Need miscellaneous insulation work for home project

I'm looking for a skilled tradesperson to handle a miscellaneous insulation task in my home. The job involves assessing an area, sourcing the right materials, and applying insulation where needed to improve energy efficiency. Preferences: use sealant or foam where appropriate, ensure proper ventilation, and keep the workspace tidy. I’d appreciate clear advice on the best insulation option for the space and a rough timeline. Access is straightforward, and I can accommodate a daytime visit. Please provide a rough estimate and any preparation notes I should complete before you arrive.