Hayes Insulation came out and looked at my Prairie Village ranch home that did not cool well in the summer despite having new windows and a new HVAC unit. They found that the ductwork needed sealing, and the attic needed MUCH more insulation. They also made a recommendation for another gable vent. I had them do the duct sealing, and adding insulation and I can confidently say a week in that this is the biggest change of anything I have done on my house, and worth every penny. They also were very easy to work with and scheduling through final job completion went very smoothly.