Rockweiler insulated our attic. We received multiple bids. Theirs wasn’t the lowest but it was reasonable and they came well recommended. Before blowing in the insulation, all openings to the attic including for airconditioning outlets and lights were fully insulated. The vents were all properly protected with new coverings. The employees that were sent – Aaron and Louie – were a pleasure to work with. We have had our share of lousy contractors so it was a delight to work with people who were conscientious about getting their work done properly and proud of it. I recommend them highly.