Choose the question the assessment must answer
A repair diagnosis, an equipment replacement survey and a whole-home energy assessment have different purposes. Start by writing the decision you are trying to make: restore a faulty system, address uneven rooms, replace equipment or coordinate a renovation. Ask the assessor what they will investigate and deliver for that decision.
Record which rooms are affected, when the issue occurs, the current system and any recent building changes. If you have already received a diagnosis, send the written finding with your request. A quote built on a different explanation can describe a different job even when the equipment brand is the same.
| Your situation | Assessment to discuss | Useful output |
|---|---|---|
| A system stopped working | Equipment diagnosis | Written fault and repair options |
| Replacement or new heat pump | Installation survey and sizing | Equipment selection, design assumptions and work scope |
| Persistent room-to-room discomfort | System, airflow and building investigation | Findings and proposed changes |
| Insulation and several home upgrades | Whole-home energy assessment | Priorities and how upgrades affect the HVAC project |
| A substantial renovation | Coordination with designer and relevant trades | Named responsibility for each design and installation task |
Bring in a home energy assessor when the building is part of the question
The US Department of Energy explains professional home energy assessments and the range of evaluation they may include. Ask which observations or tests your appointment includes and what report you will receive. An energy assessment and an equipment repair visit need not cover the same questions.
If you are changing insulation, windows or room use, share the planned changes before equipment is chosen. Ask the installer and assessor how they will exchange findings. Decide who owns the final equipment design rather than expecting an energy report alone to become an installation proposal.
Ask for a property-specific installation proposal
ENERGY STAR's hiring guidance recommends a home evaluation and written comparisons. Give each contractor the same property information, comfort priorities and planned changes. Ask how capacity and equipment choice were determined.
Request an explanation of distribution, controls and any electrical or building work. Write down what remains unassessed and whether another specialist must visit. If an architect or designer is involved, include the mechanical scope in the project coordination and agree who checks interfaces with other trades.
Agree the documents before booking the assessment
Ask for the survey fee, the work included, the expected output and whether that fee is credited against installation. If you want an independent assessment, ask how the assessor is paid and whether equipment sales are part of the service. Independence is a question to resolve with the provider, not something established by a job title.
- Current equipment identity and observed conditions
- Sizing or design assumptions relevant to the proposal
- Required distribution, control and electrical work
- Open questions and responsibility for resolving them
- Equipment and labour warranty terms
- Installation checks and handover records
Turn the findings into the same request for each contractor
Summarise the decision, report findings, property changes and work you want priced. Send the same information to your shortlist and ask each company to mark inclusions and exclusions. Keep the report with the quote so later changes have a clear starting point.
Compare the answers in the HVAC quote worksheet. Prepare the appointment with information for an HVAC visit, or explore heat pump installation professionals.
Sources and review date
The linked DOE and ENERGY STAR guidance was checked on 7 October 2026. The worksheet and document questions are an editorial planning framework; specific assessment scope and local requirements must be agreed for your property.