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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
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

"Quality work at a competitive price. Roy was very thorough with his work and reviewed all options with me to ensure my satisfaction. I plan to recommend RAP electric to one of my family members, and to use them for future jobs."
Response time2 hrs
Response rate93%
Recommended by90%of homeowners
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

"Chris at ARS Electric was both knowledgeable and friendly. He and his coworker were able to come for my small bathroom exhaust fan installation job the day after I inquired on Home Advisor. Accessibility to contractors these days is never that fast. I highly recommend the services if ARS Electric."
Response time1 day
5 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Guardian Electric, LLC
Guardian Electric, LLC
4.9(
39
)
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 2012

Free estimates

Emergency services offered

"I connected with Bob on the phone immediately and did not hire 3 other pros who bid on the job. Bob was very competitive. The quote had to be revised after the fact and after hanging several fixtures however, Bob was very professional handling it and was a gentleman. I trusted both Bob and Chris alone in my home and felt very comfortable doing so. Bob, Chris and their team Rob A and Rob C were perfectionists and extremely competent. The team is very pleasant, professional and easy to work with. Bob and Chris are very reliable, warm and more than competent. Bob has been doing electrical work for 35 years and is up for any challenge. I would hire them in a heartbeat to do electrical work in my house and would highly recommend them!!!!"
Electric Rough-In
New Ceiling Fan Installation
New Service Hook-Up
New Kitchen Renovation
New Switchboard Installation

+44

Response time9 hrs
Recommended by83%of homeowners
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Electrical questions, answered by experts

First, check the current electrical code in your area to ensure spaces you’re considering meet the requirements. After that, your outlet’s location is up to you. If you’re moving it to hide wiring, you may want to move it in a spot that will also be hidden from view, such as behind a media center or table. As long as you meet the spacing guidelines set by electrical codes, you should be able to pick any spot in your home for an outlet. 

Overall, heating your home with an oil furnace tends to be less expensive than heating your home with an electric heating system. Oil heating systems stay warm for longer periods of time without drawing a constant electrical current to maintain a temperature. Plus, heating oil systems typically have a longer lifespan and lower price tag than their electrical counterparts, resulting in short- and long-term savings.

A larger heater requires a larger breaker—unless there’s one already installed. The longer answer to this question is more nuanced. Do you place demands on the heater at the same time as running other heavy-duty appliances like ovens and washing machines? Do you live in an older home that may not have considered the higher electrical demands we have now? Breakers need to be sized at 125% of the load. To find that load, you should call a local electrical pro.

Volts and watts aren’t directly convertible units—they measure different aspects of electricity. Volts measure electrical potential, while watts quantify the power. The relationship between the two is defined by the equation: Power (watts)= Voltage (volts) x Current (amperes). In other words, the product of volts and amps results in watts, but there is no fixed conversion of volts into watts.

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.

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.