Extension builders in the UK

8945 extension builders listed from the UK register.

• O Ogival Ltd London · Refurbishment · 10-49 employees

  Ogival offers professional property modifications and alterations, including refurbishments, basements, extensions, and loft conversions. With a desig

• O Ohmega Construction Abbots Langley · Refurbishment · 1-9 employees

  Ohmega Construction: Your trusted partner in building better homes. Specialising in kitchens, refurbishments, and extensions, we bring your ideas to l

• O Oil Tank Change Newmarket · Utilities · 1-9 employees

  Need an oil tank? Our certified experts provide fast, safe, and affordable oil tank replacement services. Get your free quote today!

• O OJN Building & Roofing Ltd Walsall · Extensions

  Reliable building and roofing company based in Walsall, serving Aldridge, Birmingham, Cannock, and surrounding areas. Specialising in extensions, bric

• O Oka Carpentry Ltd Newton Abbot · Carpentry & joinery · 1-9 employees

  Oka Carpentry Ltd offers expert carpentry, home renovations, shop fitting, and fire door installations for residential and commercial clients in Torqu

• O Okaro Construction Ltd Maidstone · Extensions

  Okaro Construction delivers exceptional building services, transforming spaces with expertise in extensions, renovations, landscaping, driveways, and

• O Okemb Services Ltd Sheffield · Refurbishment

  Okemb Services Limited offers quality, reliability, and agility in home renovation and building projects, with a personal approach to client collabora

• ö öKohaus Cornwall Ltd St. Columb · House builder · 1-9 employees

  Ökohaus Cornwall builds certified Passivhaus and high performance homes using natural and sustainable materials. We work closely with architects from

• O Old Oak Carpentry Ltd Southampton · Carpentry & joinery · 1-9 employees

  Old Oak Carpentry is a trusted, family-run business in Hampshire, dedicated to delivering home improvement services to the highest standard. We transf

• O Oldfield Construction (London) Ltd Ruislip · Main contractor · 1-9 employees

  Oldfield Construction Limited offers home improvements in Ruislip. Qualified builders with 51+ years of experience, delivering durability and reliabil

• O Olive Building Ltd Wickford · Main contractor · 1-9 employees

  Olive Building LTD is a reputable building company in Essex, established in 1997, specializing in new builds, extensions, renovations, and conversions

• O Oliver Building Services Ltd Hatfield · Main contractor · 1-9 employees

  Oliver Building Services Ltd offers new builds, property extensions, loft conversions, home offices, garage conversions, and general building services

• O Oliver Fox Glasgow · Fire protection

  Oliver Fox provides 24/7 specialist biohazard, trauma, crime scene, hoarding, and emergency cleaning across the UK & Ireland. Fast, discreet, certifie

• O Ollie Mart Building Services Ltd Matlock · Main contractor · 1-9 employees

  Ollie Mart Building Services are builders in Matlock specialising in natural stone construction. Builders Matlock.

• O Olympia Projects Leeds · Design & build · 1-9 employees

  Olympia Projects Limited is an established, family-run commercial development business, delivering projects throughout the UK with over 55 years of ex

• O OLYMPUS BUILD LTD Dunstable · Main contractor · 1-9 employees

  Olympus Build Ltd offers new builds, extensions, and loft conversions with in-house architects and engineers. They cover Herts, Beds, Bucks, Northampt

• O Olympus Property Development Ltd Manchester · Main contractor

  Premium construction, structural works, renovations and property development across Manchester, Liverpool, Preston and the wider North West. Request a

• O Olympus Property Group Ltd London · House builder · 1-9 employees

  Olympus Property Group offers expert residential construction and surveying services in Hampshire, including new builds, renovations, loft conversions

• O Om Barker Builders Ltd Bagshot · Extensions · 1-9 employees

  OM Barker Builders Ltd is an experienced building company undertaking house extensions, garage conversions and more in Bagshot, Bracknell and the surr

• O Omega + Group Ltd London · Main contractor · 1-9 employees

  Omega Group is a leading construction and MEP contractor based in West London, delivering high-value projects across residential, commercial, and mixe

• O Omega Lofts Ltd Nottingham · Loft conversions · 1-9 employees

  Omega Lofts Limited specialises in loft conversions, home extensions, and fitted bathrooms/kitchens in Nottingham. Established in 2012, they offer pro

• O Omel Group Richmond · Extensions · 1-9 employees

  Omel Group offers comprehensive construction solutions across London and the South East, specializing in extensions, renovations, general construction

• O Ominiworks Ltd Bridgwater · Roofing

  Ominiworks offers quality construction services in the South West, specialising in roofing, driveways, patios, decking, fencing, and landscaping. Cont

• O Omni Construction (Edin) Ltd Edinburgh · Refurbishment

  OMNI CONSTRUCTION (EDIN) LTD offers residential construction, repair, and refurbishment services. Specialising in home improvements, maintenance, and

• O Omniform Ltd London · Main contractor · 1-9 employees

  Omniform is a London construction partner for architect-designed homes: whole-house refurbishments, structural work, basements, and new build properti

• O ON LEVEL CONSTRUCTION Manchester · House builder · 1-9 employees

  On Level Construction is a professional and highly regarded construction company based in Tameside, Manchester. With over 40 years collective experien

• O On Point Building & Joinery London · Main contractor · 1-9 employees

  On Point Building & Joinery Ltd offers expert building and joinery services in Blackpool and the North West. Quality craftsmanship for every project,

• O On Site Framing Ltd Redruth · Timber frame · 1-9 employees

  On Site Framing offer timber frame solutions across Cornwall. We provide cost effective timber frames which lower construction costs.

• O On Time Builders Ltd London · Refurbishment · 1-9 employees

  Ontime Builders Ltd specialises in high-end full refurbishment, renovation, bathrooms, kitchens, painting, decorating, plumbing, electrical repairs, e

• O One Bloomsbury Ltd London · Extensions

  One Bloomsbury is a London-based construction and building company offering bespoke design, construction, and maintenance services for residential and

• O ONEFIX Services Ltd Solihull · Refurbishment

  ONEFIX Services is a reliable home improvement company specializing in renovations, refurbishments, extensions, and conservatories, alongside expert p

• O Onkar Builders Slough · Main contractor · 1-9 employees

  Onkar Builders Ltd offers quality building, renovation, electrical, and heating/AC services across London and surrounding counties. Satisfaction guara

• O Onny Developments Ltd Craven Arms · Property developer

  Onny Developments Ltd in Craven Arms, Shropshire is a property development company with expertise in Barn Conversions, New Build Property, Commercial

• O Onsite Construction Ltd London · Painting & decorating · 1-9 employees

  London Onside Construction provides a comprehensive range of building services, specializing in home extensions, loft conversions, and steel construct

• O Onslow Construction Group Ltd Guildford · Refurbishment · 1-9 employees

  Onslow Construction is a Surrey-based building company specialising in high-quality home renovations and extensions. They offer a professional and per

• O Ontime Contractors Ltd Nottingham · Main contractor · 1-9 employees

  Ontime Contractors Limited is a construction company operating across the UK, offering a wide range of services from new builds to renovations. They f

• O Opal Access Group Newcastle Upon Tyne · Rail infrastructure · 1-9 employees

  Opal Access Limited delivers facilities management, maintenance, rope access, commercial cleaning, security, workwear, rail and renewables services ac

• O Opal Construction (Nw) Ltd Manchester · Main contractor · 1-9 employees

  100% customer satisfaction in the Greater Manchester area. Specialising in building work including extensions, decking, groundwork, staircases, window

• O Opek Home Ltd. London · Refurbishment · 1-9 employees

  London based Architecture, Construction & Supply company specialising in Conversions, Extensions and New Builds for Private and Commercial sectors.

• O Open Plan Renovation Colchester · Refurbishment

  Discover top-tier Open Plan Renovations with Open Plan Renovation Ltd in Colchester. Specializing in home extensions, loft conversions, and comprehens

• O Open Space Concepts Ltd Stoke-On-Trent · Design & build · 10-49 employees

  Open Space Concepts is the UK's leading designer and installer of bespoke outdoor living structures, transforming gardens into year-round spaces. With

• O Optimal Build Ltd London · Refurbishment · 1-9 employees

  Optimal Build Ltd is a London-based construction company specialising in residential and commercial projects, including refurbishments, extensions, an

• O Optimal Builders Ltd Grays · Loft conversions · 1-9 employees

  Optimal Builders offers a range of construction services including loft conversions, house extensions, refurbishments, and garden renovations. They fo

• O Optimal Developments Ltd London · Main contractor · 1-9 employees

  Builders in King's Lynn with 36 years on the tools. New builds, extensions and renovations across West Norfolk, all backed by our 12-month snagging gu

• O Optimo Build Co Ltd Peterborough · Extensions · 1-9 employees

  Optimo Build Co Ltd is a trusted building contractor specialising in home extensions, conversions, new builds, brickwork and stone masonry in Northamp

• O Optimodo Ltd Hemel Hempstead · Refurbishment

  Optimodo Limited, established in 2009 and based in Hemel Hempstead, offers professional building services in Hertfordshire and surrounding areas. We p

• O Optimum Construction Ltd Yeovil · House builder · 1-9 employees

  Prestigious builder of Impressive Luxury New Houses and Extensions in & around Wokingham, Berkshire. Specialising in large, bespoke houses.

• O Optirooms Service & Construction Southampton · Main contractor

  OptiGroup Holdings Ltd is a UK holding company combining construction (Optirooms), cleaning (OptiClean) and IT & AI systems (OptiSoft).

• O Opulent Construction Ltd Hereford · Main contractor · 1-9 employees

  Experienced builders in Hereford specialising in luxury homes, Passivhaus new builds, extensions, and bespoke renovations. High-end construction with

• O Opuluxe Building And Damp Solutions Ltd London · Damp proofing

  A family run building and damp proofing company covering South London and Kent. Professional, dependable, and known for high-quality solutions.