Hers Rating: Everything You Need to Know

Hers Rating

If you’re planning on buying or building a home, one term that you might come across is HERS (Home Energy Rating System). A HERS rating is a score that measures the energy efficiency of a home.

It provides a detailed analysis of the energy consumption of various systems and components of a house, such as insulation, HVAC systems, and windows, among others.

Understanding what HERS rating is and how it works is crucial in ensuring that you’re making the right energy-efficient decision for your home. In this blog post, we’ll dive into what HERS rating is, how it works, and why it’s an essential factor to consider when buying or building a home.

What is HERS Rating?

HERS rating is a comprehensive assessment of a house’s energy efficiency, that measures how well it uses energy to cool, heat, ventilate, and provide hot water. It’s a score ranging from 0-250+, with lower scores indicating that a home is more energy-efficient.

A HERS inspector will evaluate the energy efficiency features of the house, such as the HVAC system, insulation, air sealing, ductwork, lighting, windows, and appliances, among others. Based on the results, you will be given a HERS index score.

How Does HERS Rating Work?

The home energy rating process involves a series of tests to evaluate the energy efficiency of your home. A certified HERS inspector will use specialized testing equipment to assess factors like air leakage, ductwork leakage, and thermal performance of the insulation.

The tests performed include blower door tests, duct leakage tests, and infrared scans, among others. After the inspection, the inspector will calculate your home’s HERS index score and provide you with a detailed report that includes recommendations for making improvements.

Why is HERS Rating Important?

HERS rating is crucial in determining the energy efficiency and performance of your home. A HERS score can help you reduce your energy bills, enhance your home’s indoor air quality, and increase your home’s resale value. By knowing your home’s HERS index score, you can make informed decisions on how to improve your home’s efficiency and reduce your carbon footprint.

Benefits of a Lower HERS Rating

A low HERS score means that your home is more energy-efficient, which can have several benefits. Lower HERS rating can result in lower energy bills, better comfort and indoor air quality, and higher home value. Additionally, a lower HERS rating can signify the use of energy-efficient technologies, which typically lasts longer than traditional alternatives, thus reducing long-term costs.

How to Improve Your Home’s HERS Rating

If your home has a high HERS score or rating, there are various strategies you can use to improve its energy efficiency. For starters, you can improve insulation, seal air leaks, upgrade windows and doors, replace light fixtures with LED lights, upgrade to energy-efficient appliances, and use renewable energy sources. These changes can significantly reduce your energy bills and environmental impact while making your home more comfortable and valuable.


In summary, HERS rating is a scoring system that evaluates a home’s energy efficiency. It’s an essential tool to use when buying or building a home, as it can help you make informed decisions on how to increase your home’s energy efficiency and reduce your carbon footprint.

By understanding how it works and its importance, you can create a more comfortable and energy-efficient home. Ensure you work with a certified HERS inspector who can assess your home’s energy efficiency and provide you with a detailed report of the inspection results.