Subcontractors in the UK

35585 UK companies working as subcontractors.

• O Optima Contracting Ltd High Wycombe · Glazing · 250+ employees

  Enhance your workspace with modern glass partitions and office solutions from Optima Systems. Transform your office environment today!

• O OPTIMA ELECTRICAL SERVICES LIMITED Paignton · Electrical · 1-9 employees

  NICEIC-approved electricians providing electrical testing, EICR inspections, and PAT testing for commercial & industrial clients.

• O Optima Foundations Ltd Edlington, Doncaster · Piling · 10-49 employees

  Optima Foundations Ltd are a specialist piling and foundation contractor offering a nationwide service from our Yorkshire office. Providing an honest,

• O Optima Property Services Ltd Clevedon · Painting & decorating

  Optima Property Services Ltd. Superior commercial decorators based in the South West. Excellent service at competitive rates.

• O Optimal Cooling Manchester · Air conditioning · 1-9 employees

  Expert air conditioning installation and repair services for homes and businesses across Greater Manchester. We offer efficient, bespoke cooling and h

• O Optimal Energy Solutions Ltd Grays · Solar PV · 1-9 employees

  Optimal Energy Solutions specialises in designing and installing solar PV systems, solar battery storage, air source heat pumps, and EV charging solut

• O Optimal Finishes Ltd Chigwell · Refurbishment · 1-9 employees

  Top Rated Construction Company in London. We offer Full Management on Projects our services include Full Home Renovations, Offices, Full Bathroom Fitt

• O Optimal Group Nw Ltd Chester · Roofing · 1-9 employees

  Optimal Group NW Ltd offers expert roofing and maintenance services for domestic and commercial properties, specializing in repairs, installations, an

• 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 Interiors Maidstone · Refurbishment · 1-9 employees

  Optimal Interiors Limited offers professional home refurbishment services including kitchens, bathrooms, tiling, plastering, and underfloor heating ac

• O Optimal Mechanics Solutions Ltd Esher · Plumbing

  Professional plumbing and air conditioning services with over 15 years of commercial construction experience. Quality installations and health standar

• 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 OPTIMAL RENEWABLES LIMITED Stirling · Heating & ventilation

  Expert heat pump installers in Central Scotland, specialising in air source and ground source heat pumps for homes and businesses. MCS-certified profe

• O Optimize Steel Services Ltd Maidstone · Steel fabrication · 1-9 employees

  Optimize Steel Services Ltd is an expert steel fabrication company based in Maidstone, serving customers across Surrey, Hampshire, and the wider UK wi

• O Optimum Carpentry Solutions Ltd Gloucester · Carpentry & joinery · 1-9 employees

  Optimum Carpentry Solutions Ltd offers comprehensive carpentry and joinery services in Gloucestershire and the Cotswolds. Established in 2019 with 22

• O Optimum Contractors Ltd Chelmsford · Fire protection · 1-9 employees

  Optimum Contractors is a trusted UK-based specialist in passive fire protection and sealing solutions. We deliver fully compliant, high-quality servic

• O Optimum Electrics Ltd Peterborough · Electrical · 1-9 employees

  Optimum Electrics is a leading UK solar and electrical company based in Peterborough, providing hassle-free solar and electrical services for commerci

• O Optimum Group Bristol · Drylining · 50-249 employees

  Optimum Group is a leading specialist contractor in the South West and South Wales, with a reputation for quality and service. Founded in 1999, the gr

• O Optimum Hvac Ltd St. Leonards-On-Sea · Heating & ventilation

  Plumbing, Heating & Cooling in East Sussex, from Optimum HVAC, backed by 120+ Google Reviews. Booked properly. Turned up on time.

• O Optimum Maintenance Solutions Ltd London · Electrical · 1-9 employees

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

• O Optimum Plumbing & Heating Ltd Peterborough · Plumbing

  Optimum Plumbing and Heating Ltd is a family-run business in Peterborough with over 20 years of experience, offering value for money services.

• O Optimum Scaffolding Ltd Alcester · Scaffolding · 10-49 employees

  Trusted NASC Scaffold contractor in Birmingham. Offering expert commercial scaffolding services & scaffold tower hire in Birmingham & the surrounding

• O Optimus Access Ltd Gravesend · Scaffolding · 10-49 employees

  Optimus Access Limited is an established scaffolding contractor with over 15 years of experience delivering complex access solutions across the UK con

• O Optimus Architectural Ltd Newark · Glazing · 10-49 employees

  Designing with vision, building with precision. Excellence in Architectural Glazing. Commercial and residential construction projects across the UK.

• O Optimus Decorating Services Ltd Paisley · Painting & decorating

  Optimus Decorating Services Ltd is a painting and decorating company based in Paisley, Scotland.

• O Optimus Facilities Ltd Liverpool · M&E contracting

  Optimus Facilities: Your Building Services & Engineering Partner. Specialising in mechanical & electrical systems design and installation across the N

• O Options 4 Surfaces Ltd Nottingham · Plastering

  Options 4 Surfaces Ltd specialise in Microcement Installation and Silicone Rendering, transforming the look of your home with a new, modern, sleek loo

• O Options Energy Services Ltd Harlow · Civil engineering · 10-49 employees

  Options Energy Services is an independent civil engineering contractor delivering utility infrastructure, energy, telecoms and traffic management serv

• O Optisol Services Ltd Cheshire · Solar PV · 10-49 employees

  Optisol Services is a leading UK solar farm cleaning company, delivering professional solar panel cleaning services for commercial solar farms across

• O Optix Glazing Ltd Paisley · Glazing · 1-9 employees

  Optix Glazing Paisley provides high-quality glazing solutions for residential and commercial properties across Paisley, Glasgow and Central Scotland.

• O Optrum Glass UK Bristol · Glazing

  Optrum Glass UK supply and install outstanding Glass Partitions and doors, providing Innovative and high quality commercial glazing solutions to offic

• O Opulent Bespoke Ltd Swanley · Kitchen fitting · 1-9 employees

  Transform your space with Opulent Bathrooms and Kitchens. Expert remodeling services for luxury and quality design in every home.

• O Opulous Innovation Ltd. Colchester · Electrical · 1-9 employees

  London-based electricians offering retail maintenance, luxury fit-outs, and a wide range of electrical services including air conditioning, CCTV, EV c

• 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 Brickwork Ltd Pinner · Bricklaying

  Opus Brickwork Ltd is a specialist brickwork contractor based in West London, with extensive experience in new builds across residential, commercial,

• O Opus Building Services Ltd Boldon · M&E contracting · 50-249 employees

  OPUS Building Services Ltd is a leading contractor of mechanical, electrical and building services across a wide range of sectors throughout the UK. F

• O Opus Carpentry Ltd Isle Of Lewis · Kitchen fitting · 1-9 employees

  Opus Carpentry offers kitchen supply and fitting, joinery, extensions, renovations, and construction services on the Isle of Lewis.

• O Opus Construction And Civils Ltd Birmingham · Main contractor · 1-9 employees

  Opus Construction and Civils Ltd are a specialist construction company operating in the insurance repair sector on complex projects.

• O Opus Electrical Solutions Ltd Middlewich · Electrical · 10-49 employees

  Opus Electrical Solutions are specialists in residential, industrial and commercial installations. Based in Cheshire, we provide electrical services a

• O Opus Plumbing And Heating Ltd Chesterfield · Plumbing · 1-9 employees

  OPUS Plumbing & Heating offers the highest quality plumbing and heating services through our specialist, reliable tradespeople and staff.

• O Opus Power Ltd Shrewsbury · Electrical

  Opus Power Ltd specialises in electrical contracting, with over 30 years of experience in overhead line (OHL) work and power distribution across the U

• O Opus Utility Solutions Warrington · Utilities · 10-49 employees

  Opus Utility Solutions is a Tier 1 SME delivering civil & electrical engineering solutions in the utilities sector, supporting DNOs and IDNOs around t

• O Ora Asbestos Management Ltd Great Wakering · Asbestos removal · 1-9 employees

  Ora Asbestos Management offers professional and experienced asbestos surveying, inspections, and removal services. Family-run and compliant with CAR 2

• O Oracle Electrical Biggleswade · Electrical · 1-9 employees

  Oracle Electrical offers bespoke domestic, commercial, and industrial electrical solutions, including design, installation, and maintenance. Based in

• O Oracle Electrical Services Ltd Leeds · Electrical · 1-9 employees

  Oracle Electrical Services Ltd offers reliable, safe, and efficient electrical installation services for residential, commercial, and industrial clien

• O Oracle Energy Ltd Callington · Solar PV · 1-9 employees

  Oracle Energy specializes in solar PV installations for industrial, commercial, and residential clients. Offering tailored energy solutions to reduce

• O ORACLE GLAZING & REPAIRS LTD Worthing · Glazing

  Oracle Glazing & Repair specialises in glass and glazing services, offering custom solutions for commercial and residential properties. Committed to e

• 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 Building Solutions Ltd Biggleswade · Refurbishment

  We provide expertise in all aspects of property improvements across Hertfordshire, Bedfordshire and Cambridgeshire.

• O Orange Construction Coventry Ltd Coventry · Refurbishment

  Orange Construction Coventry Ltd is a construction company specialising in home renovations, new builds, extensions, and a wide range of property impr