Commercial construction companies in Wales

1183 companies across Wales working in the commercial sector.

• G Geoshape Surveys Ltd Crickhowell · Civil engineering

  Expert land surveyors with 25+ years experience. Advanced technology with accurate and reliable land surveys for every project. Contact us today.

• G GetZero Newport · Solar PV

  GetZero designs and installs commercial solar, battery storage, EV charging and wind systems across the UK. We are the commercial solar company for bu

• G Ggt. Thomas & Son Ltd Haverfordwest · Heating & ventilation · 10-49 employees

  GGT Thomas & Son Ltd offers commercial, industrial, and domestic central heating and plumbing services across West Wales, specialising in installation

• G Gi Construction Solutions Ltd Cardiff · Fire protection · 1-9 employees

  Delivering trusted construction, fire stopping and drywall solutions across the UK. Built on safety, compliance and precision for every project.

• G Giles Davies Ltd Newport · Main contractor · 10-49 employees

  Giles Davies is a multi-disciplined construction company committed to building beautiful, functional, and inspirational environments. They offer a wid

• G Glamorgan Services Ltd Neath · Roofing · 10-49 employees

  Glamorgan Services offers industry-leading roofing, ceiling, and flooring solutions in the Swansea and Port Talbot areas, with 45 years of experience.

• G Glasshorizon Designs Ltd Swansea · Glazing

  Choose GlassHorizon Designs Limited for your glass balustrade installation needs for unmatched quality, expertise, and innovation.

• G Glazetech Ltd Rhyl · Glazing

  Glazetech specialize in architectural glass solutions, providing design, manufacture and installation of our products.

• G Glentec Ltd Pontypridd · Windows & doors

  Glentec - Motorised Blinds and Curtains in South Wales, Bristol, Bath and the Cotswolds. Blinds for integration with Home Automation like Lutron, Rako

• G Global Insulation Logistics Ltd Newport · Insulation · 1-9 employees

  Global Insulation Logistics Ltd specialises in the construction of insulated structures including cold stores, food production facilities, fire-rated

• G Global Plastering Ferndale · Insulation

  PAS 2030 accredited insulation and rendering experts in South Wales and South West England. Reducing energy bills with EWI, IWI, and professional plas

• G Global Play Solutions Ltd Wrexham · Design & build

  UK company providing custom commercial soft play equipment installation, commissioning, and staff training services internationally.

• G Glowtech Heating & Plumbing Ltd Cardiff · Heating & ventilation

  Local heating, plumbing & renewables specialists in South Wales, specialising in Boiler Repair & Installation. Reliable, trustworthy, and affordable s

• G Glyn O. Evans Llandudno Junction · Plant hire

  Glyn O. Evans is a family-run business established in the early 1960s, specialising in portable accommodation and HIAB wagon hire services across Nort

• G Gmi Electrical Ltd Treharris · Electrical

  GMI Electrical delivers full-service electrical solutions across South Wales, from EICR testing and rewires to solar PV and EV charging.

• G Go Green Renewable Solutions Ltd Abergele · Solar PV · 1-9 employees

  Go Green Renewable Solutions Ltd provides Solar PV, Battery Storage, EV Chargers and Electrical Services across North Wales and the UK. Free quotation

• G Goldeal Ltd Swansea · Fit-out & interiors · 1-9 employees

  GOLDeal is a dynamically growing developer, project contractor, and specialist in the 'Fit-Out' industry. We transform visions into success through pa

• G Golden Floor Restoration Blackwood · Flooring

  Elevate your space with premium floor sanding, repair, and installation across Cardiff, Newport, and South Wales. Experience unmatched quality and bea

• G Gone Solar Porthcawl · Solar PV

  Save up to 90% on energy bills with trusted solar installation services from Gone Solar. Get a free quote and start your journey to energy independenc

• G Goodwin Electrical Ltd Llandudno · Electrical · 1-9 employees

  Award-winning, 5-star rated solar panel installers in North Wales. MCS, NICEIC. Solar, battery storage, EV chargers & electrical services.

• G Gorilla Grass Ltd Newport · Landscaping

  Gorilla Grass is a leading UK supplier and installer of artificial grass, offering high-quality synthetic turf products for residential, commercial, a

• G Gower Renewables Ltd Swansea · Solar PV

  Gower Renewables is an MCS certified installer of solar PV systems, battery storage, and EV chargers in Swansea and South Wales, serving domestic and

• G Gower Roofing Ltd Swansea · Roofing

  Gower Roofing Ltd provides a personal service for domestic and commercial customers across South Wales with over 30 years of experience.

• G Gower Tarmac Llanelli · Driveways & paving

  We lay driveways, patios, paths & car parks in tarmac & resin, handling everything from the first dig to the final finish. Get your free quote.

• G Grc Plumbing And Heating (Cardiff) Ltd Cardiff · Plumbing

  GRC Plumbing & Heating offers expert plumbing, heating, and boiler services for homes and businesses in Radyr and surrounding areas. Specialising in i

• G Green Dragon Heating Neath · Heating & ventilation

  Trusted heating engineers and plumbing services in South Wales. Specialising in boiler installations, servicing, repairs, and full bathroom projects f

• G Green Dream Concepts Swansea · Landscaping · 1-9 employees

  Green Dream Concepts specialise in garden design and build, landscape gardening and garden maintenance packages in Swansea, South Wales.

• G Green Light Rail & Construction Ltd Merthyr Tydfil · Rail infrastructure · 1-9 employees

  Green Light Rail & Construction Ltd, based in Merthyr Tydfil, is your go-to partner for comprehensive construction solutions.

• G Green Scaffolding Group Ltd Gaerwen · Scaffolding

  Professional domestic and commercial scaffolding across Anglesey and North Wales. Fully compliant service for homeowners, builders and contractors.

• G Green Scene Group Ltd Wrexham · Heating & ventilation · 1-9 employees

  MCS-certified air source heat pump installation in Wrexham & Surrounding Areas. Over 20 years of experience, 100+ satisfied clients. Get a free quote

• G Green Warmth Ltd Haverfordwest · Heating & ventilation

  Wales' longest-serving MCS accredited installer of renewable heating, heat pumps, solar PV, and battery storage solutions since 2007.

• G Greenlands Energy Tredegar · Heating & ventilation · 10-49 employees

  Greenlands Energy: Leading the way in sustainable energy solutions. Discover our innovative approaches to solar, wind, and geothermal energy that powe

• G Greenough & Sons Roofing Contractors Ltd. Holyhead · Roofing · 10-49 employees

  Award-winning heritage roofing specialists in natural slating, leadwork, and heritage roof restoration. Family-run since 1971 with nationwide reputati

• G Greenspace Living Ltd Abergavenny · Landscaping

  Greenspace Living offers modern garden design solutions including verandas, pergolas, composite decking, and external blinds, serving Wales and the Br

• G Greenways Electrical Llanelli · Electrical

  Expert Electrical Services for Homes and Businesses in Llangennech, Llanelli. Offering rewiring, testing, and installations with a focus on safety and

• G GRJ Interiors Limited Ferndale · Drylining · 1-9 employees

  Complete interior finishing services covering South Wales. Specialising in drylining, tiling, and painting for the building industry.

• G Groom Property Maintenance Ltd Cross Hands · Refurbishment · 10-49 employees

  Over 30 years of experience providing property maintenance needs across South Wales, South East and the South West of England.

• G Grosvenor Construction Ltd Rhyl · Restoration & heritage · 10-49 employees

  Multi award-winning construction company specialising in historic built environment and new build projects across the UK. Committed to quality craftsm

• G Groundwork & Leisure Services Ltd Wrexham · Groundworks

  Groundwork and Leisure Services Ltd (GLS) specialises in the supply and installation of playground and sports surfacing, and ancillary equipment for p

• G Groves Gas Ltd Cwmbran · Heating & ventilation

  Groves Gas is a family-centred business founded in 2006, aiming to be the leading independent gas, plumbing, and heating business in Wales. We pride o

• G GSP Electricians LTD Mountain Ash · Electrical · 1-9 employees

  For reliable emergency electricians in South Wales, contact GSP Electricians today for expert domestic and commercial services.

• G Gsr Construction Ltd Bridgend · Main contractor

  GSR Construction Ltd is a full-service building contractor delivering excellent services. We focus on safety, quality workmanship and transparent comm

• G Gwent Blast Ltd Pontypool · Refurbishment

  Gwent Blast Ltd offers mobile sandblasting services in Gwent/Torfaen for graffiti, rust, and coatings removal, plus stone refurbishment and general bu

• G Gwp Electrical Ltd Colwyn Bay · Electrical

  GWP Electrical are leading electricians and electrical contractors in Rhyl, North Wales, specialising in Domestic and Commercial installation, testing

• G Gwresogi Ltd Pwllheli · Heating & ventilation

  Renewable Heating, Plumbing & Solar Done Right. Featured By MCS See how Gwresogi is helping drive Wales' green energy transition At Gwresogi, we speci

• G Gwynedd Safeflue Specialists Ltd Caernarfon · Roofing

  Gwynedd Safeflue Specialists Ltd offers expert chimney flue installation and servicing in Chester and North Wales. Established in 1980, they are a fam

• H H S Davies Groundworks Pwllheli · Groundworks

  H S Davies Groundworks offers professional groundwork and landscaping services in Gwynedd. Established in 1998, we provide drainage, septic tank insta

• H H.D Heating Cardigan · Heating & ventilation

  HD Heating: trusted specialists in heating, renewable energy solutions, and plumbing services across Ceredigion, Pembrokeshire & Carmarthenshire.

• H H.M. Thomas (Loughor) Roofers Ltd Swansea · Roofing

  Experienced roofers in Swansea and South Wales offering a full range of roofing services including repairs, installations, and maintenance for domesti

• H H.Marshall Plumbing And Heating Services Ltd Barry · Plumbing

  H. Marshall Plumbing and Heating Services offers professional and reliable plumbing and heating services in Cardiff and the Vale of Glamorgan.