Services Resource Center provides homeowner-friendly information and helps connect consumers with independent local service providers. HSRC does not perform HVAC work directly, set contractor pricing, or guarantee availability. Services, pricing, licensing, and response times may vary by location and provider.