Extension builders in London

2700 extension builders across London.

• 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 Insight Probuild Ltd Pinner · Design & build · 1-9 employees

  Honest | Trustworthy | Reliable. An experienced construction company serving the residential market, specialising in lofts, extensions, and design & b

• I Inspire Design & Build (London) Ltd Brentford · Design & build · 1-9 employees

  Inspire Design & Build offers high-end design and build services for residential and commercial projects in London and the South-East, specialising in

• 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 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 Integral Builders Wimbledon Chase · Extensions · 1-9 employees

  Integral Builders delivers luxury home extensions, loft conversions, renovations and architect-led building projects across South London and Surrey.

• I Intellect C&C. LTD Stanmore · Civil engineering

  Intellect C&C Limited, specializing in Structural Drawings, Planning Permissions and Structural Inspections. Leaders in Quality Structural Solutions f

• 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 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 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 Ioluri Pro Ltd East Ham · Main contractor

  Providing trusted construction management, extensions, refurbishments, and building maintenance with care for your home or business.

• 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 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 Iskcon Construction Ltd Edgware · Refurbishment · 1-9 employees

  Iskcon Construction Ltd is a local and trusted building company in Edgware, offering a wide range of professional, reliable, and friendly services tai

• I Isleworth Building Contractors Ltd Isleworth · Refurbishment · 1-9 employees

  A family company with over 25 years of building experience. Specialising in renovations, extensions and conversions. We create homes that our clients

• I Italico Renovation Bromley · Refurbishment · 1-9 employees

  Bespoke building work with high-quality finish. Specialising in home renovation, carpentry, extensions, garage conversions, and painting.

• 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 Ivenco Builders Ltd Loughton · Loft conversions · 1-9 employees

  Ivenco Builders is a Loughton, Essex based building company providing high quality work to homeowners and businesses within the M25 Greater London are

• 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 & F Property Services Ltd Whyteleafe · Refurbishment · 1-9 employees

  J & F Property Services Limited offers high-quality construction solutions for domestic and commercial projects, specializing in new builds, extension

• 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 & M Loft Conversion Ltd Dagenham · Carpentry & joinery · 1-9 employees

  J & M Loft Conversion Ltd is a London-based construction firm with over 10 years of experience, offering a wide range of building services including c

• J J Gibbs Building Services Ltd Watford · Refurbishment

  J Gibbs Building Services Ltd offers expert building, roofing, and landscaping services in Watford. Quality craftsmanship tailored to your needs-turn

• J J Z Windows Ltd Hornchurch · Windows & doors

  JZ Windows offers over 30 years of expertise in crafting and installing high-quality uPVC and aluminium windows, doors, and conservatories. Crafted fo

• J J.P.F. Clarke (Construction) Ltd London · Main contractor

  JPF Clarke is a family-run construction company with over 40 years of experience in North London. They offer a comprehensive range of building service

• J J.S.F.Construction Ltd Romford · Main contractor · 1-9 employees

  J.S.F Construction Ltd is an experienced construction company specialising in renovation, new builds, refurbishments, extensions, rooftop development,

• J J.W. Bros Construction Ltd Surrey · Carpentry & joinery · 1-9 employees

  J.W. Bros Construction Ltd: Craftsmen specialising in bespoke woodwork, furniture, staircases, doors, windows, kitchens, roofing, extensions, and gard

• J J.W. Cannon & Co. (1948) Ltd Surrey · Main contractor

  A family-run building firm established over 70 years, JW Cannon & Co Ltd offers a wide range of building services including new builds, extensions, an

• J J&3aco Ltd London · Refurbishment · 1-9 employees

  J & 3 Aco Ltd is a London-based construction company with over 3 years of experience, offering a wide range of building services for domestic properti

• J J&M Home Improvements and Construction UK Ltd Hounslow · Kitchen fitting · 1-9 employees

  J&M Home Improvements Hounslow West Middlesex are a premier bathroom and kitchen company that can design in 3D to give you the ultimate preview of how

• J Jacques Alain Ltd Gravesend · Bathroom fitting

  Jacques Alain Ltd offers expert renovation services including kitchen transformations, bathroom refurbishments, property extensions, and loft conversi

• 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 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 Delamare Ltd Orpington · Extensions

  James Delamare Ltd is a professional building service in Bromley, Kent, offering extensions, loft conversions, renovations, and general construction w

• J Jan Construction Ltd Isleworth · Main contractor · 1-9 employees

  Jan Construction Ltd provides reliable, high-quality construction and building services across London. We are committed to excellent workmanship, atte

• J Jason Bros Kingston Upon Thames · Refurbishment

  Jason & Bros is a construction and renovation company in London, delivering bespoke, high-quality spaces. We offer remodeling, kitchen renovations, fl

• J Jassi Construction Ltd Hayes · Loft conversions

  Jassi Construction are specialists in loft conversions, extensions, and construction services in West London. A family-run business committed to quali

• J Javicon London · Refurbishment

  JAVICON LTD specialises in full-scale renovations, refurbishments, and turnkey construction projects across London. Quality craftsmanship, reliable ti

• J Jawandha Builders Ltd London · Extensions · 1-9 employees

  Jawandha Builders offers high-quality building and renovation services, specializing in home extensions, roofing, and interior upgrades. We focus on r

• J Jaylea Construction Ltd Leatherhead · Extensions

  Specialising in complex projects, Jaylea Construction Ltd offers a wide range of services for domestic or commercial clients, delivering reliable, lon

• J Jazz Construction London Ltd London · Main contractor

  Jazz Construction is a leading construction company in London offering a wide range of building and construction services. Established in 2019, we are

• J Jb Building London Ltd London · Refurbishment · 1-9 employees

  JB Building London Ltd offers a comprehensive range of building services with over 15 years of experience in residential construction. We are committe

• J Jb Fit-Out Ltd Chigwell · Fit-out & interiors · 1-9 employees

  JB Fit-Out Ltd is a trusted fit out and refurbishment company based in Chigwell, offering reliable, skilled and personal service for projects of all s

• J JC London Construction London · Main contractor

  JC London Construction delivers high-quality services from conception to completion for major renovations and small jobs. They assist with planning ap

• J Jd Build Ltd Greenford · Refurbishment

  JD Build Ltd is a London-based refurbishment company with over 20 years of collective experience, offering bespoke solutions for creating beautiful li

• J Jd Construction & Roofing Ltd London · Roofing · 1-9 employees

  JD Construction & Roofing Ltd offers professional roofing and building services in Bournemouth and Dorset, specializing in new roofs, flat roofing, an