Main contractors in London

1935 main contractors across London.

• J JRL Group Borehamwood · Main contractor · 250+ employees

  The JRL Group encompasses 14+ divisions delivering bespoke solutions for complex projects, integrating design, manufacturing, and logistics for reside

• J Julio'S Builders Ltd London · Main contractor · 1-9 employees

  Julio's Builders provide all the construction services you will ever need, including services such as; New builds, Extensions, Renovations, Roofing, E

• J Justconstruct Ltd Banstead · Main contractor · 1-9 employees

  Justconstruct Ltd offers reliable and high-quality building and construction services in Banstead. Family-run with a focus on customer satisfaction.

• J JW Green Builders Grays · Main contractor

  JW Green Builders offers a personal touch for tailored building projects, blending traditional and contemporary styles. Based in Leicestershire, they

• K K Dean Building Services Ltd Pinner · Refurbishment · 1-9 employees

  KDean Building Services Ltd is a family-run construction company delivering exceptional results on projects large and small, from bespoke residential

• K K.C. Ware Building Service Design Ltd. Sidcup · Main contractor · 1-9 employees

  K.C. Ware Building Service Design Ltd. is a main contractor company based in Sidcup, registered at Companies House in 2011.

• K K&M PALACE LTD London · Electrical · 1-9 employees

  K&M Palace Ltd offers expert gas, electrical, and plumbing services, alongside comprehensive construction, installation, and repair solutions for dome

• K K2 Business Partners Epsom · Main contractor · 1-9 employees

  K2 Business Partners: UK turnaround investors and finance specialists for companies with £3m-£20m turnover. Hands-on operational expertise since 1990.

• K K777orbi Construction Ltd London · Steel fabrication · 1-9 employees

  K777ORBI Construction Limited offers steel fixing, concrete reinforcement, labour supply, and full construction services in London. Committed to safet

• K Kadub Ltd London · Main contractor · 1-9 employees

  Kadub Ltd offers high-quality building and property improvement services in Surrey Quays, Southwark, and surrounding areas of London.

• K Kane Contractors Ltd London · Refurbishment

  Kane Contractors Ltd is a director-led London renovation and construction company delivering full property renovations, kitchens, bathrooms, joinery a

• K Kaplan Construction London · Main contractor

  Kaplan Construction is a family-run luxury construction and renovation company in London, building dreams since 1998. Specialising in high-end residen

• K Kaplan Construction London · Main contractor · 10-49 employees

  Luxury construction & renovation company in London, building dreams since 1998. Specialising in house extensions, loft conversions, renovations, new b

• K Kavbro Build Ltd Epsom · Main contractor · 10-49 employees

  Kavbro are the leading local building contractor managing projects from conception to completion. They control their own labour, plant and machinery,

• K Kd Brickwork (UK) Ltd London · Bricklaying

  KD Brickwork (UK) Ltd is a leading contractor providing expertise in the Brickwork sector and delivering workmanship for every construction project. S

• K Kee Projects Ltd London · Fit-out & interiors · 1-9 employees

  Kee Projects are a leading and independent fit out company in London who work within a multitude of sectors including restaurants, office spaces, hote

• K Kelly Rail U.K. Ltd Wembley · Main contractor

  Kelly Rail U.K. Ltd is a main contractor company based in Wembley, registered at Companies House in 2002.

• K Keltbray Ltd Esher · Demolition

  Keltbray is a specialist engineering and early-stage construction provider in the UK built environment sectors. They offer integrated solutions across

• K Kemstar Services Ltd Sutton · Refurbishment

  Kemstar Services provides top-notch property maintenance and construction for homes and businesses. Trusted experts in renovations, new builds, and pr

• K Kendell Contracts Ltd London · Main contractor · 1-9 employees

  Kendell Contracts Ltd has many years of experience working with contractors delivering projects within London and surrounding counties. We specialise

• K KENNETH LLOYDS (E1) LIMITED London · Main contractor · 1-9 employees

  Kenneth Lloyds is an estate and letting agency in East London, offering property sales, lettings, and management services across the capital.

• K Kenstruct Ltd London · Main contractor

  Kenstruct Ltd is a construction company specialising in general and petroleum-related facilities, including gas stations, convenience stores, and car

• K Kessey Construction Ltd Edgware · Main contractor · 1-9 employees

  Kessey Construction is a London-based construction company with over 20 years of experience, delivering quality building solutions for residential and

• K Kev Construct Ltd Edgware · Loft conversions

  North London builders for loft conversions, extensions and renovations. Checkatrade rated 9.67/10. Free fixed-price quotes from your local Edgware tea

• K Kg Constructs Ltd Sidcup · Main contractor

  KG CONSTRUCTS LTD is a dynamic general contractor with a team of seasoned professionals delivering high-quality construction and renovation projects.

• K Khaans Builders Ltd London · Main contractor · 1-9 employees

  Khaans Builders Ltd specializes in residential, commercial, and industrial construction. We deliver exceptional quality, sustainability, and customer

• K Khandhar Ltd Uxbridge · Main contractor

  Khandhar Ltd is a UK-based company specializing in the supply of high-quality cold drinks, snacks, and packaged food products. Focused on freshness, t

• K Khater Ltd London · Main contractor

  Khater Ltd is a professional building company in London, offering a wide range of services with a focus on quality, reliability, and customer satisfac

• K Khinda Company Ltd London · Main contractor

  KHINDA COMPANY LIMITED is a construction company based in London, SE18 1HW. Specialising in the construction of commercial and domestic buildings.

• K Killoughery Construction Ltd Mitcham · Main contractor · 10-49 employees

  Family construction and development business established in 1990. Celebrating 35 years in 2025.

• K Kilnbridge Structural Services Ltd London · Main contractor

  Kilnbridge is the UK's leading structures specialist, known for delivering complex and iconic construction and infrastructure projects across the UK.

• K KIM C&D London · Main contractor · 1-9 employees

  KIM Construction and Development offers comprehensive construction and development services, specializing in project management from architectural des

• K Kingstons Construction Ltd Caterham · Main contractor

  Kingstons Construction of Caterham, Surrey: new builds, extensions, refurbishments, loft conversions, garden rooms and garage conversions across Surre

• K Kiri Construction Ltd Edgware · Main contractor

  Kiri Construction Limited is a general building and construction company based in North West London, servicing the London and Home Counties area with

• K Kirk Construction and Consulting Ltd London · Design & build

  Trusted builders in Horsham covering West Sussex and Surrey. Driveways, extensions, new builds, civil engineering & more. Book a free consultation tod

• K KITAN CONSTRUCTIONS LTD London · Main contractor

  Your trusted construction & renovation partner in London. We build your vision, exceeding expectations with quality craftsmanship and customer satisfa

• K Kleon Construction Ltd Bromley · Main contractor · 1-9 employees

  Kleon Construction Ltd offers exceptional construction services blending innovation, quality, and efficiency. We create durable, functional, and aesth

• K Klimstar Ltd Greenford · Main contractor · 1-9 employees

  Klimstar specialises in prime and super-prime construction in London and the home counties, new builds, remodels, conversions, subterranean.

• K Klonik Building Services Ltd London · Main contractor

  Klonik Building Services Ltd offers quality building, renovation, painting, and decorating services across London. Specializing in extensions and loft

• K Km Build T/S Decrew Ltd Chertsey · Main contractor · 1-9 employees

  Km Build T/S Decrew Ltd is a main contractor company based in Chertsey, registered at Companies House in 2022.

• K KM Lynskey London · Main contractor

  KM Lynskey is an international construction services company established in 2009, delivering projects to the highest standards, on time and within bud

• K Kmk Construction Ltd Enfield · Refurbishment · 1-9 employees

  KMK Construction Ltd offers a comprehensive range of construction services including commercial refitting, residential remedial works, SFS, screeding,

• K Knight Harwood Ltd London · Main contractor · 50-249 employees

  Knight Harwood are a main contractor offering construction and engineering experience, with a track record of working with discerning clients and exce

• K Knt Development Ltd London · Property developer · 1-9 employees

  KNT Development is the real estate arm of KNT Group, a private equity firm. We are involved in notable commercial and residential projects, investing

• K Kojo Construction Ltd London · Main contractor · 1-9 employees

  ACCA-qualified general contractors: large-scale builds, home renovations, loft conversions and new-build flats.

• K Kolos Dry Lining Service Ltd London · Main contractor · 1-9 employees

  Kolos Dry Lining Service Ltd is a main contractor company based in London, registered at Companies House in 2024.

• K Kolrn The Builder Ltd London · Main contractor · 1-9 employees

  Kolrn The Builder Ltd is a main contractor company based in London, registered at Companies House in 2021.

• K Koosh Builders Ltd Romford · Main contractor

  Koosh Builders Ltd is a construction company based in Romford, Essex. We offer a range of building services to residential and commercial clients.

• K Korabi Build Ltd Gravesend · Main contractor

  Korabi Build Ltd is a main contractor company based in Gravesend, registered at Companies House in 2024.

• K Kovaci Builders Ltd London · Main contractor · 1-9 employees

  Kovaci Builders Ltd offers tailored end-to-end construction services in London, specializing in general building, refurbishments, loft conversions, an