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PEX vs. Copper Pipes: What You Need to Know Before Making the Wrong Choice

  • Writer: Wischmeyer's Plumbing Plus
    Wischmeyer's Plumbing Plus
  • Nov 7
  • 6 min read

You're Staring at a Big Decision (And You're Probably Overwhelmed)

Copper Pipes
Image courtesy of Shutterstock

Your plumber just told you it's time to replace your home's plumbing, and now you're facing a choice that feels way more complicated than it should be: PEX or copper pipes?


You've probably never had to think about this before, and suddenly everyone has an opinion. Your neighbor swears by copper because "it's what they used to build things right." Your contractor is pushing PEX because it's cheaper and faster to install. Your real estate agent friend mentioned something about resale value. And you're sitting there wondering how a decision about pipes became so stressful.


Here's the truth: both materials have real advantages, and both come with trade-offs you need to understand. The wrong choice could cost you thousands more than you planned, cause problems when you try to sell your house, or even create issues with building permits. But the right choice? It'll give you reliable plumbing for decades and peace of mind that you made a smart investment in your home.


Let's break this down so you can make the decision that's right for your situation, your budget, and your home here in Rochester.


What Exactly Is PEX (And Why Is Everyone Talking About It)?

PEX stands for cross-linked polyethylene, which sounds fancy but is basically flexible plastic tubing that's been engineered to handle water pressure and temperature changes. It's been quietly taking over the plumbing world, and there are good reasons why.


Why You Might Love PEX:

  • It costs way less than copper - we're talking about saving thousands on your project

  • It's lightweight and flexible, so it can snake around corners and through tight spaces without a bunch of connections

  • It won't corrode or build up mineral deposits like metal pipes can

  • Here in Rochester, it has a huge advantage: it can flex if water freezes inside instead of bursting like rigid pipes


Why You Might Have Concerns About PEX:

  • You can't use it anywhere that gets direct sunlight (UV rays break it down)

  • It's relatively new compared to copper, so while testing shows it should last 30-50 years, we don't have generations of real-world proof like we do with copper

  • Some people worry about plastic pipes and what that means for their drinking water


The flexibility issue is huge for Rochester winters. We've all heard horror stories about burst pipes during those brutal cold snaps, and PEX's ability to expand without breaking can save you from a plumbing disaster at 3 AM in January.


Copper Pipes: The Choice Your Grandparents Would Make (And Maybe You Should Too)

Copper has been the gold standard for home plumbing for over 70 years. There's a reason it's lasted this long as the go-to choice for quality homes.


Why Copper Still Has Its Fans:

  • It's incredibly durable - we're talking 50 to 70 years, sometimes longer

  • It doesn't add anything to your drinking water (no plastics, no chemicals)

  • It naturally resists bacteria growth

  • Buyers and inspectors still see it as the "premium" option

  • It's been around long enough that we know exactly how it performs over time


Why Copper Might Not Be Right for You:

  • It's expensive - sometimes 3 to 4 times more than PEX for materials alone

  • Installation requires soldering, which means higher labor costs and longer job times

  • It can corrode if your water is acidic

  • It's more likely to burst if it freezes (not ideal for Rochester winters)


If you're planning to stay in your home for decades and want the peace of mind that comes with time-tested materials, copper's track record is hard to argue with.


The Real-World Costs (Because Your Budget Matters)

Let's talk numbers, because this decision probably comes down to what you can afford and what makes financial sense for your situation.


PEX Pipes Costs:

  • Materials: About $0.50-$2.00 per linear foot

  • Full home repipe (typical 2,000 sq ft house): $4,000-$8,000

  • Installation is usually faster, so lower labor costs

Copper Pipes Costs:

  • Materials: About $2.00-$5.00+ per linear foot (and copper prices fluctuate)

  • Same house with copper: $8,000-$15,000 or more

  • Higher labor costs due to soldering time and skill required


That's a significant difference, especially if you're dealing with other home repairs or renovations at the same time. But here's what you need to consider: that upfront savings with PEX might be offset by copper's longer lifespan and potential resale benefits.


What This Means When You Try to Sell Your House

You might not be thinking about selling right now, but your plumbing choice could affect your home's appeal to future buyers.


Copper's Resale Story: Many buyers and home inspectors still view copper as the premium choice. When they see copper plumbing, they think "quality" and "longevity." It can give buyers confidence that they won't be dealing with plumbing problems anytime soon.


PEX's Growing Acceptance: PEX is becoming more standard, especially in newer homes. Younger buyers who've grown up with it are less concerned, and professional installation goes a long way toward buyer acceptance. But some buyers still see it as "the cheaper option" rather than "the smart option."


The reality is that a properly installed PEX system shouldn't hurt your resale value, especially if you keep your installation receipts and warranty information. But copper still carries more prestige in the minds of many buyers.


Making Sure You Don't Run Into Code Problems

This is where things can get tricky, and it's why you need someone who knows Rochester's requirements.


Copper: Approved everywhere, no questions asked. Inspectors know it, code officials expect it, and you'll never have compliance issues.


PEX: Also approved in New York State under residential code Section P2906, but it has to meet specific ASTM standards and be installed correctly. This isn't a DIY project - you need a licensed plumber who knows the local requirements.


Both materials are certified safe for drinking water, though PEX can leach small amounts of chemicals in the first few weeks (flushing the lines takes care of this). The bigger concern is making sure your installation passes inspection the first time.


So Which One Should You Choose?

Here's the honest answer: it depends on your specific situation.


PEX might be right for you if:

  • You're working with a tight budget and need to save money upfront

  • You're concerned about freeze damage (smart thinking for Rochester)

  • You need flexibility for a tricky installation

  • You're planning to stay in your home long enough to enjoy the cost savings


Copper might be better if:

  • You're planning to sell within the next few years and want maximum buyer appeal

  • You want the longest possible lifespan from your investment

  • Budget isn't your primary concern

  • You prefer tried-and-true materials with a long track record


Questions You're Probably Still Wondering About:

"Is PEX really as good as copper?" For most applications, yes. PEX performs well and has some advantages over copper, especially in cold climates. The main trade-off is longevity - copper has a longer proven track record.


"Will PEX hurt my home's value?" Not if it's professionally installed and meets code. While some buyers still prefer copper, PEX won't automatically lower your home's value. Quality installation matters more than the material itself.


"How long will each one actually last in my house?" Copper typically lasts 50-70+ years. PEX is rated for 30-50 years. In Rochester's climate, PEX's freeze resistance might actually help it last longer than copper in some situations.


"Can I install PEX myself to save money?" Please don't. Building codes are specific about installation requirements, and a failed inspection will cost you more than hiring a professional in the first place. Plus, improper installation can void warranties and create liability issues.


The Bottom Line: You Don't Have to Figure This Out Alone

Choosing between PEX and copper doesn't have to keep you up at night. Both are good options when installed properly, and the "right" choice depends on your budget, your plans for your home, and your priorities.


What matters most is working with someone who understands Rochester's building codes, has experience with both materials, and will give you honest advice based on your specific situation - not just push whatever's easier for them to install.


We've been helping Rochester homeowners make these decisions for over 35 years. We've seen what works, what doesn't, and what causes problems down the road. When you're ready to move forward, we'll walk you through your options and help you choose the solution that makes the most sense for your home and your budget.


Ready to stop worrying about pipes and get this project started? Give us a call. We'll help you make the right choice and get it installed correctly the first time.

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