All home and business kitchens are mandated by federal laws to install a commercial kitchen exhaust hood. Licensed contractors and commercial kitchen experts are the best option to installing one properly. Such hoods are difficult and often complicated to install, so leave it to the professionals. Numerous codes and federal regulations must be strictly followed when installing, and trained staff professionals should always be knowledgeable and in full compliance. If you’re unsure, challenge the expert, and ask how he or she plans to install the hood; the answer should always be the same, and it should involve following legal guidelines.