Copper Pipes: Risks from Lead Solder and How Modern Codes Prevent It
Copper piping has been a go-to material for plumbing for decades because of its durability and resistance to corrosion. However, older copper pipe installations—especially those done before 1986—may have been joined using lead-based solder. In Billings and Laurel homes built in that era, this can still pose a risk to your drinking water quality. At Brown Plumbing & Heating, we help homeowners understand these risks and make sure their plumbing meets today’s strict safety standards.
The Problem with Lead Solder in Copper Pipes
Lead is toxic even in small amounts, and over time, it can leach into water passing through soldered pipe joints. Long-term exposure can cause serious health problems, especially for children and pregnant women. The danger is greatest in plumbing systems where water sits in pipes for long periods—such as overnight—before being used.
How to Tell If Your Pipes Might Have Lead Solder
Age of the Plumbing – If your home was built or remodeled before 1986, there’s a higher chance lead solder was used.
Gray or Dull Joint Lines – Older solder may appear dull gray and scratch soft with a key or coin.
Water Testing – The only way to be certain is to have your water tested for lead content.
How Modern Plumbing Codes Address the Issue
Today, plumbing codes in Montana and nationwide require lead-free solder and fittings for all potable water systems. The term “lead-free” means solder must contain less than 0.2% lead, and brass or bronze fittings must have less than 0.25% lead content. These standards significantly reduce the risk of lead contamination.
At Brown Plumbing & Heating, all of our copper piping installations meet or exceed current code requirements, ensuring your water is safe to drink.
What to Do If You Suspect Lead Solder
Test Your Water – A certified lab can tell you exactly how much, if any, lead is present.
Flush the System – Let water run for 30–60 seconds before using it for drinking or cooking.
Upgrade the Plumbing – Replace soldered joints with lead-free alternatives during any remodel or pipe repair.
Use Certified Filters – If needed, install a point-of-use filter certified to remove lead.
Protecting Your Home and Family
If your plumbing is older, it may be time for an inspection. Even if the pipes themselves are in good shape, replacing lead-soldered joints and outdated fittings can give you peace of mind and improve your home’s water safety.
Contact Brown Plumbing & Heating today at https://brownplbg.com for an inspection or consultation. We’ll help you identify risks and bring your system up to modern safety standards.
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