Julio A. Lopez Electrician
Call 781-910-3805

Services / Residential & Commercial

Residential & Commercial Electrical Services

I handle residential and commercial electrical work across Lowell and the Merrimack Valley, from small repairs to full rewiring jobs. I’ve been licensed in Massachusetts since 2004 (License #10489-B), and I’m rated 5.0 stars on Google, so you’re getting one person who shows up, does the work properly, and stands behind it.

Have a question first? Call or contact us. Whichever is easier.

Do I Need a Residential or Commercial Electrician?

It depends on where the work’s happening, not how complicated it is.

Residential

House, Condo, or Apartment

If it’s your home, that’s residential work. A few examples of what’s covered:

Electrical panel upgrades

Whole house rewiring

EV charger Installation

Lighting installation

View Residential Services

Commercial

Shop, Office, or Commercial Space

If it’s a shop, office, restaurant, or small commercial space, that’s commercial work. A few examples:

Commercial panel upgrades

Office and retail lighting installation

Commercial EV charger Installation

Emergency and exit lighting installation

View Commercial Services

Same person, same care, different building

Why Lowell, MA Relies on Julio A. Lopez Electrician

I’ve been licensed in Massachusetts since 2004, and I still do the work myself. There’s no dispatcher, no rotating crew, no one you’ve never met showing up at your door. You call me, I show up, and I’m the one doing the job start to finish.

That matters more than people expect. Electrical work in Massachusetts is regulated for good reason. Hiring someone with a valid license means the job gets inspected properly and done to code. I keep mine current, and I’m glad to show it before I start any job.

I cover Lowell, Dracut, Tyngsborough, Westford, Billerica, Methuen, Chelmsford, Andover, Wilmington, Bedford, Carlisle, and Tewksbury. Lowell’s my home base, and a lot of the housing stock here is old enough that I see the same issues over and over: knob-and-tube wiring, undersized panels, wiring that was fine decades ago and isn’t anymore. You can read more about my background on the About page.

Sounds like your house or building?

Call 781-910-3805 Use our Contact Form

How I Work?

Call or send a message

Tell me what’s going on, and I’ll ask a few quick questions to get a feel for the job

I take a look

For anything beyond a quick fix over the phone, I’ll come out, look at what’s actually going on, and give you a clear estimate before starting

Do the work

I explain what I’m doing as I go, keep the space clean, and don’t leave until it’s done right.

You know what to expect

No surprise costs, no vanishing after the invoice. If something comes up, you’ll hear from me directly

I’m at 5.0 stars across Google reviews, and you’re welcome to read through them yourself. You can also find me on Facebook if that’s an easier way to get a feel for the work.

Google Reviews
Review from Google
Julio was very responsive to my calls, easy to work with. When the local electrical inspector came to inspect his work, the inspector remarked to me this guy does good work.. Highly recommend him.
Review from Google
Julio is one of the best contractors we’ve ever worked with! He always shows up when he says he will and does quality work. Therefore, we are extremely happy with all the work he did running the electrical for our basement finishing. He is also very professional! We truly enjoyed working with Julio and will use him for all our future electrical needs. Our dog also loved Julio as he often spoiled her with treats, pets, and toys. His kindness knows no bounds.
Review from Google
Julio was on time and very nice. He did a excellent job at a reasonable price. If we ever need a electrician again we will be calling Julio A Lopez.
Review from Google
Julio diagnosed and fixed a short circuit at our place. He is very professional and punctual.

Common Electrical Issues in Lowell’s Older Homes and Buildings.

If you own a home in Lowell, chances are your electrical system has seen a few decades. I work across the city, from the triple-deckers in the Acre to the colonials in Pawtucketville, and I run into the same problems over and over.

Knob-and-tube wiring is still hiding in a lot of these walls. It was fine when it was installed, but it wasn’t designed for today’s appliances and electronics. Another one I see often is undersized panels. A 60-amp or 100-amp panel can’t keep up with modern kitchens, home offices, and air conditioning. That’s a safety issue, not just an inconvenience. Outlets that are loose, ungrounded, or just plain worn out are another common call.

These are the kind of things I look for in an estimate walkthrough. You don’t need to know the technical side. That’s my job. You just need to know your house is safe and up to code. I’ve handled panel upgrades and rewiring jobs across Lowell, and I’ll tell you honestly what needs to be done now and what can wait.



Electrical panel replacement in the basement of an older Massachusetts home

LICENSE #10489-B

MA Electrician – Licensed since 2004

Rated 5.0+ on Google

Lowell Electrical Permit & Codes

Here in Lowell, the Division of Development Services handles permits. I handle the entire process for you. Most electrical work, from a new circuit to a panel upgrade, needs a permit. Fees are based on the job’s value.

Minor work permits start around $50, and I’ll confirm the exact fee for your job as part of your estimate. I pull the permit, post it on site, and schedule the required inspection myself. You won’t need to step foot in city hall or decipher code books. I follow the Massachusetts Electrical Code (NFPA 70 with state amendments) to the letter. If the city needs plans or a follow-up visit, I manage it. My license, insurance, and years of local experience mean your project gets green-tagged without the frustration.

Frequently Asked Questions

Do I need a permit for electrical work in Lowell, MA?

Yes, most electrical work in Lowell requires a permit. For larger jobs like panel upgrades and rewiring, I pull the permit from Lowell’s Division of Development Services before I start any work. For smaller repairs, a permit may not be needed, but I’ll let you know during the estimate what’s required.

How much does a panel upgrade cost in Lowell?

Panel upgrade costs vary depending on the size of the panel and the condition of your existing wiring. A standard 200-amp upgrade in a Lowell single-family home is different from one in an older triple-decker that needs additional work. I provide a clear, no-obligation estimate after seeing your specific setup.

Do you offer emergency electrical services in the Merrimack Valley?

I handle urgent calls from homeowners and businesses in Lowell and surrounding towns. If you have a breaker that keeps tripping, a burning smell from an outlet, or a partial power loss, call 781-910-3805. I’ll let you know how soon I can get to you.

Can you replace knob-and-tube wiring in an older Lowell home?

Yes, I’ve replaced knob-and-tube wiring in many Lowell homes, especially in neighborhoods like Belvidere and the Highlands where it’s still common. This is a bigger job that involves opening walls and running new, grounded wiring throughout the house. I’ll walk you through the process and timeline during the estimate.

What EV charger brands do you install for residential and commercial properties?

I install most major EV charger brands, including ChargePoint, Tesla Wall Connector, and JuiceBox. I handle the full installation, including running the dedicated circuit from your panel and mounting and configuring the unit. For commercial spaces, I can also set up multiple charging stations with proper load management.

Schedule Your Lowell Electrical Service Today

Pick up the phone and call us or send us a message. I’ll get back to you shortly