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Avatar for Resolute Electric
Resolute Electric
4.9(
32
)

Serving Greensboro, MD and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Klaus and Ray are polite, professional and experienced. They replaced/upgraded the failing electric solution on our pier. Communication was easy. I'm a happy customer."
Braemar Towers remodel
Salvation Army
Reoccurring customer
Outdoor lighting
Braemar Towers remodel

+19

Response time9 hrs
8 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Carey's Custom Services LLC
Carey's Custom Services LLC
4.9(
33
)

Serving Greensboro, MD and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"On August 2025 I had two Hunter ceiling fans installed by Mike and was very pleased with the results. The installations were done efficiently and professionally, with both fans mounted in the second-floor loft and bedroom with 8’ ceilings. Communication was clear throughout the process, and he made sure everything was working perfectly, including the wall controls for each fan. I highly recommend their services for anyone needing reliable and quality electrical work."
Electrical Work
Electrical Work
Electrical Work
Electrical Work
Response time1 day
Response rate100%
6 neighbors recently requested a quote
Avatar for Galloway Electrical
Galloway Electrical
4.5(
55
)

Serving Greensboro, MD and surrounding areas

Approved

Free estimates

Emergency services offered

Customers say: Super punctual

"It went very well! Christopher and Deborah arrived 10 minutes earlier than the appointment time. They were very personable & professional. Galloway Electrical is officially my go to electrical contractor!!! I will definitely tell a friend/neighbor!"
Electrical Project
Electrical Project
Receptacles
Electrical Project
Electrical Project

+76

Response time7 hrs
Response rate100%
13 neighbors recently requested a quote
Avatar for W B Lightning Rods
W B Lightning Rods
4.6(
369
)

Serving Greensboro, MD 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
146 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for M.T. Appliance Repair
M.T. Appliance Repair
4.9(
33
)

Serving Greensboro, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Warranties offered

Customers say: True professional

"Very professional and efficient. Arrived timely, very knowledgeable, and efficiently repaired appliance. Our General Electric large refrigerator was not properly cooling. Found door leakage, ordered the part, and returned to replace the seal. No markup on the part, no added time to repair - entire transaction was very fair. Could not ask for a better experience."
Response time8 hrs
Response rate100%
1 neighbors recently requested a quote
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Showing 1-10 of 125
Electrical questions, answered by experts

Local electricians with experience in your area understand the local building codes, which is very important when doing new electrical work. They also have experience with the kind of electrical problems homes in your location may have, and even the components that were used in the original construction, which leads them to make faster and better decisions.

Yes, an electrical fire can start even if nothing is plugged into an outlet. While a correctly functioning outlet poses no risk, a fire can be caused by faulty wiring, damaged outlet components, an overloaded circuit, or other electrical problems hidden behind the walls. If you suspect a fault, immediately turn off the circuit breaker and contact a professional electrician to diagnose and repair the issue.

How far you can run underground electric depends on the wire gauge (generally AWG) and the circuit voltage. Too much voltage drop in an electrical circuit can negatively affect performance, so the smaller the voltage drop, the better. Ideally, it shouldn't exceed 3%. The smaller the wire and the longer the run, the more significant the voltage drop. 

For example, with a 120-volt circuit, you can run 60 feet of 12 AWG cable without losing more than 3% voltage. With a 240-volt circuit, you can run 120 feet of 12 AWG wire while maintaining a voltage drop of 3% or less.

You can make a pigtail with either thermoplastic high-heat-resistant nylon-coated (THHN) wire or non-metallic (NM) cable, often referred to as “Romex.” Each pigtail requires a neutral wire, a ground wire, and a live wire. The gauge of your pigtail wires must match the gauge of those on the device. 

You can distinguish the amplitude and voltage of most outlets by looking at the shape and positioning of the holes. Other features like buttons, switches, and USB ports help identify electric outlets, too. Use labeled images, like the ones we’ve included above, to cross-reference with your outlets.

The Greensboro, MD homeowners’ guide to electrical services

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