Construction companies in London

6631 construction companies based in and around London.

• 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 ONE CALL HVAC LTD London · Heating & ventilation

  Trusted local HVAC installation, repair, and maintenance services across all 32 London boroughs. Licensed, insured engineers with upfront pricing and

• O One Click Centre Limited London · Bathroom fitting · 1-9 employees

  Expert bathroom fitters offering seamless renovation services including showers, plumbing, electricity, underfloor heating, wallpapering, painting, an

• O One Stop Property London · Refurbishment · 1-9 employees

  London's All-in-One Property Services: Management, Renovations, and Much More. We offer turnkey delivery, eco-friendly solutions, and high-end finishe

• O ONE31 ENERGY LTD London · Solar PV

  ONE31 ENERGY LTD is a renewable energy company focused on reducing costs, cutting carbon, and building a sustainable future through innovative energy

• O OneProtect London · Heating & ventilation

  OneProtect offers boiler, central heating, and plumbing cover plans for homeowners and landlords, providing 24/7 support and specialist engineers for

• O Online Flooring Contracts Ltd London · Flooring

  Online Flooring is a Commercial Flooring Contractor offering quality flooring installation and maintenance services throughout London, Kent and South

• O ONSHORE TECHNICAL LTD London · Utilities

  Onshore Technical: Experts in gas sector recruitment, temp-to-perm contracts, design consultation, and project management.

• 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 Onyx Fire Ltd London · Fire protection

  Onyx Fire Ltd provides passive fire protection services across Milton Keynes, Buckinghamshire, the Midlands and London. Trusted fire protection contra

• 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 Wharf Ltd London · Property developer · 1-9 employees

  Open Wharf offers charming and comfortable apartment rentals in London's Canary Wharf and Vauxhall areas. Discover stylish living spaces designed for

• O OPTIESTIMATES London · Main contractor

  OptiEstimates offers expert quantity surveying and construction consultancy services in the UK and USA. With over 1000 completed projects, we provide

• 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 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 Optimal Heating & Cooling London · Heating & ventilation · 1-9 employees

  Gas, heating & air conditioning engineers for homes and businesses across the West Midlands & nationwide. Installations, servicing, repairs.

• O Optimal Intentions Ltd London · Painting & decorating

  Optimal Intentions Ltd is a UK-based company. The website is currently unavailable.

• O Optimal Property Maintenance London · Refurbishment · 1-9 employees

  Optimal Property Maintenance offers a comprehensive range of property maintenance services, including refurbishment, painting, roofing, electrical, an

• O Optimum Bid Services London · Property developer · 1-9 employees

  Optimum Bid Services is a UK-based bid and tender writing consultancy, specialising in helping construction contractors win public and private sector

• O Optimum Maintenance Solutions Ltd London · Electrical

  Optimum Maintenance Solutions LTD offers comprehensive electrical, mechanical, and automation maintenance services for manufacturing and process indus

• O Option One London · House builder

  Option One helps landowners across Kent, Surrey, Sussex, Essex and the South East unlock the true value of their land. Free land assessment. Zero cost

• O Optivolt Solutions Ltd London · Electrical

  Optivolt Solutions Limited provides specialist training in AI, digital skills, automation, IoT, and smart technologies, alongside electrical NVQ compe

• O Optosmart Ltd London · Solar PV

  OptoSmart provides modular smart poles and IoT-ready street lighting ecosystems for UK municipalities and developers, focusing on zero carbon footprin

• 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.

• O Opus Land Ltd London · Property developer · 1-9 employees

  Opus Land is an established real estate company with a successful track record of developing and investing in property across the UK for over 25 years

• O Orama Contracts London · Main contractor · 1-9 employees

  Orama Contracts is a construction recruitment and subcontracting firm, part of the Orama Group, offering flexible workforce solutions and trade packag

• O Orange Apple Ltd London · Concrete works · 1-9 employees

  Orange Apple Ltd is a UK-based company. The website is currently under development and may require authorization to access.

• O Orange Eco Roofing Ltd London · Roofing

  Roof overcladding and roofing services for homes and businesses. Extend roof life, improve energy efficiency and reduce disruption with Orange Eco Roo

• O Ore Drylining Ltd London · Drylining

  Ore Drylining Ltd offers specialist drylining, plastering, suspended ceilings, acoustic solutions, fire protection, and fit-out services across reside

• O Ori Electrical Ltd London · Electrical

  Ori Electrical Ltd is a professional electrical services company offering installations, repairs, maintenance, and upgrades for residential and commer

• O Oriel Glass Ltd London · Glazing

  Oriel Glass: Experts in bespoke glazing solutions, offering exquisite windows, seamless sliding doors, and stunning structural glazing. Precision craf

• O Oriental Light (UK) Ltd London · Property developer

  Premier lifestyle property developer listed on Bursa Malaysia, known for creating placemaking addresses of enduring value across hospitality and luxur

• O Origin Cladding Ltd London · Cladding · 1-9 employees

  Origin Cladding Limited supplies decorative wall cladding products and construction materials, including brick slips, clay bricks, and stone cladding.

• O Original Sash London · Windows & doors · 1-9 employees

  Original Sash by Sollex Ltd. manufacture, supply and install high quality timber windows & doors across London and the South East. Suitable for conser

• O Oriole Constructors Ltd. London · Refurbishment · 1-9 employees

  Oriole Constructors Ltd offers quality, time, and cost control in building and construction projects across Bracknell and West London.

• O Orion Lifting Solutions Ltd London · Crane hire

  Orion Lifting Solutions is a leading provider of lifting management solutions, bringing technical expertise to construction plans to improve efficienc

• O ORS GROUP London · Concrete works

  ORS Group is a contracting intermediary providing labour services and compliance support to recruitment agencies and end clients across the UK.

• O Ortillia London · House builder

  Ortillia creates beautiful, luxurious, and timeless homes through considered, elegant design. We strive for excellence in crafting high-quality proper

• O Ortus Energy Ltd London · Solar PV

  End to end Renewable Energy suppliers and funding solutions for commercial and industrial businesses with a proven track record.

• O OSCAR CLEANING SERVICES LTD London · Painting & decorating

  Bespoke commercial cleaning for London offices and schools since 2014. On-site supervision, vetted teams, eco-friendly methods. Book a free site visit

• O Oscar Onsite London · Insulation

  Oscar Onsite offers independent cavity wall insulation surveys and reports for homeowners, landlords, and lenders across the UK. Book a survey today.

• O Ostconstruct1 Ltd London · Bricklaying

  Serious craftsmanship, fair prices, fast completion. Specialists in brickwork, masonry, extensions and exterior works for residential and commercial p

• O OTL Staffing London · Concrete works

  OTL Staffing provides back of house staffing solutions for events and hospitality in London. Founded in 2021, they offer skilled professionals for ven

• O Otm UK Services Ltd London · Refurbishment · 1-9 employees

  OTM UK Services Limited offers reliable and professional cleaning solutions for homes and businesses across the UK. We focus on client safety, rigorou

• O Otter Stop London · Fencing

  Otter Stop provides long-term otter fence solutions to protect fisheries and wildfowl lakes from otter predation. They offer tailored fencing and advi

• O Otterburn Construction Ltd London · Refurbishment · 1-9 employees

  Otterburn Construction provide exceptional construction services, with a skilled and experienced team committed to delivering results that exceed expe

• O Otters Group Ltd London · Refurbishment · 1-9 employees

  Otters Group is a family-owned construction business established in 2018, providing expert residential and commercial services including renovations,

• O Our Lady Of Grace Parish Buildings Preservation Trust Ltd London · Restoration & heritage

  Preserving exceptional heritage buildings and building vibrant community outreach programmes.

• O OUTBOX STORAGE London · Security systems

  Outbox Underground Cycle Garage: the most secure domestic cycle storage on the market. Convenient, exclusive, secure, discreet.