Verified record
A recent customer in Chelmsford had Julio out for a big list — basement lighting, ethernet wiring through the house, new outlets, panel service and an outdoor light post — and wrote that he handled all of it in one visit, with no upselling. Julio A Lopez holds an active Massachusetts electrician licence, number 10489-EL-B, on the state registry. The company says it has 22 years in business and lists a service area that includes Lowell, Chelmsford, Dracut, Billerica and Methuen. A recent customer said Julio gave a quick estimate, recommended a ceiling fan and did the install quickly. A recent customer wrote that the local electrical inspector, checking his work, remarked that he does good work. A Reddit commenter on r/waltham recommended Julio Lopez by name and phone number. A 2026 customer said Julio ran the electrical for their basement finishing. A 2025 customer said he wired their garage with new underground 100A service. A 2025 customer facing an unexpected emergency said their electricity was back up before the end of the day and that he sent updates throughout the day. A 2025 reviewer said he wired a heat pump and replaced an overhead light fixture. A 2024 customer said Julio and his team upgraded outlets and closet lights and integrated smoke alarms in a house built in the 1920s, for the price he estimated at the outset. A 2023 customer said he helped get their EV charger installed. A 2022 customer said Julio came over the same day when the garage outlets went out, found a tripped GFCI they did not know they had, and did not charge them anything.
“Julio Lopez is exceptional. 781-910-3805”
Julio did a great job. He gave a quick estimate, recommended a perfect ceiling fan and did the work quickly and professionally. He is very pleasant and the whole experience was great. I will have him back again. Highly recommend.
Julio did a terrific job. His attention to detail and knowledge made us feel at ease with the large electrical repairs/upgrades that he was doing. Would definitely recommend him for Any future jobs and intend to Use his company again!
Quality work but also communicative and reliable!
We had Julio out to our home in Chelmsford for a pretty big list: basement lighting, ethernet wiring through the house, new outlets, panel service, and an outdoor light post. He handled all of it in one visit without any issues. What stood out was how straightforward he was, no upselling, just honest work and a fair explanation of what needed doing. Our house feels noticeably more functional now, especially having hardwired internet upstairs.
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.
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1 change recorded — last scanned Oct 29, 2026.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Julio A Lopez electrician. Use it to sanity-check bids, then get the real number in writing.
Standard receptacle swaps — a new dedicated circuit is a bigger job ($350–$750).
Flush mounts, pendants, chandeliers — hung on existing boxes.
Estimated range
$530 – $1,100
Typical electrical project around $820
Languages
Languages
400A panel upgrades and full knob-and-tube rewires5.0
Solar designed around a peaky Victorian roof5.0
State-verified electrician license3.2
Solved electrical problems others gave up on3.2