“We just had Mark and Abe Chelsvig install a Generac variable-speed whole-house generator, and highly recommend them for their knowledge and their workmanship. After we lost power for 5 straight days last year, we wanted the protection and peace of mind of a generator, but with just ¼-acre in Narberth, we did not want too much noise for ourselves or our neighbors, and we did not want it to run weekly or even bi-weekly for 10-minutes just to maintain the warranty. Abe went online and discovered that Generac had just released their new 20 kV variable-speed model, which only needs to run for 5 minutes a month, is far more quiet, and uses much less fuel. In addition, when installing the new electric sub-panel, they discovered that inside our existing electric panel there was so much rust that it posed an arcing fire-hazard, and they urged us to replace it. And like the other reviewers, they cleaned up for us every day before leaving. We highly recommend them and the Generac variable-speed generator.”

Rodger & Dana H.
Narberth, Pa

“Chelsvig Electric is a family owned and operated business. Mark Chelsvig and his son Abe worked on our house and did a wonderful job! Our house was a mess, and they really helped us get the house back up and running efficiently. We had knob and tube everywhere and the wiring was just a disaster when we first bought the place.

They were very hard working, efficient and neat and also gave us advice on other issues with the house that we were dealing with, and gave us numbers for great contractors. Also their prices are more than fair. I would definitely recommend these guys as your electricians. Service in full was top notch.”

Ms. Austridge T.
Philadelphia, PA

“Abe and Mark are great. They came on time, made great suggestions and really helped my wife and me understand what was involved in re-wiring and removing the knob and tube in our townhouse. Their price was fair, actually below the estimate we had received previously when buying/inspecting the house a few months ago. I definitely recommend them.”

Steven B.
Philadelphia, PA

“We hired Chelsvig Electric when we expanded our offices at John Neill Painting. They were able to work around our schedule with no issues and ran new lines connecting our current systems with our new space within a matter of days. They were extremely thorough and made sure everything was operating properly before closing down the job.

I have also used Chelsvig Electric in my home to update several light fixtures, install additional outlets in my kitchen, and install a fan in my hall bathroom. They were always on time, pleasant to have in my home, and cleaned up thoroughly before leaving at the end of the project. I would highly recommend them to anyone looking for a reliable electrician you can build a lasting relationship with.”

Suhaiba N.

“We hired Chelsvig Electric for a major electrical upgrade in a Bicycle Shop. They came in with a good estimate compared to 2 other electricians. The work was completed in a timely fashion and was very thorough. Abraham took time to explain all of the options from “the way I would do it in my house” down to “the easiest and cheapest” way to be safe and legal. He completely re-did the main service panel and ran new heavier gauge wire to a new sub-panel. I sleep better at night now that I know how many dangerous things he removed and fixed.”

Sam D.
Philadelphia, PA

“We hired this company after quite a few estimates. Their price was less than most others. We chose them as we felt they were the most reliable of the contractors and we got a good vibe from Mark. Now that they are done we are extremely pleased with the work. It was done in a timely manor, they kept our home clean during the renovations, there were no hiden costs, and the end result was exceptional. They even came back to hang our chandelier on only a days notice. I can’t say enough good things about this company.”

Justin S.
Philadelphia, PA


– Emergency Coverage
– Knob and Tube Removal
– Ceiling fans
– Recessed lighting
– Outdoor lighting
– Heaters
– Generator Installation
– Home Theatre System Wiring
– Flat Screen TV Installations
– Speaker Installations
– Data Wiring for High Speed
– Display/Showroom Lighting
– Installation wiring for machinery
– General wiring
– Security lighting and cameras
– Single and 3-Phase wiring


– Ardmore
– Bala Cynwyd
– Berwyn
– Broomall
– Bryn Mawr
– Chestnut Hill
– Devon
– Gladwyne
– Haverford
– Main Line
– Media
– Merion
– Narberth
– Newtown Square
– Overbrook Farms
– Paoli
– Philadelphia
– Penn Valley
– Penn Wynne
– Rosemont
– St. David’s
– Strafford
– Villanova
– Wayne
– Wynnewood

Additonally, we are fully licensed to work in both New Jersey and Delaware.

Call Us Today