Prime Contractors
Powering Projects for
General Contractors & ESCOs.
Dependable execution, expert insight, and seamless collaboration to ensure your project’s success.
Safe, Reliable & Experienced
For over 40 years, we've prioritized safety and quality in everything we do, ensuring dependable electrical systems that meet industry standards and keep your project running smoothly.
Bonded for Projects Large & Small
Whether it’s a minor upgrade or a large-scale installation, Custom Electric is amply bonded and equipped to handle Commercial projects of any size with precision and professionalism.
24/7 Emergency Support
Fast & professional emergency support anytime you need. Whether it's a power outage or an urgent electrical issue, our team is ready to restore safety and functionality to your project.
Your Trusted Electrical Partner.
At Custom Electric, we specialize in supporting prime contractors—General Contractors (GCs) and Energy Service Companies (ESCOs)—with expert electrical contracting that elevates your project outcomes.
Whether you're constructing Commercial and Industrial spaces or implementing energy-efficient systems in Institutional and Municipal facilities, Custom Electric is your dedicated, dependable subcontractor.
General Contractors.
CEC understands the fast-paced, detail-driven world of general construction. We work with you to deliver safe, code-compliant electrical infrastructure to fit your project.
Our experienced team integrates seamlessly with your project schedules, collaborates during pre-construction planning, and provides consistent field communication from kickoff to commissioning.
Services for GCs
- Ground-up Commercial and Industrial builds
- Tenant fit-ups and retrofits
- Infrastructure upgrades and expansions
- Safety, lighting, and power distribution systems
Why GCs Choose CEC
- Experienced in Commercial and Industrial markets
- Track record in tenant fit-ups and system retrofits
- Proactive scheduling and dependable execution
- Clear, coordinated communication & project documentation
ESCOs.
CEC has a deep understanding of decarbonization and energy transformation, that we can bring to the design and implementation of your next project.
With extensive experience in schools, hospitals, and Municipal buildings, we know the budget cycles, compliance requirements, and unique challenges of Institutional clients.
Services for ESCOs
- Electrification of heating and cooling systems
- Heat pump and EV infrastructure installation
- Building automation and controls integration
- Lighting and energy efficiency retrofits
Why ESCOs Work with CEC
- Expert execution of electrification initiatives
- Skilled in publicly funded and grant-based project delivery
- Collaborative approach to multi-stakeholder environments
- High-quality installation and ongoing support
Benefits of Partnering with CEC.
Whether you're building a campus or optimizing a public facility, CEC brings:
- Trusted Expertise: Licensed, seasoned professionals with a track record of excellence
- Broad Capability: From tenant improvements to full-scale energy upgrades
- Reliability: On-time, on-budget delivery with a safety-first mindset
- Partnership Mentality: We align with your goals and grow with your success
Get in Touch.
Have questions about our services? The Custom Electric team is here to help. Please fill out the contact form, and one of our experts will be in touch to discuss how we can support your needs.
Custom Electric & Communications
407 Daniel Webster Highway
Merrimack, NH 03054
603.424.7557
Send us a message
407 Daniel Webster Highway
Merrimack, NH 03054
603.424.7557
© Custom Electric & Communications, 2025