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TRUSTED BY DENVILLE, NJ HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon1k+
    Verified electrical services reviews

Verified Reviews for Electrical Service pros in Denville, NJ

*The Angi rating for Electrical Service companies in Denville, NJ is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Electrical Service needs.

*The HomeAdvisor rating for Electrical Service companies in Denville, NJ is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Electrical Service needs.

Last update on May 22, 2026

Find Electricians in Denville

Avatar for First Class Electric
First Class Electric
4.8(
112
)
Electric Vehicle Charging Station Installation - Materials Not ProvidedElectrical Wiring or Panel UpgradeElectric Vehicle Charging Station Installation+10 more

Serving Denville, NJ and surrounding areas

Approved

In business since 2007

Emergency services offered

Credit card accepted

"I highly recommend First Class Electric. I called this morning and by 10 am Joey the technician was calling me confirming he was on his way. The operator who made the appointment was very friendly and helpful. The technician Joey was very knowledgeable and friendly. He is an asset to your company! He understood what needed to be done and explained his plan. He made sure I was satisfied and answered every question. I will definitely use this company again but I want Joey to be the technician. Thank You!!!"
Generator
Generator
Generator
Generator
Generator

+21

2 neighbors recently requested a quote
Recommended by91%of homeowners
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Avatar for Best Dressed Electric
Best Dressed Electric
5.0(
32
)
Electrical Wiring or Panel UpgradeCeiling Fan - InstallCeiling Fan - Repair+14 more

Serving Denville, NJ and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"Jeremy was quick to respond, arrived right on time, and did a phenomenal job faster than most others would. He was very neat and professional and I highly recommend his services to anyone looking to have an electrical project completed."
Electrical Project
Home Automation Project
Home Automation Project
Electrical Project
Wall box

+33

Response time2 days
Response rate100%
1 neighbors recently requested a quote
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Avatar for B-Tec Electric Co LLC
B-Tec Electric Co LLC
5.0(
166
)
Electrical Switches, Outlets & Fixtures - Install or RepairElectrical Wiring or Panel UpgradeElectric Vehicle Charging Station Installation+10 more

Serving Denville, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 1993

Free estimates

Warranties offered

"Second time using B-Tec electric and I think now they are my go to electrician. I used them previously to upgrade my panel to 200 Amp and this time to hook up my new electric water heater. Both tasks were completed perfectly and fairly priced. I highly recommend B-Tec electric!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+123

Response time8 hrs
Response rate100%
2 neighbors recently requested a quote
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Avatar for Anzalone Electric & Lighting, LLC
Anzalone Electric & Lighting, LLC
4.9(
112
)
Electric Vehicle Charging Station Installation - Materials Not ProvidedElectric Vehicle Charging Station Installation - Materials Provided by ConsumerElectrical Wiring or Panel Upgrade+2 more

Serving Denville, NJ and surrounding areas

Approved

In business since 2008

Free estimates

Small jobs welcome

"Scott, Was accommodating to my outlet and ceiling fan needs. He showed up on time. Did the job right and at a fair price. I would definitely use Anzalone Electric and Lighting again for future electrical work."
Finished panel
Electric Tie in
installing breakers
The old mast
Response time8 hrs
Response rate87%
9 neighbors recently requested a quote
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Avatar for RYB Electric, LLC
RYB Electric, LLC
5.0(
22
)
Electrical Switches, Outlets & Fixtures - Install or RepairCeiling Fan - InstallElectric Vehicle Charging Station Installation - For Business - Materials Not Provided+12 more

Serving Denville, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"RYB Electric is the Best!!! Very courteous, knowledgable and punctual. I highly recommend hiring RYB Electric!!!"
Emergency Call
Emergency Call
Panel Replacement
Panel Replacement
Response time4 hrs
Response rate95%
1 neighbors recently requested a quote
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R.A.P Electric Company Inc.
5.0(
19
)
Electric Vehicle Charging Station InstallationElectric Vehicle Charging Station Installation - For BusinessElectric Vehicle Charging Station Installation - For Business - Materials Not Provided+10 more

Serving Denville, NJ and surrounding areas

Approved

Super Service Award Winner

Customers say: True professional

"I was Super Pleased with the work that Roy from RAP electric did- the work was carefully and safely taken car of- the fee was Very fair and I would and will hire RAP Electric again and again, and I have recommend him to many of my friends -"
Additional Photos
Response time8 hrs
Response rate100%
Recommended by66%of homeowners
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Avatar for MD Electrical Solutions, LLC
MD Electrical Solutions, LLC
4.9(
126
)
Electric Vehicle Charging Station Installation - Materials Not ProvidedElectrical Switches, Outlets & Fixtures - Install or RepairElectric Vehicle Charging Station Installation - For Business - Materials Not Provided+4 more

Serving Denville, NJ and surrounding areas

Approved

In business since 2007

Free estimates

Small jobs welcome

"Mark was quick to call and help schedule my job. He was helpful and professional while explaining all of my electrical needs"
Panel Swap - before
Panel Swap - After
Panel Swap - After
Kitchen fixtures
Kitchen fixtures

+21

Response time4 hrs
Response rate89%
2 neighbors recently requested a quote
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Avatar for RAP Electric Co., Inc.
RAP Electric Co., Inc.
4.6(
137
)
Ceiling Fan - InstallElectrical Switches, Outlets & Fixtures - Install or RepairPortable Generator - Install

Serving Denville, NJ and surrounding areas

Approved

In business since 1984

Free estimates

Emergency services offered

"Roy was excellent took the time to find and solve my electrical problem. It was not easy to find. Explained process. Very curtious. Contacted me twice afterwards to make sure problem was solved."
Response time2 hrs
Response rate93%
Recommended by90%of homeowners
Request Quote
Hi Tech Electric
4.5(
78
)
Ceiling Fan - InstallCeiling Fan - RepairElectric Vehicle Charging Station Installation - For Business - Materials Not Provided+15 more

Serving Denville, NJ and surrounding areas

Approved

In business since 1993

Free estimates

Emergency services offered

"Bill and his team were outstanding. They accomplished a large electrical task in short time and even reorganized the circuit breaker and rewired some old 220s and converted to 110s. Highly recommend and would use them again on future projects."
Recommended by74%of homeowners
Request Quote
APOLLO ELECTRICAL CONTRACTORS LLC
5.0(
40
)
Electric Vehicle Charging Station Installation - For Business - Materials Not ProvidedElectric Vehicle Charging Station Installation - For Business - Materials Provided by ConsumerElectric Vehicle Charging Station Installation - Materials Not Provided+7 more

Serving Denville, NJ and surrounding areas

Approved

In business since 1999

Free estimates

Small jobs welcome

"Apollo electric was well informed and I will use them again."
Recommended by90%of homeowners
Request Quote
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Showing 1-10 of 562
Electrical questions, answered by experts

A ground wire is not required for GFCI to work. A ground is a third wire in an outlet in addition to the live and neutral wires. It serves as an escape conduit for electricity in case of a short circuit. If a ground wire is present, installers should connect it to the appropriate terminal. Otherwise, a GFCI will work fine without it.

To power the system down, simply turn it off and cut it off from its electricity. That means removing the transformer from the wall plug and taking out the battery that usually sits within the control panel itself. That will disconnect it from power and essentially reset the entire alarm system.

Baking soda is an effective fire reduction method. However, flour and baking powder are very dangerous around flames. Flour is flammable and it can also conduct electricity. The combination can cause serious injury from electrical shock and worsen the situation by adding fuel to the fire. Baking powder is also not an option as it's also highly flammable. 

Outdoor outlets should be at least 15-amp, but preferably 20-amp. The exact rating will depend on the electrical load of the devices that will be plugged into the outlet and the capacity of the circuit. It's important not to overload the circuit, which can cause safety hazards such as tripped breakers or electrical fires. In general, a circuit rated for at least 20 amps is recommended for outdoor outlets, while each outlet should be rated for at least 15 amps.

If you need to run a wire from the meter to the breaker box, start by turning off the power using the main switch to avoid injury risks from live wires. Then, locate the ground wire from your meter and connect it to the ground bar of the breaker box. Connect the neutral wire using the same method to improve your circuit efficiency.

Next, locate the hot wires running from the main switch to the meter. To connect them to the correct terminals from meter to breaker, unscrew the nuts of the breaker hotwire terminals, insert the positive hotwire, and ensure it’s firmly attached. Finally, secure the wires with electrical tape and wire tie cables before re-securing your breaker box. Keep in mind that this process can be dangerous, so don’t hesitate to hire a local electrician.

The Denville, NJ homeowners’ guide to electrical services

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