Clontarf has 20 listed in postcode 4019. Claimed businesses first, then A to Z.
As of October 2026 the guide lists 20 builders in Clontarf, postcode 4019. Every one links to its own website where it has one.
A QBCC licence number matched against the Queensland register sits on 4 of the 20, shown on the listing.
Of the 20, 9 show a phone number taken from the business's own website or entered by the owner, and 13 link to a website. Numbers are never taken from other directories.
Every listed website is checked by the guide's system each day. A business comes off the guide only when there is clear sign it has closed, seen on two checks at least 7 days apart. A slow or briefly down website never removes it.