Unreliable, bad advice, downright worthless.

Unreliable, bad advice, downright worthless.
Our soil is only half isolated. It was much worse with the cavity wall, four times an appointment was made, one time they could not carry out the work, they had too little of a hose, two had canceled due to illness and staff shortages, the third time they did not show up because of an error in their planning, therefore last time apart from the agreement. Now looking for another one, stayed at home for nothing for days, what a misery, this is nothing short of a bad company.