Trusted Electrical Experts Serving
Fairfield County for Over 25 Years

Residential and commercial electrical solutions delivered with precision, safety, and lasting reliability.

OVER 25 YEARS OF QUALITY WORKMANSHIP

  • Founded in 1999, Kostantino Electric is a family-owned electrical contractor serving residential and commercial clients throughout Fairfield County. What began as a commitment to reliable, high-quality electrical service has grown into a trusted partner for homeowners and businesses alike. With decades of experience and a reputation built on precision and professionalism, the focus remains the same today: delivering electrical solutions that perform reliably and stand the test of time.

  • Integrity, accountability, and craftsmanship guide every aspect of the work. Clear communication, attention to detail, and respect for clients’ time and property are fundamental. By maintaining the highest professional standards and focusing on dependable results, lasting relationships are built through trust, consistency, and quality.

  • Every project begins with a clear understanding of the space, the requirements, and the expectations. Electrical work is planned carefully, executed precisely, and delivered with an emphasis on safety, efficiency, and long-term performance. From initial consultation through completion, each detail is considered to ensure solutions that function seamlessly and integrate naturally into the home or business they serve.

Our Services

From small service upgrades to full residential renovations and commercial installations, we provide comprehensive electrical solutions designed for safety, efficiency, and long-term performance.

  • A person wearing a gray glove with the brand 'TEN' is holding a black cable with three exposed colored wires (blue, yellow, brown). The person is wearing an orange work vest over a red and black plaid shirt.

    Electrical Service & Repair

    • Electrical troubleshooting and diagnostics
    • Emergency electrical repairs
    • Code compliance corrections
    • Outlet, switch, and wiring repairs

  • A close-up of a single electrical outlet mounted on a textured light teal wall.

    Installation & Replacement

    • New electrical installations
    • Fixture and device replacements
    • Appliance and equipment wiring
    • Remodel and renovation electrical work

  • Electrical control panel with circuit breakers, wiring, and labels.

    Panel Upgrades & Replacement

    • Electrical panel upgrades
    • Panel replacements and reconfigurations
    • Circuit additions and load balancing
    • Code-compliant safety upgrades

  • Multiple electric meters mounted on a gray panel, arranged in rows.

    Service Upgrades & Replacement

    • Service entrance upgrades
    • Meter and service equipment replacement
    • Capacity upgrades for modern electrical demand
    • Utility coordination and permitting

  • White electric car plugged into a charging station outside a modern building with large glass windows.

    EV Charger Installation

    • Residential EV charger installation
    • Commercial EV charging solutions
    • Load analysis and panel preparation
    • Code-compliant and future-ready installations

  • A Generac home backup generator installed on a landscaped yard in front of a house with a porch, lit exterior lights, and large windows.

    Generator Installation

    • Standby generator installation
    • Portable generator connections
    • Automatic transfer switches
    • Backup power solutions for homes and businesses

  • Nighttime scene of a lit swimming pool surrounded by lush plants and trees, with a modern building in the background.

    Exterior Landscape Lighting

    • Architectural and landscape lighting installation
    • Pathway, driveway, and garden lighting
    • Pool and outdoor living area lighting
    • Energy-efficient LED lighting solutions

  • A landscaped backyard patio at dusk with a lit fireplace, outdoor seating, pathway lights, and a two-story house with large windows and warm interior lighting.

    Custom Lighting Design & Build

    • Custom-built lighting design plans
    • Architectural lighting layouts
    • Fixture selection and placement
    • Integration with outdoor and interior spaces

  • A person wearing work clothes on a ladder with boxes and tools in a workshop or storage area, under hanging ceiling lights.

    Residential Electrical Services

    • Whole-home electrical solutions
    • New construction and renovations
    • Smart home and automation wiring
    • Safety inspections and upgrades

  • Interior of a modern restaurant or cafe with wooden tables and chairs, some illuminated pendant lights on the ceiling, a staircase on the right side, and a person sitting at a table using a laptop.

    Commercial Electrical Services

    • Office, retail, and mixed-use properties
    • Electrical maintenance and service contracts
    • Lighting retrofits and efficiency upgrades
    • Tenant fit-outs and build-outs

What Sets Us Apart

Over

25

Years of Experience

Delivering reliable electrical solutions across residential and commercial projects

Trusted Electrical Experts Since 1999

Responsive Service You Can Depend On

Modern Solutions for Today’s Power Demands

A Reputation Built on Long-Term Client Relationships

Clean, Detail-Oriented Craftsmanship

Efficient Project Management & Timely Completion

Fully Licensed, Insured & Code-Compliant Work Done Right the First Time

What Our Customers are Saying

Testimonials

Proudly Serving Leading Builders & Businesses in Fairfield County

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Let’s Power Your Next Project with Precision and Reliability

Our licensed and experienced electricians provide dependable, high-quality electrical services for homeowners and businesses throughout Fairfield County, Connecticut.