Heating & ventilation contractors working in commercial

6785 UK heating & ventilation contractors working in the commercial sector.

• O ODM Services Gravesend · Heating & ventilation · 10-49 employees

  Award winning company delivering commercial heating, plumbing and mechanical projects across London and the South East.

• O Oetzmann & Co. Folkestone · Plumbing · 1-9 employees

  Oetzmann & Co. is a family business established in 2003, specialising in plumbing and heating engineering. They offer excellent workmanship and servic

• O Off Grid Heating Ltd Monmouth · Heating & ventilation · 1-9 employees

  OFTEC approved installers of air source, ground source, water source and other off-grid heating solutions in Monmouthshire, Wales, Herefordshire, Glou

• 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 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 OGR Properties Ltd Portsmouth · Plumbing · 1-9 employees

  OGR Properties Ltd provides plumbing, gas & boiler services in Portsmouth & the surrounding areas. Get in touch today for all manners of plumbing.

• O OHM SMART LTD Accrington · Electrical · 1-9 employees

  Ohm Smart offers bespoke smart home and automation solutions, including lighting, AV, security, and network systems, designed to enhance convenience,

• O Oil Heating Oil Cookers Ashford · Heating & ventilation · 10-49 employees

  Oil Heating Oil Cookers Ltd: OFTEC registered oil-fired appliance service, repair and installation in Kent. Family business established by Robert Oakl

• 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 Oiltec Fordingbridge · Heating & ventilation · 1-9 employees

  Independent service engineers specialising in oil boiler servicing, repairs, and installations. Also cover Aga Cooker and Rayburn service, repair, bre

• O Ojs Plumb & Heat Ltd Eastleigh · Plumbing · 1-9 employees

  OJS Plumb & Heat Ltd provides reliable and quality plumbing, heating, and air conditioning services. We cater to all needs, from boiler installations

• O OLAD HEATING AND GAS LTD Bolton · Heating & ventilation · 1-9 employees

  OLAD Heating and Gas offers expert heating, gas, and plumbing services, including boiler installation, repairs, servicing, and landlord safety checks.

• O Old Briar Property Services Thatcham · Plumbing · 1-9 employees

  Old Briar Property Services Ltd offers professional plumbing, heating, and gas services to domestic and commercial clients in Berkshire, including boi

• O Old School Plumbing Limited Barnard Castle · Plumbing · 1-9 employees

  Friendly, family plumbing and gas heating experts in Barnard Castle and Teesdale, offering transparent pricing for services from tap washers to boiler

• O Oldham Bros Ltd. Liverpool · Demolition · 1-9 employees

  Oldham Bros Ltd are trusted demolition contractors in Merseyside with over 75 years' experience. Specialists in demolition, site clearance, recycling,

• O Olive Plumbing & Heating Services Borehamwood · Plumbing · 1-9 employees

  Trusted plumbers in Borehamwood with 30+ years of experience. Olive Plumbing & Heating Services offers expert solutions for homes and businesses.

• O Oliver Blackmore Specialist Gas Engineer Ltd Bridgwater · Heating & ventilation · 1-9 employees

  Specialist gas safe registered engineer for commercial, catering, and leisure specific gas installations, servicing, and maintenance. Oliver Blackmore

• 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 Oliver’S Services Ltd Pontypridd · Plumbing · 1-9 employees

  Oliver's Services offers tailored commercial plumbing, heating, renewables & sprinkler systems. Contact us for reliable solutions today!

• 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 FIX London · Air conditioning

  Omega Fix provides expert air conditioning repair, installation, and maintenance services along with commercial refrigeration solutions across all 34

• O Omni Heating Ltd Portsmouth · Plumbing · 1-9 employees

  Highly-rated plumbing, heating and boiler solutions serving Portsmouth, Fareham & Hedge End for over 20 years. Call Omni Heating for expert advice.

• O OMR PLUMBING Leeds · Plumbing · 1-9 employees

  OMR Plumbing offers expert plumbing and heating services across Yorkshire and nationwide. With over 10 years of experience, we provide high-quality in

• O On Demand Plumbing & Heating Ltd Watford · Plumbing · 1-9 employees

  24/7 plumbing, heating & boiler specialists across Hertfordshire and all London boroughs. Transparent pricing, certified engineers.

• O ON HOME LTD Swineshead · Electrical

  On home ltd, Boston. All your electrical and heating/plumbing needs in one place. All aspects of install, services & repairs.

• O On Tap Solutions Ltd High Wycombe · Plumbing

  On Tap Solutions are qualified plumbers and gas engineers covering Islington, North London, West London and Buckinghamshire. Specialists in plumbing,

• O ON TIME HEATING SERVICES LTD Birmingham · Heating & ventilation · 1-9 employees

  ON TIME HEATING SERVICES LTD: Experts in boiler repairs, servicing, and installs in Birmingham and surrounding areas. Gas Safe certified for all gas a

• O Oncore Specialist Heating Ltd Bowness On Windermere · Heating & ventilation

  Oncore Specialist Heating is a heating industry professional specialising in the repair, maintenance and installation of heating systems for domestic

• O ONE | Plumbing & Heating Tranent · Plumbing · 1-9 employees

  ONE | Plumbing & Heating is a family-run business offering trusted, high-quality plumbing and heating services. With over 23 years of experience, we p

• O ONE CALL GAS SERVICES LIMITED Sandwich · Heating & ventilation · 1-9 employees

  One Call Gas Services offers expert heating and plumbing services in Kent, including boiler repairs, installations, and Gas Safe certificates. Call 01

• 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 Electrical Services (N.I.) Ltd Belfast · Electrical

  One Electrical Services is a Belfast-based company providing a first-class electrical, plumbing, and heating service for homes and businesses across N

• O One Environmental Ltd Witham · M&E contracting · 10-49 employees

  ONE Environmental Ltd provides compliance and mechanical services including PPM, reactive, and project works across various market sectors. They focus

• O One Mep Ltd Bedford · M&E contracting · 10-49 employees

  ONE MEP is a professional and reliable MEP contractor offering value, quality, and practical solutions for improving the built environment. Vision to

• O One Stop Electrical Gas Solutions Ltd Coventry · Electrical

  Need an Electrician or Gas Engineer in Coventry? One Stop Electrical Gas Solutions Ltd offers boiler repairs, EICRs, rewires, fault finding, and EV ch

• O ONE-STOP APPLIANCE REPAIRS Caerphilly · Electrical · 1-9 employees

  One Stop Appliance Repairs offers reliable appliance repairs in Cardiff, Caerphilly, and Newport. Authorised repair agents for Domestic & General and

• 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 Oneheat Ltd Barnsley · Heating & ventilation · 1-9 employees

  South Yorkshire's trusted heating, boiler & air conditioning specialists. Gas Safe-registered engineers delivering boiler installations, servicing, ra

• O OneServ Ltd Goole · Plumbing

  Need a reliable local Plumbing, Heating & Boiler company in Yorkshire? OneServ is a one-stop shop for all your Plumbing, Heating & Boiler needs.

• O Ongo Roofing Ltd Scunthorpe · House builder · 10-49 employees

  Ongo provides over 10,000 affordable homes for rent and sale across Greater Lincolnshire, South Yorkshire and surrounding areas, focusing on creating

• O ONLYHEATING.COM Altens · Heating & ventilation · 10-49 employees

  ONLYHEATING.COM Ltd offers central heating, gas services & plumbing in Aberdeen, Inverurie & Stonehaven. Authorised & regulated by the FCA.

• 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 Ontime Heating And Plumbing Ltd Birmingham · Plumbing · 1-9 employees

  Ontime Heating and Plumbing Ltd offers expert plumbing and heating services across Birmingham and the West Midlands. We handle everything from boiler

• O OnTime Plumbers Hainault · Plumbing

  OnTime Plumbers is a trusted London-based plumbing company offering 24/7 emergency services. Established in 2012, we provide fast, reliable, and affor

• O Ontop Electrical Ltd Nottingham · Electrical · 1-9 employees

  Ontop Electrical provides high-end bespoke electrical solutions for private, commercial and industrial clients across Nottinghamshire, Derbyshire and

• O Onyx Solutions Ipswich · M&E contracting · 10-49 employees

  Onyx Solutions Ltd is a trusted provider of building and facilities services, delivering high-quality solutions across the region. Part of the EPPH Gr

• 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 Opalux Group Ltd Gloucester · Electrical

  Opalux Group provides expert electrical, mechanical and construction services across Gloucestershire and The Cotswolds.

• O Openfix Ltd Newcastle-Under-Lyme · Heating & ventilation · 1-9 employees

  OpenFix offers comprehensive home and boiler cover with unlimited repairs, fast response, and a price match guarantee. Rated 5 Stars by Defaqto.