As mentioned earlier, the scope of testing will determine how long the testing of areas will take. It may be that you only need one sample taken in one room. It could be you are doing a multi-level apartment building renovation where many samples will need to be completed. It all depends on the scope of work being completed. Once the samples are taken and sent to the laboratory, the turnaround time for results are quite quick, requiring 48 hours for the laboratory to get their results. This again depends on the scope of work. Contacting Air Quality Testing to do an inspection is the best way to get an accurate timeline of what is needed.