Main contractors in the UK

7023 main contractors listed from the UK register.

• I Investre Construction Ltd London · Property developer · 1-9 employees

  Investre Construction Ltd is a property developer company based in London, registered at Companies House in 2022.

• I Investre Ltd London · Property developer · 1-9 employees

  London-based property investment and development business focused on Prime Central London, Kensington, Chelsea, Mayfair, Marylebone, Bayswater, Knight

• I Ioluri Pro Ltd East Ham · Main contractor

  Providing trusted construction management, extensions, refurbishments, and building maintenance with care for your home or business.

• I Ip Building Ltd Tonbridge · Extensions

  IP Building has over 35 years of experience in building and transforming homes in Kent. We specialise in extensions, driveways, patios, and new builds

• i iPhorms Birmingham · Main contractor · 1-9 employees

  Iphorms Ltd offers a fixed, low monthly cost for its services, with UK-based support, zero contracts, unlimited users, submissions, and amendments. Ex

• I Iplan Construction & Consultants Ltd London · Civil engineering · 1-9 employees

  Iplan Construction & Consultants Ltd. offers expert planning, scheduling, and project management services led by an experienced civil engineer. Delive

• I Ipsum (UK) Ltd Nottingham · Main contractor · 1-9 employees

  Ipsum (UK) Ltd is a leading building contractor in Nottingham and the East Midlands, offering quality building services for residential, public sector

• I Ipswich Accident Repair Centre Ipswich · Main contractor · 10-49 employees

  Ipswich Accident Repair Centre offers minor to major body repairs on cars, vans, motorhomes, caravans, and light commercial vehicles. Approved by manu

• I IrishTrade Federation Belfast · Main contractor

  The Irish Trade Federation is a business directory promoting companies in Ireland. We offer Irish tendering facilities, Business Classifieds and Debt

• I Ironbuild Construction Ltd London · Fit-out & interiors

  London's trusted retail and commercial construction company. 200+ projects delivered. Fit-outs, new builds, refurbishments. Request a quote today.

• I Ironpeak Builders Ltd London · Main contractor

  IRONPEAK BUILDERS LIMITED is a new company incorporated on 8th July 2025. The company is based in London.

• I Iropeaccess Ltd London · Scaffolding

  Specialist rope access company providing work-at-height services across London and the UK. IRATA certified. Get a free quote today.

• I Isa Building Ltd Aylesbury · Main contractor · 1-9 employees

  ISA Building offers over 25 years of experience in construction and renovation, dedicated to quality craftsmanship and client satisfaction. They make

• I Iskcon Construction Ltd Edgware · Refurbishment · 1-9 employees

  Iskcon Construction Ltd is a local and trusted building company in Edgware, offering a wide range of professional, reliable, and friendly services tai

• I Island Facility Services Ltd Newport · Electrical · 10-49 employees

  IFS Property Services offers a comprehensive range of commercial and domestic property services on the Isle of Wight, including bathrooms, kitchens, d

• I Isrh Technologies Ltd Halifax · Main contractor

  ISRH Technologies Limited is a company that appears to be experiencing technical difficulties with its website, preventing access to its services and

• I Istrate Ltd Northampton · Main contractor · 1-9 employees

  Delivering high-quality residential and commercial construction with precision, reliability, and excellence since 2018.

• I It Info Systems Ltd Stourbridge · Main contractor · 1-9 employees

  UK software engineering consultancy specialising in cloud architecture, application development and technology delivery.

• I Itcs Construct Solution Ltd High Wycombe · Main contractor · 1-9 employees

  Itcs Construct Solution Ltd is a main contractor company based in High Wycombe, registered at Companies House in 2022.

• I Iuind Ltd London · Main contractor · 1-9 employees

  Building Specialists | Tailored Solutions for Homes, Businesses, and Industrial Spaces! Fixed Price Projects, Quality and Standards, Precision Plannin

• I Ivaron Group Ltd Maidstone · Main contractor

  Ivaron Construction Group Ltd provides comprehensive construction, surfacing, and civil engineering services. Expert team delivering quality projects

• I Ivy Construction (Midlands) Ltd Willenhall · Main contractor · 1-9 employees

  Ivy Construction is a trusted construction company serving residential and industrial clients across Walsall and the wider West Midlands area. With ov

• I Ivybuild Ltd Maldon · Main contractor

  Ivybuild is a trusted, all-in-one building solution based in Maldon, Essex, offering a comprehensive range of services for new builds, extensions, and

• I Iwanski Design Co. Ltd High Wycombe · Main contractor · 1-9 employees

  Iwanski Design Co is a family-run construction company in High Wycombe, experienced in renovations, extensions, loft conversions, kitchen and bathroom

• I Iwik Construction Ltd London · Main contractor · 1-9 employees

  Iwik Construction is a well-established building company in Southwest London, offering a full range of construction and renovation services. They prid

• J J & J Bricklayers Ltd Liverpool · Main contractor · 1-9 employees

  Award-winning construction and bricklaying company delivering high-quality builds for homeowners, developers, and commercial clients. Over 100 years o

• J J & J Wall Ltd Ascot · Main contractor · 1-9 employees

  J & J Wall is a family-run general building and roofing contractor serving Surrey, Middlesex, and Berkshire for over 50 years. They offer reliable ser

• J J & L Construction Ltd London · Extensions · 1-9 employees

  J & L Construction Ltd are your local experts for all building services in Valley Side, Waltham Forest, London. From extensions through to complete re

• J J & L Gratton Ltd. Stoke-On-Trent · Main contractor

  J&L Gratton Ltd is a family-run business established in 1998, offering a personal and professional service in building and construction from planning

• J J & R M Richardson Construction (Darlington) Ltd Darlington, Co Durham · Design & build · 10-49 employees

  J & R M Richardson Construction, founded in 1986, specialises in high-quality Design and Build or Traditional projects across the North East Region. T

• J J & S Rodger Ltd Blairgowrie · Carpentry & joinery · 1-9 employees

  J&S Rodger are joiners and building contractors delivering home improvements in Blairgowrie, Perthshire, and surrounding areas. Established in 1973.

• J J A Wright Construction Ltd Harpenden · Main contractor

  Award-winning builders and main contractors in Hertfordshire with over 30 years of experience. Specialising in high-end residential refurbishments, ex

• J J B Loughlin Contractors Chorley · Main contractor · 1-9 employees

  J. B. Loughlin Contractors Ltd offer residential and commercial building services. A family-run company with over 55 years in business, we prioritise

• J J Button Construction Ltd Newmarket · Main contractor · 1-9 employees

  J Button Construction Ltd: Builders, Groundworks, House Extensions, Carpentry & Insurance Work throughout Cambridgeshire & Suffolk.

• J J C Construction Group Ltd Basildon · Groundworks · 1-9 employees

  JC Construction Group Ltd are a building project company based in Essex, specialising in high-quality construction and property maintenance services f

• J J C O'Malley Construction Ltd Wakefield · Main contractor · 1-9 employees

  J.C.O'Malley Construction Limited is a family-run building and construction firm dealing in commercial and domestic contracts from planning to complet

• J J Carter Construction Ltd Stockton-On-Tees · Shopfitting · 1-9 employees

  J Carter Construction Ltd is a family-run construction company in Stockton-on-Tees, specialising in shop fitting and kitchen showrooms. They offer a w

• J J Champion Consulting Ltd London · Main contractor · 1-9 employees

  Champion Consulting provides project management and commercial services to the construction industry, specialising in estimating, cashflow forecasting

• J J D Kent Ltd Wigan · Main contractor · 1-9 employees

  Trustworthy, experienced, young, dynamic builders working for a family owned local firm. Fully qualified for stonework, brickwork, general building wo

• J J H Joinery & Construction Ltd Huddersfield · Main contractor · 10-49 employees

  JH Joinery & Construction Ltd offers bespoke joinery and construction services across Yorkshire and the North of England, specializing in residential

• J J J Mullane Ltd Canterbury · Main contractor

  JJ Mullane offer expert building services in Canterbury and throughout Kent. Please get in touch today to discuss your house extension.

• J J K Construction (South East) Ltd Maidstone · Main contractor · 1-9 employees

  J.K Construction Limited are an established Building and Construction Company in Kent with years of experience in delivering quality projects.

• J J L Consultants (North) Ltd Southend On Sea · Main contractor

  J L Consultants (North) Ltd is a main contractor company based in Southend On Sea, registered at Companies House in 2021.

• J J Lynch Building Ltd Swansea · Main contractor · 1-9 employees

  J.Lynch Building Ltd specializes in high-quality building services in Swansea and South Wales, including new builds, extensions, renovations, landscap

• J J Martin Building Ltd Norwich · Main contractor · 1-9 employees

  Building spaces with quality and care in the Norfolk area. Specialising in new builds, home extensions, and property renovations.

• J J N F Roofing And Building Ltd Grantham · Main contractor

  J N F Roofing And Building Ltd is a main contractor company based in Grantham, registered at Companies House in 2017.

• J J Orchard Construction Ltd Bodmin · Main contractor · 10-49 employees

  J Orchard Construction offers quality construction services across Cornwall, from new builds and renovations to commercial projects. We build on trust

• J J P Building Solutions Ltd Nottingham · Refurbishment · 1-9 employees

  JP Building Solutions Ltd is an award-winning construction and renovation company with over 20 years of experience, offering a wide range of services

• J J R Buckett And Sons Ltd Newport · Main contractor · 10-49 employees

  J.R Buckett & Sons - reputable and established building contractors on the Isle of Wight. New builds, refurbishments, extensions, conversions, commerc

• J J R Building Ltd Gloucester · Main contractor · 10-49 employees

  J R Building are construction contractors in Gloucester and beyond. We specialise in unique, bespoke building solutions and property maintenance.