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Find Electrical wiring or panel upgrade pros in Portsmouth

Avatar for PRECISE ELECTRIC

PRECISE ELECTRIC

4.89(
42
)
Approved Pro

PRECISE ELECTRIC

4.89(
42
)
Approved Pro
Customers say: Quality work
3 years of experience
Free onsite estimate

We take great pride in our experience, expertise, quality and customer service that we provide to meet your needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"James is not reliable, doesn?t show up when he says he will, multiple delays as a result of his inability to show up. Save yourself the trouble and find somebody else. Cost me thousands extra. "

Zach K on September 2025

We take great pride in our experience, expertise, quality and customer service that we provide to meet your needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"James is not reliable, doesn?t show up when he says he will, multiple delays as a result of his inability to show up. Save yourself the trouble and find somebody else. Cost me thousands extra. "

Zach K on September 2025


Avatar for MW Driscoll Electric, LLC

MW Driscoll Electric, LLC

5.00(
2
)
Approved Pro

MW Driscoll Electric, LLC

5.00(
2
)
Approved Pro
25 years of experience
Free onsite estimate

We offer over 30 years of experience in the electrical industry. We take on a wide range of electrical projects to include full installation for additions and remodels as well as wiring and panel upgrades and a variety of other jobs. We're committed to providing a personalized service for each individual project we take on & look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

"Mike was excellent! He put in a ceiling light (where there was no light before), replaced a ceiling light and put in a new outlet. He was efficient, courteous and most importantly did the job well! We will definitely hire him again. "

Ashley C on July 2025

We offer over 30 years of experience in the electrical industry. We take on a wide range of electrical projects to include full installation for additions and remodels as well as wiring and panel upgrades and a variety of other jobs. We're committed to providing a personalized service for each individual project we take on & look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

"Mike was excellent! He put in a ceiling light (where there was no light before), replaced a ceiling light and put in a new outlet. He was efficient, courteous and most importantly did the job well! We will definitely hire him again. "

Ashley C on July 2025


Diamond Electrical Contractors, LLC

4.83(
75
)
Approved Pro

Diamond Electrical Contractors, LLC

4.83(
75
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
10 local quotes requested

We are not currently offering smaller electrical services, including outlets, fixtures, running wire or panels for things that are not in the home like rvs or boats. We only service electrical panel upgrades within the home and the average cost for this service is around 5000$ but cost will go up or vary according to scope of project. At Diamond Electrical Contractors, LLC our training and experience is second to none. For electrical work you can trust, call the professionals at Diamond Electrical Contractors today!

"I am writing to express my sincere appreciation for the outstanding work performed by Diamond Electric during a recent electrical service upgrade at our property. From start to finish, the entire crew demonstrated professionalism, punctuality, and exceptional craftsmanship. They arrived on time, communicated clearly throughout the process, and completed the work efficiently and safely. What stood out most was their attention to detail—even the smallest aspects of the job were handled with care and precision. It’s not often that you come across contractors who combine technical expertise with such a strong commitment to quality and customer satisfaction. I would not hesitate to work with them again, and I highly recommend their services to anyone in need of electrical work."

David R on July 2025

We are not currently offering smaller electrical services, including outlets, fixtures, running wire or panels for things that are not in the home like rvs or boats. We only service electrical panel upgrades within the home and the average cost for this service is around 5000$ but cost will go up or vary according to scope of project. At Diamond Electrical Contractors, LLC our training and experience is second to none. For electrical work you can trust, call the professionals at Diamond Electrical Contractors today!

"I am writing to express my sincere appreciation for the outstanding work performed by Diamond Electric during a recent electrical service upgrade at our property. From start to finish, the entire crew demonstrated professionalism, punctuality, and exceptional craftsmanship. They arrived on time, communicated clearly throughout the process, and completed the work efficiently and safely. What stood out most was their attention to detail—even the smallest aspects of the job were handled with care and precision. It’s not often that you come across contractors who combine technical expertise with such a strong commitment to quality and customer satisfaction. I would not hesitate to work with them again, and I highly recommend their services to anyone in need of electrical work."

David R on July 2025


Avatar for ARETE ELECTRIC

ARETE ELECTRIC

5.00(
18
)
Approved Pro

ARETE ELECTRIC

5.00(
18
)
Approved Pro
Customers say: Quick response
13 years of experience
Free onsite estimate

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

"⭐️⭐️⭐️⭐️⭐️ Arete 's Electrical Company did an excellent job installing mini-splits in my home! The team was professional, efficient, and took the time to explain everything clearly. The installation was clean, and the system works perfectly. I’m very happy with the results and would highly recommend Arete’s to anyone looking for quality electrical work! "

Kerri P on November 2025

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

"⭐️⭐️⭐️⭐️⭐️ Arete 's Electrical Company did an excellent job installing mini-splits in my home! The team was professional, efficient, and took the time to explain everything clearly. The installation was clean, and the system works perfectly. I’m very happy with the results and would highly recommend Arete’s to anyone looking for quality electrical work! "

Kerri P on November 2025


Avatar for PEAK POWER NH LLC

PEAK POWER NH LLC

4.88(
33
)
Approved Pro

PEAK POWER NH LLC

4.88(
33
)
Approved Pro
Customers say: Quick response
25 years of experience
Free onsite estimate

We're dedicated to providing our clients with the very best in installation, service, and repair for your heating and cooling needs. Our company is built on honesty and integrity. We specialize in central A/C and cooling systems as well as heating and furnace systems. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"Adam and his apprentice arrived early. Job involved some investigation to find the problem. Adam explained everything as he went along. While checking out the breaker panel, he recommended I upgrade the breaker panel, soft sell, but explained and showed frayed wires and with my ok, did the upgrade right then. With some work in tandem with his apprentice, they found the original issue that I had called for. House is over 40 years old, I think they worked efficiently to find and fix the problem. Adam came prepared for the work at hand as well as upgrading the breaker panel and two outside outlets. I’m extremely impressed with Peak Power NH. Both guys were very professional and explained everything thoroughly. I will use them again if needed and have already recommended them to a few family members. "

Mike B on November 2025

We're dedicated to providing our clients with the very best in installation, service, and repair for your heating and cooling needs. Our company is built on honesty and integrity. We specialize in central A/C and cooling systems as well as heating and furnace systems. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"Adam and his apprentice arrived early. Job involved some investigation to find the problem. Adam explained everything as he went along. While checking out the breaker panel, he recommended I upgrade the breaker panel, soft sell, but explained and showed frayed wires and with my ok, did the upgrade right then. With some work in tandem with his apprentice, they found the original issue that I had called for. House is over 40 years old, I think they worked efficiently to find and fix the problem. Adam came prepared for the work at hand as well as upgrading the breaker panel and two outside outlets. I’m extremely impressed with Peak Power NH. Both guys were very professional and explained everything thoroughly. I will use them again if needed and have already recommended them to a few family members. "

Mike B on November 2025


Avatar for Heritage Home Service

Heritage Home Service

4.54(
983
)
Approved Pro

Heritage Home Service

4.54(
983
)
Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
32 local quotes requested

Heritage Home Service is a premier home service provider operating in New Hampshire, Massachusetts and Southern Maine. Bringing all the perks that come with having a large team while maintaining a strong focus on family-oriented service. Our namesake is about honoring those who came before us, and most importantly, it is about leaving a legacy of serving people extraordinarily well. For over 37 years in business, we have helped countless families across our community stay comfortable and healthy in their homes, and today we continue to evolve and find new ways to serve you even better.

"Install was done in a timely manner. "

Robert R on September 2025

Heritage Home Service is a premier home service provider operating in New Hampshire, Massachusetts and Southern Maine. Bringing all the perks that come with having a large team while maintaining a strong focus on family-oriented service. Our namesake is about honoring those who came before us, and most importantly, it is about leaving a legacy of serving people extraordinarily well. For over 37 years in business, we have helped countless families across our community stay comfortable and healthy in their homes, and today we continue to evolve and find new ways to serve you even better.

"Install was done in a timely manner. "

Robert R on September 2025


"Very responsive and efficient"

Doug T on October 2023

At Jesse Wright Electrical and Solar, our priories are customer service and quality work. We pride ourselves on building lasting relationships with our clients. Call us for an estimate. We look forward to working with you!

"Very responsive and efficient"

Doug T on October 2023


"Getting scheduled was a little difficult but I can't deduct any stars for that. Clearly Moses Electric is busy because they do quality work and the communication on getting scheduled was fantastic. I had them do four different things; they gave me a fair price and did it quickly and cleanly. They cleaned up after themselves -- no pieces of copper or wire jacketing laying around for the dog to find. I couldn't be happier."

Brian H on May 2025

I provide all of my customers with Prompt professional service. My 20 years of experience in the industry will be able to guide you in the right direction with any project

"Getting scheduled was a little difficult but I can't deduct any stars for that. Clearly Moses Electric is busy because they do quality work and the communication on getting scheduled was fantastic. I had them do four different things; they gave me a fair price and did it quickly and cleanly. They cleaned up after themselves -- no pieces of copper or wire jacketing laying around for the dog to find. I couldn't be happier."

Brian H on May 2025


Avatar for Heritage Home Service

Heritage Home Service

4.18(
422
)
Approved Pro

Heritage Home Service

4.18(
422
)
Approved Pro
Customers say: Super punctual
158 local quotes requested
39 years of experience

We’re Your Local Plumbers, Heating and AC Technicians, and Electricians. Get prompt and professional plumbing, heating, air conditioning, and electrical services. Our quality staff of licensed and local plumbers and electricians have been providing local plumbing, heating, air conditioning, and electric services in the New Hampshire area since our beginnings in 1986. At our heart, Heritage is a family company with a longstanding reputation for providing quality service for a fair price. People tell us that they see our service trucks everywhere in the area, which is true since there’s a good chance that one of our technicians is also your neighbor. This makes it easy for us to be at your home promptly to help you solve your household plumbing, heating, AC, and electrical problems. It also makes it easy for us to do all that we can to maintain our reputation for quality service. One way we continue to improve the quality of our work is through regular training and certification for our great attendants who are behind the scenes making the magic happen. So whether you are struggling with a clogged drain or a noisy furnace, or you need an installation of an appliance, you’ll see the results of our devotion in the service you receive. If you’re experiencing a problem with your plumbing, heating, AC, or electricity at home, then you should give us a call and see what we mean by quality service that’s guaranteed. From clogged drains to AC installation to electrician’s work, we offer a variety of quality services and products at fair prices to NH residents and northern MA residents—guaranteed!

"All I needed was a replacement for a broken, rusted toilet flange that was set in cast iron. The technician was very professional, and the quality of the work was excellent—I could never have done it myself. I gave 4 stars instead of 5 only because of the cost ($650). To be fair, I didn’t get any other estimates, but it did seem a bit expensive for a job that took only one hour."

William C on November 2025

We’re Your Local Plumbers, Heating and AC Technicians, and Electricians. Get prompt and professional plumbing, heating, air conditioning, and electrical services. Our quality staff of licensed and local plumbers and electricians have been providing local plumbing, heating, air conditioning, and electric services in the New Hampshire area since our beginnings in 1986. At our heart, Heritage is a family company with a longstanding reputation for providing quality service for a fair price. People tell us that they see our service trucks everywhere in the area, which is true since there’s a good chance that one of our technicians is also your neighbor. This makes it easy for us to be at your home promptly to help you solve your household plumbing, heating, AC, and electrical problems. It also makes it easy for us to do all that we can to maintain our reputation for quality service. One way we continue to improve the quality of our work is through regular training and certification for our great attendants who are behind the scenes making the magic happen. So whether you are struggling with a clogged drain or a noisy furnace, or you need an installation of an appliance, you’ll see the results of our devotion in the service you receive. If you’re experiencing a problem with your plumbing, heating, AC, or electricity at home, then you should give us a call and see what we mean by quality service that’s guaranteed. From clogged drains to AC installation to electrician’s work, we offer a variety of quality services and products at fair prices to NH residents and northern MA residents—guaranteed!

"All I needed was a replacement for a broken, rusted toilet flange that was set in cast iron. The technician was very professional, and the quality of the work was excellent—I could never have done it myself. I gave 4 stars instead of 5 only because of the cost ($650). To be fair, I didn’t get any other estimates, but it did seem a bit expensive for a job that took only one hour."

William C on November 2025


Avatar for Electrical & Security Solutions, LLC

Electrical & Security Solutions, LLC

5.00(
10
)
Approved Pro

Electrical & Security Solutions, LLC

5.00(
10
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7 years of experience

We are a small local company based out of southern NH for three years running that specializes in old and new construction jobs along with many other services! Such as new electrical panel or replacement, recessed lighting, under cabinet lighting, and also landscaping lighting! We truly value the beauty of our work no matter how big or small of a job. We strive for a clean work environment during the whole job to limit clean up completely.

"Electrical & Security Solutions are the best! I have needed their services more than once to replace lights, a ceiling fan and also to install a new electrical box and breaker for our garbage disposal. Tyler promptly responded every time I called and he and Casey are both friendly, efficient and skillful. Aside from the excellent service, the qualities I appreciate the most is honesty for what work needs to be done and how Tyler is also very budget consciousness."

Valerie G on July 2024

We are a small local company based out of southern NH for three years running that specializes in old and new construction jobs along with many other services! Such as new electrical panel or replacement, recessed lighting, under cabinet lighting, and also landscaping lighting! We truly value the beauty of our work no matter how big or small of a job. We strive for a clean work environment during the whole job to limit clean up completely.

"Electrical & Security Solutions are the best! I have needed their services more than once to replace lights, a ceiling fan and also to install a new electrical box and breaker for our garbage disposal. Tyler promptly responded every time I called and he and Casey are both friendly, efficient and skillful. Aside from the excellent service, the qualities I appreciate the most is honesty for what work needs to be done and how Tyler is also very budget consciousness."

Valerie G on July 2024

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FAQs for electrical wiring or panel upgrade projects in Portsmouth, NH

Electrical wiring can last between 50 and 70 years if properly installed and maintained. However, factors like moisture damage and overloading outlets can shorten this lifespan. To extend your wiring's life, unplug electronics when not in use, avoid overloading outlets, and schedule regular electrical inspections every five to ten years.

If your house was built in the 1960s and hasn't been rewired, it likely needs it. Older homes may have outdated wiring like knob-and-tube, which poses fire risks due to flammable insulation. Rewiring ensures safety and may also require updating your circuit panel, outlets, switches, and fixtures. Contact a local electrician to help with your rewiring needs.

Yes, rewiring your house is worth it, especially if your wiring is outdated. It improves safety by reducing fire risks and can increase your property's value. However, you may not need a full rewire. A home inspector can tell you if a partial rewire will bring your home up to code.

Yes, you can sometimes rewire a house without removing walls. Electricians might access wiring through attics, basements, or crawl spaces, or make small holes to run new wires. However, this isn't always possible, and in some cases, removing sections of walls is necessary to ensure the wiring is installed safely and meets code.

A house should typically be rewired every 25 years to maintain safety. Over time, wiring deteriorates, increasing fire risks. Regular electrical inspections every five to ten years help assess the need for rewiring. Staying proactive with maintenance ensures a safe, efficient electrical system and prevents potential hazards before they become serious issues.

The Portsmouth, NH homeowners’ guide to electrical wiring or panel upgrades

From average costs to expert advice, get all the answers you need to get your job done.