I worked with Charter Oak on replacing my furnace and central air unit. Can’t say enough good things about their service and professionalism through the entire project (initial call, inspection, sales, installation/delivery) . They were prompt, courteous, professional, efficient, the list goes on. Pricing was on par with industry standards and I will use them for any/all mechanical services moving forward. After constant sub-par experiences working with other service providers it was a much needed breath of fresh air working with Charter Oak. Highly recommend!