Need DIY insulation work for a small attic space

I'm looking for a reliable tradesperson to handle some miscellaneous insulation tasks in my home. The project involves inspecting a small attic, sealing gaps, and adding insulation where it’s missing or compressed. Preference for using standard mineral wool or foam boards, with proper ventilation and fire safety in mind. I’d like someone who can advise on improving thermal efficiency and can complete the work within a single session. Tools and materials to be provided by the tradesperson. Please include a short assessment at the start and a rough timeline for the job.