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Trusted Electrician Serving Waterville, ME.

Klein Electric LLC is a Maine-based electrical contractor serving communities from Kittery to Caribou, specializing in panel upgrades, ADU/Tiny Homes, New & Old Construction, EV charger installation, and generator work.

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Licensed, insured, and review-backed

Statewide

Coverage Across Maine

2

Brothers, One Company

450+

Happy Customers

Home hero image 1 - Klein Electric LLC in Waterville, Maine

Google Reviews

5.0

5 reviews

Highly recommend Klein electric! They are professional and know their stuff. No run around with these guys. They are also very responsive getting back to you.

Emma Rushton

Our Services

Full-Service Electrical Work Across Maine

Klein Electric LLC handles residential and commercial electrical projects of all sizes, from lighting upgrades to complete rewires, anywhere in Maine.

Panel Upgrade

We replace undersized or outdated electrical panels with properly sized service to handle modern loads and meet current code standards.

Panel Upgrade

EV Charger Installation

A dedicated Level 2 charging circuit gets your electric vehicle charged overnight without stressing your existing electrical system.

EV Charger Installation

Generator Installation

We size and install standby or portable generators so Maine homes and businesses stay operational when power outages hit.

Generator Installation

Whole Home Rewire

Aging or unsafe wiring gets replaced completely, bringing older homes up to modern safety and capacity standards.

Whole Home Rewire

ADU and Tiny Home Electrical

Accessory dwelling units and tiny homes need purpose-built electrical systems, and we handle the full scope from panel to fixtures.

ADU and Tiny Home Electrical

Lighting Upgrade

From recessed lighting to exterior fixtures, we upgrade residential and commercial lighting for better efficiency and appearance.

Lighting Upgrade

About Us

A Maine Electrical Company Built on Family Values

Klein Electric LLC was founded by two brothers with a shared commitment to craftsmanship and doing the job right. Based in Waterville, Maine, we serve residential and commercial customers across the state, from Kittery to Presque Isle, with electrical work, controls, security systems, camera systems, and fire alarms.

Years Badge
Crew
Install

Our Work Portfolio

Our Projects

Recently completed projects in Waterville, Maine.

Generator Installation in Augusta, ME
Completed work

Generator Installation in Augusta, ME

Installed a standby generator for a commercial property in Augusta, including transfer switch wiring and utility coordination.

EV Charger Installation in Freeport, ME
Completed work

EV Charger Installation in Freeport, ME

Ran a dedicated 240V circuit from an upgraded panel to a garage-mounted Level 2 EV charger for a residential customer.

Whole Home Rewire in Waterville, ME
Completed work

Whole Home Rewire in Waterville, ME

Replaced original knob-and-tube wiring throughout a multi-story older home, adding grounded circuits and a new service panel.

Testimonials

What Customers Say

Recent feedback from customers who trusted us with their projects.

5.0 • 5 reviews
Google ReviewsLeave us a review

Very happy with the service from Klein Electric LLC. The team was friendly, on time, and did quality work at a fair price. Would definitely use them again! Give them a call for any electric problem.

Owner reply

Bon, really glad to hear the visit went smoothly from start to finish. Showing up on time and keeping the pricing fair…

Bon profile

Bon

2026-05-21

KLEIN ELECTRIC LLC are very thorough and helpful they are also professional, reliable, and knowledgeable electricians. They completed the job efficiently I highly recommend Klein Electric LLC you won’t regret it.

Owner reply

Claire, glad the job came together the way it should. Thorough and efficient is exactly what we aim for, so it means a…

Claire T. profile

Claire T.

2026-05-21

5 stars! Klein Electric was great to work with. They were professional, easy to communicate with, and showed up when they said they would. The work came out great, and you can tell they care about doing things the right…

Owner reply

Appreciate you taking the time to write this! Showing up when we say we will and communicating clearly along the way…

j camp profile

j camp

2026-05-21

Contact us

Contact Klein Electric LLC

Reach us by phone at (207) 250-4403 or email office@kleinelectric207.com. We serve residential and commercial customers throughout Maine and respond to all inquiries promptly.

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    Klein Electric LLC is a Maine-owned electrical contractor serving homes and businesses statewide, from panel upgrades and whole home rewires to EV chargers, generators, and security systems.

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    Klein Electric | Electrician in Waterville, Maine