Main contractors in the UK

20744 UK companies working as main contractors.

• I Instinct Renovations Ltd Warlingham · Refurbishment

  Instinct Renovations is an established team of building contractors based in Warlingham, Surrey, offering quality workmanship and high customer satisf

• I Instyle All Trade Paisley · Fire protection · 10-49 employees

  Instyle All Trade delivers comprehensive trade services across all sectors, specializing in expert craftsmanship and fire protection. We ensure high-q

• I Insulated Conservatory Co Ltd Woodbridge · Extensions

  Insulated conservatories, warm roof replacements and garden rooms across Woodbridge, Ipswich and Suffolk. 40+ years' experience. Free quote.

• I Insulation Contracting Services Ltd Birmingham · Asbestos removal · 10-49 employees

  ICS are a high quality asbestos removal and insulation company that operate on Commercial and Domestic premises throughout the UK.

• I Insullite Ltd Rossendale · Roofing

  Insullite manufactures tiled conservatory roofs and operates specialist e-commerce brands, supplying roofing, plumbing, and building materials across

• I Intec Energy Solutions Ltd London · Solar PV

  INTEC Energy Solutions is a global leader in EPC Services, Project Development, BESS, and Operations & Maintenance for green energy solutions.

• I Intech Property Services Ltd Redditch · Refurbishment

  Intech Property Services offers quality disaster repair and building services to commercial and residential clients across the Midlands, specialising

• I Integra Buildings Ltd Paull · Modular & offsite construction · 50-249 employees

  Award-winning UK manufacturer of bespoke modular buildings and steel anti-vandal solutions, offering innovative, cost-effective, and time-efficient of

• I Integral Builders Wimbledon Chase · Extensions · 1-9 employees

  Integral Builders delivers luxury home extensions, loft conversions, renovations and architect-led building projects across South London and Surrey.

• I Integral Constructions Ltd London · Refurbishment · 1-9 employees

  Integral Constructions is a West London-based construction company offering end-to-end project management and execution for domestic refurbishments an

• I Integral Home Improvements Ltd Steyning · Refurbishment

  Design-led home improvements, building, heating, tiling and air conditioning across Brighton & Hove and Sussex. One coordinated team.

• I Integral Home Services Ltd Bristol · Driveways & paving

  Integral Home Services offers expert driveway paving, landscaping, carpentry, kitchen fitting, and waste clearance services in Bristol and the South W

• I Integrate Fitouts Ltd London · Fit-out & interiors

  Integrate Fitouts Ltd is a premier interior construction contractor specializing in office fitouts, shopfitting, and refurbishment work for commercial

• I Integrated Control Utilities Ltd Coalville · Security systems · 1-9 employees

  Integrated Control Utilities (ICUL) is a NICEIC Approved Electrical Contractor installing electrical, IT, and security systems. They also offer full b

• I Integrated Utility Services Ltd Newcastle Upon Tyne · Utilities

  Integrated Utility Services (IUS) is a leading UK provider of High Voltage power infrastructure services and adoptable utility networks, with extensiv

• I Integro Fitout Ltd London · Fit-out & interiors

  Integro is a leading retail fit-out company and shop fit-out contractor working across the UK, delivering exceptional retail environments for customer

• I Integrum Construction Ltd Paignton · Main contractor

  Integrum Construction is a family-run business offering complete construction services in Devon and Cornwall, South-West UK. From drawing board to 'fo

• I Intelect (UK) Ltd Middlesbrough · Electrical · 50-249 employees

  Intelect UK is an award-winning engineering contractor with over 25 years of experience, providing global engineering solutions across various industr

• I Intelitrade Developments Ltd London · Property developer · 1-9 employees

  Intelitrade Developments is a Real Estate Development and Principal Contractor company based in Central London, specialising in high-end residential p

• I Intelle Construction Ltd Pontypridd · Main contractor

  Intelle Construction is a construction company founded by senior professionals, experienced in managing complex projects across new build, refurbishme

• I Intelligent Scaffolding Ltd Liverpool · Scaffolding · 1-9 employees

  Award-winning Liverpool scaffolding company. Intelligent Scaffolding provides high-quality services to commercial customers across the UK.

• I Interclass Public Ltd Company Wolverhampton · Main contractor

  Interclass is a family-owned, Midlands-based UK construction business with 50 years of experience. They offer new build, design & build, extension, an

• I Intercounty Driveways Ltd Telford · Driveways & paving

  Intercounty Driveways Ltd specialises in high-quality driveways, patios and landscaping in Telford and surrounding areas. From block paving to resin d

• I Interdecs Maintenance Ltd Halesowen · Refurbishment

  InterDecs Maintenance LTD is a trusted industrial service provider specializing in the clearance and redecoration of old units, warehouses, factories,

• I Interfix Roofing Services Ltd Telford · Roofing

  Trusted local roofers in Telford with over 10 years of experience delivering fully guaranteed roofing services, including new roofs, repairs, fascias,

• I Interfix Services Ltd Bookham · Refurbishment · 1-9 employees

  Interfix Services Ltd, formed in 2004, specialises in project management and installation services, primarily within airports and educational faciliti

• I Interfix Washrooms Kent · Design & build

  Specialising in the design and delivery of high-quality school, commercial, leisure and healthcare washrooms across the UK. We offer turn-key solution

• I INTERFURB® (UK) LIMITED Westerham · Refurbishment

  INTERFURB® (UK) Ltd is a specialist UK commercial refurbishment and construction company delivering high-quality fit-out and refurbishment solutions.

• I Interglow (Contracts) Ltd Royston · Insulation

  Interglow are experienced insulation installers offering Cavity Wall Insulation, External Wall Insulation, Loft Insulation, EPC Assessments, and PAS20

• I Interholc Construction Ltd London · Main contractor

  Interholc Construction is a London-based building company with a strong reputation in residential, commercial, retail, hotels, and leisure sectors. Th

• I Interhome Construction Ltd London · Main contractor

  Interhome Construction Ltd offers bespoke residential and commercial construction services in London, managing projects from new builds to renovations

• I Interior Construction Ltd Ilford · Fit-out & interiors · 1-9 employees

  Interior Construction Ltd is a construction company based in Dartford, UK. We offer a range of services to meet your construction needs.

• I Interior Factory LTD Edinburgh · Refurbishment

  Trusted father-and-son renovation company specializing in kitchen & bathroom remodels, home additions, and complete makeovers. Quality craftsmanship a

• I Interior Lab Ltd. Petersfield · Main contractor

  InteriorLAB are a main contractor specialising in delivery for prime residential and commercial property sectors.

• I Interior Motives International Ltd London · Fit-out & interiors · 10-49 employees

  Experts in commercial construction management since 1981. Interior Motives has been a success story since 1981, with clients throughout London and the

• I Interior Precision Ltd Southend On Sea · Refurbishment · 10-49 employees

  Interior Precision Ltd is a leading interior refurbishment and fit-out contractor in London and the home counties, delivering quality projects with mi

• I Interior Projects Southern Ltd Horley · Refurbishment

  Interior Projects Southern Ltd are office refurbishment specialists, offering innovative concepts, designs, and installations for commercial propertie

• I Interior Psd Ltd London · Refurbishment · 1-9 employees

  Interior PSD Ltd is a building company in North West London offering a wide range of services including loft conversions, extensions, renovations, and

• I Interior Resolutions Ltd Binfield · Fit-out & interiors

  Interior Resolutions are commercial office fit-out and refurbishment specialists working across the UK, delivering outstanding results on time and to

• I Interior Revolutions Ltd London · Design & build · 1-9 employees

  London's premier construction company specializing in high-value new builds, luxury renovations, and reliable maintenance services. 15+ years experien

• I Interior Tec Ltd Mitcham · Fit-out & interiors

  InteriorTec delivers commercial fit-out, refurbishment and repairs across London, Surrey and Sussex, suspended ceilings, glass partitions, dry-lining,

• I Interiors Direct Ltd Wednesbury · Fit-out & interiors · 10-49 employees

  Interiors Direct offers commercial and domestic construction services, specializing in office, retail, and commercial fit-outs and refurbishments. Wit

• I Interiors UK Ltd Huddersfield · Shopfitting · 50-249 employees

  The UK's leading commercial interior shopfitters to the restaurant, retail and leisure sectors.

• I Interiors12 Ltd Reading · Kitchen fitting

  Interiors 12 is an independent family business established in 1979, specialising in bespoke design and project development for kitchens, bathrooms, an

• I Interkey Contracting Ltd Corby · Main contractor

  Interkey Contracting Ltd, Expert construction solutions for stadiums, commercial developments, industrial facilities, and food and beverage projects a

• I Interlay Driveways Worcester · Driveways & paving

  Interlay Driveways have been improving properties around the West Midlands and Worcestershire for over ten years, specialising in driveways and landsc

• I Interlock Brickwork Ltd Plymouth · Bricklaying · 1-9 employees

  Interlock Brickwork is a leading construction company in the South West of England, known for exceptional results in bricklaying, blockwork, and stone

• I Interlock Paving Ltd Daventry Northants · Driveways & paving · 1-9 employees

  Interlock Paving Ltd specialises in high-quality hard landscaping for the commercial sector, offering nationwide services in paving and associated wor

• I Intermarine Ltd Southampton · Marine & water engineering · 10-49 employees

  Specialists in the design, manufacture and installation of pontoon systems, delivering high-performance marina infrastructure and berthing solutions f

• I International Hospitals Group Gerrards Cross · Design & build

  International Hospitals Group (IHG) is a global leader in end-to-end physical and mental healthcare service solutions, providing expert consultancy, t