Ductworks was recommended by Precision after we had a new furnace and A/C installed. Felipe was on time, friendly, explained the process, was tolerant of our inquisitive cats, and for such an invasive/noisy procedure, he really caused minimal disruption. My husband and I both work from home and we managed to continue as Felipe did one area of the house at a time. He didn't leave without checking we got our questions answered and showing us the before and after pictures. I feel much better about breathing our air now!