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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon25
    Verified generator installs reviews

Find Generator install pros in Londonderry

Current Solutions Electrical, LLC

5.00(
4
)
Approved Pro

Current Solutions Electrical, LLC

5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2 years of experience

With over 6 years of experience CURRENT SOLUTIONS ELECTRICAL is your trusted choice for all of your electrical needs. We take pride in our work and can assure your satisfaction with your project. Give us a call today for a free estimate!

"Replaced 2 deck lights and 2 bathroom fans."

Barbara T on March 2024

With over 6 years of experience CURRENT SOLUTIONS ELECTRICAL is your trusted choice for all of your electrical needs. We take pride in our work and can assure your satisfaction with your project. Give us a call today for a free estimate!

"Replaced 2 deck lights and 2 bathroom fans."

Barbara T on March 2024


Avatar for B and H Electric, LLC

B and H Electric, LLC

5.00(
3
)
Approved Pro

B and H Electric, LLC

5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2 years of experience

You can depend on us to provide a high quality service at a fair and honest price. We understand that the future of our business depends upon our reputation and that is why customer service is by far our highest priority. If you are looking for a professional you can trust, please call today to schedule a no-obligation estimate!

"Very friendly and took that time to make sure everything was done just right."

Paula M on December 2023

You can depend on us to provide a high quality service at a fair and honest price. We understand that the future of our business depends upon our reputation and that is why customer service is by far our highest priority. If you are looking for a professional you can trust, please call today to schedule a no-obligation estimate!

"Very friendly and took that time to make sure everything was done just right."

Paula M on December 2023


Link Established, LLC

New on AngiNew on Angi
Approved Pro

Link Established, LLC

New on AngiNew on Angi
Approved Pro
13 years of experience
Free onsite estimate

We specialize in all aspect of computer repair, networking, and telecommunication. With over 16 years of business we are proud to take care of your needs. We specialize in residential and commercial IT services.

We specialize in all aspect of computer repair, networking, and telecommunication. With over 16 years of business we are proud to take care of your needs. We specialize in residential and commercial IT services.


Avatar for JBJ Systems, Inc.

JBJ Systems, Inc.

New on AngiNew on Angi
Approved Pro

JBJ Systems, Inc.

New on AngiNew on Angi
Approved Pro
4 years of experience

JBJ SYSTEMS provides innovative security systems, including video surveillance and access control, as well as advanced structured cabling and network solutions. Our expert technicians bring together experience and knowledge with trusted solutions, delivering results on time and on budget.

JBJ SYSTEMS provides innovative security systems, including video surveillance and access control, as well as advanced structured cabling and network solutions. Our expert technicians bring together experience and knowledge with trusted solutions, delivering results on time and on budget.


Avatar for Progressive Consulting

Progressive Consulting

4.95(
14
)
Approved Pro

Progressive Consulting

4.95(
14
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
25 years of experience

Progressive Consulting provides voice and data communication solutions to businesses and homes with as few as 2 lines to over 200 lines from infrastructure to application with all the peripheral equipment needed to comprise a total solution. We provide Voice, Data, and Video Surveillance Systems, Equipment, Service, and Installation. Whether you need a custom solution or an "out of the box" system, we can bring you from concept to fruition Our technicians have over 35 years of experience in the communication field and project management and execution experience from infrastructure cabling and outside plant to application implementation across all business sizes from Small Business to Multi-National corporations. We certified on many brands and models of equipment and work on all major manufacturer commercial telephone systems and networking equipment. Service is our specialty and quality is our standard.

"Very friendly and professional; i have an old system he got me back up and running!"

Terri K on April 2020

Progressive Consulting provides voice and data communication solutions to businesses and homes with as few as 2 lines to over 200 lines from infrastructure to application with all the peripheral equipment needed to comprise a total solution. We provide Voice, Data, and Video Surveillance Systems, Equipment, Service, and Installation. Whether you need a custom solution or an "out of the box" system, we can bring you from concept to fruition Our technicians have over 35 years of experience in the communication field and project management and execution experience from infrastructure cabling and outside plant to application implementation across all business sizes from Small Business to Multi-National corporations. We certified on many brands and models of equipment and work on all major manufacturer commercial telephone systems and networking equipment. Service is our specialty and quality is our standard.

"Very friendly and professional; i have an old system he got me back up and running!"

Terri K on April 2020


Avatar for Digital City Technology, Inc.

Digital City Technology, Inc.

5.00(
5
)
Approved Pro

Digital City Technology, Inc.

5.00(
5
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
13 years of experience

Digital City Technology, Inc. (Digital City) is based in Ashland, MA, supporting greater Boston and New England since 2008. We are a Telecommunications, Network, Low Voltage and Fiber Optic professional service provider. Digital City installs VOIP Phone systems, LAN/WAN, IP Surveillance and Audio/Visual Systems. We specialize in Phone/Internet cutovers, Data Center installations, Network and System design, CAT 5 & 6 and Fiber Optic cabling, Structured Cabling and Wireless Internet implementation. Digital City has participated in Technology Roll-outs for Fortune 500 companies and performed Technology, Network and Wi-Fi deployments, VOIP installs etc. Our main goal is to provide cost-justifiable, top quality IT services designed to meet business, customer and user demands.

"Low voltage work was clean and labeled!"

Shane H on February 2020

Digital City Technology, Inc. (Digital City) is based in Ashland, MA, supporting greater Boston and New England since 2008. We are a Telecommunications, Network, Low Voltage and Fiber Optic professional service provider. Digital City installs VOIP Phone systems, LAN/WAN, IP Surveillance and Audio/Visual Systems. We specialize in Phone/Internet cutovers, Data Center installations, Network and System design, CAT 5 & 6 and Fiber Optic cabling, Structured Cabling and Wireless Internet implementation. Digital City has participated in Technology Roll-outs for Fortune 500 companies and performed Technology, Network and Wi-Fi deployments, VOIP installs etc. Our main goal is to provide cost-justifiable, top quality IT services designed to meet business, customer and user demands.

"Low voltage work was clean and labeled!"

Shane H on February 2020



Avatar for Freedom Electric, LLC

Freedom Electric, LLC

5.00(
3
)
Approved Pro

Freedom Electric, LLC

5.00(
3
)
Approved Pro
Customers say: Quick response
10 local quotes requested
2 years of experience

With more than 8 yrs of experience, Freedom Electric LLC is dedicated to providing our customers with the best quality at a great price. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!

"We love how Tyler always goes above and beyond. Always pointing out and fixing potential problems. Hard to find companies like his. We would definitely recommend Freedom Electric"

Ken B on April 2023

With more than 8 yrs of experience, Freedom Electric LLC is dedicated to providing our customers with the best quality at a great price. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!

"We love how Tyler always goes above and beyond. Always pointing out and fixing potential problems. Hard to find companies like his. We would definitely recommend Freedom Electric"

Ken B on April 2023


Avatar for MW Driscoll Electric, LLC

MW Driscoll Electric, LLC

5.00(
2
)
Approved Pro

MW Driscoll Electric, LLC

5.00(
2
)
Approved Pro
88 local quotes requested
25 years of experience

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


Avatar for Chapman Builders LLC

Chapman Builders LLC

5.00(
19
)
Approved Pro

Chapman Builders LLC

5.00(
19
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
51 local quotes requested

Chapman Builders LLC is a responsive, professional, and honest company that specializes in electrical work. Fully licensed and insured in NH. Some of the main installs I do include 200 amp home service upgrades, led lighting installs, and removing old wiring such as knob and tube. Chapman Builders LLC also does other things such as home rot repairs, remodels, flooring, and much more.

"Excellent work, priced reasonably and most importantly he came on time and when he said he would. I would highly recommend this Electrician."

John M on November 2025

Chapman Builders LLC is a responsive, professional, and honest company that specializes in electrical work. Fully licensed and insured in NH. Some of the main installs I do include 200 amp home service upgrades, led lighting installs, and removing old wiring such as knob and tube. Chapman Builders LLC also does other things such as home rot repairs, remodels, flooring, and much more.

"Excellent work, priced reasonably and most importantly he came on time and when he said he would. I would highly recommend this Electrician."

John M on November 2025

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Generator Install questions, answered by experts

In many cases, you’ll need a permit or basic inspection to install one of these large generators. Since they include significant alterations to your home electrical system and many produce exhaust fumes, local governments often require jumping through a few hoops for general safety purposes. Your installer may be able to help you with these permits.

A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the total wattage of the devices that you’d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.

Costs range from $500 to $2,500, depending on generator type and installation complexity.

To reduce AC startup power for a whole-house generator, install a soft start kit or hard start capacitor, which lowers the initial surge by gradually ramping up the compressor. Using a smart load manager can also help by staggering startup loads, preventing a system overload and future costly repairs.

If you’re deciding between a solar battery versus a generator for the best backup power solution, you can take a few factors into consideration. Solar batteries are quiet while generators can be quite loud. Generators have a lower up-front cost, but they require fuel and ongoing maintenance while solar batteries are more expensive but don’t have many ongoing costs.

The Londonderry, NH homeowners’ guide to generator installs

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

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