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Electrical wiring or panel upgrade pros in Chelmsford

Sean A. Davis Electrician
.
5.00(
18
)
Approved Pro
Sean A. Davis Electrician
.
5.00(
18
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
16 years of experience

We have the experience and we are committed to providing quality workmanship and superior customer service on all our applications. We at Sean A. Davis Electrician strive to maintain our reputation as a high quality, very service oriented company with our main focus being customer satisfaction.

"Solved everything very simply, patiently checked everything and resolved issues efficiently. Strongly recommend Sean for electrical repairs."

Meera S on July 2023

We have the experience and we are committed to providing quality workmanship and superior customer service on all our applications. We at Sean A. Davis Electrician strive to maintain our reputation as a high quality, very service oriented company with our main focus being customer satisfaction.

"Solved everything very simply, patiently checked everything and resolved issues efficiently. Strongly recommend Sean for electrical repairs."

Meera S on July 2023


Avatar for JML Electric, Inc.
JML Electric, Inc.
101C Foundry Street
4.92(
24
)
Approved Pro
JML Electric, Inc.
101C Foundry Street
4.92(
24
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
22 years of experience

A lot of local electricians only offer limited electrical work. JML Electric, Inc. provides a full range of electrical services. We have acquired the ability to quickly and accurately diagnose any electrical problem that needs to be corrected. When you have a situation that requires a professional electrician, you'll feel confident in calling on us to assist you! Call us today!

"John did a great job with my outdoor Juicebox 48 installation with basement subpanel. I am really happy with it. He had very competitive pricing against 3 other electricians and had the the charger installed within one week of me signing. He showed up on time for the install, was professional and patched up all the drywall he could after the job. He also did a load balance calculation for our building (we live in a two family) to check capacity and make sure we would pass inspection. Getting the inspection itself completed through the City of Cambridge did take a LOT longer than I thought it would and I had to bug him for a few weeks to sort out the paperwork, but once it was scheduled and the inspector arrived it was quick. Overall my experience was great and would definitely work with him again."

Cindy J on March 2023

A lot of local electricians only offer limited electrical work. JML Electric, Inc. provides a full range of electrical services. We have acquired the ability to quickly and accurately diagnose any electrical problem that needs to be corrected. When you have a situation that requires a professional electrician, you'll feel confident in calling on us to assist you! Call us today!

"John did a great job with my outdoor Juicebox 48 installation with basement subpanel. I am really happy with it. He had very competitive pricing against 3 other electricians and had the the charger installed within one week of me signing. He showed up on time for the install, was professional and patched up all the drywall he could after the job. He also did a load balance calculation for our building (we live in a two family) to check capacity and make sure we would pass inspection. Getting the inspection itself completed through the City of Cambridge did take a LOT longer than I thought it would and I had to bug him for a few weeks to sort out the paperwork, but once it was scheduled and the inspector arrived it was quick. Overall my experience was great and would definitely work with him again."

Cindy J on March 2023


Avatar for PW DiMasi Electric
PW DiMasi Electric
PO Box 541059
4.90(
5
)
Approved Pro
PW DiMasi Electric
PO Box 541059
4.90(
5
)
Approved Pro
Customers say: Terrific value
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
33 years of experience

PW DiMasi Electric offers fast, friendly and courteous service. We use only the best products and are always eager to answer your questions and concerns. We have built our reputation on our commitment to providing quality service, which has earned us an impressive reputation with many valuable customers. We take pride in delivering value through top quality, dependable work with excellent price and reliable, honest service.

"Prompt, Professional & High Quality work at at fair price. Highly Recommend."

Charles S on May 2024

PW DiMasi Electric offers fast, friendly and courteous service. We use only the best products and are always eager to answer your questions and concerns. We have built our reputation on our commitment to providing quality service, which has earned us an impressive reputation with many valuable customers. We take pride in delivering value through top quality, dependable work with excellent price and reliable, honest service.

"Prompt, Professional & High Quality work at at fair price. Highly Recommend."

Charles S on May 2024


Timothy Santos Electric, LLC
0 Woodhill Rd
5.00(
7
)
Approved Pro
Timothy Santos Electric, LLC
0 Woodhill Rd
5.00(
7
)
Approved Pro
Customers say: Quick response
5 years of experience
Free onsite estimate

Timothy Santos Electric, LLC is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

"Tim came to my house on an emergency call due to a total loss of lights. Our outside electrical line was frayed - letting moisture into the circuit box. He discovered it needed repair right away and made plans to come the following morning. I had texted him later in the day to say the power had gone off again. He came back to the house that night because he was worried about a fire and did the WHOLE job - it took about 3 hours with a crew. Exemplary service - I highly recommend."

Donna S on January 2023

Timothy Santos Electric, LLC is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

"Tim came to my house on an emergency call due to a total loss of lights. Our outside electrical line was frayed - letting moisture into the circuit box. He discovered it needed repair right away and made plans to come the following morning. I had texted him later in the day to say the power had gone off again. He came back to the house that night because he was worried about a fire and did the WHOLE job - it took about 3 hours with a crew. Exemplary service - I highly recommend."

Donna S on January 2023


Matthew Decicco
27 Crestwood Road
5.00(
3
)
Approved Pro
Matthew Decicco
27 Crestwood Road
5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
14 years of experience

Matthew Decicco, is a well established electrician in Reading, offering the finest in craftsmanship and quality. When it comes to professionalism and customer service, we are unmatched! For the best of the best, call Matthew Decicco Electric, for your next project!

"Very responsive and did everything that I asked for."

Joey C on April 2021

Matthew Decicco, is a well established electrician in Reading, offering the finest in craftsmanship and quality. When it comes to professionalism and customer service, we are unmatched! For the best of the best, call Matthew Decicco Electric, for your next project!

"Very responsive and did everything that I asked for."

Joey C on April 2021


Avatar for Villa Electrical Contracting
Villa Electrical Contracting
43 White Pond Rd
4.89(
9
)
Approved Pro
Villa Electrical Contracting
43 White Pond Rd
4.89(
9
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
21 years of experience

With 20+ years of experience in the electrical industry, we are the experts you need to take care of your home or business. We handle all of your electrical needs with great care. We will treat your home as we would treat our own. Give Villa Electrical Contracting a call today, we look forward to working with you. Also check out our website at Villaelectrical.com

"Excellent service. Prompt, professional and competent."

Sarah Q on March 2023

With 20+ years of experience in the electrical industry, we are the experts you need to take care of your home or business. We handle all of your electrical needs with great care. We will treat your home as we would treat our own. Give Villa Electrical Contracting a call today, we look forward to working with you. Also check out our website at Villaelectrical.com

"Excellent service. Prompt, professional and competent."

Sarah Q on March 2023


KSG Electric
12 Prospect Court
4.88(
8
)
Approved Pro
KSG Electric
12 Prospect Court
4.88(
8
)
Approved Pro
Customers say: Quality work
6 years of experience

KSG Electric is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

"Had him install 3 Ring Cameras and fix some switches. Reached out via phone. Showed up to do estimate. Was quick to give estimate. Let me know when he was available. Did a great job, cleaned up. Was good about making sure cats didn't get out. Will hire again. "

Melissa W on April 2025

KSG Electric is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

"Had him install 3 Ring Cameras and fix some switches. Reached out via phone. Showed up to do estimate. Was quick to give estimate. Let me know when he was available. Did a great job, cleaned up. Was good about making sure cats didn't get out. Will hire again. "

Melissa W on April 2025


Dever Electric
26 Scotch Dam Rd
4.97(
51
)
Approved Pro
Dever Electric
26 Scotch Dam Rd
4.97(
51
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
17 years of experience

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of electrical services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

"Fast and thorough"

Bradford H on April 2025

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of electrical services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

"Fast and thorough"

Bradford H on April 2025


Alexandre Oliveira Electric
102 Groton Road
5.00(
3
)
Approved Pro
Alexandre Oliveira Electric
102 Groton Road
5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
15 years of experience

Alexandre Oliveira Electric is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 12 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"Did GREAT JOB"

Kate W on May 2020

Alexandre Oliveira Electric is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 12 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"Did GREAT JOB"

Kate W on May 2020


Avatar for David Araujo - Electrician Services
David Araujo - Electrician Services
68 Park Street Apt#2
5.00(
4
)
Approved Pro
David Araujo - Electrician Services
68 Park Street Apt#2
5.00(
4
)
Approved Pro
1 years of experience
Free onsite estimate

I provide a dependable and high quality work throughout Massachusetts. As a licensed electrician, i bring hands on experience and a strong commitment to safety, reliability, and customer satisfaction. Whether you needd a residential Wiring/RE-wiring, Panel/Service upgrade and/or expansion, lighting installations, or electrical troubleshooting, you can count on professional results and honest service. I take pride in doing clean, code-compliant work - on time and on budget!

"I hired David to install an EV charger in my garage and he did an excellent job advising me on the right approach to use, neatly installing the charger, patching up a wall, so I couldn’t even tell he needed to open up for access, and left the site in perfect condition. After such a + first experience, I hired David to come back and install an electric door opener at my house. Again, he didn’t disappoint with his fast and clean work, great follow up, and professional interactions. Highly recommend"

Peter M on May 2025

I provide a dependable and high quality work throughout Massachusetts. As a licensed electrician, i bring hands on experience and a strong commitment to safety, reliability, and customer satisfaction. Whether you needd a residential Wiring/RE-wiring, Panel/Service upgrade and/or expansion, lighting installations, or electrical troubleshooting, you can count on professional results and honest service. I take pride in doing clean, code-compliant work - on time and on budget!

"I hired David to install an EV charger in my garage and he did an excellent job advising me on the right approach to use, neatly installing the charger, patching up a wall, so I couldn’t even tell he needed to open up for access, and left the site in perfect condition. After such a + first experience, I hired David to come back and install an electric door opener at my house. Again, he didn’t disappoint with his fast and clean work, great follow up, and professional interactions. Highly recommend"

Peter M on May 2025

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Electrical wiring or panel upgrades FAQs

While homeowners with substantial electrical knowledge might technically attempt a subpanel installation, most local building departments require permits and inspections for this type of work. Professional electricians understand local code requirements, can obtain necessary permits, and ensure the installation meets safety standards. Given the significant safety risks associated with incorrect electrical work, most homeowners benefit from hiring a licensed professional.

A standard subpanel installation takes an average of four to eight hours. This timeframe may extend if you're installing multiple subpanels or adding specialized circuits like those for spa equipment. Factors such as difficult access points, complex wiring paths, or permit processing times can also affect the overall project duration.

Adding a subpanel doesn't directly reduce electricity consumption or lower your utility bills. A subpanel simply redistributes power from your main panel to additional circuits. However, organizing your electrical system more efficiently may help prevent overloaded circuits and the associated problems. For actual cost savings, consider energy-efficient appliances and lighting instead.

The appropriate subpanel size depends on your specific electrical requirements. Consider the number and type of devices you'll be powering, potential future needs, and the capacity of your main electrical panel. An electrician can perform a load calculation to determine the most suitable amperage rating for your situation, ensuring you have adequate power without overpaying for unnecessary capacity.

A main electrical panel connects directly to your utility's power supply and contains your home's primary service disconnect. It distributes electricity throughout your entire house. A subpanel, by contrast, receives power from the main panel and redistributes it to a specific area of your home. Think of the main panel as the primary distribution point and the subpanel as a secondary branch that extends your electrical system's reach.

While electrical upgrades aren't as immediately visible as kitchen or bathroom renovations, they can contribute to your home's functionality and safety. Prospective buyers often appreciate updated electrical systems that can accommodate modern power demands. A properly installed subpanel that provides additional capacity for workshops, home offices, or future expansions could be an attractive feature for certain buyers, though the direct impact on home value varies by market.

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