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TRUSTED BY MARLBOROUGH, NH HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon92
    Verified electrical services reviews

Top-Rated Electricians in Marlborough - Updated Nov 2026

Monadnock Electric
4.8(
21
)
Electrical Switches, Outlets & Fixtures - Install or RepairElectric Vehicle Charging Station Installation - Materials Not ProvidedElectrical Wiring or Panel Upgrade+9 more

Serving Marlborough, NH and surrounding areas

Approved

In business since 1977

Free estimates

Emergency services offered

"They came out and did excellent work, installing my portable generator to the house. I would highly recommend them for any job. Very professional."
Response time9 hrs
5 neighbors recently requested a quote
Recommended by100%of homeowners
MJS Electrical Services, LLC
3.6(
38
)
Fixed Generator - InstallElectric Vehicle Charging Station Installation - Materials Not ProvidedElectric Vehicle Charging Station Installation - For Business - Materials Not Provided+3 more

Serving Marlborough, NH and surrounding areas

Approved

In business since 2007

Free estimates

Credit card accepted

"what they quoted was the final bill.....they cleaned up every area as they installed. They double checked as they were leaving to make sure everything was 100%. I wish they did more than electrical!!!"
7 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for W B Lightning Rods
W B Lightning Rods
4.6(
372
)
Lightning Protection - Install or Repair

Serving Marlborough, NH and surrounding areas

Approved

In business since 2001

Free estimates

Warranties offered

"William and staff responded promptly to my request for service with reasonable pricing. They arrived at the house at the agreed upon time, were respectful of my property, explained the process and completed the work within the specified time frame. They were pleasant, easy to work with and installed a quality lightning rods system. I highly recommend them."
lightning protection
 Residential LPS
lightning protection
 Residential LPS
lightning protection

+79

Response time1 day
149 neighbors recently requested a quote
Recommended by96%of homeowners
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Electrical FAQs, answered by experts

You should hire a licensed electrician who is insured to perform any electrical work on your home, including lighting installation. States have different requirements for licensing and certifying electricians, so use Angi’s state licensing tool to review local guidelines.

Here are a few questions to ask electricians before hiring:

  • How many years of electrical experience do you have?

  • Are you licensed, bonded, and insured?

  • Do you work with subcontractors?

  • Do you provide a guarantee or warranty on your work?

  • What is the timeline for completion?

  • How do you handle change orders?

  • Can you provide at least three customer references?

The Occupational Safety and Home Administration (OSHA) requires an electrical panel to have a minimum of three feet (36 inches) of room from the front of the panel to the closest obstacle. In this case, the word obstacle refers to nearly everything, including walls, machines, and other fixed objects. Additionally, panels require at least 6½ feet of headroom in the area directly in front of the fixture. These requirements help ensure safe use of the panel and allow electricians plenty of room to work.

240V is the standard for more demanding appliances in the United States, whereas 220V is more common elsewhere. The voltage isn’t very different in any practical sense. The United States is a newer country compared to many other regions in the world with a faster adoption of new electrical needs. Appliances in the United States are often bigger than other parts of the world.

It’s possible to distinguish a positive black wire from a negative black wire if you know what type of circuit the wires are in. If it’s an alternating current (AC), then black wires are positive. If it’s a direct current (DC), then black wires are negative. 

Sometimes, a circuit has two black wires. In that case, the positive black wire will be solid black while the negative black wire will have a white stripe on it. If you’re still unsure, you can use a multimeter to check.

The average cost to hire an electrician is around $350. However, every electrical job varies in scope, materials, and labor involved, so while you will likely pay anywhere between $85 and $1,100 for standard jobs, a project like rewiring a house can cost up to $30,000. You might also pay slightly higher prices if you need emergency work done or if the work involves accessing a hard-to-reach area in your home, like an attic or cramped crawlspace. You should ask your electrician for an estimate before agreeing to the work.

The Marlborough, NH homeowners’ guide to electrical services

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