Edmundson Electrical has invested in three Amperas, the extended-range electric vehicle, from Vauxhall.
Jo Ellis, branch manager at Edmundson Electrical's Barking office, has completed his first 4,000 miles in his Ampera.
He said: "I rely on my car for work and cover relatively high mileage each month including a daily commute of over 35 miles from my home to the office.
"I get all of the benefits of an electric car but with none of the disadvantages such as range-anxiety. It feels just like a normal car."
As part of Edmundson's commitment to the environment, Elilis has had electric vehicle charging facilities installed at both his home and his work place.
Ellis's Ampera, which will cover around 100,000 miles over its four years on the company's fleet, has been joined by the arrival of the second Ampera, which will be driven by Danny Fegan, branch manager of the St Helen's office.
They will shortly be joined by a third Ampera at the Twickenham branch.
"Colleagues and friends have also commented on how smooth and quiet the electric motor is and were surprised that it feels like a normal car,” Ellis added.
“I sometimes need to do a 500-mile trip in one day. Long journeys are effortless, comfortable and relaxing, and the interior is very refined."