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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

Find Electricians in Denville

Avatar for First Class Electric
First Class Electric
4.8(
113
)
Electric Vehicle Charging Station Installation - Materials Not ProvidedElectric Vehicle Charging Station InstallationElectric Vehicle Charging Station Installation - For Business+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

1 neighbors recently requested a quote
Recommended by90%of homeowners
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%
2 neighbors recently requested a quote
APOLLO ELECTRICAL CONTRACTORS LLC
5.0(
43
)
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

"My experience with Apollo Electric was wonderful. I needed some normal electrical work done, and also some detailed more involved work. He handled everything with care as if it was his own home. He was very detailed oriented, neat, clean and very honest. Mike worked hard during the entirety of the job, I was very pleased and I would call him for any job I need involving electrical work for the future"
Recommended by83%of homeowners
Current Electric Contracting, LLC
4.3(
43
)
Electrical Wiring or Panel UpgradeElectrical Switches, Outlets & Fixtures - Install or RepairElectric Vehicle Charging Station Installation - Materials Not Provided+2 more

Serving Denville, NJ and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"We had an excellent experience with this electrician at our 120,000 sq ft office building. He came out to perform repairs and upgrades on our electrical systems and delivered truly professional, high‑quality workmanship from start to finish. His knowledge, attention to detail, and clear communication made the entire process smooth and efficient. It’s not easy finding someone who can handle large‑scale commercial electrical work with this level of skill and reliability. He showed up on time, worked safely, and made sure everything was done correctly the first time. I highly recommend him for any commercial or residential electrical needs. Outstanding service and professionalism"
Arisol Company
Response time1 day
3 neighbors recently requested a quote
Recommended by73%of homeowners
ARS Electric and Design, LLC
4.5(
33
)
Electrical Switches, Outlets & Fixtures - Install or RepairElectric Vehicle Charging Station Installation - Materials Not ProvidedCeiling Fan - Install+12 more

Serving Denville, NJ and surrounding areas

Approved

In business since 1994

Free estimates

Small jobs welcome

"Hired ARS to change out a bad/failed GFCI external outlet. Arrived on time and got the job QUICK! Extremely professional and super friendly!"
Response time1 day
5 neighbors recently requested a quote
Recommended by96%of homeowners
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Electrical questions, answered by experts

As a safety measure, you should always turn off the main breaker while operating your generator’s backup breaker. In addition, you should also switch off all appliance breakers so you don't have a power surge when the main breaker turns back on. And finally, turning off the main breaker prevents back-feeding, which endangers utility workers with the risk of electrocution. Back-feeding could also destroy the electrical circuits of your neighbors if they use the same power network.

String lights require electricity, but not an excessive amount, especially when compared to other lighting fixtures. LED rope lights, for instance, consume around one watt per foot. Running six or seven light strings simultaneously should only cost you around $10 to $15 each month. You can save even more money by remembering to turn off your lights during daylight hours. 

If a 240V appliance is connected to a 120V outlet, the lower voltage will cause that appliance to receive insufficient power. This may result in reduced performance, malfunctions, or even damage to the appliance's components. Depending on the size of your electrical circuit, you’ll likely need to reset a tripped circuit breaker at the very least.

There are several things to try to repair a broken outlet. Whether it's fixable or not may depend on the problem and the type of outlet itself. Start by testing the circuit with an electrical tester and ensuring the breaker switch to the circuit functions as it should. Loose wires are sometimes the culprit and are repairable by fixing the connections. 

Upgrading your electrical panel is often worth the cost for safety, improved electrical performance, and potential long-term savings. A primary benefit is preventing electrical fires and other hazards from a malfunctioning panel, ensuring your household's safety. An upgraded panel also provides a steady flow of electricity, eliminating issues like flickering lights and frequently tripped breakers. It allows you to connect additional appliances without overloading the system, which is especially beneficial for older homes with 100-amp service that are prone to overheating. If you run large appliances like central air conditioning, heating systems, hot tubs, or saunas, you might consider upgrading to a 300- or 400-amp service to meet the higher electrical demand. Furthermore, an upgrade can lead to long-term savings on energy bills and potentially lower insurance costs.

The Denville, NJ homeowners’ guide to electrical services

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