About Me

Hi, I'm Andrew Ells-O'Brien, a fully licensed Massachusetts Journeyman Electrician proudly serving Chelmsford and the surrounding communities. I specialize in residential electrical work, helping homeowners improve the safety, reliability, and convenience of their homes with quality workmanship and honest advice.

Electrical work is more than just my profession—it's something I genuinely enjoy. Every home is different, and I take pride in solving problems, finding practical solutions, and completing every job as if I were working in my own home. Whether it's troubleshooting an electrical issue, replacing outdated wiring, upgrading a service panel, installing new lighting, or adding outlets where you need them most, my goal is to provide work that is safe, code-compliant, and built to last.

Experience You Can Trust

With years of hands-on experience in residential electrical work, I've worked on everything from historic New England homes to modern construction. Older homes are a particular passion of mine because they often present unique challenges that require knowledge, patience, and careful planning.

I understand that inviting someone into your home requires trust. That's why I believe in clear communication, arriving on time, treating your home with respect, and explaining your options before any work begins. I never recommend work that isn't necessary, and I'll always help you choose the solution that best fits your home and your budget.

Teaching the Next Generation of Electricians

In addition to serving homeowners, I'm an Instructor at the Woburn campus of The Peterson School, where I teach Journeyman Electrician licensing courses to apprentices preparing for the Massachusetts Journeyman Electrician exam.

Teaching future electricians is one of the most rewarding parts of my career. It allows me to share real-world experience while helping students understand the National Electrical Code (NEC), safe installation practices, and professional workmanship. Teaching also keeps me up to date with the latest code changes and industry standards, knowledge that directly benefits every customer I work with.

Whether I'm teaching in the classroom or working in your home, my commitment is the same: perform safe, high-quality electrical work and explain it in a way that's easy to understand.

Why Homeowners Choose Me

When you hire me, you're working directly with a licensed electrician who genuinely cares about doing the job right. My focus is on building long-term relationships by providing dependable service, quality craftsmanship, and honest recommendations.

Homeowners appreciate that I:

• Perform work that meets or exceeds National Electrical Code requirements.

• Explain electrical issues in plain language without confusing technical jargon.

• Respect your home and leave the work area clean.

• Offer practical recommendations based on your needs—not high-pressure sales.

• Take the time to answer your questions and make sure you're comfortable with the work being performed.

• Believe that no job is too small. Whether you need a single outlet replaced or a complete electrical upgrade, every customer receives the same level of care and attention.

Proudly Serving Chelmsford and Surrounding Communities

I'm proud to serve homeowners throughout Chelmsford, North Chelmsford, Westford, Carlisle, Littleton, Billerica, North Billerica, Tewksbury, and other nearby communities throughout Middlesex County.

If you're looking for a licensed residential electrician who values quality, safety, and exceptional customer service, I'd be happy to help with your next electrical project.

Thank you for visiting my website. I look forward to earning your trust and helping make your home safer, more reliable, and ready for the future.