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Dryer Vent Replacement and Rerouting for Wisconsin Homes and Businesses

Reduce the Risk of Dryer Vent Fires in Your Laundry Room!

Dryer vent lines aren't something most people give much thought to. In most cases, they move into a place with a washer and dryer already in place, along with the dryer vent line. They just assume everything's good to go.

Unfortunately, it often isn't.

For instance, Dryer Vent Wizard recently did a dryer vent inspection at a home in Madison. The homeowner had recently moved in and was concerned the vent line might be obstructed. Not only was the vent line clogged, but it was so poorly routed to the exterior exhaust vent that there wasn’t sufficient air flow though the line. Our Madison Dryer Vent Wizard cleaned and rerouted the line to take a more efficient route to the exhaust. Problem solved!

Bottom line: When dryer vent lines aren’t routed or installed properly, clothes don’t dry properly, you have to run multiple cycles to get your clothes dry, and you run the very real risk of a lint clog in the vent line igniting and causing a house fire.


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The Three Most Common Problems With Dryer Vent Lines

1. Dryer vent line is too long/takes too many turns

Dryer Vent Rerouting Milwaukee
When a long run of vent line is unavoidable, we'll use the Dryer-Ell joint from In-o-Vate Technologies. The gentle radius on these has an airflow equivalent to a straight vent line.
Vent lines with multiple 90-degree turns or that meander along the ceiling of a basement on an indirect route to the exhaust vent are all too common. This results in poor airflow through the vent line, which causes the exhaust to back up into your dryer. With this warm, damp air going back into your dryer, your clothes take longer to dry.
Per the International Residential Code for dryer exhaust vents, the duct should not be longer than 25 feet from the dryer to the exhaust vent (not including the transition hose that runs from the back of the dryer to the main vent line). Dryer vent lines rarely ever take a direct route to the exhaust vent, however. For every 45-degree bend, you need to deduct 2.5 feet from the total length of the vent line. For a 90-degree bend, you deduct 5 feet. 
In recent years, homebuilders have been placing the laundry room on the main floor of homes in a central location. This results in a vent running up to a roof exhaust, or taking a circuitous route to an exterior wall. In cases like this, when it’s impossible to get the exhaust vent length to 25 feet or less, it’s necessary to add an in-line booster fan to the vent line. These have an automatic pressure switch that detects when the dryer is running and start the fan automatically.

2. Poorly installed dryer vent lines

We often see dryer vent lines that have sections of duct cobbled together with screws or duct tape. These are both no-no’s.
Screws protruding inside the dryer vent line are like a magnet for lint. (Yes, even with a lint trap in your dryer there will be small pieces of lint that get past it). What starts out as a small blob of lint stuck to a screw will inevitably become a full-fledged lint clog. Vent lines should be smooth, with no obstructions of any kind.
Many homeowners will use duct tape to hold together sections of vent line. Trouble is, the glue on duct tape dries up from the vent line being heated by the dryer’s exhaust. Within a few months, the tape becomes brittle and starts to loosen, then the sections of the vent line start to sag and separate. Air flow is compromised, and if it’s a gas dryer there’s the risk of carbon monoxide entering their living space. 

3. Improper/unsafe dryer vent materials

Vinyl wrapped dryer vent line
Foil- or vinyl-wrapped vent lines should be replaced ASAP.

Occasionally, homeowners will install a vent line using PVC pipe. It’s smooth inside, so what’s the problem? Static electricity, that’s what! The plastic in PVC pipe is known for creating static electricity, which acts like a magnet for the damp lint particles in your dryer’s exhaust.

Another problem with PVC: it can only withstand temperatures to 140-degrees Fahrenheit. With all the hot air and moisture in a dryer vent line, the plastic is bound to soften over time—which creates the perfect scenario for lint to collect inside it.

The other improper vent materials commonly used are the flexible, white vinyl wrapped vent line and the shiny, Mylar foil wrapped vent line. These were quite popular for many years because the thin exterior material over lightweight metal spirals made for an easy-to-install vent line. Unfortunately, the nooks and crannies in these vents quickly collect lint. To make matters worse, the vinyl and Mylar material is flammable. If a lint clog in one of these ignited, the entire vent line would go up in flames within minutes.

Today, all dryer manufacturers put a warning label on the backs of their products cautioning against using the vinyl and foil-wrapped vent lines. Unfortunately, there are still homeowners using these. If you still have one, we highly recommend having it replaced with a rigid, galvanized steel dryer vent line.

Why Choose Dryer Vent Wizard of Wisconsin to fix your dryer vent line?

Unlike the local handyman or HVAC company, Dryer Vent Wizard is the only company in Wisconsin dedicated solely to dryer vent lines. Our technicians are all C-DET certified, meaning they have met the high standards established by the Chimney Safety Institute of America. Nobody knows dryer vents like Dryer Vent Wizard.

In addition to hundreds of rave reviews from our customers, Dryer Vent Wizard of Wisconsin has an "A" rating from the Better Business Bureau, HomeAdvisor.com has ranked us as an Elite Service Professional, and Angie’s List has given us the Super Service Award for recognition as the best dryer vent specialists in southeast Wisconsin.

Services provided by Dryer Vent Wizard of Wisconsin:

Wisconsin BBB Accredited Business - Click for Review Angie's List 2013 Super Service Award