Top-rated electricians.

Get matched with top electricians in Denville, NJ

Enter your zip and get matched with up to 5 pros

Need a pro for your electrical service project in Denville, NJ?

Select your specific project to find the pro for you.

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 by91%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
)
Electrical Switches, Outlets & Fixtures - Install or RepairElectric Vehicle Charging Station Installation - For Business - Materials Not ProvidedElectric Vehicle Charging Station Installation - For Business - Materials Provided by Consumer+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
1 neighbors recently requested a quote
Recommended by83%of homeowners
...
Showing 1-10 of 567
Electrical questions, answered by experts

Yes, California law requires that electricians be licensed by the state in order to do electrical work. However, there is an exception for small jobs valued at $500 or less. In these cases, an unlicensed handyperson is legally allowed to do the work. Limit hiring unlicensed contractors to minor tasks and fixes around your home.

While circuit breakers are designed to be reset after tripping, there isn't a strict countdown to when they will fail. The primary danger lies in a breaker tripping multiple times in a short period without allowing the components to cool down. Theoretically, a standard breaker might handle around 50 trips caused by simple overloading. However, this number can be much lower in practice. For instance, a high-current fault could damage a breaker to the point that it needs replacement after only two resets. Repeatedly resetting a breaker that trips frequently exacerbates the underlying problem by causing the electrical components, wires, and the breaker itself to overheat. This can lead to permanent damage, cause the breaker to trip unnecessarily in the future, and increase the risk of an electrical fire. If a breaker trips every few minutes, you should leave it in the 'off' position and call a qualified electrician for an inspection.

Grounding is an essential part of installing an electric fence. Without grounding, the electrical circuit will be incomplete. That means the fence won’t work and will fail at delivering shocks upon impact. Even grounding the fence improperly can cause faulty shocks, if any. To ground the fence, you will need to use ground rods, ideally made from copper or galvanized metal, that are at least 4 feet high, for best results.

Sprinkler valves typically have 16 AWG or 18 AWG wires. AWG, or American Wire Gauge, is the standard measurement for wire gauge sizing in the U.S. The gauge is the thickness of the wire, with higher AWG numbers indicating thinner wires. You can find the gauge measurement in your sprinkler system’s user manual or on the sprinkler manufacturer’s website.

If you connect the wrong electrical wires together, it can lead to a very dangerous electrical shock. All wires should be matched with wires of the same color. It’s very important to consult an electrician if you’re unsure about how to wire your fixture.

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.