How much does it cost to replace polybutylene pipes?
How much does it cost to replace polybutylene pipes?
$1,500 – $15,000 average total cost
Cost of replacing polybutylene pipe
The cost of replacing polybutylene pipes typically ranges from $1,500 to $15,000, depending on the home size, amount of piping, and the chosen replacement material. The cost to replace polybutylene plumbing with plastic PEX or CPVC pipes is cheaper than replacing it with high-end copper materials.
| Home size | Average cost (PEX) | Average cost (copper) |
|---|---|---|
| 2 bed / 1 bath | $1,500 – $2,500 | $2,500 – $4,000 |
| 3 bed / 2 ½ bath | $3,000 – $7,000 | $4,500 – $10,000 |
| 4 bed / 3 bath | $6,000 – $8,000+ | $8,000 – $15,000+ |
What is polybutylene pipe?
Polybutylene pipe is a gray, blue, or black plastic pipe commonly used in residential plumbing systems from the late 1970s to the mid-1990s. This material was popular due to its low cost and ease of installation but is not up to current US building codes.
Why does polybutylene pipe need to be replaced?
Polybutylene pipes are prone to deterioration from chlorine and other chemicals in the water supply, leading to leaks and pipe bursts. Replacing polybutylene pipes with more reliable materials like copper or PEX can prevent costly water damage and ensure the long-term safety and value of your home.
Cost to replace polybutylene pipes by material
When replacing polybutylene pipes, a plumber can help you choose the appropriate material. PEX is currently favored for its versatility, durability, and cost-effectiveness. While it costs more per linear foot than CPVC, it is easier to install, reducing labor costs. Copper is another excellent choice but may be cost-prohibitive.
| Pipe material | Average cost per linear foot* |
|---|---|
| Chlorinated polyvinyl chloride (CPVC) | $0.50 – $1.00 |
| Polyethylene (PEX) | $0.50 – $2.00 |
| Copper | $2.00 – $10.00+ |
*Material costs only; labor not included
CPVC pipes
Chlorinated polyvinyl chloride piping costs $0.50 to $1.00 per linear foot and is an affordable and corrosion-resistant option for home repiping. It is suitable for both hot and cold water supply lines but can be more complex to install compared to PEX.
PEX pipes
Polyethylene (PEX) piping costs $0.50 to $2.00 per linear foot for the flexible piping. It is ideal for retrofitting existing homes, as plumbers can easily thread it through walls and around obstacles. Plumbers also prefer PEX for its freeze resistance and noise reduction in water supply lines.
Copper pipes
Copper is the most expensive option for home repiping at $2 to $10+ per linear foot for materials alone, but it offers superior durability and natural antimicrobial properties. It is excellent for water supply systems and is often preferred in high-end remodels or in areas with aggressive water conditions.
Polybutylene pipe replacement cost factors
Beyond the home size and the pipe material choice, several other factors affect the cost of replacing polybutylene pipes:
Plumbing system complexity: Larger homes with multiple bathrooms and fixtures require more materials and labor, increasing the overall cost. Pipes in hard-to-reach areas such as crawl spaces, behind walls, or under concrete slabs may require additional labor and equipment.
Extent of the replacement: Replacing pipes for a single fixture can cost $100 to $350, while repiping an entire home can cost $15,000 or more.
Geographical location: Material prices and labor costs can vary significantly depending on your area, with cities and coastal states generally having higher costs.
Labor costs: Plumbers rates range from $75 to $150 per hour, with emergency services costing more.
Permit & inspection fees: Permits can range from $70 to $400 and may or may not be included in the contractor's bid. If you're unsure about the presence of polybutylene pipes, a visual plumbing inspection costs $100 to $200.
Additional repairs: Water damage from leaks may require ceiling, drywall, or floor repairs, adding to overall costs.
Seasonal factors: Emergency replacements during extreme weather conditions may incur higher costs due to increased demand.
Additional repair costs
When you replace pipes, especially those hidden behind walls, under floors, or above ceilings, some level of demolition is usually required to access them. Once the plumbing work is complete, you'll need to fix the damage to these areas. The following table details common repairs after pipe replacement.
| Repair type | Average cost per square foot* |
|---|---|
| Drywall cost | $1.50 – $3.50 |
| Insulation cost | $1.00 – $4.50 |
| Ceiling drywall cost | $2 – $4 |
| Flooring cost | $4 – $15 |
| Baseboard cost | $6 – $9 |
| Crown molding cost | $7 – $16 |
| Painting cost | $1 – $3 |
| Mold remediation cost | $15 – $30 |
*Including labor and materials
FAQs about polybutylene pipes
Who replaces polybutylene pipes?
Licensed plumbers are the professionals who replace polybutylene pipes. It's essential to hire a qualified plumber with experience in repiping homes to ensure they do the job correctly and safely.
How do I know if I have polybutylene pipes?
You can identify polybutylene pipes by looking for flexible, plastic pipes that are typically gray but can also be silver, blue, white, or black. They are usually 1/2 to 1 inch in diameter and may have "PB2110" stamped on them. Check near water heaters, in basements, or protruding from walls.
Do I have to replace my polybutylene pipes?
While not legally required, replacing polybutylene pipes is strongly recommended. These pipes are prone to degradation and failure, especially when exposed to chlorine in water supplies. The risk of leaks and potential water damage makes replacement a wise investment.
Does homeowners insurance cover polybutylene pipe replacement?
Most insurance companies do not cover polybutylene pipe replacement because they consider them a known defect and the homeowner's responsibility. While some policies may cover damage from sudden pipe failures, they typically exclude replacing the pipes. Over the past decade, many insurers have notified clients that failure to replace polybutylene pipes could lead to policy termination.
How long does it take to replace polybutylene pipes?
How long it takes to replace polybutylene pipes depends on your home's size, the number of bathrooms, and the pipe accessibility. Smaller homes can be completed in a few days, while larger homes may take over a week. Add additional time for repairs to walls, ceilings, or other affected areas.
Getting estimates from plumbing companies
When hiring a plumber near you for polybutylene pipe replacement, follow these suggestions:
Get multiple quotes from licensed plumbers to compare prices and services.
Check if the contractor has experience specifically in polybutylene pipe replacement.
Ask for a detailed breakdown of costs, including materials, labor, and any additional fees.
Inquire about the type of replacement pipes recommended and the pros and cons.
Request a complete plumbing system inspection to confirm they include all polybutylene pipes in the estimate.
Ask about the project timeline and any potential disruptions to your daily routine.
Inquire about warranties on both materials and labor.
Ask about any necessary permits and whether they're included in the estimate.
Inquire about potential additional costs, such as repairing walls or tearing up floors for access.
Consider getting a whole house re-pipe estimate, as it may be more cost-effective in the long run.
Questions to ask your plumber
Ask these important questions to confirm a plumber's familiarity with polybutylene pipes and their ability to replace them:
How much experience do you have with polybutylene pipe replacement?
What material do you recommend for replacing the polybutylene pipes?
Can you provide a detailed cost estimate for the entire replacement project?
How long will the replacement process take, and will we need to relocate during the work?
Will you need to cut into walls, floors, or ceilings to access the pipes? If so, how will the repair costs be handled?
Will you be replacing all polybutylene pipes, including those for outdoor fixtures and appliances?
How will you ensure the connections and fittings are properly installed to prevent future leaks?
Do you offer any warranties or guarantees on your work?
Are you licensed and insured for this type of plumbing work?
Can you help with obtaining any necessary permits for the replacement project?
How will you protect our belongings and minimize dust during the replacement process?
Using our proprietary cost database, in-depth research, and collaboration with industry experts, we deliver accurate, up-to-date pricing and insights you can trust, every time.