Panel upgrades
100, 200, and 400-amp service work. Permitted, inspected, drawings filed with the city.
Licensed master electrician / NEC standards / Permits pulled
Powerup.
Wiredright.
From outlet to grid.
Residential, commercial, and industrial electrical work in Cos Cob. Tested. Tagged. Trusted. We file the drawings, we pull the permits, and we sign the work. Up-front pricing, no exceptions.
Bonded & insuredNEC certifiedBBB A+ ratedCos Cob, Connecticut
Sheet 01 / Hero
- License
- Master · Bonded
- Coverage
- Cos Cob, Connecticut
- Hours
- Mon-Sat
- After-hours
- On call
Feature any certifications you want here
04Services on filerev. 2026-05 / sheet 04 of 12
What we sign off on,
to spec, every time.
From a single GFCI to a 400-amp commercial service, every job is permitted, drawn, and inspected. Not a side-hustle. A trade.
On the bench
Master electrician on staff.
Every job led by a licensed master. Every drawing signed. Every permit on file.
Lighting installation
Recessed, pendant, landscape, low-voltage. Switch logic mapped, scene plans available.
Outlet & switch repair
GFCI, AFCI, dedicated runs. Replaced or added without tearing up the drywall.
EV charger installation
Level 2 dedicated 240V install. Load calculated, run clean, dialed in.
Generator installation
Standby and portable. Transfer switch, ATS, battery backup. Tested under load.
Electrical inspections
Pre-purchase, insurance, NEC compliance. Written report, photo log, prioritized fixes.
Emergency service
After-hours response. Master electrician on call. Quoted before we drive over.
Smart home wiring
Smart switches, low-voltage runs, whole-home rewires. Permits pulled, plans on file.
Not seeing what you need? Tell us what's on the drawing.
Submit a ticket05The crew on callsigned by master / on file
We sign the work.
We pull the permits.
We answer the phone.
R M Harris Electrical Contractors is the licensed electrical service homeowners, builders, and property managers in Cos Cobcall when they want it done to spec, drawn up, signed off, and explained in plain English.
Our master electrician leads every project. Our trucks roll with the parts most jobs actually need. Our quotes hold. And when we open a service and find something the previous crew left undone, we'll show you the photos before we touch a wire.
Homeowners and small business owners needing licensed electrical work, often urgent.
Bonded, insured, signed
Every visit, every drawing. Permits pulled where required, no exceptions.
Master on staff
The person who shows up has the license to scope it, not just guess.
Up-front. On time.
We answer the phone. We tell you the price. Then we get on it.
R M Harris Electrical Contractors / Cos Cob, Connecticut
06Four standardsheld on every job / no exceptions
Four standards. We hold all four
on every single ticket.
Licensed & insured
Every electrician on the truck is fully licensed, bonded, and insured for your protection.
After-hours response
Sparking outlet at 3am? We pick up. Real people. No call center halfway across the country.
Up-front pricing
You see the price before we open the wall. No surprise fees. The quote is the bill.
Master on staff
Our work is led by a master electrician. The hard problems get scoped, not bandaged.
07From the fieldrecent install / photo log
Drawn up. Pulled clean.
Inspected. Signed off.
Recent install / Cos Cob, Connecticut
Service upgrade + EV charger
Permitted, inspected, drawings on file with the city.
08On the recordgoogle verified / homeowners
Real Google reviews
from real homeowners.
4.9/5
Based on 13 Google reviews
“I leave maybe 1 review a year, and this just has to be said. This company and their entire staff are outstanding! I can sincerely say, everybody from Mary taking my calls, Rick working his magic, an”
Nabil West
2 years ago
“Matthew from RM Harris did an excellent job with installing a transfer switch at my home. There was also some additional work which involved running a new line to my garage. The work was very tidy and”
Rakesh Balasubramanian
3 years ago
“I used R.M. Harris a few weeks ago to fix an outside outlet near the pool that had stopped working. Eddie Thivierge got us a swift appointment and gave us a convenient 2-hour window for his arrival. H”
STANLEY Vyner
5 years ago
“I called with a fairly minor garbage disposal issue, not exactly a giant electrical emergency. They noted they were super busy, but maybe could have someone available at the end of the day, as they a”
Chris L
5 years ago
Service area
Areas we service.
(e.g.)Example areas only. List any cities, towns or zones you actually serve here. You choose the coverage.
- City, State
- City, State
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- City, State
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- City, State
- City, State
- City, State
- City, State
- City, State
- City, State
- City, State
- City, State
- City, State
- City, State
- City, State
- City, State
- City, State
- City, State
- City, State
09Submit a ticketfree quote / no obligation
Tell us what's on the drawing.
We'll scope it straight.
File a ticket and the master electrician on duty will read it before we call you back. No call center. No bait pricing. Just a real conversation about what your home or business needs.
- Reply within the hour during business hours
- Master electrician scopes every ticket
- Up-front pricing. The quote is the bill
After hours / on-call
(203) 661-1887
When the lights keep flickering
After hours?
You still call us.
We answer the phone. Master electrician on call. Trucks loaded for after-hours response across Cos Cob and the surrounding area.
Licensed master electrician / Bonded & insured / After-hours response
11Get on the schedulereach the office
One call gets a real
licensed electrician.
When we're open
- Mon-Fri 8:30am-4pm
- Sat-Sun Closed
Send us a note
Not an emergency? We'll get back to you within one business day.