Design & build main contractors in the UK

5282 UK main contractors offering design & build work.

• O O'Keeffe Building Services Ltd Nottingham · Main contractor · 10-49 employees

  O'Keeffe Building Services offers luxury new builds, extensions, renovations, and commercial building services, alongside solar installation solutions

• O O'Mac Construction Ltd Isle Of Lewis · Main contractor · 50-249 employees

  O'Mac Construction is a quality, trusted building contractor, and trades supplier, specialising in all types of residential, commercial, and industria

• O Oa Design & Build Ltd London · Design & build

  Premium extensions, renovations, and new builds across Bristol, Birmingham and the wider region. Fixed price contracts, clear programmes, and honest d

• O Oadby Builders Leicester Ltd Leicester · Design & build · 1-9 employees

  Oadby Builders offers expert building & renovation services. With 30 years of experience, contact us for a free quote today!

• O Oak Construction Projects Ltd Leicester · Main contractor

  Oak Construction Projects delivers high-quality construction solutions with expertise and integrity across the UK. Specialising in new builds and resi

• O OAK HOUSE DESIGN & BUILD LTD Milton Keynes · Design & build · 1-9 employees

  Experienced design and build company in Hertfordshire specialising in kitchen and bathroom refurbishments, home extensions and full house renovations.

• O Oak Interiors Ltd Castleford · Shopfitting

  Nationwide custom shopfitters and interior fit-out contractors to the leisure, retail and commercial sectors. Offering project management, cost manage

• O Oak Leaf Renovations Ltd Tewkesbury · Refurbishment · 1-9 employees

  Oak Leaf Renovations is a full-service building improvement company specialising in renovations, extensions, kitchens, bathrooms and painting & decora

• O Oakbridge Homes Ltd St. Albans · House builder · 10-49 employees

  Oakbridge Homes is a property developer and main contractor specialising in bespoke residential developments. They transform sites into high-quality h

• O OakenStone Matlock · Design & build · 1-9 employees

  OakenStone is a 'one-stop shop' in Matlock, Derbyshire, offering Architecture, Design, Planning Advice, Project Management, and Construction for new b

• O Oakes Design & Build Ltd Cheadle · Extensions · 1-9 employees

  Oakes Design & Build offers professional building services for homeowners in Manchester and Cheshire, specializing in house extensions, renovations, g

• O Oakfield Developments Norfolk Ltd King'S Lynn · Main contractor · 1-9 employees

  Trusted family-run builder in Norfolk with 25+ years' experience. Fully insured, all work guaranteed, and rated highly on TrustATrader & Checkatrade.

• O Oakhills Developments Ltd Calne · Main contractor · 1-9 employees

  Oakhills Developments Ltd is a construction company in Bremhill, Wiltshire, specializing in residential and commercial projects, including custom home

• O Oakland Be Ltd Bromsgrove · Design & build · 1-9 employees

  Oakland BE Ltd provides comprehensive construction services from cost evaluation and design to planning and construction for commercial, medical, and

• O Oaklea Builders Ltd Aldershot · Design & build · 1-9 employees

  Surrey residential building contractors, building and renovating homes in, Farnham, Camberley, Lightwater, Guildford and Godalming Areas

• O Oakleigh Contracts Ltd Halesowen · Cladding

  Oakleigh Contracts Ltd: Passive Fire Protection & Rectification Experts. Specialising in cladding, fire stopping, and cavity fire barriers with EWS1 s

• O Oakley Food Projects Ltd Wokingham · Design & build · 10-49 employees

  Oakley Food Projects offers expert food factory design, build, construction, refurbishment and project management with complete turnkey solutions acro

• O Oakley Green Conservatories Thatcham · Extensions · 1-9 employees

  Bespoke conservatories, orangeries & extensions across Berkshire & Oxfordshire. Family-run installers in Thatcham with 5-star reviews. Get a free quot

• O Oakley Green Design and Build Bristol · Design & build · 10-49 employees

  Bristol's premium designer and installer of quality home improvement solutions since 2003. Contact our expert team to book your free home visit

• O OAKLEY'S HOME IMPROVEMENT'S GROUP LTD Doncaster · Refurbishment

  Oakleys Home Improvements offers bespoke home renovation services in Doncaster, specialising in extensions, kitchens, bathrooms, garden cabins, and ep

• O Oakmoore Homes Ltd Chessington · Design & build

  Oakmoore Homes offers premier home design and bespoke construction services in Surrey and London, transforming dream designs into tangible realities w

• O Oakridge Extensions Ltd Cardiff · Extensions · 1-9 employees

  Oakridge Extensions Ltd specialises in building spaces that create memories, offering bespoke services from initial proposal to completion. They are c

• O Oakton Developments Ltd Epsom · House builder · 1-9 employees

  Oakton Developments specialises in building high quality new properties in Epsom and Ewell, Surrey, for discerning buyers. Established in 2002, they h

• O Oaktree Interiors Ltd Wokingham · Design & build · 10-49 employees

  Oaktree Interiors transforms workplaces across the South East with bespoke, imaginative, and cost-efficient office design, fit-out, and refurbishment

• O Oaktree Living Stockton On Tees · House builder · 10-49 employees

  Oaktree Living delivers new build affordable housing developments for social housing providers across the North East, partnership, land-led and tender

• O Oakwood Collective Stowmarket · Main contractor

  Oakwood Collective are Suffolk principle contractors delivering bespoke house extensions, renovations, new builds, kitchens, bathrooms & commercial bu

• O OAKWOOD LOFTS Lancing · Loft conversions · 1-9 employees

  Unlock your home's potential with Oakwood Lofts. Expert loft conversions in West Sussex, adding space and value to your property. Contact us for a fre

• O Oakwood Properties (Sc) Ltd Renfrew · Design & build

  Oakwood Properties (SC) Ltd is a professional joinery and building company based in Central Scotland, offering design and build, extensions, refurbish

• O Oakworth Construction Ltd Southwell · Main contractor · 1-9 employees

  Oakworth Construction is a multi-disciplined main contractor specialising in the delivery of high-quality construction projects across the private res

• O Oakwrights Ltd Farnham · Timber frame · 1-9 employees

  Oakwrights have been building bespoke new oak frame structures and repairing Listed Buildings since 1995. Combining the skills of experienced carpente

• O Obbard Ltd Colindale · Property developer · 10-49 employees

  Obbard is a London-based property company founded in 1994, offering specialist services in property development, design & build, and acquisition. They

• O Obedair Ltd Plymouth · Refurbishment

  Obedair Construction is a solutions-focused construction business based in Plymouth, UK, delivering quality projects across various sectors with a str

• O OBG Homes Glasgow · Design & build · 10-49 employees

  OBG Homes are Glasgow's most trusted builder of single storey kitchen extensions. We offer a complete turnkey service for self-build homes, loft conve

• O Obsession Design And Build Ltd Weston-Super-Mare · Design & build · 1-9 employees

  Design and build home extensions, conservatory transformations, home renovations, professional decorators and plastering services, made to measure war

• O Obsidian Design & Build Ltd Macclesfield · Design & build · 1-9 employees

  Professional construction company delivering high-quality design and build services for residential and commercial projects. Offering end-to-end proje

• O Obstgarten Homes Watlington · Restoration & heritage · 1-9 employees

  Luxury holiday homes in Devon, Dorset and Austria. Beautiful heritage homes, coastal escapes, group accommodation, boutique stays.

• O Octa Design & Build Ltd Cambridge · Design & build

  Octa Design & Build: Building, Roofing & VELUX Certified Contractors based in Royston, Hertfordshire. Committed to quality construction.

• O Octane Construction Ltd Pudsey · Main contractor · 1-9 employees

  Octane Construction is a UK construction company specialising in commercial construction, design and build, project management, civil engineering, ref

• O Octo Constructions Ltd Slough · Design & build

  Octo Construction Ltd specialises in construction engineering, offering expertise from design and planning through to all construction work. We have a

• O Od Contractors Ltd Huddersfield · Extensions · 1-9 employees

  Building contractors in Huddersfield & West Yorkshire specialising in home extensions, loft conversions & refurbs. Family run, 20 years est. Free surv

• O OD CREATE London · Fit-out & interiors · 10-49 employees

  Award-winning office fit-out company delivering both turnkey design and build projects and traditional fit-out contracts.

• O ODIN Construction Seaham · Design & build

  ODIN Construction offers professional building services across the North East, specialising in turnkey solutions for domestic and commercial clients.

• O Office Insight Ltd Altrincham · Design & build

  Office Insight offers office design, fit out and refurbishment services to rejuvenate workplaces and enhance staff productivity. We create brand-defin

• O Office4Garden London · Design & build

  Bespoke garden offices designed for productivity and built to last. We offer a stress-free, end-to-end service, delivering exceptional quality and fun

• O Offthebreeze Ltd Northampton · Design & build · 1-9 employees

  Specialists in designing and building high-performance veterinary clinics, hospitals, and laboratories across the UK.

• O Ofstrand Ltd Essex · Fit-out & interiors

  Ofstrand is a construction and fit-out company offering diversified services with superior quality, covering London & South-East England. They special

• O Og Conversions Ltd Dunmow · Loft conversions

  OG Conversions Ltd - loft conversion specialists serving Essex, Hertfordshire and Cambridge. We offer exceptional loft conversion services in Saffron

• O OG Design & Build Ltd Kingston Upon Thames · Design & build

  OG Design & Build Ltd offers professional and experienced building services in Kingston upon Thames, handling all aspects of building projects. Expand

• O Ogilvie Construction Ltd Stirling · Main contractor · 1-9 employees

  One of Scotland's top 10 building contractors and construction companies, with a proven track record in the construction of commercial, public, indust

• O Ogival Ltd London · Refurbishment

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