Main contractors in London

2659 construction main contractors based in and around London.

• I Imperial Elite Construction Ltd London · Main contractor · 1-9 employees

  Imperial Elite Construction offers a wide range of building and construction management services, from new builds to refurbishments, commercial to res

• I Imperial Plus Construction Ltd London · Refurbishment · 10-49 employees

  Superior construction services from Imperial Plus Construction. Our construction services are available throughout London and the South East.

• I Imperial Way Ltd London · Loft conversions

  Leading construction company in London, Essex, Surrey. Loft conversion, rear or side extension specialists. Property refurbishment London.

• I Imperium Construction Management Ltd London · Main contractor

  Yorkshire based project and construction management services. We provide structured leadership from inception to completion, managing the interface be

• I Impressive Paint Ltd London · House builder

  Impressive Paint Limited offers professional house construction, renovation, and landscaping services across London. Specialising in residential prope

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

  Specialist house extensions, loft conversions and full home renovations across Ashford and Surrey. 15+ years' experience, fully insured. Book a free c

• I In Home Building Ltd London · Main contractor

  In Home Building Ltd is a London-based construction company with over 25 years of experience. They offer a wide range of building services for domesti

• I In:arch London · Design & build

  In:arch delivers end-to-end residential building services in London, specialising in loft conversions, house extensions and full home renovations; fro

• i inficosolutions London · Extensions

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

• 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 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 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 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 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 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 Home Solutions Ltd London · Design & build

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

• 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 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 Insignia Workplace Ltd London · Refurbishment

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

• 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 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 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

• 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 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 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 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 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 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 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 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 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 Interni Deco Ltd London · Design & build

  InterniDeco transforms London homes with elegant design and masterful craftsmanship, offering bespoke joinery, interior design, and full project manag

• I Interskills Solutions Ltd London · Main contractor · 1-9 employees

  Construction company in London specialising in extensions, loft conversions, renovations, kitchen and bathroom installations, and property refurbishme

• I Intsol Construction Ltd London · Refurbishment · 1-9 employees

  IntSol Construction Ltd is a London-based construction company offering a comprehensive range of services including refurbishment, fit-out, and M&E co

• I Investre Ltd London · Property developer

  London-based property investment and development business focused on Prime Central London, Kensington, Chelsea, Mayfair, Marylebone, Bayswater, Knight

• I Invicta Maintenance Ltd London · Refurbishment

  Invicta Maintenance Ltd offers a comprehensive range of building services, specialising in refurbishment and fit-out projects for commercial and resid

• I Invigorate Homes Ltd London · Design & build

  Invigorate Homes specialises in bespoke, luxurious residential projects of the highest standard and quality, with a proven track record spanning over

• I Ipsum Constructions Ltd London · Design & build · 1-9 employees

  Ipsum Constructions offer a complete design & build solution from inception to completion. They operate in and around the London area and undertake wo

• I Iralia Renovation Ltd London · Refurbishment

  Iralia Renovation Portal manages 1 data type including enquiries. Helps you organize, track, and share your work in 1 place for teams and solo users.

• I Ironbuild Construction Ltd London · Fit-out & interiors

  London's trusted retail and commercial construction company. 200+ projects delivered. Fit-outs, new builds, refurbishments. Request a quote today.

• I Iuind Ltd London · Main contractor · 1-9 employees

  Building Specialists | Tailored Solutions for Homes, Businesses, and Industrial Spaces! Fixed Price Projects, Quality and Standards, Precision Plannin

• I Iwik Construction Ltd London · Main contractor

  Iwik Construction is a well-established building company in Southwest London, offering a full range of construction and renovation services. They prid

• J J & G Contractors Ltd London · Refurbishment

  J&G Contractors Ltd is a family-owned business specialising in property management, offering a wide range of services from major projects to planned m

• J J & L Construction Ltd London · Extensions · 1-9 employees

  J & L Construction Ltd are your local experts for all building services in Valley Side, Waltham Forest, London. From extensions through to complete re

• J J O'Connor London · Heating & ventilation

  J O'Connor is a national mechanical and electrical contractor established over 25 years ago, serving public, commercial, and private sectors with a 24

• J J.C CONSTRUCTION London · Concrete works

  John Cannon Construction offers high-quality concrete solutions and groundwork services in London. With over two decades of experience, we provide com

• J J.D. Sheerin Properties Ltd London · Painting & decorating

  Discover exceptional property maintenance and interior decorating solutions with J.D. Sheerin Properties. We specialize in elevating your living and w