In Alhambra, building permits come from the city's Building Division, and you can call them to ask whether your job needs one. Their list names roofing, remodeling, heating and electrical work but doesn't call out insulation on its own, so we check your address with them before anything else, and when a job calls for a permit we take care of that step before work starts. If plan review is part of it, a city overview with no date on it gives two to four weeks for that review, which is usually what sets the start date. Any contractor working here needs a city business license as well as a state contractor license, so it's fair to ask to see both. We're licensed and insured.
The price here turns on what has to happen before new insulation goes in, such as how much old material comes out, how many gaps need sealing, how many inches are already up there and how easy the hatch is to get through. The schedule turns on the permit check and on whether removal comes first, and I write that order down at the estimate so you can see it. It's a short drive up from East Los Angeles, and we do the same attic work next door in Monterey Park and down in Huntington Park.