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TRUSTED BY MILLIS, MA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon1.2k+
    Verified electrical services reviews

Find Electricians in Millis

Avatar for T & G Electrical
T & G Electrical
4.9(
174
)

Serving Millis, MA and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

"George and his team is very helpful. Their work was done fast and professionally. George gave me very seasonable price. I will hire them again if I need any electrical help."
Local Owner-Operator George Boukouvalas
Services Offered
Residential Electrical Services
Commercial Electrical Services
General Electrical Troubleshooting & Repairs

+23

Response time1 day
3 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for CL Electric Inc
CL Electric Inc
5.0(
38
)

Serving Millis, MA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"Chris has been to my home twice. The first time was to trouble shoot a circuit breaker that kept tripping, and he was able to isolate the problem to a faulty circuit breaker. The second time was to install a bathroom fan. Both times his work was great, and he was pretty easy to get ahold of, and was good about scheduling. I will definitely be returning to Chris again in the future for my electrical needs, and would absolutely recommend him to anyone else looking for an electrician."
Before
Before
Before
Before
Before

+69

Response time2 days
Recommended by92%of homeowners
Avatar for D.E.S. Systems, LLC
D.E.S. Systems, LLC
4.9(
35
)

Serving Millis, MA and surrounding areas

Approved

In business since 1986

Free estimates

Emergency services offered

"Steve is a highly professional electrician that I was fortunate enough to find for the many updates and improvements my mid-century home needed. He's done work in my home several times this year and has made some amazing improvements. His work is neat, clean and affordable. I feel confident that I have found my go-to guy for all my electrical needs."
Response time1 day
3 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Champion Electrical Services Inc
Champion Electrical Services Inc
5.0(
54
)

Serving Millis, MA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

At Champion Electrical Services, we believe homeowners deserve better. No more no-shows, rushed work, or upsells you don't need. We built this company to do things right - with respect, craftsmanship, and pride. Every project is treated like it's being done in our own home: clean, code-compliant, and built to last. Whether you need a panel upgrade, EV charger, generator, or quick repair, we show up when it counts and earn your trust every time. \nLicensed, insured, and proudly serving MA & RI. \nWhen the lights go out, don't call just anyone. Call the Champ.\n\n(774) 331-3500 \nCalltheChamp.com \[email protected]

My jobs
My jobs
My jobs
My jobs
My jobs

+17

238 neighbors recently requested a quote
Avatar for Ryan Cassidy
Ryan Cassidy
5.0(
11
)

Serving Millis, MA and surrounding areas

Approved

In business since 1990

Free estimates

Emergency services offered

"Highly recommend Ryan for electrical work. He guided the design, installed everything quickly and managed the inspections. It was great working with him and we love our new kitchen!"
Garage Sub Panel
Garage Circuit Lighting/Receptacles
Garage Circuit Lighting/Receptacles
Garage Circuit
Garage Circuit

+73

Response time2 days
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Joseph Jackson
Joseph Jackson
5.0(
56
)

Serving Millis, MA and surrounding areas

Approved

In business since 2022

Free estimates

Warranties offered

"Updated service and installed some recessed lighting. Joe was so easy to work with. Great communication and trustworthy - very very fair price. Will use him again for future electrical work."
Response time2 hrs
Response rate94%
Recommended by96%of homeowners
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Electrical questions, answered by experts

When converting a standard 120-volt outlet to a 240-volt outlet, the only components you can typically reuse are the existing electrical box and the hole in the wall. Everything else—including the wiring, breaker, and receptacle—should be replaced to ensure both safety and efficiency. Appliances designed for 240 volts have different plug configurations that won’t fit into a standard 120-volt outlet, making it necessary to install a compatible 240-volt receptacle. This design helps prevent overloading or underloading the power available to any one outlet or circuit.

To check if doorbell wires are live, use a non-contact voltage tester. Hold the tester near the wires; if it lights up or beeps, the wires are live. Always ensure the power is off at the breaker box before handling any wiring. If you don't have a voltage tester, consider getting one or consulting a professional to ensure safety.

How far you can run underground electric depends on the wire gauge (generally AWG) and the circuit voltage. Too much voltage drop in an electrical circuit can negatively affect performance, so the smaller the voltage drop, the better. Ideally, it shouldn't exceed 3%. The smaller the wire and the longer the run, the more significant the voltage drop. 

For example, with a 120-volt circuit, you can run 60 feet of 12 AWG cable without losing more than 3% voltage. With a 240-volt circuit, you can run 120 feet of 12 AWG wire while maintaining a voltage drop of 3% or less.

A larger heater requires a larger breaker—unless there’s one already installed. The longer answer to this question is more nuanced. Do you place demands on the heater at the same time as running other heavy-duty appliances like ovens and washing machines? Do you live in an older home that may not have considered the higher electrical demands we have now? Breakers need to be sized at 125% of the load. To find that load, you should call a local electrical pro.

The answer depends on your needs and the availability of your current electrical panel. If you’re hoping to seriously up the power in your detached living space, you may also need to consider increasing the power of the amp your home runs on (from 100-amps to 200-amps, for example).

The Millis, MA homeowners’ guide to electrical services

From average costs to expert advice, get all the answers you need to get your job done.