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TRUSTED BY GRANTHAM, NH HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon97
    Verified electrical services reviews

Top-Rated Electricians in Grantham - Updated Nov 2026

J.L.D. Electric
4.5(
40
)
Electrical Wiring or Panel Upgrade

Serving Grantham, NH and surrounding areas

Approved

In business since 2010

Free estimates

Credit card accepted

"Highly recommend! Very professional, friendly, prompt! Great job, great guys. Always called and showed up as promised. Jim came to see the scope of work and discuss timing just a couple of days after we spoke on the phone. The job was done as scheduled and done perfectly. They were knowledgeable and efficient - replacing some old knob & tube wiring in a 150+ year old house; and adding some new outlets/switches where I wanted them. I will call them again when I need any electrical work done!"
Response time8 hrs
Recommended by94%of homeowners
Avatar for W B Lightning Rods
W B Lightning Rods
4.6(
372
)
Lightning Protection - Install or Repair

Serving Grantham, NH and surrounding areas

Approved

In business since 2001

Free estimates

Warranties offered

"Used this company previously and again it was a pleasure from beginning to end. I would give him 10 Stars if I could. Referred William to a close friend of mine and she was just as pleased. We both sleep better during our bad Florida thunderstorms. A friend of mine lost their home due to lightning. They got out just in time couldn’t save anything but their lives barely. I urge all to install lightning rods."
lightning protection
 Residential LPS
lightning protection
 Residential LPS
lightning protection

+79

Response time1 day
143 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for SUNFLOWER LLC
SUNFLOWER LLC
4.9(
15
)
Electric Vehicle Charging Station Installation - Materials Not ProvidedElectric Vehicle Charging Station Installation - For Business - Materials Provided by ConsumerElectric Vehicle Charging Station Installation - For Business - Materials Not Provided+1 more

Serving Grantham, NH and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

SunFlower was founded by Vincenzo and Connor—two energy professionals driven by a shared mission to create a cleaner, more sustainable future. What began as a commitment to reducing carbon footprints has grown into a full-service solar company focused on empowering homeowners and businesses with smart, affordable energy solutions.\n\nWe deliver high-quality solar installations designed to lower electricity costs, boost energy independence, and make clean energy accessible to all. With expert craftsmanship and personalized service, we help our customers harness the power of the sun for long-term savings and real environmental impact.\n\nAt SunFlower, we don’t just install solar panels—we help you take control of your energy future.

Before Solar Installation
Pre-Installation Roof 1
A Clean Roof Awaiting Some Clean Energy
Solar Panel Racking in Progress
Pre-Installation Roof 2

+55

Response time9 hrs
Response rate100%
6 neighbors recently requested a quote
Avatar for Progressive Consulting
Progressive Consulting
4.6(
16
)
Telephone Jacks and Wiring - Install - For BusinessTelephone System - Install or UpgradeTelephone System - Install or Upgrade - For Business+2 more

Serving Grantham, NH and surrounding areas

Approved

In business since 2000

Emergency services offered

Offers commercial services

"I have been searching for electrician to come out and fix our voice, Network, and camera lines for our small business. I searched for weeks and wasn't so lucky. I came across homeadvisor.com and saw Progressive Consulting. I gave him a call, 10 minutes later her arrived at my business. I explained what I wanted and he already knew what it would take. He gave me a quote 30 minutes later. Very affordable price for the work he provides. The next day at 9:30 am he came out and completed the job just as estimated nothing less nothing more. I would HIGHLY recommend this company to anyone looking for electrical work. Quality and affordable couldn't ask for anything else."
Response time20 mins
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Accent Tel USA
Accent Tel USA
4.9(
12
)
Telephone System - Repair - For BusinessTelephone System - Install or Upgrade - For Business

Serving Grantham, NH and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

Our Company provides a one-stop solution for all of your voice, internet, and telecom needs. Leveraging the Cloud we provide your Office state-of-the-art telephones for little or no upfront cost striving to keep your monthly costs the same. Sound too good to be true? Give us a call and we will show you how.

Response time3 hrs
Response rate99%
7 neighbors recently requested a quote
Richard Hebert Master Electrician
5.0(
1
)
Ceiling Fan - InstallElectric Vehicle Charging Station Installation - For Business - Materials Not ProvidedElectric Vehicle Charging Station Installation - For Business - Materials Provided by Consumer+11 more

Serving Grantham, NH and surrounding areas

Approved

In business since 2020

Credit card accepted

Offers commercial services

We can take on a wide range of residential and commercial electrical projects to include full installation for additions and remodels as well as wiring/panel upgrades, and a variety of other projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

2 neighbors recently requested a quote
Avatar for Digital City Technology, Inc.
Digital City Technology, Inc.
5.0(
6
)
Telephone Jacks and Wiring - Install - For Business

Serving Grantham, NH and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"They took the lead on my network wiring job. I was able to walk away and take care of other IT duties while trusting that the job would be done to specifications with no shortcuts."
Unifi AC Pro
Before and After
Network mess before
After
WiFi 2

+30

Response time1 day
3 neighbors recently requested a quote
Recommended by100%of homeowners
...
Showing 1-10 of 62
Electrical FAQs, answered by experts

There are several reasons why an electrical outlet would suddenly stop working, including:

  • Broken parts in the outlet

  • Outlet burnout

  • Circuit breaker tripped

  • Damaged circuit breaker

  • GFCI outlet tripped

  • Damaged or loose wires

  • Failed connectors

  • Appliance failure

Generators are safe to use as long as they are installed and operated correctly according to the manufacturer's recommendations. The most critical safety tips are to never use a portable or fuel-powered generator inside an enclosed space due to the risk of lethal carbon monoxide poisoning; always operate it outdoors where fumes can dissipate away from your home. Additionally, never attempt to connect a generator to your home’s electrical panel yourself—hire a professional to ensure the setup meets safety standards. Finally, avoid overloading the generator by not connecting more appliances than it is rated for, as this can damage your equipment or cause a fire.

If your outlet is testing fine but keeps tripping, that’s a sign your GFCI outlet is working, but there’s a problem somewhere else. Try plugging in different devices and see if the outlet keeps tripping. If it’s not the appliance that’s causing the issue, it could be a problem in your wiring. Faulty wiring can be a source of electrical fires and other serious problems. We recommend arranging an inspection by an electrician if an outlet appears to be working but keeps tripping.

Timers work by using an internal switch to turn power on or off to the cord plugged into it. Just the same way that a light switch turns lights on and off, the timer throws the switch at the programmed times.

You should always turn off a breaker whenever electrical work is being done. This step can prevent electrical shock and injury. Also, if a breaker is repeatedly tripping, it can mean there is an electrical overload, and it should be shut off. You should contact an electrician to figure out the cause. Make sure to review how to turn off your circuit breaker safely if you do it yourself, and follow safety precautions to avoid severe injuries.

The Grantham, NH homeowners’ guide to electrical services

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