Replacing Flex Duct With Rigid

Both types of ductwork have specific features pros cons and specifications.

Replacing flex duct with rigid.

Rigid and flex ductwork. To hire a duct and vent professional to install or remove your ducts and vents you are likely to spend between 80 and 180 total. Ductwork replacement costs of less than 1 000 to more than 6 000 covers a lot of ground. Long poorly supported runs of flex duct sag stress and separate rigid ducting systems often called hard pipe are prone to their own brand of installer pitfalls particularly extra duct length if cutting off is awkward or just too time consuming unnecessary dead end extents are sometimes capped off and left.

The last connection to save you from making hard connections. The supports need to be at the manufacturer s recommended spacing but no longer than 4 maximum. These are rigid ductwork and flex ductwork. The price of a duct and vent professional can vary depending on your area.

Slip a clamp over the end of the flex duct. To prevent problems use saddles or straps to support at regular intervals 4c 4d follow the manufacturer s instructions but in case they get lost here is a list of best practices for. Slide at least 1 inch of the core past the beads at the end of the air handler or vent boot. Sometimes the best route for a flexible duct run is up and over an obstruction.

The average cost for a duct and vent professional is 150. We have talked about ducts being a channel from your hvac system throughout your home. Homeadvisor s ductwork installation and replacement cost calculator gives averages prices to add new hvac ducts to your attic or crawl space. If you re going as far as replacing flex with pipe also use duct sealer.

Now there are two major types of air ducts that you can choose depending on what you want and need. Explore costs to repair or replace air ducts. Seal all metal to metal connections. Here are the factors that will determine where on that range your project will fall.

The official recommendation from the adc is that flex ducts should sag no more than 1 2 per foot of length between supports. Another biggie that i see all the time is sagging ducts. If you can replace all flex duct do so but accepting 1 or 2 feet of flex at the end of a pipe run is acceptable. But without proper support ducts can develops sags or kinks that reduce airflow 4a 4b.

This in theory is what flex duct should be used for. Wrap the end of the core twice with metal tape.