How Much Does Rerouting a Plumbing Vent Cost?

Matt Marandola
Written by Matt Marandola
Updated November 4, 2021
A modern bathroom with a glass shower, a white toilet and a modern sink
Dmitry Bakulov/iStock / Getty Images Plus via Getty Images

The average cost to reroute a plumbing vent is around $500 on average

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The piping of a household is a modern miracle, as it utilizes the air flowing throughout the house at any given time to keep your lines moving. A plumbing vent pipe helps keep this process going by maintaining the air pressure throughout the pipes. But if you’re remodeling a bathroom, repiping a home, or even moving a wall, you may need to reroute your plumbing vent.

The final cost of moving a plumbing vent will be anywhere from $400 to upwards of $600, depending on the scope of the project, if any repairs are needed, and who you hire to tackle the project.

How Much Does Rerouting a Plumbing Vent Cost by Unit?

For materials alone, rerouting a single vent alone costs around $165. This covers the cost of the PVC or copper pipes and any primer, cement, flux, or solder needed to complete the job.

Rerouting a Plumbing Vent Cost Breakdown

The total cost of rerouting a plumbing vent depends on which pro you choose to hire for the job, what type of repairs you’ll need afterward, and how much material is used.


There are two types of professionals you can hire to tackle this job, either a plumber or a handyperson. Hiring a local licensed plumber will cost anywhere from $45 to $200 per hour. This ensures the job is bonded and warrantied, but you may need to hire a handyperson anyway if there's drywall damage.

If you opt for a local handyperson instead, the average cost is anywhere from $60 to $125 per hour. Not all handypersons are licensed, so warranties on work are not guaranteed. But, you wouldn’t likely have to hire someone else to tackle the repairs needed to complete the job.


Repairs may be needed if rerouting the pipes means cutting into the floor, roof, or walls. The cost to repair small holes in drywall can range anywhere from $35 to $100. Hiring a handyperson to reroute the plumbing vent may mean that the drywall repair price is included in the project, rather than coming in separately.

If you’re rerouting your plumbing vent pipe on your roof, then you can expect to pay around $950 on average for roofing repairs. Patching up a roof requires more material to ensure Mother Nature doesn’t make a surprise visit in your living room one day.

Floor repairs will come down to the flooring material you currently have. Expect to pay around $375 on average for flooring repairs, regardless of material.


Simple projects that only require a small PVC pipe, a little cement, and a cap will cost significantly less than a larger scope project. Small projects include rerouting an easily accessible plumbing vent underneath a sink or in a basement.

More extensive projects, such as rerouting a plumbing vent to exhaust in a different location of the home, will cause a significant price hike. This type of project typically includes drywall repair, roof repair, and much larger amounts of piping.

Common materials needed for this type of project include:

  • CPVC piping: $0.75 per square foot

  • Pex piping: $1 per square foot

  • Copper piping: $4 per square foot

  • Primer: $25 per gallon

  • Paint: $35 per gallon

  • Cement: $0.25-$0.50 per pound

  • Flux: $5 per 8 oz.

  • Solder: $20 per 8 oz.


Doing work on the roof may require a permit. You should ask your local municipality if this is necessary, as it varies from city to city. Minor permits for this type of project cost anywhere from $50 to $200 on average.

How Much Does Rerouting a Plumbing Vent Cost to Do Yourself?

Because of the complex nature of working with the plumbing system of your entire home, it’s best to let a local professional handle this job. If the new pipes aren’t installed correctly, your home's sewage system may start to back up, and the lines act irregularly. Of the different types of plumbing repairs, this would fall under repairing a water main and likely cost around $900 on average.

FAQs About Plumbing Vents

How do you know if the plumbing vent is causing plumbing problems?

Constant problems with plumbing throughout the home may point towards the plumbing vent being the culprit. If a blockage or clog occurs in the plumbing vent, it can quickly lead to the entire plumbing system throughout the home failing. Tackle clogs as soon as they happen and if it’s a constant problem, bring in a local plumber to look at repairs.

Be on the lookout for multiple points of the plumbing system causing problems, such as if there’s a strong scent coming from the home or if you notice the plumbing vent on the roof is damaged.

Why are plumbing vents important?

Beyond keeping the entire plumbing system flowing, plumbing vents also help control gas and odors from entering the home. A sure sign the plumbing vent is failing or needs repairs is if there’s a strong sewage scent coming from multiple points of the home.

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