National Manhole Covers strives to manufacture and give our clients excellent polymer concrete manhole covers and frames at great service and at reasonable prices.We at National Manhole Covers attain our mission by continuous improvements in all our systems whilst maintaining SABS certification. Our clients are our pride and our motivated staff members are our means.35 persons of our communities find their daily bread at National Manhole Covers. More than half our staff has been with us for almost our entire existence. We manufacture SABS approved manhole covers and frames made from Polymer concrete. This is an alternative to cast iron, which is a product that gets stolen for scrap metal.