Meet the Team

William Castillo
Hello, I’m William Castillo and thank you for your interest in our company. I have lived in the DC metro area for over 30 years. I have seen many changes in our area over the years but one thing has always stayed constant. It has always been a great place to work and to raise a family. I started Bills Electrical back in the early nineties and later changed it to Electrical Connections LLC when my son and I began to work together in 2003. It has always been my dream to work with my son and it came true. We have made a great team with all of my technical expertise and experience and his positive energy and likable personality. Thank you for your interest in our services and we look forward in serving you.
Guillermo Castillo
Co-founder & CEO
Hello, I’m Guillermo and I want to thank you for your interest in our company. My father and I started Electrical Connections, LLC in 2003. I attended Richard Montgomery High School and also studied at the University of Maryland University College business administration and finance. I am a blessed man married to my beautiful wife Maria and also blessed with my two children. I have lived in Montgomery County almost all my life and feel this is the greatest place to live and raise a family. I feel the diversity, history, and people are what make living in our area so special.
Maria Castillo
Vice President & CFO
My name is Maria and I am a happy wife and mother of two beautiful children. My husband Guillermo and I were married in 2008 in Nicaragua. I joined the company the same year as the Chief Financial Officer. I appreciate the time you took to read more about my background, our outstanding team and our great company. Our experienced electrical safety advisors are ready to take care of all your electrician needs. Have a blessed day!
Service Manager
Hello I’m Josh. I was born and raised in Austin Texas and now live in Maryland. I have over 14 years of experience as and electrician. I started out in the US Coast Guard (right out of High School) where I learned the electrical trade. I was trained in AC/DC voltages, generators, and much more. I have been working on the civilian side of the field for 3 1/2 years now. I am married with a daughter and they mean everything to me. If you have an electrical issue or want to make some electrical improvements, then I am the right guy for the job.
Lead Customer Care Representative
Customer Care Representative with 10+ years of experience solving customer inquiries and building strong customer relationships.
Purchasing Manager
My family is from Columbia, but I was raised in Maryland. I am a proud mother of a 4; 1 daughter, 2 Frenchie's, and a Chihuahua. I love adventures, traveling and spending time with my family.
Jose David
Customer Care Representative
Hi, my name is Jose David, and I am originally from Nicaragua. I am married with one son and have 8 years of experience as a customer care rep. I love spending time with my family and playing video games.

Top Licensed Electricians In Maryland

Electrical Connections, LLC has an amazing licensed electrician team on call ready to meet all your electrical needs. Since 2003 we have been the most trusted electrician service provider and have served thousands of Maryland customers throughout Montgomery County.

Our mission at Electrical Connections is to make sure our clients feel safe and comfortable in their homes when it comes to electrical safety. It is also important that we improve the lives of each of our team members.

We accomplish this by creating an environment where home electrical safety is our top priority. We provide our team members with an opportunity to grow, a chance to earn a good wage and the chance to learn trade skills that will always be sought after. This is an on-going process that we are dedicated to perfecting every day. Our main objective is to provide outstanding service that exceeds our client’s expectation while improving the professional, personal and financial lives of our team. Thank you for considering our company for your home electrical work and we look forward to earning your business and ultimately your trust!

Electrical Safety Advisor
Hi my name is Jose. I attended two Gaithersburg and Thomas Edison High Schoo of Technology. At Thomas Edison High School of Technology, I learned about electrical theory and fundamentals of the electrical trade. After graduating high school I continued my studies at Montgomery College in the electrical industry. I have many years experience in the electrical construction field and electrical service field. Working at Electrical Connections has furthered my knowledge of residential electrical systems and real world problems. I have a young daughter who is two years old and I love showing her what the world has to offer.
Electrical Safety Advisor
Hello, I am Mike and I have been an electrician for 11 years learning all sides of the trade. I am also a Certified thermographer which helps me prevent dangers from occurring for you and your loved ones. I have a 2-year-old son who I enjoy all my free time with. I am ready to help you with your electrical needs!
Maintenance Technician
Hi, my name is Edwin, and I was raised in Germantown, MD. I have always been a person with a high moral compass. I have always strived to be the best at what I do and learn something new every day. My focus is to help and educate people. I hope to keep people safe and sound. I hope to create trust and always bring a smile to my costumers.
Hi, my name is Trevor, and I am originally from Manchester, MD. I love to hunt and watch football with my family. I am a hard worker and have several years in the electrical industry. I look forward to helping you with all your electrical needs.
Guillermo P
I have about 20 years of electrical experience. I began my electrician journey back home in Puerto Rico with industrial electrical. When I came to the United States, I continued my electrical journey working on naval ships. Then I transitioned to commercial electrical and eventually ended up in residential electrical work, which is now my passion. This gives me opportunity to interact with homeowners and see the people my electrical experience is helping. I am eager to continue learning and service our community.
Warehouse Associate/Inspection Technician
Hi, my name is Paolo, and I am from Potomac MD. I have a family of 4 and a dog. I like helping people and making them laugh. I love sports, acting, and community work at my church.