At J.S. Brown & Co., we understand that what goes on behind the walls is just as important as the pretty surfaces and fixtures that you can see.  As such, quality rough plumbing materials and installation are critical to any kitchen or bathroom renovation. When we work with our plumber to specify plumbing supply lines for our clients’ remodeling projects, the conversation often revolves around copper versus PEX (both Type A and Type B). 

Each option has unique benefits that might make it a better choice for your home and project, depending on specific needs, budget, and long-term goals. 

Below, we’ll break down the basics of these three piping materials to help you understand why we might select one over the others for your remodeling project.

Copper Supply Lines

What Is It?

Copper piping has been a go-to plumbing material for decades. It is a metallic pipe that conducts heat and has natural corrosion-resistance properties. Plumbers have trusted copper for its reliability and longevity.

Pros of Copper

  1. Longevity: Copper pipes can last for 50 years or more with proper installation and care.
  2. Durability: Copper is less likely to break down from UV exposure, so it’s great for certain outdoor or exposed applications (where code allows and climate factors are considered).
  3. Recyclability: Copper is a more environmentally friendly choice in terms of disposal and recycling.
  4. Safety: Copper does not release harmful chemicals into the water.
  5. Health: Copper has natural antimicrobial properties
  6. Tradition: Generations of plumbers have considered Copper to be the material of choice.  It has stood the test of time, while other materials have come and gone- i.e. galvanized steel, polybutylene, CPVC.  

Cons of Copper

  1. Cost: Copper is generally more expensive than PEX, both in terms of materials and labor.  As a commodity the price fluctuates daily.
  2. Skill: Soldering, fitting joints, and precise planning skills are required for running copper pipe. Less experienced plumbers or homeowners might shy away from using it.
  3. Potential for Corrosion: While copper is corrosion-resistant, corrosive water with high acidity can gradually wear on copper pipes.
  4. Temperature Sensitivity: Copper can freeze in cold conditions if pipes are not insulated properly. Although it’s more resistant than some materials, freezing temperatures can still cause major problems if not taken into account.

When We Might Recommend Copper:

  • If you have a larger budget for higher-end materials.
  • When you want something tried-and-true that has a long track record of dependable performance.
  • In specific areas where exposure to light is a concern (for example, under sinks in decorative settings) and you want a durable, code-approved material.
  • If your home has all copper piping already, we typically will install copper for any new work. 

PEX Type A

What Is It?

PEX Type A is a cross-linked polyethylene pipe known for its flexibility and ease of installation. It’s manufactured through a particular “Engel” method of cross-linking that gives the pipe notable elasticity and resilience.

Pros of PEX Type A

  1. Flexibility: Type A PEX is the most flexible option, making it easier to bend around corners, requiring fewer fittings. Fewer fittings mean less friction loss of water pressure. 
  2. Expansion Potential: This flexibility can better withstand cold temperatures and reduce the risk of bursting due to freezing.
  3. Fewer Fittings: Because of its flexibility, you need fewer elbows and couplings, often leading to a quicker and more cost-efficient installation.
  4. Less Susceptible to Corrosion: PEX does not corrode, even in harsh water conditions.
  5. Noise: PEX A is quieter than copper. 
  6. Condensation: It has less tendency to “sweat” in humid environments than copper. 

Cons of PEX Type A

  1. Cost vs. Type B: It can be more expensive than PEX Type B in material costs.
  2. UV Sensitivity: All PEX is sensitive to UV light and cannot be stored or used in places with extended exposure to sunlight.
  3. Specialized Installation: PEX Type A often requires specialized expansion tools, which can slightly limit who can install it if they don’t have the right equipment.

When We Might Recommend PEX Type A:

  • In remodels where we expect numerous bends and want to minimize fittings, or where pipe freezing is a risk (Central Ohio winters).
  • If the budget can accommodate the slightly higher cost compared to Type B, in exchange for more flexibility, easier installation, and better freeze resistance.
  • In remodels where PEX is already installed. 

PEX Type B

What Is It?

PEX Type B is also a cross-linked polyethylene pipe, created through a different process (the “Silane” method). It is widely used thanks to its balance of cost-effectiveness and reliable performance.

Pros of PEX Type B

  1. Cost-Effective: Often less expensive than Type A, making it a popular choice for budget-conscious projects.
  2. Good Performance: It still offers the basic benefits of PEX—resistance to corrosion, quiet water flow, and quick installation.
  3. Widely Available: Because PEX Type B is so common, it is easily sourced and serviced by many plumbers.

Cons of PEX Type B

  1. Less Flexible: It can’t expand as easily as Type A, which might make it slightly more prone to kinking or bursting in extreme cold.
  2. Fittings: You might need more fittings and might need to plan carefully around tight corners.
  3. UV Sensitivity: Just like Type A, it still can’t be exposed long-term to direct sunlight.

We don’t use PEX Type B, but others might recommend it in the following scenarios:

  • In a straightforward installation where extreme flexibility isn’t required and budget is the priority.
  • For areas that aren’t likely to see severe winter stress on the pipes or where pipes can be well insulated.

Which Plumbing Supply Line Is Right for You?

In Central Ohio, winter temperatures can dip below freezing for extended periods. Pipes are at risk of freezing if not protected—this is where the flexibility and freeze resistance of PEX can be a big advantage. That said, copper pipes, when properly installed and insulated, have proven themselves for decades in cold climates.

  • If You Value Tradition and Longevity: Copper offers a time-tested solution (and some homeowners prefer metal pipes for aesthetic or resale value reasons).
  • If You Want the Lowest Costs: PEX Type B may offer a balance of performance and affordability.
  • If You Anticipate Tight Spots or Want Maximum Freeze Protection: PEX Type A might be the best bet due to its remarkable flexibility and higher resilience in cold weather.

Final Thoughts – Making the Right Plumbing Choice

Your choice of plumbing material depends on multiple factors: budget, longevity, freeze protection, and personal preference. Copper, PEX Type A, and PEX Type B each have a place in the right project. (Again, we don’t install PEX B) Our goal is to help you select the most reliable, cost-effective option for your specific remodeling needs.

If you have more questions about which material might work best in your home, feel free to reach out! Our design-build team is here to make sure you have the right systems in place to enjoy a safe, efficient, and beautifully remodeled home in Central Ohio’s changing seasons. Let’s talk about how to make your next renovation worry-free from the inside out.

Interested in learning more about plumbing choices and other remodeling insights? Contact our team or explore the rest of our blog to discover how we can bring your dream home to life—one pipe, fixture, and finish at a time!