Simple Facts

There are lots of "experts" in the field of saving energy. There are alot of middle men as well.

The simple facts are -
1. An EPC is required if you are selling or renting your property.
2. A DEA is the only person accredited and trained to carry out the EPC.
3. An EPC can save you lots of money on heating bills and provide good advice.

A DEA is accredited, trained and CRB checked. If you employ a DEA to carry out an EPC on your property then they are not going to try (or they shouldn't) to get you to change gas/electric suppliers or sell you anything else while they are a guest in your property. They are not bias and will not start recommending that Joe Bloggs down the road comes round to give you a quote for putting more loft insulation in.

If you are looking for an EPC for your property because you are intending to sell/rent your property or simply because you want a report to help you save money on your heating bills this winter then the only person to contact is a DEA.

There are several ways of finding a DEA -
Searching on the internet https://www.epcregister.com/searchAssessor.html  (Landmark site)
Letting your estate/letting agent deal with it for you
Ringing round
Using a middle man.

These middle men promise to organise the EPC for you and to save you lots of money in the meantime.
Whilst there are reputable "middle" men out there I would always recommend using a local DEA who has been recommended by someone you know or the estate agent. If you do use a middle man always "google" them prior to giving them any money to make sure that they are a reputable company. Just remember you are the client and as such you should be treated with respect and be provided with an accurate EPC by the DEA of your choice.