Main contractors in the UK

20744 UK companies working as main contractors.

• O Oaktree Interiors Ltd Wokingham · Design & build · 10-49 employees

  Oaktree Interiors transforms workplaces across the South East with bespoke, imaginative, and cost-efficient office design, fit-out, and refurbishment

• O Oaktree Living Stockton On Tees · House builder · 10-49 employees

  Oaktree Living delivers new build affordable housing developments for social housing providers across the North East, partnership, land-led and tender

• O OAKTREE RENOVATIONS LTD Cheltenham · Refurbishment

  Cotswolds builders specialising in high-end property renovations, refurbishments, and bespoke joinery for listed period homes.

• O Oakville Contractors Ltd Brighton · Refurbishment

  Oakville Contractors Ltd, 18+ years of quality installations and clearances across Sussex.

• O Oakwell Construction Ltd Batley · House builder · 1-9 employees

  Oakwell Construction is a family-run business specialising in sustainable new builds, extensions, and loft conversions, ensuring quality and environme

• O Oakwood Building & Joinery Ltd Bolton · Refurbishment

  Oakwood Building & Joinery Ltd offers professional house extensions, loft conversions, home renovations, and building services across Manchester, Pres

• O Oakwood Building & Roofing Ltd Bristol · Main contractor

  Oakwood Building and Roofing are general builders, roofers and roofing repairs in Long Ashton, Pill and Bristol. Offering complete building services a

• O Oakwood Building Services (Norfolk) Ltd Cromer · Extensions · 1-9 employees

  Trusted builders in North Norfolk delivering extensions, renovations and full building services. Quality craftsmanship and reliable local expertise.

• O Oakwood Carpentry and Building Ltd Solihull · Carpentry & joinery · 1-9 employees

  Oakwood Carpentry & Building Ltd is a family-run building contractor in Solihull, offering carpentry, home extensions, conversions, and renovations wi

• O Oakwood Collective Stowmarket · Main contractor

  Oakwood Collective are Suffolk principle contractors delivering bespoke house extensions, renovations, new builds, kitchens, bathrooms & commercial bu

• O Oakwood Construction (UK) Ltd Main contractor · 1-9 employees

  Oakwood Construction (UK) provides expert building and structural engineering services to Greater London. With over 27 years of experience, we handle

• O Oakwood Construction Services Ltd Maidstone · Refurbishment · 10-49 employees

  Reliable reactive and planned maintenance across Kent, London and the South East. 24/7 support, fast response, and expert building maintenance solutio

• O OAKWOOD LOFTS Lancing · Loft conversions · 1-9 employees

  Unlock your home's potential with Oakwood Lofts. Expert loft conversions in West Sussex, adding space and value to your property. Contact us for a fre

• O Oakwood Properties (Sc) Ltd Renfrew · Design & build

  Oakwood Properties (SC) Ltd is a professional joinery and building company based in Central Scotland, offering design and build, extensions, refurbish

• O Oakworth Construction Ltd Southwell · Main contractor · 1-9 employees

  Oakworth Construction is a multi-disciplined main contractor specialising in the delivery of high-quality construction projects across the private res

• O Oakworth Homes Ltd Sheffield · Timber frame · 10-49 employees

  Oakworth Timber Engineering, based in Sheffield, is a leading UK timber frame company for manufacture, supply, delivery, and erection. Proud of qualit

• O Oakwrights Ltd Farnham · Timber frame · 1-9 employees

  Oakwrights have been building bespoke new oak frame structures and repairing Listed Buildings since 1995. Combining the skills of experienced carpente

• O Oasis Developers Hastings Ltd London · Property developer

  OASIS Developers is a leading property developer with extensive interests in Property Development and Construction around London, and Southwest Englan

• O Oasis Windows and Doors East Sussex · Windows & doors · 1-9 employees

  Oasis Windows & Doors Ltd is a family-run business in East Sussex, specialising in high-quality replacement windows, doors, conservatories, and orange

• O Oates Developments Ltd Elland · Main contractor

  Expert Huddersfield and Halifax builders with 30+ years' experience delivering quality construction, renovations and electrical work.

• O Obbard Ltd Colindale · Property developer · 10-49 employees

  Obbard is a London-based property company founded in 1994, offering specialist services in property development, design & build, and acquisition. They

• O Obe Building Ltd London · Extensions · 1-9 employees

  OBE Building delivers high-quality home extensions, loft conversions, refurbishments, structural steel and commercial fit-outs with expert project man

• O Obedair Ltd Plymouth · Refurbishment

  Obedair Construction is a solutions-focused construction business based in Plymouth, UK, delivering quality projects across various sectors with a str

• O Obelisk London London · Refurbishment

  Obelisk London Limited is a construction company offering expert contracting services in London, specializing in internal renovations, refurbishments,

• O OBG Homes Glasgow · Design & build · 10-49 employees

  OBG Homes are Glasgow's most trusted builder of single storey kitchen extensions. We offer a complete turnkey service for self-build homes, loft conve

• O Obr Contracts Ltd Ballymena · Roofing · 1-9 employees

  OBR Contracts is a leading commercial roofing refurbishment specialist in Northern Ireland, repairing, restoring, and maintaining industrial and comme

• O Obrien Roofing Ltd Dorchester · Roofing · 10-49 employees

  Obrien Roofing Ltd are roofing and leadworks specialists in Dorset, offering a full range of services to commercial and private customers. Established

• O Obsession Design And Build Ltd Weston-Super-Mare · Design & build · 1-9 employees

  Design and build home extensions, conservatory transformations, home renovations, professional decorators and plastering services, made to measure war

• O Obsidian Design & Build Ltd Macclesfield · Design & build · 1-9 employees

  Professional construction company delivering high-quality design and build services for residential and commercial projects. Offering end-to-end proje

• O Obstgarten Homes Watlington · Restoration & heritage · 1-9 employees

  Luxury holiday homes in Devon, Dorset and Austria. Beautiful heritage homes, coastal escapes, group accommodation, boutique stays.

• O OC Renovations Limited Dorchester · Refurbishment · 1-9 employees

  OC Renovations Ltd offers property maintenance, construction, and electrical services with a focus on reliability and customer satisfaction. Specialis

• O Ocd Construction Ltd High Wycombe · Refurbishment

  OCD Construction LTD offers expert refurbishment services with meticulous attention to detail, transforming commercial spaces with precision and quali

• O Ocdon Group Ltd Alfreton · Refurbishment

  OCDON GROUP LTD offers loft conversions, kitchen and bathroom renovations, painting, patio and driveway works, and full house refurbishments in Somerc

• O Ocean Blue One Ltd Abergele · Bathroom fitting

  Ocean Blue One Ltd specialise in the design and installation of Bathrooms & Wet Rooms, Disabled Bath/Shower rooms, Plumbing & Drainage and Home Improv

• O Ocean Builders Ltd Birmingham · Extensions · 1-9 employees

  Ocean Builders offers a comprehensive range of building services, specializing in extensions, new builds, roofing, and refurbishments. We also provide

• O Ocean Construction Services Ltd London · Main contractor · 1-9 employees

  Ocean Construction Services Ltd offers quality building, engineering, and renovation services across the UK, specializing in residential, commercial,

• O Ocean Global Ltd Walthamstow · Shopfitting

  Ocean Global Ltd is a shopfitting company established in 2005, serving the UK retail industry with project management, 3D design, and fit-out services

• O Ocean Interiors Walsall · Bathroom fitting

  Established Since 2000, Ocean Interiors have a successful customer portfolio fitting hundreds of bathrooms, wet rooms & kitchens in Walsall.

• O Ocean One Interiors Ltd Eastbourne · Kitchen fitting

  Crafting beautiful living spaces across Eastbourne and East Sussex since 2013, Ocean One Interiors is a trusted local expert in bespoke kitchens, bedr

• O Ocean United Ltd Peterborough · Refurbishment · 1-9 employees

  Ocean United specialises in revamping tired buildings, blending British heritage with modern design. They undertake refurbishment and building project

• O Oceanis Group Ltd Wickford · Stonemasonry · 1-9 employees

  Oceanis Group Ltd is a global force in stone, bringing material from all around the world to the UK. Dynamic and diverse, working with the best in the

• O Oceanview Developments Lymington · House builder · 1-9 employees

  Oceanview Developments is a family-run company established in 2001, providing high-specification, quality new homes across East and West Sussex, Kent,

• O Ocg Contracting Ltd Milton Keynes · Rail infrastructure

  OCG Contracting is a specialist construction contractor delivering high-quality solutions across the rail sector, commercial fit outs, and critical po

• O Ochil Joiners And Builders Ltd Tillicoultry · House builder

  Ochil Joiners and Builders: Family-run business providing bespoke building and joinery solutions. Specialising in house builds, renovations, and exten

• O Ochre7 Ltd Dunstable · Painting & decorating

  Ochre7 provides premium decorating and minor building services for residential, commercial, and industrial properties. With over 25 years of family bu

• O Ockelton Electrical Contractors Ltd Beverley · Electrical

  Ockelton Electrical are local electricians in Hull & East Yorkshire. Specialising in domestic, commercial and renewable energy solutions like Solar Pa

• O Ocl Rail Ltd Benfleet · Rail infrastructure · 10-49 employees

  OCL Group Ltd is a specialist contractor and supplier within the rail industry, established in 2007. They offer a range of civils, building, and elect

• O Ocs Roofing Ltd Enfield · Roofing

  OCS Roofing delivers expert roofing, leadwork, brickwork and scaffold services across London. 30+ years of trusted quality workmanship.

• O Oct Construction Ltd Warrington · Demolition

  Expert groundworks and civil engineering solutions across the North West and beyond. With a commitment to safety, efficiency, and quality.

• O Octa Design & Build Ltd Cambridge · Design & build

  Octa Design & Build: Building, Roofing & VELUX Certified Contractors based in Royston, Hertfordshire. Committed to quality construction.