You have hired this company to complete work for you also it needs to be clear what you consider "clean".
After the usage of much Christmas pudding and turkey, a few of which has inevitably spilt and been ground into our carpets and floors, snow has lately been tracked into our homes by pets, kids, husbands and wives, and assorted other nuclear family members. Sometimes homes that have been built before 1978 cannot be professionally power washed since the paint could contain lead, also it is feasible for the contractors being fined.