Fitted cabling where we wanted around and into the house, but although a detailed drawing was submitted to Chargemaster of the construction of the house over the doorway where the cabling hole had to be drilled. It was pointed out that the drill hole would have to pass through 120mm of Hardwood timber lintel and that a wood drill would be best for this. However the operator said he had not seen our drawing or the need for a wood drill and that he did not have a wood drill long enough. Hence he had to persevere with a masonry drill burning the hole through eventually, causing burnt wood smoke and taking him an additional half an hour instead of 5 minutes.. Hence lack of understanding/communication between their operatives. This was a 2nd visit as the first the operator could not get sufficient access for fitting the secondary consumer unit and we had to make alterations to enable this to happen. However the final job overall was satisfactory and staff pleasant.