They installes a gas dryer the day before Thanksgiving, the next day there was a strong gas smell in the laundry room; I called guardian plumbers for them to repair the gas leak (because they installed the dryer), I was told there was a $120.00 charge because it was a holiday, I told them that it was their responsability because they did a bad job of installing the dryer. I called the gas company and they responded within 30 min.
So, NO I will never recomend Guardian Plumbers!