| M W Jones | 01286 872444 | | Tyddyn Perthi, Penisarwaun, Caernarfon, LL55 3BY |  Map & Directions |
| Advanced Roofing | 01745 824183 | | 22 Sunningdale, Abergele, LL22 7UB | | Map & Directions |
| Maclean & Roberts | 01407 740678 | | Friars, Llanfair Yn Neubwll, Holyhead, LL65 3LD | | Map & Directions |
| J & T Gizzi | 01745 824524 | | Ffordd Las Fawr Cottage, Tan y Fron Road , Abergele, LL22 9BB | | Map & Directions |
| Mike Sargent & Son Ltd | 01492 573314 | | 93 Victoria Drive, Conwy, LL31 9PG | | Map & Directions |
| Hagin & Jones | 01745 338163 | | 13 Grove Park Avenue , Rhyl, LL18 3RG | | Map & Directions |
| R E Burgess | 01286 880610 | | Treborenna, Carmel, Caernarfon, LL54 7AD | | Map & Directions |
| E & G Griffiths | 01758 740035 | | Ynysfor, Mynytho, Pwllheli, LL53 7RF | | Map & Directions |
| B Kavanagh | 01766 830268 | | 7 Mills Row, Blaenau Ffestiniog, LL41 3UE | | Map & Directions |
| Merrick Wheeler | 01745 890485 | | Parc Postyn Cottage, Prion, Denbigh, LL16 4RY | | Map & Directions |
| Mere Mate | 01758 721774 | | Pen y Bryn Bach, Boduan, Pwllheli, LL53 8UY | | Map & Directions |
| Conway Construction | 01492 875875 | | Enville, Gloddaeth Avenue, Llandudno, LL30 2AN | | Map & Directions |
| R Roberts & Son | 01492 546917 | | 260 Conway Road , Mochdre, Colwyn Bay, LL28 5DS | | Map & Directions |
| Michael J Broome & Associates | 01492 545692 | | 18a Everard Road, Rhos On Sea, Colwyn Bay, LL28 4EY | | Map & Directions |
| Roberts Homes | 01824 707600 | | Lon Parcwr Industrial Estate, Ruthin, LL15 1NJ | | Map & Directions |
| Charles Price Son & Grandson | 07778 750511 | | 50 Bron Vardre Avenue, Deganwy, Conwy, LL31 9UU | | Map & Directions |
| Rosealyn Design & Build Partnership | 01244 571011 | | Darland House, Chester Road, Rossett, Wrexham, LL12 0DL | | Map & Directions |
| G G Jones & Son | 01766 810427 | | Ael Y Drem, Pencaenewydd, Pwllheli, LL53 6DJ | | Map & Directions |
| Owen Arwel | 01745 870632 | | Bryn Goleu, Llansannan, Denbigh, LL16 5LF | | Map & Directions |
| R G Jones | 01492 593468 | | Corner Ways, Gannock Park, Deganwy, Conwy, LL31 9PZ | | Map & Directions |
| Ronald Jones | 01248 601052 | | Bron Arfon, Llwyn Bleddyn, Llanllechid, Bangor, LL57 3EF | | Map & Directions |
| Thompson Bros Builders Yard Ltd | 01407 742525 | | Gwenallt, Field Street, Valley, Holyhead, LL65 3EF | | Map & Directions |
| Jesse Williams & Son | 01492 592141 | | 18 Bryn Seiri Road, Conwy, LL32 8NR | | Map & Directions |
| Turner Bros | 01824 703768 | | Birch House, Hen Lon Parcwr, Ruthin, LL15 1NA | | Map & Directions |
| Gareth Morris Construction Ltd | 01691 718248 | | The Old Chapel, Pontfadog, Llangollen, LL20 7AR | | Map & Directions |
| John Parry & Hughes Ltd | 01407 710210 | | Glanrafon, Llanfechell, Amlwch, LL68 0SA | | Map & Directions |
| R S Davies Ltd | 01492 548448 | | 68 Colwyn Avenue, Rhos On Sea, Colwyn Bay, LL28 4NN | | Map & Directions |
| Aberfix | 01758 713603 | | 9 Bayview Terrace, Abersoch, Pwllheli, LL53 7UG | | Map & Directions |
| M & J Services Ltd | 01978 660399 | | Ash Road South, Wrexham Industrial Estate, Wrexham, LL13 9UG | | Map & Directions |
| Kd Allen | 01492 641888 | | Cynllwyd Bach, Crafnant Road, Trefriw, LL27 0JZ | | Map & Directions |
| Pritchard & Griffiths | 01766 512091 | | Dublin Street, Tremadog, Porthmadog, LL49 9RH | | Map & Directions |
| Stonewest Construction | 01341 247829 | | Llechyrd, Ffordd Glan Mor, Talybont, LL43 2AR | | Map & Directions |
| D Davenport | 01745 854795 | | 130 Beverley Drive, Prestatyn, LL19 7RE | | Map & Directions |
| Jones & Vaughan | 01492 518739 | | Bryn Derw, Peulwys Lane , Old Colwyn, Colwyn Bay, LL29 8YD | | Map & Directions |
| G Williams & Sons | 01978 822050 | | Jalna, Station Road, Ruabon, Wrexham, LL14 6DL | | Map & Directions |
| Robert Thomas | 01690 760388 | | Hafod Y Gwynt, Cwm Road, Penmachno, Betws Y Coed, LL24 0UN | | Map & Directions |
| D U Construction Ltd | 01407 769597 | | Bron Y Graig, Porth Y Felin Road, Holyhead, LL65 1BG | | Map & Directions |
| Roberts & Davies | 01248 601654 | | Erw Gron, Bethesda, Bangor, LL57 3NU | | Map & Directions |
| S Rees & Son | 01341 250365 | | The Workshop, Dolgellau Road , Fairbourne, LL38 2HJ | | Map & Directions |
| Eaden Homes Ltd | 01407 765603 | | Berwyn Porthdafarch Road, Holyhead, LL65 2SA | | Map & Directions |
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