Main contractors in the UK

20744 UK companies working as main contractors.

• I Inhus Ltd Leeds · Design & build · 1-9 employees

  INHUS Group specializes in design-build projects, integrating engineering, manufacturing, and construction for a streamlined client experience. They o

• I Inik Construction Ltd London · Extensions · 1-9 employees

  INIK Construction is a trusted building company in London, offering a wide range of residential and commercial construction services including extensi

• I Initial Interiors London · Refurbishment · 1-9 employees

  London's commercial office refurbishment and fit-out specialists. With nearly 20 years of experience, we deliver bespoke solutions on time and on budg

• I Initial Systems Ltd Ashford · Main contractor

  Initial Systems is a construction company in the South East. Sectors include education, commercial, healthcare & highways with a focus on sustainabili

• I Inkko Mitcham · Fit-out & interiors · 1-9 employees

  Inkko is a nationwide leader in interior fit-out and shopfitting services, offering design, project management, and construction. With over 20 years o

• I Inline Cladding Ltd Glasgow · Cladding · 1-9 employees

  Inline Cladding offers expert cladding, roofing, and fire-safety compliance services. Specialising in rainscreen and external wall fire safety, they p

• I Inner Create Milton Keynes · Design & build · 1-9 employees

  Architectural design, home extension, loft conversion, & interior design. From planning & 3D visualisation to project management & energy-efficient re

• i innerspace London · House builder · 1-9 employees

  Innerspace designs and builds modern, sustainable homes with a focus on intelligence, personality, and affordability. They offer customisable living s

• I Inno Properties Richmond · Refurbishment

  Inno Properties offers house renovation, new build, and property staging services. Specializing in transforming properties and building dream homes wi

• I Innova Partnership London · Property developer

  Innova Partnership leverages Network Rail's property expertise and IJM Land's resources to develop redundant railway assets, generating capital for in

• I Innovate Agri Driffield · Civil engineering

  Specialist agricultural and solar civil work contractors based near Driffield, East Yorkshire, covering work across the UK. Over 30 years of experienc

• I Innovate D&B Ltd Billingham · Main contractor · 1-9 employees

  Innovate Design and Build Ltd is a family-owned construction firm based in Billingham, Stockton-on-Tees. We offer a comprehensive approach to construc

• I Innovate Facades Ltd Tonbridge · Cladding

  Innovate Facades Ltd is a specialist re-cladding contractor operating in the London region. We provide a full principal contractor package.

• I Innovate Home Solutions Ltd London · Design & build

  We specialise in home extensions, loft conversions, and full renovations designed to make your space truly yours.

• I Innovating Multi Trading Ltd Dunstable · Refurbishment · 1-9 employees

  Accredited multi-trade company offering refurbishment, fire stopping, and maintenance services with a focus on quality, safety, and competitive pricin

• I Innovation Construction And Development Ltd Brentwood · Main contractor · 1-9 employees

  Innovation Construction and Development offers high-quality construction services in Essex, including new builds, house extensions, loft conversions,

• I Innovation Construction Group Manchester · Main contractor · 1-9 employees

  Innovation Construction Group is a Manchester-based leader in building bespoke and exclusive properties, combining modern techniques and innovative de

• I Innovation Experts Ltd London · Design & build

  Innovation Experts Ltd offers premium construction & renovation services in London, providing reliable, high-quality refurbishment, repair, and mainte

• I Innovative Build Ltd Bridgwater · Main contractor

  Professional, experienced builders in Somerset, delivering quality construction services with a focus on reliability & customer satisfaction.

• I Innovative Developments Waterlooville · Refurbishment

  Innovative Developments is your trusted construction partner, providing high-quality construction services for all your needs. With 25+ years of exper

• I Innovative Home Renovation Sources Ltd Stoke-On-Trent · Plastering

  Innovative Home Renovation Sources Ltd provides professional plastering and joinery services in Stoke-on-Trent and surrounding areas. With many years

• I Innovative Utilities (UK) Ltd London · Utilities · 10-49 employees

  Innovative Utilities (UK) Limited is a privately owned Utility & Civil Contractor operating throughout the UK, with a strong focus on water and gas in

• I Inova Heat Ltd Hatton · Heating & ventilation

  Inova Heat: Gas, Oil & LPG boiler specialists offering installation, servicing, repairs, and more. Serving Warwickshire and surrounding areas with ove

• I Inox Group Ltd Northwich · Extensions · 1-9 employees

  INOX GROUP LTD offers comprehensive construction services including domestic extensions, ground works, and commercial fitouts. Expertise to deliver ex

• I Inproject Construction Ltd Wembley · Design & build

  Discover top-notch residential builders at INPROJECT CONSTRUCTION Ltd. We specialize in design build construction tailored to your needs.

• I InRenovate Colchester · Refurbishment

  InRenovate is your go-to property renovation company in Essex, specialising in full property renovations, bathroom renovations, extensions, conversion

• I Ins Property Claims Ltd Billericay · Refurbishment

  Ins Property Claims Ltd are your specialist building / independent loss assessor company. Home, commercial building damage, and more.

• I Inseen Construction Ltd Southend-On-Sea · Main contractor · 10-49 employees

  Inseen Construction Limited is a well-established construction and management company in the UK, known for its competence, teamwork, and high levels o

• I Insight Home Improvements Ltd Eastleigh · Refurbishment

  Insight Home Improvements Ltd has 25 years' experience providing high-quality renovations from concept to completion in Eastleigh, Southampton and Win

• I Insight Probuild Ltd Pinner · Design & build · 1-9 employees

  Honest | Trustworthy | Reliable. An experienced construction company serving the residential market, specialising in lofts, extensions, and design & b

• I Insignia Workplace Ltd London · Refurbishment

  Insignia Workplace Ltd - Professional refurbishment and contracting services for commercial and residential properties.

• I Insite Contracts Ltd Glasgow · Refurbishment · 10-49 employees

  Insite Contracts is a construction company focused on fostering close working relationships and delivering projects to the highest standards. They spe

• I Inspace Construction Group Ltd Northampton · Main contractor · 10-49 employees

  InSpace Construction are specialists in general building and property maintenance for private and commercial clients. Preferred installer for B&Q.

• I Inspire Contract Services Ltd Canterbury · Roofing · 10-49 employees

  Award-winning contractor delivering specialist roofing, waterproofing and building services for public and private sector clients across the UK. Trust

• I Inspire Design & Build (London) Ltd Brentford · Design & build · 1-9 employees

  Inspire Design & Build offers high-end design and build services for residential and commercial projects in London and the South-East, specialising in

• I Inspire Property (Jk) Ltd Littlehampton · Refurbishment · 1-9 employees

  Inspire Property Ltd is a family-run building company established in 2010. We provide building, refurbishment and property development services all th

• I Inspire Timber Systems Ltd Market Deeping · Timber frame

  Inspire Timber Systems are specialist timber frame manufacturers and suppliers of individually designed self build timber frame homes in the UK.

• I Inspired By Water Ltd Bordon · Swimming pools

  Commercial Water Features and Fountain Specialists. We design and supply a wide range of aquatic equipment and filtration systems for water-based proj

• I Inspired D&B Constructions Ltd Sittingbourne · Design & build · 1-9 employees

  Inspired Constructions D&B is a construction company founded in 2019, focusing on precision, sustainability, and quality in every project.

• I Inspired Painting Contractors Ltd Dunstable · Painting & decorating

  Inspired Painting Contractors Ltd offers a world of experience in all aspects of Painting, Decorating and Wallpapering. Based in Leighton Buzzard, Bed

• I Inspired To Build Ltd Folkestone · Bathroom fitting · 1-9 employees

  Bespoke bathrooms, luxury wetrooms, stylish Kitchens, modern, funky garden buildings Expert in construction services by Inspired to Build Ltd. 30 year

• I Inspired Washrooms Ltd Nottingham · Refurbishment

  Inspired Washrooms designs and installs commercial washrooms for a range of UK sectors, delivered on time and on budget. Get a free quote today!

• I Insta Build Solutions Ltd High Wycombe · Refurbishment · 1-9 employees

  Insta Build Solutions Ltd offers home improvements and renovations across High Wycombe and surrounding areas. With over 17 years of experience, we pro

• I Instaflame Design & Build Ltd London · Extensions · 1-9 employees

  Leading property developer for house extensions, kitchens, bathrooms, and loft conversions. Reliable & cost-effective construction services.

• I INSTALL SOLUTIONS LIMITED Bexleyheath · Fit-out & interiors

  Expert interior office construction and residential property services with unmatched quality and precision. We build your vision into reality.

• I Installio Ltd London · Solar PV

  Installio delivers clean energy upgrades as one connected system, helping improve EPC ratings and reduce household energy bills. From solar and batter

• I Instaltec Dundee · Civil engineering

  Instaltec are a leading Fibre Optic MDU Build & Civils Contractor operating UK Wide, specialising in the installation of external and internal fibre o

• I Instant Build Bury St. Edmunds · Steel fabrication

  Instant Build design, manufacture and supply light gauge steel frame components for affordable home extensions, garden rooms and construction projects

• I Instant Builders Ltd London · Extensions

  Instant Builders Ltd offers high-quality, professional, and reliable construction services in London, specializing in house extensions, loft conversio

• i instant designer LTD London · Kitchen fitting

  Instant Designer is a premier construction company specializing in kitchens, bathrooms, flooring, roofing, electrical, plumbing, painting, and landsca