Hi, recently a replacement rangehood was installed at my home and the installer cut holes through the double brick wall for the duct but left quite some damage to the internal and external brickwork and there is a hairline crack in the mortar above the hole. They didn't use a hole saw so they drilled multiple smaller holes and they used a broken brick some wood and Styrofoam to fill the hole for the previous rangehood pipe. This area is located in a roof cavity of a verandah. Is there potential for the damage to become worse? What sort of tradesperson would be best suited for the repairs?
Thanks
JerryM


