| 45451000 |
Gwaith addurno |
Math arall o waith cwblhau adeilad |
| 45000000 |
Gwaith adeiladu |
Adeiladu ac Eiddo Tiriog |
| 45454100 |
Gwaith adfer |
Gwaith ailstrwythuro |
| 45453100 |
Gwaith adnewyddu |
Gwaith atgyweirio ac ailwampio |
| 45453000 |
Gwaith atgyweirio ac ailwampio |
Math arall o waith cwblhau adeilad |
| 45400000 |
Gwaith cwblhau adeiladau |
Gwaith adeiladu |
| 45443000 |
Gwaith ffasâd |
Gwaith paentio a gwydro |
| 45432130 |
Gwaith gorchuddio lloriau |
Gwaith gosod a gorchuddio lloriau, gorchuddio waliau a phapuro waliau |
| 45430000 |
Gwaith gorchuddio lloriau a waliau |
Gwaith cwblhau adeiladau |
| 45432100 |
Gwaith gosod a gorchuddio lloriau |
Gwaith gosod a gorchuddio lloriau, gorchuddio waliau a phapuro waliau |
| 45432000 |
Gwaith gosod a gorchuddio lloriau, gorchuddio waliau a phapuro waliau |
Gwaith gorchuddio lloriau a waliau |
| 45300000 |
Gwaith gosod ar gyfer adeiladau |
Gwaith adeiladu |
| 45332400 |
Gwaith gosod darnau gosod glanweithiol |
Gwaith plymwr a gwaith gosod draeniau |
| 45332300 |
Gwaith gosod draeniau |
Gwaith plymwr a gwaith gosod draeniau |
| 45420000 |
Gwaith gosod gwaith asiedydd a saer |
Gwaith cwblhau adeiladau |
| 45422000 |
Gwaith gosod gwaith saer |
Gwaith gosod gwaith asiedydd a saer |
| 45331100 |
Gwaith gosod gwres canolog |
Gwaith gosod systemau gwresogi, awyru ac aerdymheru |
| 45432110 |
Gwaith gosod lloriau |
Gwaith gosod a gorchuddio lloriau, gorchuddio waliau a phapuro waliau |
| 45432114 |
Gwaith gosod lloriau pren |
Gwaith gosod a gorchuddio lloriau, gorchuddio waliau a phapuro waliau |
| 45350000 |
Gwaith gosod mecanyddol |
Gwaith gosod ar gyfer adeiladau |
| 45331210 |
Gwaith gosod systemau awyru |
Gwaith gosod systemau gwresogi, awyru ac aerdymheru |
| 45331000 |
Gwaith gosod systemau gwresogi, awyru ac aerdymheru |
Gwaith plymwr a gwaith glanweithiol |
| 45310000 |
Gwaith gosod trydanol |
Gwaith gosod ar gyfer adeiladau |
| 45311000 |
Gwaith gwifro a ffitio trydanol |
Gwaith gosod trydanol |
| 45320000 |
Gwaith inswleiddio |
Gwaith gosod ar gyfer adeiladau |
| 45321000 |
Gwaith inswleiddio thermol |
Gwaith inswleiddio |
| 45440000 |
Gwaith paentio a gwydro |
Gwaith cwblhau adeiladau |
| 45332200 |
Gwaith peipiau dwr |
Gwaith plymwr a gwaith gosod draeniau |
| 45410000 |
Gwaith plastro |
Gwaith cwblhau adeiladau |
| 45330000 |
Gwaith plymwr a gwaith glanweithiol |
Gwaith gosod ar gyfer adeiladau |
| 45332000 |
Gwaith plymwr a gwaith gosod draeniau |
Gwaith plymwr a gwaith glanweithiol |
| 45442000 |
Gwaith taenu araenau amddiffynnol |
Gwaith paentio a gwydro |
| 45431000 |
Gwaith teilsio |
Gwaith gorchuddio lloriau a waliau |
| 45431100 |
Gwaith teilsio lloriau |
Gwaith teilsio |
| 45431200 |
Gwaith teilsio waliau |
Gwaith teilsio |
| 45450000 |
Math arall o waith cwblhau adeilad |
Gwaith cwblhau adeiladau |
| 45317000 |
Math arall o waith gosod trydanol |
Gwaith gosod trydanol |