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TRUSTED BY KNOXVILLE, MD HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon182
    Verified electrical services reviews

Find Electricians in Knoxville

Avatar for Mark H. Anderson Electrical Services, Inc.
Mark H. Anderson Electrical Services, Inc.
4.4(
418
)
Electrical Wiring or Panel UpgradeElectrical Wiring or Panel Upgrade - For BusinessElectrical for Addition or Remodel - Install - For Business

Serving Knoxville, MD and surrounding areas

Approved

In business since 1990

Free estimates

Warranties offered

"Lowest price among multiple quotes and significantly more attention to detail and the least visible and least intrusive installation of new wiring from the existing panel. Would definitely recommend and use Mark H. Anderson Electrical Services again!"
Best of 2015
Response time1 day
4 neighbors recently requested a quote
Recommended by94%of homeowners
Long Electric, LLC
4.9(
168
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Knoxville, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Customers say: Quality work

"From start to finish, Long Electric had our backs. We didn't have to hire sub-contractors or to obtain permits -- Long Electric took care of everything. Our go-to person in the main office, Melissa, answered all of our questions and kept us apprised of everything we needed to know. Everyone we had contact with throughout the installation project treated us with the utmost in professionalism. Not only will I call upon them for future electrical needs, I have referred Long Electric to a friend who is also interested in a whole house generator."
Response time2 days
6 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Electrical Connections, LLC
Electrical Connections, LLC
4.3(
43
)
Electrical Switches, Outlets & Fixtures - Install or RepairCeiling Fan - InstallElectric Vehicle Charging Station Installation - Materials Provided by Consumer+7 more

Serving Knoxville, MD and surrounding areas

Approved

In business since 1989

Emergency services offered

Warranties offered

"I had a wonderful experience with Electrical Connections. My project ended up being much larger than I anticipated it would be and they were excellent at explaining everything and helping me understand what needed to be done. Customer service was top notch and clearly a priority for everyone I talked to from the scheduler to the owner of the company. Brian was excellent and stayed until the job was done even though it made an extra long day for him. Highly recommended!"
Electrical connections
Electrical connections
Electrical connections
Electrical connections
Electrical connections

+42

Response time4 hrs
Response rate93%
36 neighbors recently requested a quote
Avatar for Lou Electrical Contracting, LLC
Lou Electrical Contracting, LLC
4.5(
36
)
Electrical Switches, Outlets & Fixtures - Install or RepairElectrical Wiring or Panel Upgrade

Serving Knoxville, MD and surrounding areas

Approved

In business since 2006

Free estimates

Offers commercial services

"We had five different things for Lou to fix, including a chandelier that needed to be lowered and made level. Lou rounded the oval links in the chain that held the chandelier and that made it level for the first time! He figured out why a ceiling fan was making noise and why another one wasn’t working at all. He also replaced part of our electric panel which had somehow gotten water inside and was corroded. We didn’t have the right part to change lights in our Faber stove hood, but Lou did, and quickly replaced them for us. We were really pleased with how knowledgeable and competent our electrician was and plan to call him again if we have any more electrical problems."
22 neighbors recently requested a quote
Recommended by81%of homeowners
Sidike
5.0(
10
)
Electrical Wiring or Panel UpgradeLightning Protection - Install or RepairElectric Vehicle Charging Station Installation+10 more

Serving Knoxville, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Warranties offered

Customers say: True professional

"I needed a dedicated 20amp circuit and outside outlet installed to my patio. Maitiai arrived on time, was friendly/professional, and completed the agreed upon work. He filed for the appropriate permit with the City of Frederick, and helped schedule the inspection which passed without issue. I would have no hesitation contracting with him again in the future."
Electrical Project
Response time10 hrs
Response rate91%
2 neighbors recently requested a quote
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Electrical questions, answered by experts

Generators are safe to use as long as they are installed and operated correctly according to the manufacturer's recommendations. The most critical safety tips are to never use a portable or fuel-powered generator inside an enclosed space due to the risk of lethal carbon monoxide poisoning; always operate it outdoors where fumes can dissipate away from your home. Additionally, never attempt to connect a generator to your home’s electrical panel yourself—hire a professional to ensure the setup meets safety standards. Finally, avoid overloading the generator by not connecting more appliances than it is rated for, as this can damage your equipment or cause a fire.

Tipping an electrician is not a requirement nor is it expected, as they build a fair wage into the price of the job. It’s up to your discretion. There are no set rules for tipping electricians, but if they did a great job and you’re so inclined to tip 10% to 15%, it will likely be received with thanks.

To ensure batteries stop charging when they’re full, you’ll need to install a charge controller that determines when the battery is full. Once the battery is fully charged, the charge controller will stop the energy flow or divert the energy to the grid or other appliances. Without a charge controller, the battery may continue to charge, which can lead to less productivity and potential damage.

You should never wire neutral and ground wires together at a light switch. Not only is it unsafe, but it’s also incorrect. The neutral and ground wires perform separate functions in an electrical circuit and should never be swapped or wired together at a light switch, light, or outlet. 

You can tell if a breaker is GFCI by looking for a red or yellow test and reset button that you can press in and out. You’ll know if an outlet is GFCI if the red reset button is located in between the two pronged sections.

The Knoxville, MD homeowners’ guide to electrical services

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