If you didn’t get your house walls insulated thoroughly during construction, or perhaps you are unhappy with the quality of insulation used, our jet stream blown insulation Rockwool alternative can do the job for you. Jet stream blown insulation is popular around Australia as it saves energy costs. But Cosywrap has something even better in store for you. Our premium Rockwool insulation has won over the hearts of countless families and businesses for its high quality.