Welcome Home!

Nothing is more inviting than a well-lit home. Let us brighten your driveway, walkway, and front door.

Our fleet of trucks are standing by

Our fleet of trucks are standing by ready to dispatch our team of experienced electricians. We offer free estimates and 24 hour emergency service for our customers.

E & M O'Hara can install customer-supplied lighting.

These inexpensive chandeliers are made with colorful drum shades from IKEA.

The Main Office

Eddie, Kelly Ann, Stephany and Margot. At your service!

Kitchen Renovations

Optimum placement of lighting and outlets for function and beauty.

Michael and Edward O'Hara

The two brothers started the company in 1963. Our mission, then and now, has always been to provide expert electrical service at competitive prices.

The Iconic Artichoke Lamp

Considered a classical masterpiece, this fixture, designed by Poul Henningsen in 1958, has been stated to be the consummate modernist chandelier.

Corporate Installations

Fluorescent lighting is economical and energy-efficient in large rooms.

Our First Truck

Thanks to our loyal customers, O’Hara Electrical Contractors has been serving NJ for over 50 years!

Safety and Security

Exterior lighting, overhead and along sidewalks, improves visibility at night. Take advantage of our certified lighting expertise to recommend and install the latest technology, especially LED lighting.

Electrical Service Company Chatham NJ

Even for the dedicated DIY home improver, there’s going to reach a point in your renovation process when you’re in need of the abilities of an experienced commercial and residential electrician in Montclair NJ, such as O’Hara Electric. Our professional electricians can handle a wide range of projects that aren’t merely vital but are potentially capable of being dangerous when not performed correctly. This can range from a total upgrade of your home to installing landscape lighting and light fixtures, and even dealing with extreme electrical emergencies. That is the reason having a dependable electrician like O’Hara Electric on your side is important for every homeowner. Our highly skilled professionals are ready and capable of improving the safety, comfort, and function of your house. Many individuals find themselves tempted to perform their own attic fan installation or 200 amp service upgrading. However, it can do more damage than good in the event that you are not trained properly. Make O’Hara Electric your first choice if you are trying to find residential electricians in Chatham NJ and save yourself the hassle and the risk.

Electrician Chatham NJ

Getting an electrical inspection from a qualified residential electrician in Montclair NJ before purchasing your house is a wise idea many individuals neglect to think about. It is basic protocol to receive a general home inspection. However, an expert from O’Hara Electric will be able to give your electrical systems much more focus than you’ll receive from a general home inspector. You will be able to know if your house is really up to code simply by hiring an electrician to perform a comprehensive inspection. This is also a perfect opportunity to make sure that serious issues which will need to be dealt with prior to the sale being finalized are flagged. An experienced electrician is going to be able to tell right away if there are any major issues you are faced with. Faulty and consequently unsafe wiring is found commonly in older houses, resulting in them not meeting current electrical codes. A complete rewiring of your property might be required, unfortunately in this case. This is where having a trustworthy residential electrician on your side is capable of being a great benefit. Knob and tube wiring replacement for major projects is still affordable and budget-friendly when you make us your top choice. Make O’Hara your top choice for an electrician in Chatham NJ for any type of major electrical work to help your home meet current electrical codes.

Electricians Montclair NJ

Lighting fixture installations are one of the most common reasons why contacting a commercial or residential electrician in Montclair NJ and surrounding towns is so essential. This is a service which both home and business owners take advantage of frequently. Never underestimate the effect that your lighting fixtures are capable of having on your everyday life. Despite the fact that you might not be thinking of it at the time, any activity you do indoors is going to have lighting as an important factor. However, having lighting which is ideal increases quality of life in general, and is capable of making a lot of tasks easier. You may find that you are straining your eyes a great deal when your room does not have lighting that is ideal. When appropriate lighting isn’t installed in your place of business, commercial clients discover this is a major issue since their productivity is capable of being significantly limited. This is even capable of leading to liability and safety issues if this is in an area where people can trip. Save yourself the worry and trouble and simply call the experts at O’Hara Electric for top quality lighting installations for your business or home. We work with a broad variety of kinds of lighting technology, from the newest LED technology to old knob and tube wiring like you’ll discover in older buildings. This means if you need a commercial or residential electrical service in Chatham NJ or the rest of the local area you can rely on to get the job done, there’s nowhere else you’ve got to turn but O’Hara Electric.

Residential Electrician Montclair NJ

Are you looking for expert installation of landscape lighting in Chatham NJ? This is a service we perform at O’Hara in addition to performing installations for your home or business’s interior. This is a service that has the potential to truly transform your property into something special. It offers many practical and safety advantages together with the visual improvements it’s going to bring. You can significantly benefit from the services we’re able to provide in terms of landscape lighting whether you’re a home or business owner.

Commercial Electrician Montclair NJ

As a top choice among commercial and residential electrical contractors in Montclair NJ and surrounding towns we are very concerned about the safety of all of our clients. It’s essential to make sure that issues with your electrical systems are kept to a minimum so that you’re able to go about your day without having to think about it. One of these services is installation of GFCIs, and this is a service which is genuinely lifesaving. As a matter of fact, all new homes are required to have these in the bathroom, outdoor, and garage outlets as per the National Electrical Code. The fact that they protect the user from water, something that obviously does not mix well with electricity, is the reason why. A GFCI can offer you much more protection than a circuit breaker or fuse is going to in the event that an electrical appliance falls in water while plugged in. This is only another example of why if feeling safe in your home or business is important to you, hiring a residential and commercial electrician in Chatham NJ you’re capable of relying on is an important factor to consider.

Electrical Contractor Chatham NJ

Attempting to perform work on their own rather than contacting a professional electrical service in Montclair NJ is common among homeowners that are attempting to save money. Maybe a lighting fixture installation or even an attic fan installation is something you can actually perform on your own. However calling a specialist is a considerably wiser move, especially if the job is a lot larger than that. Having a expert electrician from O’Hara Electric perform the work the appropriate way the first time is a smart idea because of this. A professional residential electrician is going to check the amperage of the circuit and the wattage of the new fixture when doing something like an attic fan installation, for instance. There might be instances where the amperage is not high enough to handle the wattage of the light. In this case, an additional wire is going to be capable of being run from the circuit breaker. Contacting an expert to handle this sort of undertaking is a wise idea, generally speaking. It is safer for you, and is capable of saving you significant amount time, money, and aggravation in the long run. O’Hara Electric has a reputation as being a top company for lighting fixture installations. With jobs ranging from major work for large commercial spaces to something small such as a smoke detector installation, we are able to get the job done quickly and efficiently. Call us today whatever your needs are from a residential or commercial electrical service in Chatham NJ.











• Licensed, Bonded & Fully Insured • Certified Lighting Consultants • Voted #1 BEST Electrical Contractor in Essex County


• 24-HR Emergency Service for Our Loyal Customers • Free Estimates • Multiple Convenient Locations for Fast, Responsive Service

Quality is never an accident; it is always the result of intelligent effort.

–John Ruskin

Fast. Reliable. Dependable.

Expert Electrical Service at Competitive Prices.