Main contractors in the UK

20692 UK companies working as main contractors.

• B Biggin Renovations Group Ltd Westerham · Refurbishment · 1-9 employees

  Biggin Renovations Group Ltd is recognized as a top renovation and home improvements firm throughout South London, Surrey and Kent.

• B Biglands Joinery Ltd Kendal · Windows & doors · 1-9 employees

  Family-run manufacturer and installer of bespoke hardwood/softwood windows, doors, frames, porches, wardrobes, and cupboards. Established 1984.

• B Bigness Group London · Refurbishment

  Bigness helps homeowners, landlords and businesses build, maintain and upgrade properties through expert construction, planned maintenance and long-te

• B Bika Construction Ltd Slough · Design & build · 1-9 employees

  Bika Construction is a young, modern, and driven company delivering high-quality, exceptional projects. As a family business, we treat every project w

• B Biker Bespoke Ltd Leyburn · Carpentry & joinery · 1-9 employees

  Leading manufacturer and installer of bespoke architectural joinery in the North of England, renowned for quality craftsmanship and attention to detai

• B Biker Group Construction Ltd Leyburn · Main contractor · 10-49 employees

  Biker Group: A family owned, multi-faceted business providing quality services to the construction industry, exceeding expectations in all of our divi

• B Bildex Ltd London · Refurbishment

  BILDEX LTD is a dynamic construction company offering a comprehensive range of services across the UK. We specialise in refurbishment, fit-out, and ne

• B Bill Kear Plant & Agricultural Contractors Ltd Epsom · Civil engineering · 10-49 employees

  Bill Kear Plant and Agricultural Contractors Ltd is a family-run business established in 1972, offering a wide range of land-based services including

• B Billy Brothers Ltd Erith · Bricklaying · 1-9 employees

  Billy Brothers Ltd is a family-run construction business in East London, offering brickwork, repointing, extensions, driveways, and painting services

• B Billy Mcguire Joinery & Building Ltd Ayr · Main contractor · 1-9 employees

  Billy McGuire Joinery & Building Ltd offers high-quality joinery and building services in Ayrshire & Glasgow. A family-run business with extensive exp

• B Bilt Renovation Ltd Croydon · Main contractor

  Bilt is a bespoke residential construction company offering unparalleled services from consultancy through to final finishes. We specialise in full re

• B Bilton & Johnson (Building) Co Ltd Brentwood · Main contractor · 10-49 employees

  Supplying quality building contracting services throughout the UK for over 45 years. Our construction services comprise the delivery of refurbishment,

• B Bimar Properties Watford · Extensions

  Bimar Properties Ltd build extensions, loft conversions and full-house renovations across Watford and Hertfordshire. Clean, on-time work, 4.9 stars ac

• B BIMOVATION LIMITED Liverpool · Refurbishment · 1-9 employees

  Transform Your Space with Innovative, Sustainable Renovation Solutions. BIMOVATION LIMITED enhances properties with energy-efficient designs, leveragi

• B Bingley Roofing West Yorkshire · Roofing · 10-49 employees

  Bingley Roofing is a professional, family-run business with over 50 years of experience in domestic, commercial, and industrial roofing across West Yo

• B Bio-Dynamics Lincoln · Concrete works · 1-9 employees

  Bio-Dynamics specialises in constructing on-site cast reinforced concrete tanks for water treatment, biogas, and storage. With 30 years of experience,

• B Biogas Solutions Ltd. Chepstow · Design & build

  Specialist innovators in flexible membrane biogas & syngas storage systems, designing, manufacturing, and installing worldwide.

• B BIR Developments Nottingham · Groundworks

  BIR Developments Ltd is a Nottinghamshire-based construction company focused on sustainability, quality, and people. They offer project management, gr

• B BIR Homes London · House builder

  BIR Homes is a forward-thinking homebuilder established in 2025, combining advanced and traditional build methods with local materials to create quali

• B BIRC Barking · Civil engineering

  BIR Contractors Ltd (BIRC) is a specialised civil and structural engineering contractor delivering projects from concept design to construction. We of

• B Birch & Sons General Building Ltd Oswestry · Groundworks · 1-9 employees

  Birch & Sons General Building Ltd are trusted family builders in Shropshire and surrounding areas. Quality workmanship and free no-obligation quotes.

• B Birch Construction Ea Ltd Wymondham · Main contractor · 1-9 employees

  Birch Construction is a Norfolk-based construction company known for crafting luxury and building excellence. They specialize in timber frame extensio

• B Birch Construction Surrey Ltd South Croydon · Extensions · 1-9 employees

  Family run builders in Surrey, specialists in extensions, new builds, refurbishments, loft conversions, and design & build projects. Trusted local exp

• B Birchel Construction Ltd Birmingham · Design & build · 1-9 employees

  Birchel Construction offers trusted, efficient construction services for retail, forecourt, and EV charging sites, with a focus on design and build tu

• B Birchen Construction Ltd Southampton · Main contractor

  Hampshire based construction main contractor providing commercial, residential, education new build and refurbishment projects. Trusted partner for qu

• B Birchley London · Main contractor · 1-9 employees

  Birchley is a design-focused construction company specialising in the delivery of outstanding private residences, transforming ambitious visions into

• B Birchley Homes Ltd London · House builder · 1-9 employees

  Birchley Homes Ltd is a property development and building contractor company based in Cambridgeshire, specializing in executive homes.

• B Birchwood Contracts Ltd Colchester · Carpentry & joinery · 1-9 employees

  Birchwood Contracts Ltd is a carpentry and construction company based in Colchester, Essex, serving East Anglia. They offer services for new builds, e

• B Birdsall Group Ltd Hemel Hempstead · Heating & ventilation · 10-49 employees

  Birdsall Group Ltd is a specialist engineering and environmental company delivering innovative solutions for the heat network and building services in

• B Birkby Construction Ltd Near Maidstone · Design & build · 10-49 employees

  Birkby Construction offers a full design and build service, acting as a one-stop contractor for commercial, domestic, and public sector projects. They

• B Birmingham Asphalt & Paving Ltd Solihull · Roofing · 1-9 employees

  Birmingham Asphalt Ltd is a leading roofing and asphalt specialist with over 38 years of experience. We offer expert advice, world-class workmanship,

• B Birmingham Joinery (Holdings) Ltd Birmingham · Carpentry & joinery

  Birmingham Joinery is a leading UK supplier of certified fire doors and bespoke joinery products to the commercial market, established in 2003.

• B Birstall Construction Ltd Leicester · Extensions · 1-9 employees

  Leicester & Midlands construction company delivering extensions, loft conversions and general building. Free no-obligation quote.

• B Bischell Design & Build Company West Kensington · Design & build · 1-9 employees

  Bischell offers stunning residential and commercial building, construction, and architecture services in London, with a Flawless Delivery™ promise for

• B Bisha Contractors Ltd Palmers Green · Main contractor · 1-9 employees

  Bisha Contractors Ltd offers a comprehensive range of building services including new builds, loft conversions, extensions, and refurbishments. With o

• B Bishop Bayliss Developments Caerphilly · House builder

  Bishop Bayliss Developments is a South Wales based property development company focused on creating high quality, energy efficient homes.

• B Bishop Lowes Developments Ltd House builder · 1-9 employees

  Bishop Lowes Developments based in Essex prides itself on creating luxury homes in the South East. Specialising in thoughtfully designed developments

• B Bishop Ltd West Bromwich · Civil engineering · 10-49 employees

  Bishop Ltd is a commercial & residential construction company specialising in all aspects of building work and civil engineering. Expert infrastructur

• B Bison Commercial Ltd London · Refurbishment

  Bison Works is a London-based construction company specialising in commercial refurbishment, development, and fit-out projects. They offer a client-fo

• B Bitri Ltd London · Main contractor · 1-9 employees

  Bitri Ltd is a leading construction company in Hendon, offering architectural solutions for dreams. With expert teams, we ensure quality craftsmanship

• B Bitterne Building Contractors Ltd Fareham · Extensions · 1-9 employees

  Bitterne Building Contractors Ltd are trusted building contractors in Southampton, offering professional and reliable services for house extensions, r

• B Bj Construct Ltd Dagenham · Extensions

  BJ Construct Ltd delivers building, renovation, handyman and extension services across London and East London. Get a free quote today.

• B BJ Patios and Drives Ltd Aberdaugleddau · Driveways & paving

  Trusted patio & driveway installers in Milford Haven, Pembrokeshire. 20+ years' experience, Army veteran-owned. Free quotes, call 07789 675640.

• B Bj Roofing And Cladding Ltd Northwich · Roofing

  Cheshire's certified experts in combustible cladding remediation and full-scope envelope services. Specialising in commercial roofing and cladding sol

• B Bjb Contractors Ltd Hereford · Groundworks

  BJB Contractors Ltd offers expert groundworks, fencing, and plant hire services in Herefordshire and Shropshire, with over 20 years of experience. NRS

• B BJD Brickwork Ltd Barrow-In-Furness · Bricklaying · 1-9 employees

  B J D Brickwork Ltd is a well-established team of builders in Barrow-In-Furness, specialising in brickwork services for new builds, extensions, and re

• B BJF Group Maidstone · M&E contracting · 250+ employees

  BJF Group is a national construction and facilities management company with five specialist divisions. They design, build, and maintain spaces for Tie

• B Bjf Group Ltd Maidstone · M&E contracting · 250+ employees

  BJF Group is a multidisciplinary building services provider delivering projects and long-term contracts across Construction, M&E, Facilities Managemen

• B Bjm Construction 25 Ltd Plymouth · Main contractor

  BJM Construction 25 Ltd - Professional building development and completion services in Plymouth, Devon. Quality craftsmanship, reliable service, and e

• B Bjp Projects Ltd Southsea · Design & build · 1-9 employees

  Hampshire based architects, BJP Projects are a dynamic multidisciplinary architectural design practice. We cover a range of work from new builds, exte