What Is an Energy Rating?

Understanding How Your Property’s Efficiency Is Measured

An energy rating is a measure of how energy-efficient a property is — showing how much energy it uses, how costly it is to run, and how it impacts the environment.
Every Energy Performance Certificate (EPC) includes an official energy efficiency rating, helping homeowners, landlords, and tenants understand how well their property performs compared to others.

At EPC Lancashire, we assess and rate properties accurately and professionally, giving you clear insight into your building’s energy performance and practical ways to improve it.


How Energy Ratings Work

Energy ratings are calculated using government-approved software that analyses details such as:

  • Type of construction and insulation
  • Heating systems and controls
  • Windows and glazing efficiency
  • Lighting and renewable technologies
  • Hot water systems

These factors combine to generate a score that’s then converted into a rating from A to G — with A being the most efficient and G the least.


🏠 The EPC Energy Rating Scale

RatingDescriptionColourTypical Performance
AExcellent🟩 Dark GreenVery low running costs and high efficiency
BVery Good🟩 GreenEfficient, well-insulated modern property
CGood🟨 Light GreenAverage new-build standard
DFair🟨 YellowTypical older home with moderate insulation
EBelow Average🟧 OrangeNeeds insulation or system upgrades
FPoor🟥 Light RedHigh energy use and costly to run
GVery Poor🟥 Dark RedVery inefficient, major improvements needed

Most UK homes fall between C and E, but small improvements — such as upgrading lighting or adding loft insulation — can often move a property up one or two bands.


🌿 Why Energy Ratings Matter

An energy rating helps you:

  • Reduce energy bills by identifying where energy is wasted.
  • Increase property value — buyers and tenants prefer efficient homes.
  • Stay compliant — landlords must meet minimum EPC rating standards.
  • Lower carbon emissions and help protect the environment.

Whether you’re selling, renting, or simply want to save money, knowing your energy rating gives you a clear picture of your property’s performance.


🔍 Improving Your Energy Rating

Simple upgrades can make a big difference:

  • Add or upgrade insulation (loft, wall, or floor)
  • Replace old light bulbs with LEDs
  • Install a modern, efficient boiler or heating controls
  • Seal gaps around windows and doors
  • Add renewable options like solar panels

At EPC Lancashire, we don’t just assess your property — we guide you on how to improve your rating and make your home more comfortable and sustainable.


📅 Find Out Your Property’s Energy Rating Today

Our fully accredited assessors provide fast, reliable, and affordable EPCs across Lancashire.
We deliver your energy rating and certificate within 24–48 hours of assessment.

📞 Call: 0751 813 5361
📧 Email: johnpaulhood2015@gmail.co