This is one of our latest developments, GRP air-brick grilles. They are constructed in GRP (glass reinforced plastic/fibre glass) which can be in any colour to suit application and have aluminium mesh bonded into their structure, either a fine mesh for insect exclusion or heavier mesh for rodent exclusion. Both meshes can be incorporated if necessary. GRP has been used as the material is resistant and unpleasant for rodents and insects to attack, while having an attractive appearance. We make a range of sizes to cover most standard air-bricks and can make bespoke grilles as necessary. The aluminium meshes have been selected so as not to interfere with ventilation to the air space or building in general.