Business Details
Emergency
services
Trusted Electrical Contractors in Nashua, NH
Stellos Electric has been a leader in the electrical contracting industry for over 60 years. Our commitment to quality work spans residential, commercial, and industrial projects, with expertise in design/build services, new construction, and 24-hour emergency support. We serve Southern New Hampshire and Northern Massachusetts, delivering innovative solutions for electrical systems, lighting design, and fire/security alarms. Our team combines longevity with modern industry knowledge to meet client needs efficiently. Recognized as one of the region's largest and most prestigious contractors, we prioritize customer satisfaction through skilled execution and reliable service.Our 24/7 availability ensures clients receive timely assistance for critical electrical issues. From concept to completion, we handle projects ranging from small renovations to multi-million-dollar developments. Our leadership team brings decades of collective experience, ensuring every project aligns with evolving construction standards. We maintain transparency in operations while fostering trust through consistent, high-quality results.
Services
Design/Build Services
New Construction
Lighting Design
Generators
Communications Cabling
24 Hour Service Calls
Fire & Security Alarms
Bucket Truck Services
Industrial Electrical Systems
Commercial Electrical Systems
Highlights and features
- We offer 60+ years of electrical contracting experience across diverse sectors.
- Our team provides 24/7 emergency service for critical electrical needs.
- We specialize in complex design/build projects from concept to completion.
- Our regional expertise covers Southern New Hampshire and Northern Massachusetts.
- Recognized as one of the area's largest and most trusted electrical contractors.
Services
Design/Build Services
Our design/build electrical services create integrated systems from initial concept through final installation. We collaborate directly with clients during planning phases to ensure optimal functionality while maintaining budget constraints. This comprehensive approach covers wiring infrastructure, power distribution, and advanced automation systems for modern facilities.
24 Hour Service Calls
Critical electrical issues receive immediate attention through our 24/7 service team. Trained technicians respond promptly to commercial, industrial, and residential emergencies, minimizing downtime and restoring safe operations. Our rapid response capability ensures business continuity and residential safety during unexpected outages or equipment failures.
Lighting Design
We develop customized lighting plans combining energy efficiency with aesthetic requirements. Our CAD-based designs optimize natural and artificial light integration for commercial spaces, industrial facilities, and residential properties. Solutions include daylight harvesting systems, LED retrofits, and code-compliant emergency lighting configurations.
New Construction
Electrical infrastructure installation for new commercial and industrial developments forms a core part of our operations. We coordinate with general contractors to implement power distribution, HVAC controls, and technology-ready wiring in accordance with local codes. Our experience spans healthcare facilities, educational institutions, and retail complexes.
Fire & Security Alarms
We install and maintain advanced fire detection and security systems incorporating the latest technology. Our solutions include networked smoke detection, access control systems, and integrated security monitoring. Regular maintenance contracts ensure ongoing compliance with safety regulations while protecting property and occupants.
People
Alyson Stellos-Hartsock
President
Leading the company's strategic direction with decades of industry experience, ensuring continued growth while maintaining core values of quality and customer service.
David Hartsock
VP, Project Manager
Overseeing project execution with technical expertise, ensuring timely delivery of complex electrical systems across commercial and industrial sectors.
Jeffrey Knight
Chief Financial Officer
Managing financial operations with a focus on sustainable growth and investment in cutting-edge electrical technologies.
Conor Smith
Service Manager
Coordinating emergency response teams to maintain 24/7 service reliability for residential and commercial clients across the region.
Craig Proulx
Chief Estimator
Providing accurate project cost assessments with specialized knowledge of evolving electrical code requirements and material specifications.
Questions
What electrical services do you offer?
We provide full-service electrical contracting including design/build, new construction, lighting systems, 24-hour emergency repairs, and fire/security installations.
Do you provide emergency electrical services?
Yes, our 24/7 service team responds immediately to urgent electrical issues for residential, commercial, and industrial clients.
Which areas do you serve?
We operate throughout Southern New Hampshire and Northern Massachusetts, covering both urban and rural locations.
How experienced is your team?
With over 60 years in business, our electricians and project managers bring extensive expertise across all electrical system types.
Can you handle large-scale projects?
Yes, we've completed multi-million-dollar projects including hospitals, educational facilities, and commercial developments.
Do you work on residential projects?
We handle residential electrical needs ranging from small renovations to complete new home constructions.
