The mowers are powered by propane, instead of gasoline. It's making a big difference. Brown says, "there's no smoke, no fumes that are harmful to plants and animals and people."
The company was planning to buy new mowers this year. When they started researching mowers, they learned there were better options out there.
"It's a cleaner burning fuel that's going to be abundant in the future and with the price of gasoline fluctuating the way it was, when your running this many mowers a week it was a cost savings issue with us as well," says Brown.
One reason why a switchover like this is so important is because traditional gas powered lawnmowers make up 5% of the country's overall pollution.
Brown says, "we were told when we bought the machines that we were the first in the northeast to go all green on our lawnmowers."
They've also added some battery powered trimmers to their fleet.