Main contractors in the UK

20744 UK companies working as main contractors.

• I IN&OUT Garden Houses Peebles · Design & build

  IN&OUT Garden Houses designs and builds contemporary garden houses across the UK, offering bespoke solutions for home offices, gyms, and relaxation sp

• I In2 Windows and Doors Warrington · Windows & doors

  In2 Windows & Doors Warrington supplies a range of windows, doors, bi-fold doors, composite doors, patio doors & conservatories in Warrington. Call 01

• I In4structure Ltd Romsey · Kitchen fitting

  IN4structure is a family-run construction company based in Portsmouth, offering a wide range of building services including kitchens, bathrooms, joine

• I Inactu Facilities Support Ltd Hazel Grove · Design & build

  Inactu offers expert design, refurbishment, and furnishing of office and commercial interiors, creating bespoke spaces tailored to business needs and

• I Inbyld Ltd High Wycombe · Main contractor · 1-9 employees

  Inbyld Ltd is a bespoke building company and principal contractor offering complete project management, expertise, efficiency, and compliance for cons

• I Incredible Construction Chelmsford · Loft conversions

  A family-owned company specializing in loft conversions and kitchen extensions in Essex, offering a full planning and completion service with qualifie

• I Ind.Com Construction Ltd Nantwich · Main contractor · 1-9 employees

  Ind.com Construction Ltd specialises in building construction and maintenance for industrial, commercial, and education sector buildings in North West

• I Indecon Building Ltd Essex · Main contractor · 10-49 employees

  Indecon Building Limited is a construction company offering new builds, refurbishments, and commercial services across London and the South East. They

• I Independent Installations UK Ltd Eastleigh · Loft conversions · 1-9 employees

  Independent Installations UK Ltd is a family-run building company established in 1986, offering a wide range of construction and home improvement serv

• I Independent Lifestyles (North West) Ltd Warrington · Refurbishment · 1-9 employees

  Independent Lifestyles are commercial and domestic refurbishment specialists with over 40 years experience. North West fire door specialists.

• I Independent Living Services Bournemouth · Refurbishment · 1-9 employees

  ILS Southern Ltd, trading as Independent Living Services, specialises in home adaptations and building services for individuals needing assistance to

• I Indiego Build Ltd Southsea · Main contractor

  IndieGo Build offers new builds, extensions, and loft conversions with experienced teams and full project management. They guide clients through proje

• I Indigo Forecourts Ltd Ashton-Under-Lyne · Design & build · 1-9 employees

  Indigo Forecourts are specialists in turnkey building solutions for petroleum forecourt design and build.

• I Indorset Developments Ltd Blandford Forum · Refurbishment · 1-9 employees

  Indorset Developments are a well established building company in Dorset with over 15 years experience in the building and construction trade.

• I Indus Valley Builders Ltd Slough · Main contractor

  Indus Valley Builders: From foundation to finish, we make your dream home a reality. We build communities, lifestyles, and lasting value with quality,

• I Industrial Building Maintenance & Repair Ltd North Walsham · Refurbishment

  Industrial Building Maintenance & Repair Ltd offers comprehensive industrial building maintenance and repair services across the UK, including roofing

• I Industrial Contracting Services Ltd Burton-On-Trent · Main contractor · 10-49 employees

  ICS is a proprietor-owned construction company with a reputation for tackling difficult jobs. They offer a range of core services including principal

• I Industrial Engineering & Installation Services Ltd Stone · Steel fabrication · 10-49 employees

  Industrial Engineering & Installation Services (IEIS) offer turnkey solutions for fabrication, site and project management across various construction

• I Industrial Roofing Group Ltd Crawley · Roofing

  Industrial roofing and cladding specialists serving Sussex & Surrey. Offering metal roofing, flat roofs, gutter clearing, roof repairs, and maintenanc

• I Industrial Roofing Scotland Glenrothes · Roofing · 10-49 employees

  Industrial Roofing Scotland offers roofing & cladding services for industrial buildings in Fife and Glasgow, covering all areas in Scotland and the UK

• I Industrial Roofing Services (NE) Ltd Newcastle Upon Tyne · Roofing

  Industrial Roofing Services (NE) Ltd are specialists in the installation and maintenance of roofs for industrial and commercial premises. Over 30 year

• I Industrial Roofing Solutions Solihull · Roofing

  Industrial Roofing Solutions (UK) Limited is a Birmingham-based roofing company with three decades of experience in industrial roofing and cladding. S

• I Industrial Services Plumbing And Heating Ltd Cupar · Electrical

  Scotland's leading electrical, fuel and mechanical contractors since 1968. We deliver exceptional work across transport, local authorities, and chemic

• I Inevitable Developments Haywards Heath · Design & build

  Inevitable Developments is a design, planning, and build company focused on achieving the best for your property projects, with people at the heart of

• I Infallible Systems Ltd Erith · Roofing

  Award winning mastic asphalters & roofers offering a first class service and delivering complete roofing and waterproofing solutions.

• i inficosolutions London · Extensions

  Infico Solutions offers home and business construction services including extensions, conversions, renovations, and general improvements. A family-run

• I Infinite Group Services Facilities Management Birmingham · Fit-out & interiors

  Fabric Maintenance Projects, part of Infinite Group Services, delivers Commercial Fit Out, Maintenance and Facilities Management Services across the U

• I Infinite Lofts and Extensions Barking · Loft conversions

  Infinite Loft and Extensions are expert home builders specialising in custom loft conversions, home extensions, and renovations. Create your dream hom

• I Infinite Pools Ltd Handcross · Swimming pools

  Infinite Pools specialises in bespoke swimming pool construction, offering traditional and natural pool options. They are the specialist swimming pool

• I Infinite Roofing Ltd Epsom · Roofing

  Infinite Roofing provides residential and commercial roofing, repairs, replacements and maintenance across Surrey and London. Free quotations.

• I Infiniti Building Bradford · Plumbing

  Infiniti Building Services offers professional building services including gas, electrical, plastering, and bricklaying. Certified professionals ensur

• I Infinity Builders Ltd Romford · Refurbishment

  Infinity Builders Limited offers extensive experience in new build works, commercial and residential refurbishment, extensions, and conversions within

• I Infinity Building Solutions Ltd Luton · Refurbishment

  Infinity Building Solutions offers expert construction and maintenance services, focusing on precision and innovation to exceed client expectations an

• I Infinity Construct LTD Hatfield · Design & build · 1-9 employees

  Infinity Construct Ltd offers design and build services from initial sketches to final construction. With over 25 years of experience, they are a trus

• I Infinity Construction Project Ltd London · Extensions · 1-9 employees

  Infinity Construction Project is a modern construction company operating successfully in the London market, offering general construction services inc

• I INFINITY CONTRACTING LIMITED Burscough · Refurbishment

  Infinity Contracting delivers responsive maintenance, compliance and project delivery for housing and commercial estates across the UK. 24/7 call-out

• I Infinity External Services Ltd Kingston Upon Thames · Roofing

  Expert roofing & landscaping services in South West London. Experienced in all aspects of the roofing & landscaping trade.

• I Infinity Home Abergele · Refurbishment

  Infinity Home Renovations delivers expert craftsmanship and personalised solutions across North Wales, Wrexham, and Chester. Let us turn your house in

• I Infinity Property Improvements Ltd Cannock · Roofing

  Leading Midlands home and property improvements specialist offering professional pitched and flat roofing, garage conversions, and general building se

• I Infinity Roofing & Construction Ltd Farnham · Roofing · 1-9 employees

  Infinity Roofing offers expert roof repairs, replacements, and maintenance for homeowners across the South East. Specialising in flat roofs, chimney r

• I Influent Construct Ltd London · Main contractor · 1-9 employees

  The professional digital gateway for Influent Construct LTD, providing project insights, maintenance scheduling, and streamlined quotation workflows f

• I Infraconnex Ltd St. Ives · Civil engineering · 1-9 employees

  InfraConnex are a main contractor delivering infrastructure schemes throughout the UK. Specialising in energy infrastructure, including solar and EV c

• I Infrax Build Ltd Nottingham · Main contractor

  Infrax Build Ltd offers quality construction and renovation services in Nottingham, specializing in home renovations, refurbishments, and small-scale

• I Ing Building Ltd Ipswich · Main contractor · 1-9 employees

  ING Building is a professional, experienced building contractor offering the highest standard of domestic and commercial services across Suffolk, spec

• i inGeni Construction and Renovation London · Restoration & heritage

  Leading heritage builders in Essex specializing in listed building restoration, barn conversions, oak framing, and bespoke construction services acros

• I Ingeni Solar Walsall · Solar PV · 1-9 employees

  Commercial renewable energy solutions for UK businesses, including solar PV, battery storage, EV charging, project delivery and maintenance.

• I Ingenium Civil Engineering Ltd Bristol · Civil engineering · 10-49 employees

  Commercial civil engineering contractor in Bristol delivering groundworks, drainage, and reinforced concrete projects. Serving South West England & Wa

• I Ingenuity Trade Ltd Bristol · Electrical · 10-49 employees

  With our wealth of experience, we at Ingenuity Electrical are effective and efficient, providing personalised and professional services.

• I Ingham & Garner Ltd Prescot · Main contractor · 10-49 employees

  Ingham & Garner Ltd is a family-run construction company based in Prescot, Merseyside. Specialising in extensions and refurbishments, they serve comme

• I Ingon Tarmac Warwick · Road surfacing

  Ingon Tarmac is a family-run business established in 1983, offering surfacing work for drives, car parks, farm tracks, and more across Warwickshire an