Most homeowners don’t give much thought to the meter can. It’s that gray box on the side of the house where the utility lines meet your electrical system. Out of sight, out of mind—until something goes wrong.
One hidden problem that shows up more than people realize is corrosion inside the meter can. And when it does, it’s not just a minor issue. It can actually create serious safety risks.
What Causes Corrosion in a Meter Can?
Moisture is the biggest culprit. Rain, humidity, and even condensation on chilly mornings can find their way into the can. Once water comes into contact with metal, rust and other forms of corrosion begin. Over time, the damage spreads.
I’ve opened up cans that looked fine from the outside, but inside? Terminals eaten away, metal pitted, even greenish powder coating the wires. Dirt and insects don’t help either. Add in years of neglect, and corrosion grows like weeds in a cracked sidewalk.
Why Is Corrosion So Dangerous?
On the surface, corrosion looks ugly but harmless—just some rust, right? The real problem is how it affects connections. When the metal that’s supposed to carry electricity weakens, resistance builds up. Resistance means heat, and heat leads to melting or even fire.
Loose or corroded connections also spark. Tiny arcs of electricity can jump, which not only damages equipment but puts anyone nearby at risk. A homeowner once told me they heard faint popping near their meter. Turned out the corrosion inside was so advanced that the wires were arcing every time the dryer kicked on. That’s a recipe for disaster.
Impact on Appliances and the Whole System
It’s not just a fire hazard. Corroded connections in the meter can cause inconsistent voltage. That translates into flickering lights, tripped breakers, or appliances running hot. Sensitive electronics like TVs and computers take the brunt of it.
Think of it like clogged arteries in the human body. The heart tries harder, but the blood flow isn’t right. Eventually, something gives. The same thing happens in your electrical system when corrosion chokes off a clean flow of power.
Signs You Might Have Corrosion Trouble
The tricky part is that you can’t always see what’s happening inside a sealed meter.
Still, there are warning signs:
- Lights dimming when large appliances start.
- Strange buzzing or popping sounds near the meter.
- Warm spots or discoloration on the outside of the can.
- Higher-than-normal electric bills with no clear reason.
If you notice any of these, it’s time to get the can inspected.
Why Scheduling an Inspection Matters
Waiting until the system fails is a gamble. By the time corrosion has eaten through terminals, you’re facing more than just a repair bill—you’re looking at potential damage inside your home.
That’s why it makes sense to have Dependaworthy electricians check the meter can during routine service. We don’t just glance at the outside; we dig in and see what’s happening where it matters. Dependable + Trustworthy = DEPENDAWORTHY!
What We Do During Repair or Replacement
If we find corrosion, the approach depends on how advanced it is. Light surface rust? We can clean and reseal. Terminals beginning to weaken? We replace them before they fail. If the whole can is compromised, we swap it out with a new one that meets today’s safety standards.
And we don’t leave you waiting. Our Dependaworthy repair trucks are ready to roll, stocked with the parts and tools to handle the job on the first visit. Fixed right or you don’t pay—that’s the guarantee we live by.
FAQ
Can I check my own meter can for corrosion?
Not safely. The can houses live connections from the utility, and opening it yourself is dangerous. Always call a licensed electrician.
How long does a meter can last before corrosion shows up?
It varies. In humid areas, damage can appear in under ten years. In drier climates, you might get decades. Regular inspections are the only way to know.
Does corrosion always mean replacement?
No. Early stages can often be cleaned and repaired. Severe corrosion, though, usually calls for replacement to protect your home.
Can corrosion affect my power bill?
Yes. Poor connections force the system to work harder, which can raise energy use and cost.
Don’t Ignore the Box on the Wall
The meter can might not be the flashiest piece of equipment on your home, but it’s one of the most important. Corrosion inside it doesn’t just stay put—it spreads problems throughout your electrical system.
If you’ve seen the signs, or if it’s been years since anyone checked it, don’t wait. Call the Dependaworthy team. Dependaworthy electricians know what to look for, how to fix it, and how to keep your home safe. Because sometimes, what you can’t see is what can hurt you the most.
