Top-rated electrical wiring or panel upgrade pros.

Get matched with top electrical wiring or panel upgrade pros in Greenwich, CT

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Electrical wiring or panel upgrade pros in Greenwich

Avatar for Smart Electrical Solutions, LLC
Smart Electrical Solutions, LLC
4.8(
17
)

Serving Greenwich, CT and surrounding areas

Approved

In business since 2015

Free estimates

Warranties offered

"Saulo is very personable,. intelligent, forthright and knowledgable. I would recommend him highly and would hire him again without reservation."
Kitchen Remodel
Kitchen Remodel
Kitchen Remodel
Kitchen Remodel
Kitchen Remodel

+30

Response time1 day
8 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for R.Piro Electric, LLC
R.Piro Electric, LLC
4.9(
65
)

Serving Greenwich, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Emergency services offered

"Piro Electric upgraded my 1950's 60 amp home electrical service to 200 amps. Very knowledgeable, prompt, neat, and courteous. Easy to work with. Did what they said, when they said. Would recommend them highly."
Response time1 day
3 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Newgrange Electric Inc.
Newgrange Electric Inc.
4.5(
74
)

Serving Greenwich, CT and surrounding areas

Approved

In business since 2008

Emergency services offered

Warranties offered

"As a Building & General Contractor myself Newgrange electric is one of my best electrical sub contractors. Eddie the owner is very hard working. Always reliable, extremely professional and maintains an office manager Nicole who knows what's going on, on all their projects so you always have someone to contact during business hours. Eddies crew is based of long time employees that are very knowledgeable in there work. Eddie will always get back to you even after business hours, which is not the norm for many vendors. We need more contractors like this. Joe Algeri, Orchard Builders & Construction & Skyline Plumbing & Heating."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+8

Response time2 days
1 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Antonio Ferrao Electric
Antonio Ferrao Electric
4.5(
38
)

Serving Greenwich, CT and surrounding areas

Approved

Super Service Award Winner

In business since 1989

Free estimates

Emergency services offered

"I needed a low voltage transformer upgraded and a floodlight RING camera replaced with a new one. They were easy to work with, able to fit our small job in quickly, efficient and reasonably priced."
Screwless cover plates
Pantry
Nest Thermostat
Staircase lighting
Kitchen

+52

Response time12 hrs
2 neighbors recently requested a quote
Recommended by75%of homeowners
Avatar for Mikell Electric
Mikell Electric
4.5(
28
)

Serving Greenwich, 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
Avatar for MB Electric
MB Electric
4.9(
8
)

Serving Greenwich, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Emergency services offered

"The job was to replace an old electric service panel. Matt answered any questions that I had. The work was done quickly and neatly. Communication was good. Should the need arise, I would hire him again. One picture of old panel, one picture of semi finished new panel, one picture of new breakers."
MB Industries
MB Industries
MB Industries
MB Industries
MB Industries

+46

Response time8 hrs
1 neighbors recently requested a quote
Avatar for Grimm's Electrical Services
Grimm's Electrical Services
4.9(
8
)

Serving Greenwich, CT and surrounding areas

Approved

In business since 2021

Free estimates

Offers commercial services

"Tom came on a Sunday ahead of his estimated arrival time and did a first rate job, including cleaning up the work area. Knowledgeable and congenial. Highly recommend."
Response time3 hrs
1 neighbors recently requested a quote
Recommended by100%of homeowners
...
Showing 1-10 of 250
FAQs for electrical wiring or panel upgrade projects in Greenwich, CT

Yes, a licensed electrician is essential for this project. Running an electrical service from the road to your house involves connecting to utility power lines, complying with national and local electrical codes, and safely handling high-voltage systems. 

Licensed professionals understand proper wire sizing, grounding requirements, and voltage drop calculations needed for safe installation. Most jurisdictions require permits and inspections that only certified professionals can obtain. The safety risks and potential for property damage make this project inappropriate for DIY attempts.

Overhead installations are less expensive than underground options. For a 1000-foot run, overhead service costs between $8,000 and $15,000, while underground service ranges from $10,000 to $25,000. 

Overhead lines require less labor and fewer materials since they don't need trenching or conduit. However, underground lines offer better protection from weather events and aesthetic benefits. Your decision should balance your budget constraints with long-term reliability and visual preferences.

You might need to upgrade your electrical panel depending on your power requirements. If your existing panel cannot handle the additional load from the extended service, upgrading to a 200-amp service (costing $750 to $2,000) may be necessary. 

A licensed electrician can evaluate your current system and determine if an upgrade is required. Factors include what you'll be powering at the end of the line, existing electrical demand, and whether voltage drop over the distance will affect performance.

Running electric service from the road to a house requires electrical permits from your local building department, costing between $500 and $2,000 depending on your location. You may also need excavation permits for trenching work if installing an underground service. Your utility company will have its own application process for connecting to its grid. A licensed electrical contractor can handle all the necessary permit applications as part of their service, ensuring your installation meets all local code requirements.

The Greenwich, CT homeowners’ guide to electrical wiring or panel upgrades

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