PEX Vs. Copper Pipes: Which Should You Choose For Repiping?

When ensuring the heart of your home functions flawlessly, a few decisions are as crucial as selecting the right piping material for repiping. The age-old battle between the steadfast reputation of copper and the modern ingenuity of PEX pipes has left homeowners grappling with a pivotal choice: PEX vs. copper pipes. Fear not, for in this article, we start to unravel the mysteries and intricacies of PEX vs copper piping.

We’ll navigate through durability, cost-effectiveness, installation intricacies, and more, equipping you with the comprehensive knowledge needed to make an informed decision tailored to your home’s unique needs. Get ready to discover the nuances that will transform your repiping venture into a resounding success.

PEX vs. Copper Piping: What Are Key Differences?

Understanding the differences between PEX (cross-linked polyethylene) and copper pipes is crucial before deciding which type to use when repiping your home. PEX pipes are made from a flexible plastic material, making them easier to install and less prone to freezing.

On the other hand, copper piping has a long history in plumbing due to their durability and resistance to corrosion. Knowing these disparities is vital as it can impact your plumbing system’s overall performance and longevity.

What Are PEX Pipes?

PEX piping and copper piping differ in several aspects, making them choices for plumbing. PEX, a modern solution, is a flexible plastic material that revolutionized piping due to its adaptability and ease of installation. Its sustainability shines as it consumes fewer production resources than copper’s mining and refining. PEX’s resistance to corrosion extends its lifespan and ensures water quality. Introduced more recently, it rapidly gained popularity for home repiping due to its affordability and leak-resistant design.

What Are Copper Pipes?

Copper and PEX piping diverge in key aspects, influencing their suitability for plumbing projects. Copper pipes, with a longstanding history, boast durability and can endure for over half a century. However, their higher upfront cost stems from material expenses and intricate installation. While copper’s reliability is unquestionable, its vulnerability to corrosion is influenced by water composition.

The Pros and Cons of PEX vs. Copper Piping

The Lifespan of PEX vs. Copper Piping

When contemplating a repiping project, durability is paramount. Copper pipes outshine PEX pipes in terms of longevity. On average, copper pipes impressively endure for 50 to 70 years, whereas PEX pipes have an expected lifespan of 30 to 50 years. It’s challenging to surpass copper’s resilience. It’s worth noting that the life expectancy of PEX pipes can be curtailed by extremely hot water (180 degrees Fahrenheit or higher) or water with high chlorine levels.

However, copper’s life can be compromised by highly acidic water. Under typical conditions, where homes are connected to municipal water systems, copper generally outlasts PEX by about two decades. If you rely on a private well, having your water tested before repiping your water supply system is wise. Local County Extension Offices can assess well water for acidity and chlorine content, helping you decide which material best suits your repiping needs.

Cost of PEX vs. Copper Piping

In recent years, the cost of copper pipes started to increase, making the average of a repiping project increase in turn. This uptick in copper repiping costs is attributed to the growing recycling value of copper, driving the prices of copper-based products higher. Comparatively, PEX pipes have maintained their affordability. If you’re contemplating a repiping project, it’s essential to recognize that installing copper water pipes can translate to 58 percent to 68 percent higher expenses than opting for PEX. 

As an illustration, consider replacing old pipes with new copper ones in an average 1,500-square-foot home with two bathrooms. The price tag could range from $8,000 to $10,000 for copper pipes, whereas PEX offers a more budget-friendly alternative, ranging from $4,000 to $6,000.

Why Choose PEX Over Copper?

PEX piping offers several advantages over traditional plumbing materials, including increased flexibility for easier installation and superior freeze resistance for peace of mind.

PEX requires fewer connections.

Understanding the benefits of PEX (cross-linked polyethylene) piping concerning its connection requirements can significantly impact your project’s efficiency and outcome. Unlike copper, which demands precise cuts and elbow fittings at every corner, PEX offers a more streamlined approach. 

Its flexibility allows for continuous runs from a water distribution panel to various fixtures, eliminating the need for excessive connections and reducing installation labor. This ease of installation saves time and contributes to minimizing the chances of leaks due to fewer connection points.

In a repiping venture, particularly in remodeling projects, PEX’s flexibility shines. It can be effortlessly maneuvered through finished walls without cutting into drywall. This is a significant advantage compared to copper, where installing new pipes in a finished home demands the removal of drywall to facilitate connections.

PEX offers a central shutoff.

Navigating a repiping endeavor involves making decisions that optimize convenience and efficiency. Amidst these considerations, PEX (cross-linked polyethylene) piping’s unique feature of a central shutoff presents noteworthy benefits. Unlike traditional setups where individual shut-off valves for fixtures like tubs, sinks, and showers might be tucked away, PEX brings a game-changing shift.

PEX’s centralized approach entails connecting every pipe to a water-distribution manifold near the house’s water main entry. The beauty lies in the simplicity of it all – each pipe boasts its shutoff valve right on the manifold. The manifold, thoughtfully labeled for easy identification (think “Bathtub” or “Laundry Room Sink”), empowers you to control the water supply to any fixture effortlessly.

This innovation significantly streamlines maintenance, repairs, and even routine usage. You no longer have to search for concealed valves or deal with access panels held by screws. PEX’s central shutoff puts control at your fingertips, making the repiping journey more efficient and less of a chore.

Copper is more likely to freeze and break.

One of the notable drawbacks of copper piping lies in their vulnerability to cracking when subjected to freezing water that expands within them. This fragility contrasts the flexibility exhibited by PEX (cross-linked polyethylene) pipes, which can expand if the water inside freezes, rendering them more resilient against freeze-related breakage.

However, it’s worth noting that modern plumbing practices in new house construction largely mitigate the risk of copper pipes freezing and breaking, thanks to enhanced insulation measures. The challenge arises more frequently in older homes needing more insulation. If you reside in a colder region or have experienced water pipe freezing, opting for PEX when it’s time for a repiping endeavor is a wise choice.

freezing, opting for PEX when it’s time for a repiping endeavor is a wise choice.

Easier Maintenance with PEX

One of the standout advantages of PEX pipes lies in their ease of maintenance. Their flexibility and seamless design make PEX pipes generally have fewer joints and seams than copper pipes. This reduced number of connection points reduces the risk of leaks over time. Maintenance tasks become more straightforward due to the decreased likelihood of issues arising from potential weak spots. PEX’s smooth interior surface also inhibits mineral buildup, further contributing to its low-maintenance nature.

Why Choose Copper Over PEX?

Copper pipes are renowned for their exceptional durability and natural resistance to corrosion, ensuring long-lasting performance and clean, safe drinking water.

PEX Cannot Be Used Outside

Extending your plumbing system outdoors might seem tempting, but it’s essential to recognize the limitations of PEX (cross-linked polyethylene) piping in this context. PEX, while a versatile and efficient option for indoor plumbing, falls short when exposed to the harsh impact of ultraviolet (UV) rays. 

These rays can break down the molecular structure that binds PEX pipes, rendering them brittle and prone to rupture over time. So, while PEX excels indoors, it’s crucial to avoid its use outdoors, where UV exposure from sunlight and other sources could compromise its integrity. 

Copper is less likely to be contaminated.

Amidst the array of considerations in a repiping endeavor, water quality assurance remains paramount. Copper’s intrinsic ability to resist contamination stands as a noteworthy advantage. Through its natural antimicrobial properties, copper pipes actively inhibit the growth of bacteria, ensuring that the water flowing through them remains cleaner and safer. This becomes especially significant in repiping scenarios, where a transition to copper pipes can enhance the overall purity of the water supply. 

Rodents can chew through PEX pipes.

Protecting your home’s plumbing is an essential aspect of repiping considerations, and it’s crucial to be aware of potential vulnerabilities, such as rodent interference with PEX (cross-linked polyethylene) pipes. Unlike rigid metal pipes, PEX pipes might be vulnerable to rodent attacks due to their pliable nature. It’s important to note that rodents are more likely to target these pipes when they hear the sound of water flowing through them. To ensure the integrity of your repiping investment, take preventive measures to safeguard against rodent intrusions. 

Copper Is more susceptible to corrosion due to water chemistry.

Corrosion vulnerability is a pivotal factor to weigh in the context of repiping. Copper pipes can be more prone to corrosion due to varying water chemistry, impacting the pipes and the water quality they convey. This susceptibility to corrosion underscores the significance of selecting the right piping material to ensure long-lasting water delivery systems. Conversely, PEX tubing introduces concerns about water contamination arising from the tube material and potential chemical interactions in the vicinity. 

Health and Environmental Impact of PEX vs. Copper Pipes For Repiping

When starting on a repiping project, it’s essential to consider the immediate functionality of the pipes but also their broader health and environmental implications. Comparing the environmental impact of PEX (cross-linked polyethylene) and copper pipes can shed light on the sustainable choices available.

Below we address common PX vs. copper health concerns.

Water Quality and Safety

Both PEX and copper pipes have qualities that impact water quality. With their natural antimicrobial properties, copper pipes can help maintain cleaner water by discouraging bacterial growth. However, certain water conditions can lead to corrosion in copper pipes, potentially affecting water taste and quality. On the other hand, PEX pipes do not corrode, ensuring consistent water quality throughout their lifespan.

Environmental Footprint

Regarding the environment, PEX pipes have a relatively lower environmental footprint during production than the energy-intensive process of mining and refining copper. Additionally, PEX requires fewer resources and generates less waste during manufacturing, contributing to a reduced carbon footprint.

Recyclability

Recycling is a significant consideration for sustainable materials. While PEX and copper pipes are recyclable, copper’s recycling process requires less energy than PEX. Copper pipes can be melted down and reused without losing quality, making them a preferred choice for those prioritizing recyclability.

PEX vs. Copper Pipes: Installation

Understanding how to replumb a house, the installation process, and associated costs is crucial for water repipe. Repiping involves replacing old, deteriorating pipes with new ones to ensure a reliable plumbing system. The cost of repiping can vary depending on factors like the size of your home, the number of fixtures, and the chosen piping material.

PEX Pipes

Installing PEX pipes has gained popularity due to its relatively straightforward process. PEX pipes, made from flexible plastic, offer easier installation than rigid copper pipes. The flexibility of PEX allows for simple bending and maneuvering through tight spaces, reducing the need for excessive fittings and connections. This can lead to faster installation times and lower labor costs. PEX is especially advantageous for retrofitting projects since it can be snaked through finished walls without extensive demolition.

Copper Repipe 

While copper pipes have been used for plumbing for decades, their installation process is more labor-intensive than PEX. Copper pipes require precise cuts and soldering to create connections, increasing installation time and costs. However, copper is known for its durability and longevity, making it a preferred choice for some homeowners despite the extra effort required during installation.

PEX vs. Copper California: Which is Best for Installing in California?

In California, where regulations and climate play a role in piping decisions, PEX and copper both have their merits. PEX pipes are favored for their flexibility, making them suitable for earthquake-prone areas. They’re also resistant to freezing, a benefit in colder regions of the state. However, copper pipes are preferred for outdoor and fire-prone applications due to its fire-resistant properties. The decision between PEX and copper repiping in California depends on your home’s location, water quality, and budget considerations.

Enquire About Repiping your House With Repipe1

Understanding the advantages and disadvantages of different piping options is crucial as you navigate the important decision of repiping your home. Repipe1 guides you through this process, ensuring you make an informed choice that aligns with your needs, budget, and preferences.

Our professional repipe specialists are ready to help you determine the most suitable piping solution for your home. Whether you’re considering PEX or copper, we’re here to ensure your repiping project succeeds. Contact Repipe1 today to start on a seamless and efficient repiping with PEX journey.