Main contractors in Wales

192 main contractors across Wales.

• K Kaytom Construction Ltd Bargoed · Main contractor

  Award-winning builder in Caerphilly, delivering outstanding workmanship across new builds, extensions, renovations, and bespoke developments. Years of

• K Kevco Construction UK Ltd Rhyl · Main contractor · 1-9 employees

  Kevco Construction UK Ltd is a professional building company in North Wales, specialising in high-quality property improvements and maintenance for do

• K Knights Construction (Residential) Ltd Wrexham · Property developer

  Knights Construction (Residential) Ltd is a property developer company based in Wrexham, registered at Companies House in 2018.

• K Korbuild Ltd Pontypridd · Main contractor

  Korbuild Ltd is a well-established, nationwide building contractor. Our success has been built on reliability, flexibility & professionalism.

• L L A Emery Building Services Ltd Cardiff · Main contractor · 1-9 employees

  LA Emery Building Services Ltd is a 4th generation company with 50 years of combined experience, offering high-quality building and improvement servic

• L Langstone Construction Group Ltd Cardiff · Main contractor · 10-49 employees

  Langstone Construction Group is committed to excellence, delivering safe, sustainable, and reliable results that exceed client expectations through tr

• L LAW Construction Rhyl · Main contractor · 10-49 employees

  LAW Construction delivers commercial building, maintenance and public sector services across North Wales and the North West.

• L Lfb Contractors Ltd Caerphilly · Main contractor

  Lfb contractors from Caerphilly - Experts in Building services. Learn more about our meticulous and professional approach to building projects.

• L LIMEMORTAR REPOINTING LIMITED Cardiff · Bricklaying

  Lime Mortar Repointing Ltd offers a range of services including lime mortar repointing, cement and sand repointing, brickwork, and structural cleaning

• L Lloyd & Gravell Ltd Llanelli · Main contractor · 50-249 employees

  Lloyd & Gravell are one of Wales's leading construction firms and a national award-winning contractor. They construct, refurbish and repair buildings

• M Maclennan Construction Ltd Bangor · Main contractor · 1-9 employees

  MacLennan Construction Limited, founded in 2003 in Bangor, Gwynedd, offers a full range of construction and renovation services for domestic and comme

• M MAINTY Group Newport · Refurbishment · 10-49 employees

  MAINTY Group is your one-stop shop for property, refurbishment, development, planned and reactive maintenance, and facilities management. Operating as

• M Manning Construction Ltd Bridgend · Main contractor · 10-49 employees

  Manning Construction Limited is a leader in providing value-added construction services, creating successful partnerships through exceptional performa

• M Martin Taffetsauffer Building & Civil Engineering Contractors Ltd Swansea · Main contractor · 10-49 employees

  Martin Taffetsauffer Building & Civil Engineering Contractors Ltd is a construction company based in South Wales, offering a range of services includi

• M Maxime Partnership Ltd Bridgend · Main contractor · 1-9 employees

  Maxime Partnership Ltd is a Principal Contractor specialising in commercial construction projects in South Wales. Known for delivering quality project

• M Melah Construction Ltd Porthcawl · Main contractor

  Melah Construction Ltd is a main contractor company based in Porthcawl, registered at Companies House in 2025.

• M Melah Maintenance Ltd Porthcawl · Main contractor

  MELAH Group offers a comprehensive range of construction services, leveraging over 40 years of combined experience. Specialising in civil works and re

• M Mint Construction & Maintenance Ltd Pontypool · Main contractor · 1-9 employees

  MINT CONSTRUCTION & MAINTENANCE LTD is a new company based in Pontypool, Torfaen.

• M Mj Davies Carpentry & Building Ltd Pontypridd · Main contractor

  MJ Davies Carpentry & Building Ltd are specialists in Home improvements, Extensions, Renovations, Loft & Garage Conversions, Kitchens and Bathrooms. O

• M Monnow Marquees Monmouth · Main contractor · 10-49 employees

  Monnow Marquees of Monmouthshire provide marquee hire for weddings, special events, corporate events, county shows and special parties in Monmouthshir

• M Moore Interiors Swansea · Main contractor

  Leading commercial construction company in Swansea, South Wales, offering expert building services. Trusted commercial contractors & builders for all

• M Moore Interiors (Wales) Ltd Swansea · Main contractor

  Leading commercial construction company in Swansea, South Wales, offering expert building services. Trusted commercial contractors & builders for all

• M Morganstone (Holdings) Ltd Swansea · Main contractor · 50-249 employees

  Morganstone specialises in high quality construction solutions, within the public, private, housing association sectors, within Wales.

• M Mpd Developments (Nw) Ltd Wrexham · Main contractor

  MPD Developments is your trusted local building contractor covering Cheshire and Shropshire. We deliver high-quality home improvements, renovations, a

• M MRJ Properties Ltd Cowbridge · Property developer · 1-9 employees

  MRJ Properties Ltd is an award-winning family-run business with over 15 years of experience in property development and project management, specialisi

• M Msh Building Ltd Cwmbran · Refurbishment

  Family-run business serving since 2001, specializing in high-quality projects and maintenance for Registered Social Landlords, Local Authorities, and

• N N.W.P.S. Construction Ltd Rhyl · Main contractor · 10-49 employees

  For 25 years, NWPS Construction has worked with local councils, housing associations, the NHS and emergency services, delivering high-quality building

• N National Training Index Bridgend · Property developer · 1-9 employees

  A free, open directory of UK construction training centres. Find accredited centres for CSCS, CITB, CPCS, NPORS, IPAF, PASMA and asbestos awareness.

• N Newton Barnes Ltd Swansea · Property developer

  Newton Barnes Ltd is a property developer company based in Swansea, registered at Companies House in 2026.

• N Nidd Vale Construction Newport · Fire protection · 1-9 employees

  Nidd Vale Construction are an industry certified team of experienced construction professionals, with an outstanding record of achievement throughout

• N Nigel Jenkins Construction Ltd Carmarthen · Main contractor · 1-9 employees

  Nigel Jenkins Construction Ltd is a family-run business in Llanelli, South and West Wales, offering a wide range of construction services with over 40

• N North Wales Local Prestatyn · Main contractor · 1-9 employees

  North Wales' #1 Business Directory. Find local tradespeople and businesses across North Wales, plumbers, electricians, builders, shops and more. Free

• O Omega Timber Frame Ltd Swansea · Main contractor · 1-9 employees

  Omega Timber Frame Ltd is a main contractor company based in Swansea, registered at Companies House in 2023.

• P P.E.P Construction Ltd Caernarfon · Main contractor · 1-9 employees

  P.E.P Construction Ltd is a trusted building and renovation service in Caernarfon, offering new builds, house extensions, and external construction se

• P Pen-Y-Bryn Joinery Ltd Denbigh · Main contractor

  Pen Y Bryn is a bespoke joinery, building and fit-out company with over 30 years experience based in Denbighshire, Wales.

• P Peter T. Griffiths Ltd Conwy · Main contractor · 10-49 employees

  Peter T Griffiths is a family-run building and construction contractor in North Wales, specialising in private and public sector projects with over 85

• P Phil Oakley Contractors Ltd Newport · Main contractor

  Phil Oakley Contractors is a Newport based construction company, founded in 1991. We provide a high quality, complete building and maintenance service

• P Pirrie Belfast Ltd Bangor · Main contractor

  PIRRIE BELFAST LIMITED is a company registered in the UK. The company's website could not be accessed.

• P Premier Forecourts And Construction Ltd Swansea · Main contractor · 50-249 employees

  Premier Forecourts and Construction offers specialist construction services for fuel forecourts, EV charging, public sector, and retail/commercial pro

• P Pride Developments Group Ltd Torfaen · Main contractor

  Pride Developments is a diverse and innovative total building solution built upon rich experience, unrivalled craftsmanship and service.

• P Pritchard Commercial Services Ltd Aberdare · Main contractor · 1-9 employees

  Pritchard Commercial Services offers Quantity Surveying, Project Management, and Construction Consultancy services across South Wales and the UK.

• P Proable Group Ltd Swansea · Main contractor

  Pro Able Group Ltd offers top-quality residential and commercial building and maintenance services in Swansea and South Wales, ensuring complete custo

• P Project Solutions Pencoed · Main contractor

  Project Solutions offer full construction services as your principal contractor across various sectors, transforming visions into reality from concept

• P Pure Homes (Rhuthun) Ltd St Asaph · Main contractor

  Pure Homes (Rhuthun) Ltd is a main contractor company based in St Asaph, registered at Companies House in 2021.

• P Pure Homes Nw Ltd St. Asaph · Main contractor

  Pure Homes Nw Ltd is a main contractor company based in St. Asaph, registered at Companies House in 2018.

• P Pure Residential & Commercial (Bodelwyddan) Ltd St. Asaph · Main contractor

  Pure Residential & Commercial (Bodelwyddan) Ltd is a main contractor company based in St. Asaph, registered at Companies House in 2020.

• P Pure Residential & Commercial (Chester) Ltd St. Asaph · Main contractor

  Pure Residential & Commercial (Chester) Ltd is a main contractor company based in St. Asaph, registered at Companies House in 2019.

• P Pure Residential & Commercial (Llanfair) Ltd St. Asaph · Main contractor

  PURE RESIDENTIAL & COMMERCIAL (LLANFAIR) LIMITED is a UK-based company.

• Q Quantas Construction Ltd Llanelli · Refurbishment · 1-9 employees

  Reliable, high-quality building services across Carmarthenshire, South & Mid Wales. Specialists in barn conversions, carpentry, extensions & renovatio

• R R&M Williams Ltd Neath · Main contractor · 50-249 employees

  R&M Williams Ltd. work with public and private sector clients to deliver a broad range of projects in Construction, Refurbishment, Maintenance and Dec