What Does an EPC Check Involve

An Energy Performance Certificate, more commonly known as an EPC, is a vital document for homeowners, landlords and tenants in the UK. It provides a clear rating of how energy efficient a property is, using a scale from A to G, with A being the most efficient. Whether you are selling, letting or simply interested in understanding your property’s energy use, an EPC check is the process that leads to the certificate being issued. Many people are aware of EPCs as a legal requirement, but fewer understand what the check itself actually involves. Knowing the process in detail helps property owners prepare and ensures there are no surprises when an assessor visits.

Why EPC Checks Are Needed

EPCs were introduced to help improve energy efficiency across the housing stock in the UK. They allow buyers, tenants and landlords to understand running costs and environmental impact before making decisions. Legally, an EPC is required when a property is built, sold or rented. For landlords, there is also the added responsibility of ensuring that the property meets the Minimum Energy Efficiency Standards, which currently require an EPC rating of at least E in most cases. Because of these rules, the EPC check has become a routine part of property management and transactions.

Who Carries Out an EPC Check

Only accredited domestic energy assessors or non domestic energy assessors can conduct an EPC check. These assessors are trained to follow government approved methods and must be registered with the official scheme. Their role is to gather data about the property, input the information into approved software and generate a certificate that reflects the property’s current energy performance. Using an accredited assessor ensures the certificate is recognised legally and lodged on the national EPC register for future reference.

What the Assessor Looks At

When carrying out an EPC check, the assessor focuses on features that affect how much energy the property uses. They will look at the type and age of construction, the materials used in walls and roofs, and the presence of insulation. Windows and glazing types are also recorded, as these play a significant role in heat loss. The heating system is carefully checked, including the boiler type, controls, radiators and any renewable technologies such as solar panels or heat pumps. Lighting is also noted, especially whether low energy options such as LEDs are installed.

The Step by Step Process of an EPC Check

The visit begins with the assessor inspecting the exterior and interior of the property to establish the construction type and layout. They will then take measurements of floor areas and ceiling heights to calculate overall space. Next, they examine insulation levels in the loft, walls and sometimes floors if access allows. Heating systems are checked in detail, with information taken about the boiler, hot water cylinder, thermostats and timers. Windows and doors are noted, particularly whether they are single, double or triple glazed. Finally, the assessor records details of fixed lighting and any renewable technologies.

All of this information is fed into government approved software which calculates the property’s energy efficiency rating. The software also generates recommendations for improvement, ranging from simple low cost actions like installing low energy bulbs to larger investments such as upgrading heating systems or improving insulation.

How Long Does an EPC Check Take

The length of time depends on the size and complexity of the property. For an average three bedroom house, the assessment usually takes between 30 minutes and an hour. Larger or unusual properties may take longer, particularly if access to loft spaces or heating systems is restricted. After the visit, the assessor completes the data entry and the certificate is typically available within a few days, sometimes sooner.

What Happens After the EPC Check

Once the assessment is complete, the EPC is lodged on the national register and becomes accessible online. The property owner can download a copy free of charge, and agents or solicitors involved in a sale or tenancy can also access it. The certificate is valid for ten years unless a new assessment is carried out earlier. If significant improvements are made to the property, commissioning a new EPC can be beneficial as it will reflect the better rating and make the property more attractive to buyers or tenants.

Preparing for an EPC Check

Homeowners and landlords can help ensure a smooth visit by making sure the assessor has easy access to all areas of the property, including lofts, heating systems and meters. It is also sensible to have documents available for any recent upgrades, such as insulation certificates or boiler installation paperwork, as these can support the assessment. While the assessor does not carry out intrusive checks, they do rely on visible evidence and accessible information, so preparation helps to achieve an accurate rating.

Conclusion

An EPC check involves a detailed but straightforward inspection of the property’s energy related features. From insulation and heating systems to glazing and lighting, every part of the building that affects energy use is considered. The resulting certificate provides a clear rating and useful recommendations, helping property owners comply with regulations while also identifying ways to cut costs and reduce environmental impact. Understanding what the check involves makes the process less daunting and ensures that property owners can take full advantage of the insights provided by their EPC.