It would seem that the number of English funeral directors has grown considerably over the last few years and that they probably do not have the required facilities or the required licences and licenced premises. Cremation for certain requires the right premises and the correct licences issued by the Spanish Authorities.
In reality such businesses are no more than agents collecting business and passing it on to Spanish companies who then perform the services. They simply use their knowledge of the English language to act as a go betweens despite the fact that they introduce themselves as the company that is providing the service. There is no guarantee that they actually do know anything about funeral services.
Before you part with any moneys or deposit with an undertaker just because he is English, it is reccomened that you make full enquiries and ask to see their premises, their licences and even their hearses.
Using a long established company of Spanish undertakers, you will find that they speak English too and you will be saving the higher costs of the middleman (it is cheaper to find a friend to translate if need be) and you will avoidany sudden problems arising at a difficult and sensitive time.