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Short answer
Lint accumulation in a dryer duct is a recognised fire risk, and it builds faster on long runs, runs with several bends, and where flexible foil was used instead of rigid duct. Longer drying times are the everyday symptom. In multi-unit buildings the runs are often long and shared. That combination, length, bends and shared responsibility, is why apartment and condo dryer ducts are frequently the worst examples and the least often serviced, and why the person noticing the slow drying is often not the person who can authorise the work. Ask what length and route the quote assumes, whether the duct is cleaned from both ends, and who holds responsibility for the shared section in a multi-unit building.
Jobs this covers
- Dryer-vent cleaning
- Exterior termination clearing
- Accessible vent inspection
- Crushed or disconnected duct repair
- Transition-duct replacement
- Airflow and routing review
Common problems and warning signs
- Drying cycles take longer
- The dryer or laundry room becomes unusually hot
- Clothes remain damp
- Lint collects around the connection
- The exterior flap barely opens
- A vent is crushed, loose or excessively long
What service may include
Lint packs hardest at the exterior hood. Work may include disconnecting the appliance when appropriate, cleaning the accessible vent to the exterior, checking the termination, correcting eligible connections and documenting restrictions or routing defects that need repair.
What affects the recommendation and price
Long runs need cleaning more often. Vent length, elbows, roof or wall termination, appliance access, duct material, blockage severity, shared or concealed routing and repairs affect the service.
What is different around Burlington
Burlington's rental stock includes many older multi-unit buildings where dryer ducts run long and shared, and a tenant rarely has access to clean them. In a rental, the owner or manager is the one who can authorise cleaning the full run.
What a written quote should tell you
- The full length of the run and how many bends it has, since both drive how fast it reloads
- Whether the duct material is rigid or flexible foil, and whether replacement is recommended
- Whether the exterior termination and its damper are cleaned and checked
- Whether the dryer is disconnected and the connection point cleaned, or only the duct
- The recommended interval for this specific run instead of a generic figure
| Factor | Effect |
|---|---|
| Long runs, several bends | Faster reload, more frequent servicing needed |
| Flexible foil instead of rigid duct | Traps lint at every ripple in the material |
How to check and clear a dryer vent
Failure to clean is the leading contributing factor in clothes dryer fires. This check takes thirty seconds and the cleaning takes an hour.
Before you start: If the duct behind your dryer is white vinyl or plastic flexible hose, replace it. It is combustible, it collapses, and it traps lint in every ridge. Rigid or semi-rigid metal duct is what belongs there.
- Do the airflow test first. Run the dryer and go outside to the exterior vent. Put a hand in front of it. Strong warm airflow means the duct is clear. Weak or no airflow means it is blocked, regardless of how the inside looks.
- Unplug the dryer. Pull the dryer out and unplug it. For a gas dryer, be careful not to strain the gas connector while moving it, and if you are not confident, this is the point to stop.
- Disconnect the duct. Loosen the clamp and pull the duct off the dryer's outlet.
- Vacuum both ends. Vacuum the lint from the dryer's outlet port and from the duct itself, as far in as the hose reaches.
- Brush the duct run. Feed the rotary brush into the duct and run it on a drill, working it in and back out in stages. Lint will come out in quantity; have the vacuum ready.
- Clear the exterior hood. Go outside and open or remove the exterior vent cover. This is where lint packs solid and where most blockages actually are. Confirm the flapper moves freely.
- Reconnect and re-test. Reattach the duct with the clamp, push the dryer back without crushing the duct behind it, plug it in, and repeat the airflow test at the exterior vent.
- Wash the lint filter twice a year. The mesh filter can look clean and still be blinded by fabric softener residue. Wash it in warm soapy water with a brush, and let it dry fully before refitting.
Safety comes first
A burning smell, smoke, scorched material or active fire requires immediate emergency response. Stop using a dryer that overheats or has a visibly damaged exhaust connection until it is evaluated.
Verify current details
Confirm anything time-sensitive on the issuing agency or utility page before you rely on “Dryer vent cleaning and repair” for a project.
Common questions
Is cleaning the lint screen enough?
No. The screen protects the vent but does not prevent all lint buildup in the appliance connection and exhaust route.
Does the dryer itself need appliance service?
Possibly. A clean vent cannot correct a failed heater, sensor, blower or other appliance fault.
Can a roof-terminated vent be serviced?
Often, subject to safe access and weather. State the termination location when requesting service.
Why does flexible foil or plastic ducting matter?
Because the ridged interior catches lint and the material itself is a fire consideration. Codes and manufacturers generally call for rigid or semi-rigid smooth-wall metal duct for dryer exhaust, with any flexible transition kept short, straight and unconcealed. White vinyl or plastic flexible duct is not acceptable for dryer exhaust and should be replaced on sight. It is combustible, it collapses behind the appliance, and it accumulates lint in every ridge. If you have never looked behind the dryer, that is a five-minute check with a real payoff.
How do I know if my dryer vent is blocked?
Four signs. Clothes take longer than one cycle to dry, particularly towels and jeans. The dryer or the laundry room gets noticeably hot during a cycle. There is a burning or musty smell. And, the most direct test: go outside while the dryer is running and put a hand at the exterior vent. Strong warm airflow means the duct is clear, and weak or no airflow means it is not, regardless of what the inside looks like. That thirty-second check is the most reliable one available to a homeowner.
Can I clean my own dryer vent?
Yes. You should, at least the accessible parts. Pull the dryer out, disconnect the duct, vacuum the lint from the dryer's outlet and from the duct, and go outside and clear the exterior hood: the flapper on the outside vent is where lint packs solid and is the most commonly blocked point. Rotary brush kits that fit a drill are inexpensive and will clear a straightforward run. Where you should hand it over is a long duct, one with several elbows, or a run through a wall or ceiling you cannot access safely.
What happens if a dryer vent is never cleaned?
Clothes dryers cause thousands of residential fires a year in the United States, and failure to clean is the leading contributing factor. Lint is highly combustible, it accumulates in a duct carrying hot air, and a restricted duct makes the dryer run hotter. Before the fire risk there is a slower cost: a blocked vent means clothes take two or three cycles to dry, which wastes energy and shortens the appliance's life. If your dryer has started taking longer, treat that as the warning it is.
How often should a dryer vent be cleaned?
Annually is the standard guidance for a typical household, more often for a large family, for anyone drying pet bedding, or where the duct run is long or has several bends. The lint filter is every load, and worth noting, a filter that looks clean can still be blinded by fabric softener residue, which is why washing the mesh filter in soapy water once or twice a year is a genuinely useful habit that almost nobody does.
In an apartment building, who cleans the dryer ducts?
For shared or in-wall duct runs, the landlord or the association, because a tenant has no access to them and often no knowledge of the routing. For a tenant-owned dryer connected by a flexible duct within the unit, the connection is usually the tenant's to keep clear. The important part is that the risk is a fire risk affecting the whole building, so it is worth raising in writing rather than assuming somebody has it in hand. Long shared duct runs in multi-unit buildings are frequently never cleaned at all.
Is dryer vent repair work warrantied?
Cleaning is not a warrantied product, but a repaired or replaced section of rigid venting typically carries the installer's standard labor warranty, and if code-noncompliant flexible ducting is replaced with proper rigid metal, that is worth confirming was actually done, not just implied.