Looking for the best price to cost ratio insulation contractors Evanston

Hi. I'm looking for the best price-to-cost ratio insulation contractors Evanston. I've bought a new house at the beginning of this year but it turned out that the dealer did hide some imperfections. I had to repair everything and one of the things that is left is insulation. My budget is low so I'm looking for a company that isn't very expensive with their services. My colleague recommended me this company https://smartinsulationchicago.com/ but I'm open to your advice.