How to Tell If Your Plumbing Is Up to Code (and Why It Matters)

When you turn on a faucet or flush a toilet, you probably don’t think about building codes, but they play a significant role in how your plumbing works. Plumbing codes are designed to ensure your system is safe, efficient, and able to handle your household’s needs. If your plumbing isn’t up to code, you could face costly repairs, legal headaches, or even health hazards.

Here’s how to tell if your plumbing meets current standards and why it’s worth checking.

Signs Your Plumbing May Not Be Up to Code

Old or Outdated Materials

If your home still has galvanized steel pipes, lead supply lines, or polybutylene piping, it’s likely not up to current safety standards. These materials can corrode, leak, or contaminate water.

Improper Venting

Plumbing vents let sewer gases escape and help drains flow smoothly. If you notice slow drainage, gurgling sounds, or persistent odors, your venting may not meet code requirements.

Lack of Backflow Prevention

Modern codes require backflow prevention devices to keep contaminated water from flowing into clean water lines. Without them, your drinking water could be at risk.

Wrong Pipe Sizes

Using pipes that are too small for their purpose can lead to poor water pressure and slow drains. Codes specify minimum diameters for different plumbing applications.

DIY Modifications Without Permits

If past owners made changes without permits or inspections, there’s a chance those updates don’t meet current standards.

Why Being Up to Code Matters

• Safety – Code-compliant plumbing prevents contamination, leaks, and structural damage.
• Efficiency – Properly sized and installed systems deliver better water flow and drainage.
• Resale Value – Homebuyers and inspectors will flag noncompliant plumbing during the sale process.
• Legal Compliance – In many areas, unpermitted or noncompliant work can lead to fines or required replacements.
• Lower Repair Costs – Catching issues early prevents major failures down the road.

How to Check Your Plumbing

The most reliable way to determine if your system is up to code is to have a licensed plumber perform a full inspection. They can identify outdated materials, incorrect installations, and missing safety features, and recommend the best upgrades to bring your system up to standard.

The Bottom Line

Plumbing codes aren’t just red tape: they protect your home, your health, and your investment. Knowing where you stand can save you money, prevent emergencies, and give you peace of mind. For more tips and suggestions, contact Elk Grove Village Sewer & Plumbing for up to date codes that can help your home.