Trimming Trees Near Power Lines: Safety Guidelines

How to safely trim trees near power lines in New Jersey?
To trim trees safely near power lines in NJ, always maintain the legal clearance zone, avoid DIY trimming within 10 feet of energized lines, and contact your local utility provider before any work begins.

The safest method is to hire a certified arborist with line-clearance training to ensure compliance with state laws and utility safety standards. Never trim trees yourself near power lines — it’s not only dangerous, it could be fatal.

Why Trimming Trees Near Power Lines Matters

Why Trimming Trees Near Power Lines Matters​

In New Jersey, keeping trees away from power lines isn’t just about appearances — it’s about life and death. A single branch brushing against a high-voltage line can start a fire, knock out electricity to neighborhoods, or worse, electrocute someone on the ground. That’s why the state and utility companies have strict vegetation clearance rules.

If you’re like many homeowners, you may not realize that you’re partially responsible for what grows on your property — especially near the service drop (the line running from the pole to your home). Tree limbs growing too close to these lines are accidents waiting to happen. And I’ve seen firsthand how quick things can go wrong.

The Hidden Dangers: Why It's Never Just a Trim

Here’s what you’re really dealing with when you work near power lines:

  • Electrocution Risk: Electricity can arc, or “jump,” from a power line to your body or tool — even if you’re not touching the wire.

  • Fire Hazards: Dry branches brushing against lines can spark wildfires or house fires, especially in windy conditions.

  • Outages: Overgrown trees cause a large portion of power interruptions during storms.

  • Falling Branches: DIY attempts often result in dropped limbs taking out power lines or damaging nearby homes.

These are not rare freak accidents — they happen every season across New Jersey. Safety isn’t optional. It’s essential.

NJ Utility Line Clearance Rules You Need to Know

If you live in New Jersey and have trees anywhere near power lines, it’s important to know what’s allowed — and what can land you in serious trouble.

The state has clear safety rules when it comes to how close trees can get to utility lines, and these rules aren’t just for power companies — they apply to homeowners too.

Let’s break it down.

What Is a “Clearance Zone”?

The clearance zone is the safe space that must exist between trees and overhead power lines. This zone is there to prevent branches from touching or falling onto wires, which can cause fires, electrocution, or power outages.

In New Jersey, utility companies like PSE&G, JCP&L, and Atlantic City Electric are required to follow state-mandated tree clearance regulations around primary high-voltage distribution lines. These are the lines you usually see strung between utility poles on main roads or between neighborhoods.

Standard clearance distances:

  • 10 feet from power lines carrying up to 50,000 volts

  • 12–15 feet for lines above 50kV

  • Up to 20 feet for transmission lines (these are larger towers, not neighborhood poles)

The actual distance varies depending on:

  • Line voltage

  • Tree species (fast-growing trees need more space)

  • Location (urban vs. rural)

Important Note: These are minimum distances — utilities often trim more to account for regrowth between maintenance cycles.

So Who’s Responsible — You or the Utility?

This is where things can get confusing, but here’s the general rule in New Jersey:

Line TypeWho’s Responsible?Action
Primary lines (utility-owned)Utility companyCall them before trimming or planting
Service drop (your house connection)HomeownerYou may trim it — but only with caution
Tree on private property, far from wiresHomeownerSafe to trim (if beyond 10 ft from wires)
Tree on neighbor’s propertyIt dependsRequires permission or legal guidance

If a tree is growing into the utility’s clearance zone, most companies will handle it themselves — either during their routine vegetation management cycles or in response to a safety concern.

But here’s the thing — you must call them first. Never assume you’re allowed to trim near wires, even if it’s “just a little.”

What About Planting Near Power Lines?

Planting the wrong type of tree too close to a utility line is one of the most common mistakes homeowners make. Even if it looks harmless when it’s small, that tree can grow into a serious hazard within a few years.

Avoid planting these near lines:

  • Silver maple

  • Poplar

  • Willow

  • Tree-of-heaven

  • Mulberry

These species grow fast and have wide, brittle crowns that are prone to storm damage.

Pro Tip: Choose low-growing, utility-friendly trees like:

  • Eastern redbud

  • Dogwood

  • Serviceberry

  • Flowering crabapple

These stay under 20 feet and are safe to plant near utility easements — but always keep a horizontal clearance of 15–20 feet from any pole or wire.

What If It’s Your Neighbor’s Tree?

This gets tricky. In New Jersey, if your neighbor’s tree hangs over your property but grows from their yard, you are usually allowed to trim what crosses the boundary — as long as you don’t damage the health of the tree.

However, if the tree is near power lines, your options are limited:

  • Don’t touch anything within 10 feet of a power line — that’s utility territory.

  • Call the utility company if the branch threatens the line.

  • Talk to your neighbor before trimming, especially if the tree is near the boundary or trunk.

New Jersey follows “self-help” tree trimming laws, but you can still get sued for wrongful pruning or damaging a neighbor’s tree — so be smart.

What Happens if You Break the Rules?

Trimming trees too close to power lines without permission or proper training can result in:

  • Serious injury or death

  • Property damage

  • Utility fines or criminal charges

  • Loss of insurance coverage if something goes wrong

Utility companies and New Jersey regulators take vegetation clearance very seriously — and with good reason. Even small violations can lead to multi-customer outages or public safety emergencies.

Who to Call First: It’s Not Your Tree Guy

If you’re staring at a tree that’s creeping dangerously close to a power line, your first instinct might be to call a local tree service or even grab a ladder and try handling it yourself. Stop right there.

When trees are near overhead power lines, your first call should always be to the utility company, not a tree guy — and definitely not YouTube for DIY advice. In New Jersey, contacting the utility isn’t just smart — it’s often required by law and essential for safety.

Let’s break down what happens when you make the right call.

Why You Should Contact the Utility First

Power lines come with risks that most people don’t fully understand. You can’t always tell if a line is energized, and electricity doesn’t need contact to cause serious injury. It can arc — or “jump” — several feet, especially in humid or wet weather.

By law, only line-clearance certified arborists or utility contractors can perform work within 10 feet of energized conductors. Even professional tree services — like ours — are not allowed to touch anything in that zone unless we have the proper certifications.

Here’s what your local utility company will do when you report a tree near power lines:

Step 1: Determine Who Owns the Line

Not all wires are the same. In most neighborhoods, there are three main types of lines:

Line TypeDescriptionWho Owns It?
Primary distribution lineHigh-voltage line running along the streetUtility company
Service dropWire connecting the pole to your houseHomeowner’s responsibility (in many cases)
Secondary linesShared neighborhood lines with lower voltageUtility company

The utility will first identify if the line in question is theirs or yours. If it’s theirs, they usually take full responsibility for the trimming.

Step 2: Evaluate the Tree's Risk Level

Next, they’ll assess:

  • Is the tree already in contact with the line?

  • Is it growing too close and will pose a future hazard?

  • Is it storm-damaged or leaning toward the wires?

  • Is it on public or private property?

If they determine the tree poses a safety risk to utility infrastructure, they’ll likely send a certified crew to trim or remove the hazardous parts.

Step 3: Decide if a Temporary Power Shut-Off Is Needed

For some pruning or removal jobs — especially involving large trees or difficult access — the utility may temporarily shut off power to the line so that the job can be done safely.

This is critical. Even trained crews can’t work safely near energized high-voltage wires without a planned de-energization. If you try to do this yourself or hire someone without coordination, you’re risking serious injury, lawsuits, or even death.

Step 4: Determine If It Falls Under Their Vegetation Management Program

In New Jersey, utilities run regular vegetation management cycles — usually every 4 to 5 years — where they proactively trim back trees along power lines in targeted zones. If your property falls into one of these areas, you may be entirely covered at no cost.

Even if your tree isn’t in the scheduled cycle, most utilities will respond quickly if you report:

  • A tree physically touching a line

  • A dead or dying tree leaning toward a pole or wire

  • Storm-damaged limbs near overhead cables

In these cases, the utility often sends a crew — or a contractor they hire — to perform the work safely. And again, you won’t be charged if it’s on or affecting their infrastructure.

The Truth About DIY Tree Trimming Near Power Lines

This might sound harsh, but I’ve seen too many homeowners try to “just take a few branches down” and end up calling 911. Tree trimming near live wires is never a DIY job — and in New Jersey, it’s illegal within 10 feet of energized lines unless you’re line-clearance certified.

Why?

  • Basic pruning tools are not insulated

  • Most people underestimate the line’s voltage

  • Wind or shifting weight can pull branches directly onto live wires

  • You might be breaking utility bylaws or risking a lawsuit if damage occurs

You wouldn’t fix a gas leak yourself. Treat tree trimming near power lines the same way.

What Certified Arborists Actually Do

A professional tree service — like ours here at Midstate Tree — follows strict ANSI and OSHA standards when working near utilities. Here’s what we bring to the job:

  • Line-clearance certified crews

  • Insulated tools and aerial equipment

  • Full liability insurance and NJ Tree Care License (NJTC#939369)

  • Utility coordination and permits

  • Hazard assessments and emergency readiness

We’re trained to identify how line voltage and tree growth interact. This means we can prevent not just outages — but injuries or fatalities.

Know Your Trees: Species That Cause Trouble

Some trees grow fast and tall — a bad combo near utility lines. If you have these species on your property, they need regular inspection:

  • Willows

  • Poplars

  • Silver maples

  • Tree of Heaven (Ailanthus)

  • Mulberries

These trees often have brittle limbs, shallow roots, and rapid vertical growth — a perfect storm for line interference.

A good rule of thumb? If a mature tree can grow taller than 25 feet, keep it at least 20 feet away from any power line when planting.

Safe Tree Trimming Best Practices (If You're Allowed)

For trees that are far enough from live wires (10+ feet), safe pruning is still important. Here are a few tips:

  • Inspect regularly, especially after storms or high winds

  • Prune during dormant seasons (late winter is ideal)

  • Use proper methods: crown thinning, deadwood removal, and directional pruning

  • Wear PPE (helmet, gloves, safety goggles)

  • Keep a safe fall zone for limbs

And never prune alone. Even routine pruning can go sideways in seconds.

Emergency? Here's What to Do

If a tree or branch falls onto a power line:

  • Stay far away — assume every line is live

  • Do not touch any tree or wire

  • Call 911 and the utility company immediately

  • Warn your neighbors and keep kids or pets indoors

In Hunterdon and Warren County, our Midstate Tree emergency crew is on call 24/7. We work with utility partners to remove storm-damaged trees safely and fast.

Common Questions, Answered

Can I trim my own tree near power lines?

Not within 10 feet of energized lines. It’s extremely dangerous and usually illegal without proper certification.

 

Your local utility company is responsible for primary lines. For service drops, homeowners may be responsible — but should hire pros.

In many cases, no. If the tree interferes with high-voltage lines, they usually handle it at no cost.

It varies, but most residential jobs range between $500–$2,000 depending on size, height, and location. Call us for a free estimate.

Call the Pros — We’ve Got This

If you’re in Warren or Hunterdon County and you’re worried about trees growing near power lines — don’t wait. One storm can turn a problem into a disaster.

 We’re local
 We’re licensed (NJTC#939369)
 We’re available 24/7
 We know the utility rules inside and out

Contact Midstate Tree today for a free safety evaluation. We’ll inspect your trees, check for utility risks, and work with the power company if needed. We beat any licensed quote by 10%.

Final Thought

Trimming trees near power lines isn’t just landscaping — it’s life-saving work. Don’t risk it. Know the rules, trust the experts, and keep your family and property safe.

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Picture of Michael Blascak (Mike)
Michael Blascak (Mike)

I have been in the tree care industry for 24 years, I have competed internationally in some of the largest tree climbing competitions in the world. I love trees, I am continually learning and growing with the industry. Whether you need a tree removed or Properly pruned or simply want to walk through your property and have me assess what can be done, I will be sure to do my best to help.

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