Metal Quartz makes security doors and windows at Péruwelz in Hainaut — anti-burglary, bullet-resistant, prison and electromagnetic-shielding ranges — with fire resistance as one certified performance among several rather than the whole business. It holds BCCA certificate BC1-581-1057 under notified body 0749 for the METAL QUARTZ EI₁ 60 doorset to EN 16034, valid to the end of 2028. It belongs to the Icomet group and trades from the same street as its sister company Icomet.