Yes, dryer vent cleaning is crucially important to be performed regularly by a qualified technician! Dryer vent cleaning is necessary to eliminate the flammable lint build up within the vent system. This build up can catch fire and spread throughout the house, restrict your dryer's ability to perform, create blockages leading to water damage and cause premature dryer repair/replacement. Often it is best to get on cleaning plan for service so this important aspect of home maintenance is not neglected.
Most dryer manufacturers recommend "regular cleanings"; the US Fire Administration recommends that you "clean lint out of the vent pipe every three months." Generally, however, a good guideline is to never go more than 1 year between dryer vent cleanings. Here at The Dryer Vent Guys we offer three cleaning plans--6 month, 9 month and 12 month discounts--but you can schedule whatever frequency works best for you.