Mr. Prandoni- We reduce our duct leakage 87%! 
Nothing escaped him. He was very thorough and did an excellent job. He advised us to seal our ductwork, which he tested as “very leaky." He was there during the whole sealing process ensuring that everything went well. We reduced our duct leakage 87% and very happy with the outcome. I would highly recommend him.

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Mr. Prandoni