What we see most around here is the summer sun baking the attic, upstairs rooms that run hot, floors over crawl spaces that run cold in winter and older attics where the insulation has settled thin. We're based in Lubbock and do the same work across the city and the cities around it, including Wolfforth, Slaton, Levelland, Plainview, Littlefield and Brownfield.
The City of Lubbock requires a permit before code-regulated building work starts, and its remodeling list names structural, electrical, plumbing and mechanical changes without mentioning insulation, so check with the city at 806-775-2087 or 806-775-3155 if you have a permit question. When a job needs a permit, we get it from the city and handle the paperwork, and when we aren't sure, we call the city's building office before we start. Texas doesn't license building contractors, so the city has them register with its Building Inspection Department, and it registers those who show a $100,000 commercial general liability policy or file a $20,000 compliance bond. Asking a contractor for proof of that registration tells you both.