Subcontractors in London

3168 construction subcontractors based in and around London.

• I Instant Builders Ltd London · Extensions · 1-9 employees

  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 Instant Heating and Plumbing Services Ltd London · Plumbing

  Instant Heating & Plumbing provides expert plumbing, boiler repairs, heating services, gas safety services in London, Wembley, Neasden, Dollis Hill, a

• I INSULATE MY CONSERVATORY LTD. London · Roofing

  Family-run business specialising in conservatory roofing, insulation, and roof repairs across the UK. Offering expert services to make conservatories

• I INSULATION SPECIALISTS LTD London · Insulation

  Insulation Specialists Ltd offers expert insulation services, focusing on renewable and environmentally friendly energy sources to create comfortable

• I Insulpro Roofing Ltd London · Roofing

  Insulpro Roofing Limited is a UK-based company specializing in roofing and insulation services. Contact us for your project needs.

• I Integral Cooling Technologies London · Heating & ventilation · 250+ employees

  Integral Cooling Technologies specialises in tailored, independent cooling solutions for efficient, resilient, and sustainable built environments. Par

• I Integrate Fitouts Ltd London · Fit-out & interiors · 1-9 employees

  Integrate Fitouts Ltd is a premier interior construction contractor specializing in office fitouts, shopfitting, and refurbishment work for commercial

• I Integrated Scaffolding Services Ltd London · Scaffolding

  Integrated Scaffolding Services Ltd offers professional scaffolding solutions across the UK. We provide safe, reliable, and efficient scaffolding hire

• I Integro Fitout Ltd London · Fit-out & interiors · 10-49 employees

  Integro is a leading retail fit-out company and shop fit-out contractor working across the UK, delivering exceptional retail environments for customer

• I INTEKRON Electrical Ltd London · Electrical

  INTEKRON Electrical Ltd is a London-based electrical contractor providing installations, EICR testing, and remedial works for commercial and residenti

• I Interfix Scaffolding Ltd London · Scaffolding · 1-9 employees

  Interfix Scaffolding Ltd are an independent scaffolding contractor based in Central London providing a safe and reliable service.

• 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 Interlocks London · Security systems

  Expert locksmith services in Gravesend, offering 24/7 emergency support, precise lock fitting, and non-destructive entry. Safeguard your property with

• I International Air-Conditioning London · Air conditioning · 1-9 employees

  Your trusted partner for HVAC solutions, Highly rated Airconditioning company ensuring comfort and efficiency in every space.

• I International Windows Group Ltd London · Windows & doors · 1-9 employees

  Bespoke timber windows and doors in London. Made to measure, expertly installed, and built to last. Get your free quote today.

• I Intex Finishing Ltd London · Painting & decorating · 1-9 employees

  Prime residential painting and decorating contractors and installers of fine wallpapers and coverings based in London.

• I IQ Plumbing London London · Plumbing

  IQ Plumbing is London's leading provider of expert plumbing, heating, and boiler services. Available 24/7 for emergencies. Gas Safe registered and ful

• 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 Iron Flag global London · Electrical · 1-9 employees

  Iron Flag Global specialises in mission-critical power infrastructure decommissioning and asset recovery across the UK and Europe. They manage valuati

• I Iropeaccess Ltd London · Scaffolding

  Specialist rope access company providing work-at-height services across London and the UK. IRATA certified. Get a free quote today.

• i iSecurity Systems Limited London · Security systems · 1-9 employees

  Ensure your safety with iSecurity's CCTV, intruder alarms, and access control systems. Managed solutions include BT Redcare or standalone speech diale

• I Islington Electrical London · Electrical · 1-9 employees

  Islington Electrical Limited offers a full range of professional electrical services including EICR Certificates, Commercial Services, New Installs, P

• I Iv Yo Carpentry Ltd London · Carpentry & joinery

  IV YO CARPENTRY LTD is a family business established in 2019, specialising in bespoke furniture manufacturing. We offer high-quality, custom-made MDF

• I Ivell Plumbing & Heating Ltd London · Plumbing · 1-9 employees

  Ivell Plumbing & Heating Ltd offers 24/7 emergency plumbing, boiler breakdowns, gas safety inspections, central heating installation, and leaky pipe r

• J J & G Contractors Ltd London · Refurbishment · 1-9 employees

  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 A Brooks Mechanical Services Ltd London · M&E contracting · 50-249 employees

  JA Brooks is a mechanical services company designing, manufacturing, and fitting systems for water supply, sanitation, heat, fresh air, and gas across

• J J F TORO London · Carpentry & joinery

  JF Toro Ltd offers expert carpentry and woodworking services, specializing in kitchens, decking, doors, and fitted wardrobes. With 20 years of experie

• J J Ford Heating & Plumbing Services Ltd London · Plumbing · 1-9 employees

  J Ford Heating & Plumbing offers expert boiler installation in Surbiton and reliable heating and plumbing services across South West London and Surrey

• J J O'Connor London · Heating & ventilation · 10-49 employees

  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 Pearson Trading Ltd London · Heating & ventilation · 1-9 employees

  Professional boiler installations, central heating, MVHR systems & plumbing services across London. 20 years experience. Same-day callouts available.

• J J Smith & Sons London · Heating & ventilation · 1-9 employees

  J Smith & Sons Ltd in Epping offers reliable heating, plumbing, boiler and central heating services to its clients across Essex & Herts.

• J J.A. Laws Roofing Ltd London · Roofing · 1-9 employees

  J.A. Laws Roofing Ltd offers quality roofing services in E17 and surrounding areas, including repairs, new roofs, tiling, slating, leadwork, gutter cl

• J J.A. RATTIGAN & SON LTD PLANT HIRE London · Plant hire · 10-49 employees

  J.A. Rattigan & Son Ltd is a leading plant hire contractor in the UK, specializing in suction excavation and utilities. With over 40 years of experien

• 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&A Timber Solutions Ltd London · Carpentry & joinery · 1-9 employees

  Bespoke joinery in London. Expert team delivering precise, high-quality craftsmanship for kitchens, cabinetry, staircases, and woodwork tailored to ev

• J Jackson Remediation London · Site clearance · 1-9 employees

  Jackson Remediation is a full-service remediation and enabling contractor, committed to delivering high quality services at competitive prices across

• J Jacobs Painting And Decorating Ltd London · Painting & decorating · 1-9 employees

  Jacobs Painting & Decorating Ltd is a renovation business providing redecorating services in London and surrounding areas. Specialising in high-end in

• J Jad1 Construction Ltd London · Main contractor · 1-9 employees

  JAD1 Construction is a dynamic construction company offering a wide range of services including electrical, plumbing, carpentry, and extensions. We ar

• J Jade Roofing Experts Ltd London · Roofing

  Expert roofers & roofing specialist in London. Free roof inspection, 25-year guarantee, fully insured. Call 07955 558880 today.

• J Jakaj Ltd London · Refurbishment · 1-9 employees

  JAKAJ LTD offers property management, refurbishment, loft conversions, extensions, and maintenance services across London. Experienced team for landlo

• J James A. Turner Ltd London · Plumbing · 10-49 employees

  A Trusted Local Company Since 1968. For nearly six decades, James A Turner Heating & Plumbing has built a reputation across Hertford for dependable pl

• J James Pounds Bespoke London · Kitchen fitting · 1-9 employees

  James Pounds Bespoke creates stunning custom kitchens across Essex & surrounding areas. From design to installation, exceptional craftsmanship guarant

• J James Winney Heating And Gas Ltd London · Plumbing

  Plumbers and Gas Engineers in Streatham, South London. Offering boiler installation, central heating, plumbing, gas works, and bathroom refurbishments

• J Jb Carpentry Alcoves Ltd London · Carpentry & joinery · 1-9 employees

  JB Carpentry Alcoves LTD specialises in bespoke, hand-painted MDF fitted furniture, including wardrobes, alcove cupboards, and bookcases. Established

• J Jb Electrix Ltd London · Electrical · 1-9 employees

  London electricians specialised in testing and installation with over 6 years experience. Providing quality, detailed, and safe electrical services.

• J JB Riney London · Civil engineering · 50-249 employees

  JB Riney is a London-based civil engineering and highways contractor specialising in infrastructure, public realm, and road surfacing services. Founde

• J Jbl Plumbing & Heating Ltd London · Plumbing · 1-9 employees

  JBL Plumbing & Heating offers comprehensive plumbing and heating services across London, including emergency repairs, boiler services, and residential

• J JC Doors Ltd London · Windows & doors

  Automatic door installation, servicing, and upgrades in Kent by JC Doors Ltd. Reliable, compliant, and efficient solutions.

• J Jc Marble Ltd London · Tiling · 1-9 employees

  JC Marble LTD are experienced in fitting and providing bespoke marble with over 20 years experience. We strive to provide the best quality marble and