How Is An EPC Calculated?

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Energy Certificate

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John L.
Hi Niki was fine but you gave her the wrong date at the beginning to carry out the inspection so it was a week later than was arranged with you which was annoying for us having to take time off 2 weeks running!
Erhan E.
Great experience overall. Jhonell is very efficient, on-time, courteous and information. Good communication throughout. Certificate processed in under 2 days. Recommend to everyone.
Alan T.
The assessor arrived on-time, was very polite and friendly and went over the whole property including the loft and outside. All-in-all I am very impressed with him and the service,
Kamal B.
Great communication, connector reached out to me ahead of the appointment to confirm arrangements, he turned up on time and was friendly and professional. He answered all my questions satisfactorily. Pricing was competitive, he was time efficient with the assessment and issues the certificate by the end of the day. Excellent service and very pleased overall. Would highly recommend Harsh for your EPC needs
Karen C.
Sateesh was professional throughout, confirming the appointment before he was due , came on the scheduled appointment time and explained what he was doing during the a0
Syed A.
The contractor was very prompt, communicated very well prior to arrival. Knowledge and expertise was very good, responded to all queries I had answering all questions well. Inspector completed the whole inspection very thoroughly over multiple floors without any disruption. Very polite, courteous, came with own ladder and equipment. At the end explained the process and also reasons why there maybe higher energy usage and what could be done to improve energy performance. Definitely5*****
Roger B.
Phoned when on her way. Called during inspection to check issue and then called to report the results of post inspection research. Friendly and cheeful person.
Nick E.
George came to do my energy certification,he was very professional and knowledgeable and was extremely pleasant and thorough in the process,I would certainly recommend him to anyone. A +
Natasha P.
Everything was great. Easy to organise, Peter came on time and the process was quick and straightforward and I had the EPC in my inbox by lunchtime. Thanks v much - a 5* experience.
Guiyi L.
Jhonell contacted me beforehand to confirm his arrival time, showed up on time, and promptly produced the report the day after. I will use him again next time.
David M.
Paula arrived at my house and knocked at the doors back and front with no answer.She rang me to say she was unable to gain access to the property,I asked her to open the door and shout for my daughter in law.There was no reply and she entered and called out up the stairs, my daughter daughter in law was in a bedroom.Paula explained that she was there to carry out the EPC survey and did so.Paula rang me again to say it was complete and I would receive my certificate online.
Paul C.
Andrew was brilliant, he happily changed the time of my appt that I had requested, he was very nice, easy to talk to and I was very satisfied with the job. Definitely got the right person, would fully recommend using him.
Martyn T.
Emma was very professional and helpful. The inspection was thorough and efficient and the link to the certificate was available before Emma even left the property!
Kat F.
Took a few days to get the certificate due to Bank hol and a software update but very friendly service. There was an email to explain about the software but it went to my spam so I hadn't seen it. I sent a text, which was promptly answered. I also received a text to inform me the cert had been sent, which was very helpful as that had also gone to my spam. This was at 7pm. So he had sent it out of normal working hours which, was really appreciated and shows he cares about his customer. Thank you!
Mark S.
Very satisfied with organisation, timeliness and performance during the visit. The process was low key and efficient to a level where my tenant was barely disturbed, having no adverse comments at all. Ensuing report was thorough and informative, issued in a reasonable timespan. Will happily use Furqan’s EPC services again in future, great work at a reasonable rate. Liked the website job request where I could add extra detail and requests, really useful as didn’t personally attend on the day.
Z C.
Nirav did a great job, he was professional, contacted me ahead of schedule to arrange the logistics of his visit, was on time for the appointment and did his assessment in the allocated time and kept me informed on the necessary steps to take in order to successfully complete the assessment. I would recommend booking Nirav for your EPC.
Jeremy C.
Aran provided a call on the morning to confirm his arrival time, he arrived promptly and explained the process fully and completed the work quickly and professionally.
Ivana J.
Very professional. Called me to confirm the time, notifies me of a slight delay. Friendly and personable during the appointment. The report was ready less than 24 hrs later. Definitely recommend
Lyndsey H.
Joel turned up on time and was polite and professional. Joel gave me advice on some things that I could do to improve my energy efficiency. I received my certificate very quickly after the appointment
Sheraz D.
Furqan did a great job, was very friendly and answered any questions that I had. The EPC certificate was also turned around very quickly. Would highly recommend
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Ηow Is An EPC Calculated?

An Energy Performance Certificate (EPC) is a document required by law whenever a property is built, sold, or rented in the UK. The certificate contains information about the property’s energy efficiency, and it helps potential buyers or renters understand the running costs associated with the property. 

The EPC report includes an energy efficiency rating from A (very efficient) to G (inefficient). It also provides recommendations on how to improve the property’s energy efficiency. So how is an EPC calculated? 

Here, we will explore how EPCs are calculated in the UK, what factors are taken into account, and what you can do to improve your property’s rating.

Who Can Calculate An EPC?

An accredited assessor calculates EPCs in the UK. The assessor will consider the type of property, its age, size, and location. They will also consider the energy use of the building and any measures that have been put in place to improve energy efficiency.

The resulting rating will be valid for ten years.

How Is An EPC Calculated?

The EPC for a building is calculated using a Standard Assessment Method (SAM). SAM considers the property’s build quality, its size and shape, the way it is used, the heating and hot water system, the type of glazing and insulation installed, and other factors. The EPC rating is then used to produce an energy efficiency indicator (EEI), which is a measure of how energy-efficient the building is.

The EPC calculation assesses the building’s ‘fabric energy efficiency’. This calculation considers the thermal conductivity of materials used in the construction of the property and its insulation levels. The external dimensions of the building are also taken into account, as this can affect how much heat is lost through walls, windows and doors.

Next, the ‘internal environment’ assessment looks at things like airtightness (which can impact draughts and heat loss), ventilation (which affects moisture levels and indoor air quality) and lighting (which affects both heating costs and carbon emissions).

Furthermore, the ‘renewable technologies’ assessment looks at any renewable energy sources used to help power the property, such as solar PV panels or wind turbines. This information is then used to produce an EPC rating for the property on a scale from A (very efficient) to G (inefficient).

When the EPC survey has been completed, your energy performance will be calculated, and an EPC Certificate will be produced. The EPC Certificate will be published to the government register within 24-48 hours of the energy assessor leaving the premises. A copy will also be sent directly to you via email. The EPC Certificate will also contain recommendations for improving your building’s EPC rating.

What Information Will The Energy Assessor Need, And How Is An EPC Calculated?

An energy assessor will need some information to calculate your EPC. They will need the dimensions of your property, details about the heating and hot water system, and information about the insulation and glazing. The energy assessor will input this information into a software program that will generate an EPC for your property.

Hire A Professional Energy Assessor!

The EPC calculation process is relatively straightforward and can be completed by any qualified assessor. However, it’s important to remember that the EPC is just one tool that can be used to assess the energy efficiency of a building. 

Many other factors need to be considered when making energy efficiency improvements, such as cost, feasibility, and impact on occupants. Ultimately, the decision about whether or not to make changes should be based on a comprehensive analysis of all factors involved.

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