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4.7

(546 reviews)

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Verified Reviews for Electrical Service pros in Cos Cob, CT

*The Angi rating for Electrical Service companies in Cos Cob, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Electrical Service needs.

*The HomeAdvisor rating for Electrical Service companies in Cos Cob, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Electrical Service needs.

Last update on March 04, 2026

Find Electricians in Cos Cob

Avatar for R.Piro Electric, LLC
R.Piro Electric, LLC
4.9(
65
)

Serving Cos Cob, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Emergency services offered

"Excellent service and excellent communication. They made it clear what they needed and the time it would take and it was spot on. In addition, Robert and his team were friendly and took that extra step to make it a worthwhile relationship. We would recommend R. Piro Electric to everyone we know."
Response time1 day
3 neighbors recently requested a quote
Recommended by89%of homeowners
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Avatar for Mikell Electric
Mikell Electric
4.5(
28
)

Serving Cos Cob, CT and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"Spencer was phenomenal! GREAT to work with. Very quick email reply to original request. Reasonable rates and he did a great job. Great service too!!! Thanks Spencer for the fiber optic wiring. Will use again. Definitely recommend!"
Response time3 days
18 neighbors recently requested a quote
Recommended by84%of homeowners
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Avatar for FO Electric LLC
FO Electric LLC
5.0(
6
)

Serving Cos Cob, CT and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"These are professional people and very friendly. They do exceptional work. This is my second time using their service....and I'd I ever need any electrical services in the future these would be who I could call first."
Response time1 day
5 neighbors recently requested a quote
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Avatar for West Electric, LLC
West Electric, LLC
4.8(
53
)

Serving Cos Cob, CT and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"West Electric was tremendous. They were on time and fast and they followed up with the building inspector"
FINAL PROJECT / NICE AND CLEAN
IN WITH THE NEW SMART PANEL
OUT WITH THE OLD
CREW HARD AT WORK
EV Charger Install

+12

Response time2 days
73 neighbors recently requested a quote
Recommended by95%of homeowners
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Avatar for St. Lawrence Electric
St. Lawrence Electric
5.0(
6
)

Serving Cos Cob, CT and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"Kevin was great. I called him with a few questions about the process and he was able to answer them quickly and accurately. He was also able to schedule me and get the job done quickly. I would highly recommend St. Lawrence Electric."
Chargepoint Charger
Emporia Charger
Tesla Charger
Response time2 hrs
Response rate100%
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Avatar for Extel Communications, Inc.
Extel Communications, Inc.
5.0(
41
)

Serving Cos Cob, CT and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"Extel does an excellent job. We have been customers for many years and recommend them highly. Sal and Peter are knowledgeable and helpful. Very quick response time. True partners."
Long Range WiFi Repeater
Hikvision Bullet Camera
Hikvision Dome Camera
Hikvision Bullet Camera
Hikvision Dome Camera

+1

Response time3 hrs
Response rate98%
3 neighbors recently requested a quote
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Avatar for Mario's Electrical Technologies LLC
Mario's Electrical Technologies LLC
5.0(
3
)

Serving Cos Cob, CT and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Great overall experience. Job was done quickly and professionally with great customer service. Would definitely recommend for any type of electrical work, big or small."
Panel Upgrade(400 Amp)
Panel Upgrade(400 Amp)
Panel Upgrade(400 Amp)
Panel Upgrade(400 Amp)
Panel Upgrade(400 Amp)

+3

2 neighbors recently requested a quote
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Electrical questions, answered by experts

A gas stove doesn't always need a dedicated circuit. Unlike an electric range, which uses 240 volts and requires a 240-volt receptacle, a gas stove only uses 120 volts. In some cases, your electrician will need to replace the existing two-pole circuit breaker with a single-pole circuit breaker as well as swap out the existing 240-volt receptacle with a 120-volt replacement.

Volts and watts aren’t directly convertible units—they measure different aspects of electricity. Volts measure electrical potential, while watts quantify the power. The relationship between the two is defined by the equation: Power (watts)= Voltage (volts) x Current (amperes). In other words, the product of volts and amps results in watts, but there is no fixed conversion of volts into watts.

When power is restored to your home, the transfer switch will return to utility power after about 10 seconds. Your generator will then run for a few more minutes to cool down before automatically shutting itself off. In most situations, your home will stay powered by the generator for at least five minutes, even after your power comes back on.

Yes, you can use a 3/0 AWG wire for a 200 amp service, but only if it is made of copper, as 3/0 copper wire has an allowable ampacity of 225 amps. If you are using aluminum or aluminum copper-clad wire, you need to use at least 4/0 AWG.

If you have a tank-type electric water heater, it runs regularly to keep the water at the desired temperature. If you live in a home where you don’t use much hot water, it could seem wasteful to run power to heat water that you’re using infrequently. You could save some power by using a smaller tank, insulating the tank, or lowering the temperature of the water heater.

The Cos Cob, CT homeowners’ guide to electrical services

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

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