I had Ceiling Vac Specialist recently vacuum out the old paper insulation and replace with 3.5 batts, and also install Whirlie Birds on the roof in an effort to make our home both better for summer and also hopefully less reactive to people with dust allergies.
We booked them in for an in person quotation, and we were happy with their promptness and information so booked them in, and had a cancellation, so they shot us a quick message and told them they could com earlier. They had the 100sqm of ceiling vacuumed and new insulation installed with 3 whirlie birds all completed in the day time.
They were easy to deal with, efficient and provided a prompt service. 100% would recommend.