Effective management must involve the customer, and you must explain to them exactly what their role is - laundering, dryer cycles, bagging, etc. It is possible that the female bugs may have glued eggs to any surface in the infested rooms, including within electronic equipment, on curtains, anyplace on, in, or around furniture and beds, on the walls, behind floor molding and carpet edges, etc., and you need to treat in some manner every possible place where the bugs or their eggs could be found. If the customer is going to move out for a few days it is imperative that they not take bed bugs with them, meaning they must where clothing they have already run through the dryer and then saved in a sealed bag, they should not take other clothing or their luggage, etc. 

It may be less about the specific insecticide you choose than it is about the thoroughness of the application. Many different products are being used by our industry, but what I will offer is the list given by a speaker at the recent NPMA conference, of most used products. These are, in order of choice, Phantom, Temprid, Bedlam, Gentrol, Alpine, Transport, DeltaDust, Suspend, Tempo, Drione. This does not mean that other products may work well too if you place them where the bugs will rest on them for days at a time, and there also have been other new products on the market since this list was formulated. Also keep in mind the use of Nuvan strips for fumigating electronic equipment and other items that cannot be treated with heat or other insecticides. Many technicians also include some synergized pyrethrum liquid with their residual product, and this seems to help with the overall effectiveness of the material. 

For the past 8 or more years there have been tremendous numbers of articles and educational events on this pest, and if you have not taken advantage of these up to now it is imperative that you start. You must learn everything you can about the Common Bed Bug if you hope to be successful, and not expect to treat them as you might an ant or cricket or cockroach infestation. They are unlike any other pest we face. You need to be familiar with the various bed bug monitors that can be used to assist the overall effort. You need to recommend mattress and box spring encasements, and some of the most successful companies mandate their use by the customer.