Dryer vent cleaning is an easily overlooked chore. But clogged-up vents can mean debris in your ducts and potential fire hazards. They also apply more wear and tear to your dryer, which can require an expensive repair or even replacement.
The National Fire Protection Association suggests cleaning dryer vents once yearly, whether you hire a pro or do it yourself. This may be required more often; it depends on how often you use your dryer and how many people live in your home. This is also why you should clean the lint filter diligently after every load. Not only does a lint-covered filter make your dryer work less efficiently, but it also pushes more debris into the vents.
Professional dryer vent cleaners bring an experienced eye and a knowledge of the most effective cleaning techniques. Particularly if you have a more extended dryer vent rather than one that vents directly outside through the wall, a professional can clean nooks and crannies that a DIYer might never even know existed.
While your pro is there, ask about ways you can improve your vents or slow down excessive lint. Their tips and tricks can be a major boost for you.