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TRUSTED BY GREENVILLE, NH HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon242
    Verified electrical services reviews

Top-Rated Electricians in Greenville - Updated Nov 2026

Avatar for Wilson Brothers Heating & Air Conditioning Inc
Wilson Brothers Heating & Air Conditioning Inc
4.5(
160
)
Fixed Generator - InstallElectrical Switches, Outlets & Fixtures - Install or RepairFixed Generator - Repair+19 more

Serving Greenville, NH and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"We've used Wilson Bros. for nearly 18 years for our major systems work. They've installed a 2-zoned HE gas furnace and 2 water heaters and done routine maintenance. Have also responded immediately in one or two emergencies. This is a family run organization. EVERYONE from accounting to technicians to estimators to the owner of the company are professional, personable and know what they're doing. And they get things done. They are not the cheapest in town, but their pricing makes sense and i'm willing to pay for the continuity. For less important things i'll use journeyman plumbers. But for the important stuff Wilson Bros. are my go-to folks. I can't say enough good things about them, if you couldn't already tell."
Three of the five heads are marked by the numbers in the blue circle. On the inside of the house is where you will find the mounted units. The slim ducts run alongside the white arrows and will eventually be covered to match the exterior of the house.
The slim ducts in the basement ceiling that connect from the branch box all the way to the 5 different heating and cooling units. These will be covered by the ceiling tiles once the job is finished.
7 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for The Speedy Sparky LLC
The Speedy Sparky LLC
5.0(
8
)
Electrical Switches, Outlets & Fixtures - Install or RepairElectrical Wiring or Panel UpgradeElectrical for Home Addition or Remodel - Install+1 more

Serving Greenville, NH and surrounding areas

Approved

In business since 2023

Free estimates

Warranties offered

"Aubrey is great. We set an appointment which he was prompt for. He estimated the time which he was also right on the money, and the work was done neat, clean, and everything tested perfectly. This is the second time I have had him do some work for me and will call him for anything else electrical that I have."
Camper outlet & breakers
Camper outlet & breakers
Response time11 hrs
Response rate90%
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 Greenville, 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 Greenville, 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
123 neighbors recently requested a quote
Recommended by96%of homeowners
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Electrical FAQs, answered by experts

In the case of electrical overflow, an ungrounded outlet should trip the circuit breaker, staving off dangerous scenarios. However, this is not always the case, especially if the wires and circuit breaker are worn down or damaged in some way. Ungrounded wires melt over time as they are introduced to more and more electricity. In other words, a circuit breaker offers protection in most instances but not always, and that’s where the danger lies with ungrounded outlets.

You should never plug a normal 120v appliance into a special 240v outlet, as it can quickly burn out the appliance. This will cause irreparable damage to the appliance and, in worse case scenarios, cause damage to your circuit breaker. Check your appliance’s rating before plugging it into a 220v outlet to avoid electrical disaster.

Heated floors use less electricity than traditional heating systems. The average electric bill for running radiant floor heating nonstop is around $3 per day. For example, a 1,500-watt electric space heater costs around $4.80 per day, a 27,000-BTU electric boiler costs around $6.25 per day, and a 100,000-BTU electric heater costs $46 per day.

These advanced generators use a key fob or a smartphone app to remotely start, which is ideal for getting power back on immediately without venturing outside. This feature is more common on whole home generators, but you may be able to find it on large portable generators, too.

DIY is not recommended for commercial settings due to safety regulations. Hire licensed professionals for compliance.

The Greenville, NH homeowners’ guide to electrical services

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