I cannot recommend Castle Heating & Air highly enough. Richard and his team just installed a 3-ton Bosch HVAC system, including brand new duct work with seven registers, compressor/heat pump, pad and attic-mounted air handler at my 1950-built house. They also installed a Mitsubishi ductless mini-split system in a part of the house where duct work could not be run. The entire job took a week, and work commenced within two business days of signing the quote.
They couldn’t be more pleasant to work with and their workmanship was top notch. They also kept the entire house clean as they went, even when cutting holes in the ceiling for the air return and registers. Castle was the most competitive price I got from among five different companies as well, including Costco. I would hire them again without hesitation.