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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

Find Electricians in Grantham

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 SUNFLOWER LLC
SUNFLOWER LLC
4.9(
15
)
Electric Vehicle Charging Station Installation - For Business - Materials Not ProvidedElectric Vehicle Charging Station Installation - For Business - Materials Provided by ConsumerElectric Vehicle Charging Station Installation - 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%
11 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
Recommended by100%of homeowners
Avatar for Accent Tel USA
Accent Tel USA
4.9(
12
)
Telephone 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%
3 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.

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
1 neighbors recently requested a quote
Recommended by100%of homeowners
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Electrical questions, answered by experts

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.

With AC wiring, which is the kind most likely you’ll find at home, the black wire is “hot,” and the white is “neutral.” The bare or green wire is considered the safety ground wire. If you encounter DC wiring, it’s relatively easy to tell positive or negative wires apart. red wires are used to indicate positive voltage and black wires indicate negative voltage.

A wire stripping tool is the easiest way to strip sheathing or plastic insulation from electrical wires. A self-adjusting wire stripper cuts and removes the sheathing without damaging the core wire.

While washers and dryers do not require a GFCI (ground fault circuit interrupter) outlet to function properly, electrical codes often mandate their use for safety. The National Electrical Code (NEC) requires GFCI protection for all outlets within six feet of a water source. This means a washer and dryer must be plugged into a GFCI outlet if they are installed in locations like a laundry room, utility room, garage, or basement. In other areas without a nearby water source, there is no specific requirement, but using a GFCI outlet is still recommended for extra peace of mind. It is always best to consult your local codes and regulations to ensure compliance and safety.

Whole-house generators can run continuously for extended periods, even for weeks at a time (around 400 to 500 hours), as long as they have a sufficient fuel supply. However, this type of extensive use will increase wear and tear and can shorten the generator's overall lifespan. During long periods of operation, it's important to check and refill the engine oil as needed, potentially as frequently as daily depending on the model. If your generator uses a fuel tank, ensure it is kept full to prevent unexpected shutdowns.

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.