A home energy assessment is a structured look at how your house uses and loses energy. An inspector reviews the building, checks heating and cooling equipment, and looks for drafts, insulation gaps, and moisture concerns. The visit often includes measurements or diagnostic tests, followed by a summary of findings. Knowing what to expect can help you prepare, ask useful questions, and understand which improvements may make your home more comfortable and efficient.
Before the Inspection
The inspector may ask about rooms that feel too hot or cold, drafts, condensation, utility bills, and equipment problems. Think about when these issues occur and where you notice them. Gather recent energy bills if available, and make a list of questions. This background helps the inspector connect what you experience with conditions in the house.
Make key areas accessible before the visit. Clear space around the furnace, water heater, electrical panel, attic hatch, and crawl-space entry if you can do so safely. You do not need to take apart equipment or move heavy items. Tell the inspector about renovations, leaks, or past repairs that could affect the assessment.
The Home Walkthrough
The visit commonly starts with a walk through the home, including the attic, basement, crawl space, and garage when accessible. The inspector checks insulation, windows, exterior doors, vents, and visible ductwork. They may look for gaps around plumbing or wiring, signs of water entry, and areas where indoor air can escape or enter.
Heating and cooling systems receive a visual review, along with filters, thermostats, and accessible ducts. The inspector may also check water-heating equipment and household lighting. They are looking for conditions that affect energy use, comfort, or safe operation—not simply counting appliances. If an area cannot be reached or assessed, ask how that limitation affects the results.
Tests and Measurements
Depending on the assessment, the inspector may use tools to measure air leakage, temperature differences, or airflow. A blower door test uses a temporary fan fitted to an exterior doorway to help identify how readily air moves through the home's shell. The inspector may use a smoke pencil or infrared camera to locate leakage paths or insulation gaps.
Tests vary by home and service, so confirm in advance what is included. Some checks require exterior doors and windows to be closed, while combustion appliances may need special safety precautions. Follow the inspector's instructions, and mention anyone in the household who may be sensitive to equipment noise or temporary changes in airflow.
Understanding the Findings
Findings may include air leaks, thin or uneven insulation, duct leakage, inefficient equipment operation, or opportunities to improve controls and lighting. The report should explain where each issue was found and how it may affect comfort or energy use. It may also note moisture or ventilation concerns that deserve attention before adding insulation or sealing openings.
Ask which recommendations should come first and whether any work requires a qualified contractor. Sealing drafts or improving insulation may be useful, but ventilation and combustion safety matter too. A clear report distinguishes observed conditions from suggested upgrades and explains any limits of the inspection. Kanawha Home Energy can help Charleston-area homeowners understand the assessment process and plan practical next steps.
A home energy assessment gives you a clearer picture of how your house performs and where improvements may help. Prepare by noting comfort problems and making inspection areas accessible, then review the findings and priorities with the inspector. If you are ready to learn more about your home, consider arranging an assessment with a local professional.