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  • Average homeowner rating star icon4.8
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  • Verified reviews icon126
    Verified electrical services reviews

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MJS Electrical Services, LLC
3.6(
38
)
Fixed Generator - InstallElectric Vehicle Charging Station Installation - For Business - Materials Not ProvidedElectric Vehicle Charging Station Installation - Materials Not Provided+3 more

Serving Troy, 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(
369
)
Lightning Protection - Install or Repair

Serving Troy, NH and surrounding areas

Approved

In business since 2001

Free estimates

Warranties offered

"WB Lightning Rods did an excellent job installing lightening rods on our home. The owner stayed onsite the entire time to supervise the work. He took extra care to plan the rod and cable placement to ensure the proper protection and retain the aesthetics of our home. His crew were knowledgeable, polite, neat and efficient. We could not be more pleased with the results."
lightning protection
 Residential LPS
lightning protection
 Residential LPS
lightning protection

+79

Response time1 day
165 neighbors recently requested a quote
Recommended by97%of homeowners
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Electrical questions, answered by experts

Yes, but our analogy with the water hose doesn’t really work here. You see, electrical flow isn’t constant: It ebbs and flows like waves, coming in pulses of power. Hertz measures the rate of change in the flow of electricity, or how often it ebbs and flows. For example, 60Hz means that the electrons pulse through wiring 60 times per second. When they are pulsing, they’re in a brief retreat. Almost all United States equipment is rated for 60Hz.

No, wiring does not need to be redone to get a dimmer switch, as they work with single-pole and three-way switches. Just ensure you choose a dimmer that is compatible with your wiring, fixture, and lightbulbs. Most homes built after 1985 have neutral wiring and work with almost all dimmers. If your home was built before 1985 and you don’t have an updated electrical system, you may have to use a non-neutral wiring dimmer.

Yes, splicing wires can cause a fire if the splicing is done incorrectly. This is why splicing wires is a task best handled by electricians. One of the most common mistakes made when splicing wires is not using a wire connector. Without a wire connector, electricity flows unsheathed and can result in a home electrical fire.

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.

If you have a tank-type electric water heater, it runs regularly to keep the water at the desired temperature. If you live in a home where you don’t use much hot water, it could seem wasteful to run power to heat water that you’re using infrequently. You could save some power by using a smaller tank, insulating the tank, or lowering the temperature of the water heater.

The Troy, NH homeowners’ guide to electrical services

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