Need Assistance with Home Insulation Improvements

I'm looking for a skilled professional to help improve the insulation in my home. The main focus will be on sealing drafts around windows and doors, as well as adding insulation to the attic space. I want to make sure the work is done efficiently to reduce heating costs and improve comfort. Experience with eco-friendly materials would be a plus. Ideally, someone who can advise on the best insulation options for an older Irish home. Please bring your own tools and materials if possible.