G H James Cyf

G H James Cyf G H James Cyf is a Civil Engineering and Construction company based in Trawsfynydd. Gwilym H. James a’i wraig, Ann W. James yw cyfarwyddwyr y cwmni.

Cwmni teuluol yw G H James Cyf, wedi'i sefydlu yn 1985 ac yn masnachu fel cwmni cyfyngedig ers 2001. Mae’r ddau yn cymeryd rhan flaenllaw yn rhedeg y cwmni. Mae G H James Cyf yn ymfalchïo yn eu hymroddiad i recriwtio, cefnogi, cyflogi a datblygu sgiliau pobl leol. Mae oddeutu 80% o’r gweithlu yn byw o fewn radiws o 20 milltir o'r swyddfa yn Nhrawsfynydd. Mae’r gweithwyr safle i gyd, a’r is-ymgymer

wyr gyda ardystiad diogelwch safle CSCS. Mae’r gyrrwyr peiriannau gyda ardystiad CPCS i yrru a defnyddio peiriannau a’r offer priodol. Mae amrywiaeth eang o’r gweithwyr gyda blynyddoedd o brofiad yn y diwydiant adeiladu. Mae G H James Cyf yn cynnig cyflogaeth parhaus i bobl addas, cymwys, sydd ag agwedd bositif i`w gwaith. Mae rhaglen hyfforddi targedol i sicrhau bod ein gweithwyr yn cwblhau gwaith mewn modd sy`n ddiogel ac yn gynhyrchiol. Yn G H James Cyf, rydym yn ymroi i gwblhau gwaith mewn dull diogel ac i’r safon uchaf bosib, yn gweithio o fewn deddfwriaethau Iechyd a Diogelwch, cyfyngiadau amgylcheddol a chyfyngiadau daearyddol. Mae G H James Cyf wedi ennill nifer o wobrau, megis gwobrau amgylcheddol CEEQUAL, ac hefyd wedi cyrraedd y rhestr fer i “Construction Excellence in Wales, 2014.”

Cymwysterau
Wedi cofrestru â Constructionline. CHAS
ISO 9001
ISO 14001
OHSAS 18001

Clientiaid
Adra
Alun Griffiths Ltd
Balfour Beatty
Carillion
Cyfoeth Naturiol Cymru
Excalon
Galliford Try
Llywodraethau Lleol (Conwy, Dinbych, Fflint , Gwynedd, Powys, Ynys Môn)

About Us

G H James Cyf is a family run company, established in 1985 and has been trading as a limited company since 2001. James and his wife, Ann W. James are the directors and take an active part in the running of the company. G H James prides itself on recruiting and being a supporter of providing employment to, and developing the skills base of local people. Approximately 80% of it's current workforce live within a 20 mile radius of the office in Trawsfynydd. All of the Company's current site based workforce and sub-contractors have CSCS site safety certification. All plant operators have current CPCS certification to operate the relevant plant and machinery. Vast majority of the staff have years of experience in the construction industry. G H James Cyf offers continuous employment to suitable qualified people with good work ethic. We have a targeted training programme which ensures that our employees complete work in a safe and productive manner. At G H James Cyf, we are committed to completing work in a safe manner to the highest standard possible, working within Health & Safety legislations, environmental constraints and geographical restrictions. G H James Cyf has won numerous awards such as environmental CEEQUAL awards, and were also short-listed for "Construction Excellence in Wales, 2014." Qualifications
Registered with Constructionline. CHAS registered. ISO 9001
ISO 14001
OHSAS 18001

Client Base
Adra
Alun Griffiths Ltd
Balfour Beatty
Carillion
Excalon
Galliford Try
Local Government (Anglesey, Conwy, Denbigh, Flintshire, Gwynedd, Powys)
Natural Resources Wales

25/08/2026

Swydd ar gael: Cymhorthydd Gweinyddol

Gwaith dros gyfnod mamolaeth ac fe all fynd yn swydd barhaol.

Gallu cyfrifiadurol yn hanfodol ac fe fyddai gwybodaeth o drefn cyfrifon Sage yn fanteisiol ond ddim yn angenrheidiol.

Oriau i`w trafod a cyflog yn ddibynnol ar allu a chymwysterau`r unigolyn.

Swydd wedi ei leoli yn ein swyddfa yn Trawsfynydd (gweithio o adref ddim yn opsiwn)

Dydd Llun i dydd Gwener ac oriau i'w drafod.

Os oes gennych ddiddordeb a wnewch chi e-bostio [email protected] os gwelwch yn dda gan gynnwys eich C.V.

Vacancy as an administrative assistant where the ability to be fluent in the use of Welsh is essential.

27/06/2026
*** Contracts Manager (Construction) - Position available***A new permanent role of Contracts Manager on our constructio...
23/06/2026

*** Contracts Manager (Construction) - Position available***

A new permanent role of Contracts Manager on our construction side of the company is available at G H James Cyf.

The candidate must have proven experience of delivering projects safely, on time, within budget with high standard of quality. The role would involve working closely with the site teams, liaising with the client and report directly to the directors.

Previous experience in this role is essential.

Salary Package: Based on previous experience

Location: Trawsfynydd Office (LL41 4DU)

Please submit your CV and covering letter to [email protected]

www.jamescyf.co.uk

*** Rheolwr Contractau (Adeiladu) - Swydd ar gael***

Mae swydd barhaol newydd fel Rheolwr Contractau ar ochr adeiladu ein cwmni ar gael yn G H James Cyf.

Rhaid i'r ymgeisydd gael profiad o gyflawni prosiectau'n ddiogel, ar amser, o fewn y gyllideb gyda safon uchel o ansawdd. Byddai'r rôl yn cynnwys gweithio'n agos gyda'r timau safle, cyfathrebu gyda'r client ac adrodd yn uniongyrchol i'r cyfarwyddwyr.

Mae profiad blaenorol yn y rôl hon yn angenrheidiol.

Pecyn Cyflog: Yn seiliedig ar brofiad blaenorol

Lleoliad: Swyddfa Trawsfynydd (LL41 4DU)

Anfonwch eich CV a llythyr clawr i [email protected]

G H James Cyf is a Civil Engineering and Construction company established in 1985 based in the heart of Snowdonia in north Wales.

12/06/2026

SWYDDI AR GAEL! JOBS AVAILABLE

1 x Multi skilled operator (Dolgellau area) - experience in joinery required for installing fascia, sofits, guttering, sealing properties after EWI installation, chimney repair work etc.

4 x Skilled Groundworker – concrete paths, chainlink and panel fencing (2 x Bangor, 2 x Dolgellau area)

Site Labourer - enabling works for other other trades and groundworkers. (Dolgellau x 2, Bangor x 1)

Clean Driving Licence required for site labourer and multi skilled operator.

All positions require a valid CSCS.

Cyfradd tal yn ddibynol ar brofiad, cymhwysterau a gallu. Gwaith tymor hir ar gael.

Cysylltwch a ni ar [email protected] neu ffoniwch 01766 540 414 i drafod ymhellach.

Rate of pay dependant on experience, qualifications and ability.

Long term work available on both sites

Email [email protected] or call 01766 540 414 to discuss further

30/04/2026

JOB: SITE MANAGER
G H James Cyf have an opening for a Site Manager on a External Housing Improvement scheme in Dolgellau & Barmouth area for 9-12months.

Job opportunity to start May 2026.
Potential for permanent employment within company after this scheme.

Requirements: Previous site management experience, CSCS & SMSTS, Driving License.

1st Aid, Asbestos Awareness and Working at Heights would be beneficial but training can be provided.

Duties will involve:
Keeping high standard of H&S on site
Ensuring high quality work is delivered
Following works program and keeping to targets
Ordering materials
Liaising with Client

Your role would be supported by a Project Manager & Tennant Liaison Officer on the scheme.

Works vehicle would be provided.

Please email [email protected] with your CV or any enquiries

Address

Adeilad Utica, Trawsfynydd
Blaenau-Ffestiniog
LL414DU

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