IMPERVIOUS LTD Company number 11944631 · Monitor this company Active Overview People 1 Financial Control Documents Analysis Location Related Registered office AddressImpervious Waterproofing Ltd 3 New Mill Court, Swansea Enterprise Park, Swansea, Wales, SA7 9FG PostcodeSA7 9FG Companies at this postcode 167 Average house price in SA7 9FG £740,000 (1 sales) Map