Dryer fires trace back to the same short list of causes: lint buildup, restricted airflow, and a vent setup that was wrong the day it went in. The U.S. Fire Administration reports that failure to clean was the leading factor, at 31 percent, in home clothes dryer fires from 2018 to 2020. None of the fixes are expensive. They come down to habits and to knowing what to look at.
Clean the lint trap every load
The lint screen catches part of what a dryer produces. The rest travels into the vent on every cycle. The NFPA advises cleaning the lint filter before or after each load, and that is the habit that does the most for the least effort. Clearing the screen before every load, rather than when it looks full, keeps the airflow through the drum high and pushes less lint down the run.
Wipe the trap slot itself with a damp cloth now and then. Dryer sheet residue leaves a film across the screen that cuts airflow even when the screen looks clear, and a rinse under the tap every few months takes it off.
Give the dryer room behind it
A dryer shoved flat against the wall crushes the transition hose at the elbow, choking the system at the one point where all of it starts. A few inches of clearance protects that connection and makes it possible to look at it twice a year. Keep boxes and laundry baskets off the back of the machine as well, since the cabinet gives off heat that has to go somewhere.
Keep the laundry area clear of what burns
Detergent boxes, dryer sheets, and cleaning supplies stacked on top of the dryer belong on a shelf a few feet away. The cabinet runs hot through a cycle, and the NFPA's guidance is to keep the area around the dryer clear of things that burn. This matters most in the small laundry closets common in condos and townhomes across Somerville, Bridgewater, and Franklin, where every flat surface near the machine invites storage.
Choose the right vent material and keep the run short
Rigid or semi-rigid metal duct is the safer run, because it has none of the ridges that catch lint the way flexible foil and vinyl accordion venting does. If the house still has the accordion style, common in basement laundry setups through Rahway, Linden, and Plainfield, replacing it slows how fast lint collects. Length and turns matter as much as material. Every elbow is a ledge, so a short run with two turns clears more completely than a long one with five.
Build a regular vent cleaning habit
Even with a spotless lint screen, the vent itself collects lint on every load, so it takes periodic clearing. Tie it to something already on the calendar, the seasonal HVAC filter change or the chimney check before winter, and it stops being a thing you have to remember on its own. Larger households, homes with pets, and long vent runs reach the same buildup sooner than a short run serving two people.
Step outside while a load is running and watch the termination cap. A steady push of warm air holding the damper flap open means the run is clear. A flap that barely lifts is the early signal, and it shows up long before the burning smell or the clothes that come out damp after a full cycle.
None of this takes tools or much time. It takes consistency: the lint screen, the clearance behind the machine, and a look at the flap outside, treated as part of doing laundry rather than as a response to a problem.
Once the run itself has years of lint in it, habits alone will not bring it back, and dryer vent cleaning clears the full length from the transition hose to the termination cap. Go watch your own flap on the next load. That thirty second check tells you which of the two situations you are in.