Beware of Polybutylene Pines in Older Homes

Think twice about purchasing a home with Polybutylene (PB) pipes. Polybutylene (PB) pipes were widely used in Florida residential construction from 1978 to 1995. Billed as a less expensive alternative to traditional copper pipes, up to 10 million homes across the United States were outfitted with PB piping during this period. Polybutylene pipes tend to degrade over time, creating small fractures and pinhole leaks. Any single fracture could eventually result in sudden failure, which generally ends up causing extensive damage to the home. A class-action lawsuit in 1995 resulted in nearly $1 billion being awarded to affected homeowners but the class action is no longer an option for compensation by current homeowners.

Many experts will tell you that PB pipe failure is not a matter of if, but when, and if you currently have polybutylene pipes in your home they have been there for many years. Polybutylene pipes take about 10-15 years to deteriorate, and sometimes you may not know you have a leak, especially if the pipes are behind sheetrock.

These leaks are a serious risk because they can create:

Ways to tell if you have PB pipes:

The easiest places to see polybutylene pipes in your home are…

A home inspection and/or 4-point inspection will determine if there existsPB piping, but only if it is visible. No home inspection, for the purpose of purchasing a home, will open walls to determine the existence of polybutylene piping. I advise my clients to assume that it exists if the home was built between 1978-1995.

If PB pipes exist in a home, you basically have 2 options:

1.  Replace the pipes with PEX (a more reliable type of plastic pipe)

2.  Wait until they rupture and pay for expensive water repair AND then re-pipe the home.

To replace polybutylene pipes or copper pipes, you’ll have to remove them and re-pipe your home’s entire plumbing system. This will likely involve opening walls and even floors.  Re-piping generally requires takes 1 – 2 days, dependent on the size of the home, followed by 2 – 4 days of drywall repair and floor repair and painting to return the home to its original appearance.

I advise my clients to think twice about purchasing a home with polybutylene piping unless you plan on doing extensive renovations. The home may be uninsurable in today’s insurance environment until this work is completed and as a result excludes buyers needing financing to purchase the home.