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J.M. Mullen has performed numerous commercial electrical installations projects including indoor soccer fields, restaurants, and churches. Whether you want to renovate an individual office, or upgrade an entire commercial space, J.M. Mullen Electric can provide a complete “turn-key” installation.

Annapolis MD Electricians


Our vast supply chain and in stock products allow us to react quickly to residential service calls. Whether you need repairs, maintenance or new construction work completed, J.M. Mullen Electrical Services can provide cost effective solutions for your project. Learn more about how we can help you or contact us to get started today!

Annapolis MD Electricians


Our experienced electricians are on-call to service any electrical issue your company may encounter. We offer property management for all types of properties, large or small. Our competitive rates and attention to detail make us an industry leader in this discipline. Learn more about our property management now!

Annapolis MD Electricians


J.M. Mullen Electric can provide you with 24-hour reliability in response to any electrical issue you may be experiencing. Our on-call service electricians are available anytime, day or night, to troubleshoot the problem and get things back to normal. Need help? Fill out a service ticket and we’ll get right on it!

Electrician, Electrical services,Annapolis MD

Welcome to J.M. Mullen Electric

For over 25 years, J.M. Mullen Electric has become an industry leader in the electrical trade. This is because we work hard for our customers and provide them quality service at a fair price. Throughout the years this has translated into a reputation of trust and distinction, on which we pride ourselves on every day. Because of this, repeat customers and their needs have become a substantial part of our day-to-day operations.

From starting as a small contractor working locally in the Baltimore area, our geographical scope has grown to cover all of central Maryland. From Baltimore County to Calvert County, from the Eastern Shore to the District of Columbia, J.M. Mullen Electric provides fast and dependable service that our customers have come to appreciate.

Feel free to give us a call regarding any electrical installation. We have the knowledgeable office staff to get the job off the table quickly; the experienced electricians to handle the installation effectively, and follow-up service upon completion to ensure your complete satisfaction.

Our customers include general contractors, developers, property managers, bankers, landlords, restaurant owners, retailers, and residential customers. Customer satisfaction is at the forefront of our overall mission because we know how important effective communication is in providing service quality. Our staff is prepared to see through any project, on time and budget.

Why choose us?

  • 24 Hour Reliability
  • Cost Effective
  • Experienced
  • Customer Oriented
  • Dedicated

Our experienced and personable electricians are knowledgeable in all electrical fields. Our office staff has been working in the industry for a combined 61 years, giving us unparalleled experience in managing projects from start to finish! Contact us today to get started on your project!

What our clients say about us

John - I wanted to take a moment and pass on my sincere appreciation to all the lads for all their hard work and dedication over this past weekend in getting all the switchgear swapped out for our new generator. It was a lot to accomplish and I really do appreciate the work of Glen Watson, Bill Lawver, Steve Frostbutter, Tommy Bednarik, James Bolin, Matt Smith, Tim Mullen, Nick Jones, Drew Mann, Tom Chandler, Scott Ike, Luke Akers, KC Cranford and of course you. In true J.M. Mullen Electrical Services fashion, you got the job done ahead of schedule and I had no worries throughout the whole process.
Mark Smith
Facilities Development Manager / SECU
Mazzuca Contracting has been working with JM Mullen Electrical Services for the last ten years. We feel JM Mullen has the experience and professionalism to handle any level of work we award to them. They provide a quality project with the pro-active approach and problem solving method to complete projects on time and within budget. I feel working with JM Mullen I get a personal family experience with professional, knowledgeable company backing up their work.
Butch Farabaugh
HITT Contracting has enjoyed a 10 year+ long and successful relationship with JM Mullen electrical company. They have consistently provided excellent, professional and flexible service on many projects including, large tenant improvements, heavy renovations, new construction and service projects. We recommend JM Mullen without hesitation or reservations.
Christian Zazzali
Vice President / HITT Contracting Inc.
JM Mullen's commitment to service and quality is outstanding. Their ability to focus on customer needs while providing integral project solutions is excellent. We look forward to working with them on many more successful projects.
Andrew S. Fishback
Project Designer / Hammond Wilson


Weekly articles about news, trends and ideas

Apr 2019
15th Apr 2019

Electrical Q and A’s

As a certified and experienced electrical contractor, I find people coming to me for advice on any number of related subjects. As a result, this blog will be devoted to providing answers to some of the most common queries I receive.

Q. Could our home be in danger of storm surge?

A. Storm surge is an abnormal rise in water due to a storm that can cause flooding. There are certain locations in the country that are more prone to storm surges than others. If you live near water there is the possibility that a strong rainstorm could cause water banks to overflow and result in flooding to your home. Even in the driest states in the country, there have been occasional instances of flooding. You should speak to your insurer to find out more.

Q. I keep having outages in the same location and it is becoming more common. Then this morning I had the same thing happen but when I turned on the stove everything started to work again! What should I do?

A This continued occurrence is not a good sign as you now have evidence that there is trouble with the wiring in your house. The causes could be many; start with determining when your house was built and what were the electrical requirements at the time. For example, what type of wiring was used? It’s a good idea to contact a contractor and have a professional examination of your electrical system.

Q. I get shocked by static electricity often in my home. Do you have any suggestions on how to avoid this?

A. Static shocks are no fun and can be painful. One of the most common ways that static builds up is when you are walking around on carpet. After a while this redistribution of electrical charges ends in a release that hurts! One way to avoid static shock is to wear rubber-soled shoes as rubber is an excellent insulator. Also, the type of clothes you wear can make you more prone to electric shocks. Don’t wear synthetic fabrics, like rayon, nylon, and polyester, as they conduct electricity well. In addition, layering your clothes increases the likelihood of getting shocked. Finally, keep a humidifier going as this will also lessen the chance of static buildup.

Have an electrical question? Contact J. M. Mullen Electrical Services – we have your answer!

5th Apr 2019

Home Security Cameras

Home security systems are becoming very commonplace because of their wide availability and affordability. They are also becoming easier to install. Many are also becoming wireless although that does not negate the use of more traditional home security systems as good choices as well.

Today’s wireless security cameras and systems try to present themselves as a do-it-yourself job. For some this may be true. But, since you may be talking about interfering with the current wiring and electrical system in your home it is probably a good idea to call on your neighborhood professional electrical contractor to provide the appropriate support. After all, even if the security camera claims all you need to do is ‘plug it in’, there are plenty of opportunities for mistakes to be made during the installation process. Here are a few suggestions to make the job go easier.

• Start by making a diagram of what you believe are your surveillance needs. It is not necessary to monitor the entire surface area of your home and yard. Identify those areas you want to monitor and then do a physical check to be sure there are no obstructions prior to installing the camera. Some of the most recommended areas for cameras are windows, doors, driveways and porches. But you may also want to have monitors on your home’s valuables and the indoor / outdoor areas where your children play.

• Research the various security camera options then consider their pros and cons before purchasing. Weigh the advantages of a wireless system versus a wired system.

• If you are going to install a security camera system it is a good idea to see the breadth of coverage it offers before it is put in. Often, homeowners believe that one camera will give them complete coverage of their property and this is usually not true. Today’s security cameras do provide multiple perspectives by panning, tilting and zooming but even this does not guarantee a 360-degree view of your home.

• Finally, test out the equipment before you install it. Then once it is installed, be sure to work with it until you are comfortable with how to operate all its components.

Better yet, if you are in the market to install security camera equipment in your home, contact the commercial electrical experts at J.M. Mullen Electrical.

Mar 2019
27th Mar 2019

Back Up Generators

A generator is a machine that converts energy into electricity. Generators are usually classified according to the source from which they draw their power. For example, a generator can be water or gas-powered.

Many homeowners agree that a generator is a ‘must-have’ in today’s world where power can be disrupted by a climactic or other event without warning. Even so, you can’t just ‘hook up’ a generator and expect it to work. You need to do some advanced planning.

  1. Contact an electrician. It is best to bring in a professional when it comes to the electrical systems in your home. The professional will ask you to determine what appliances in your home you would like to keep running ‘off-line’ in the case of an electric power loss.
  2. Take the time to figure out how much electricity your generator will provide and how much fuel will be needed to keep it running on a 24-hour basis.
  3. You should know that you cannot plug a generator directly into a wall socket. You must be disconnected from the larger power grid first. To run a generator, you must install a ‘transfer switch’. This is complicated and should be done by a professional. The transfer switch will be wired directly into your electric service then the generator will be plugged into a subpanel. When the switch is activated, it removes you from the power grid.

There are other things that must be taken into consideration. For example, there are standby generators and backup generators. A standby generator will start up immediately in the case of a power outage. This would be especially important if you are operating medical equipment in your home. On the other hand, a backup generator must be started manually.

No matter what type of generator you invest in, you should always test it a few times a year to be sure it is in good working condition and that you are comfortable in starting it up and getting it running.

Remember, generators get hot! They also emit carbon dioxide, which can be lethal, so set the generator away from the home and on a level surface with plenty of unobstructed room.

Contact J.M. Mullen Electrical Services when you need assistance installing a generator and for all your residential electric needs.

19th Mar 2019

How Much Energy Do Video Game Systems Use?

What home with or without children does not have at least one video game system? They are usually plugged in and ready to play at a moment’s notice and remember, video games are not just for kids anymore. The games have long since graduated to have adult appeal. And for those who are really into it, the newest wrinkle to video gaming is virtual reality, which allows you to immerse yourself in the middle of the action.

But, have you ever wondered how much electricity these video game systems are using? Let’s take a closer look at the answer to this question. First, it should be noted that many game consoles have what is known as a ‘standby mode’. Standby mode lowers the amount of electricity the console is consuming when not in active use. The problem is that most game consoles are now streaming everything. They have become the entertain hubs and as a result they are using much more electricity than before.

Whenever a device is plugged in and left on, even in standby mode, it is still consuming electricity. You may have seen commercials urging consumers to unplug your phone’s power cord when you are not charging it because it wastes electricity. Well, the truth is most game consoles left in ‘standby mode’ also waste electricity. Experts suggest that the average household wastes nearly $200 dollars a year on wasted energy consumption. I am sure you could think of other ways to use that money!

Researchers have calculated the average energy use for various game consoles. They have found that the newest Xbox and PS4 consoles use 3x the amount of energy than even the generation before! The Xbox consumes an average of 72 watts an hour and the PS4 89 watts an hour. The government’s Energy Star standard is 50 watts per hour, so it is easy to see they exceed that number. Too, this does not take into account the amount of energy used when they stream live Netflix or Amazon Prime games.

Do you have questions about your appliances and the amount of energy they are using? Contact the experts at J.M. Mullen Electric Services, we’ll be glad to assist you.