Heating & ventilation contractors in London

977 heating & ventilation contractors based in and around London.

• G GOLD BEAR LTD London · Heating & ventilation

  Trusted gas & heating engineers in London offering same-day call-outs and 24/7 emergency services. Clear, upfront pricing with a 90-day workmanship gu

• G Gold Insulation Ltd London · Insulation

  Specialist thermal, acoustic and fire-rated insulation services for commercial and industrial applications.

• G Golden Arms Projects Ltd London · Main contractor

  Golden Arms Construction, Urban modern craftsmanship for commercial, residential, and civil projects.

• G Gpm London Plumbing & Heating Ltd London · Plumbing

  Gpm London Plumbing & Heating Ltd is a plumbing company based in London, registered at Companies House in 2025.

• G Grand Build & Scape Ltd London · Refurbishment · 1-9 employees

  Grand Build & Scape Ltd offers expert home renovation services in London, specializing in loft conversions, extensions, and full house renovations. Th

• G Granger Jackson Ltd London · Plumbing

  Granger Jackson offers professional plumbing and heating services across London and Surrey, specializing in boiler installation, repair, and maintenan

• G Gratte Brothers Group Ltd London · M&E contracting

  Gratte Brothers delivers full-service building solutions-electrical, mechanical, foodservice, and security-for clients across London and the South of

• G Great Britain Services London · Plumbing

  Great Britain Services is a London-based plumbing, heating, and electrical company offering 24/7 emergency services with a 45-minute response time. Th

• G Green ECO Services London · Insulation

  Green ECO Services helps homes and businesses achieve a net zero future by recommending and implementing energy efficiency measures, including heating

• G Green Electro Heating London · Heating & ventilation

  MCS certified heat pump installers in London. Samsung approved installer with 7-year warranty. Vaillant, Daikin and Mitsubishi approved. £7,500 BUS gr

• G Green Energy Homes Ltd London · Solar PV · 1-9 employees

  Green Energy Homes is a multidisciplinary company providing renewable energy, heating, M&E, and design & build solutions for homeowners, developers, a

• G Green Gas London London · Plumbing

  Green Gas London offers high-quality plumbing, gas, and heating services. Ex-British Gas engineers provide repairs, servicing, and installations for c

• G Greenbirds Electrical & Maintenance Ltd London · Main contractor

  Comprehensive construction, maintenance, and facilities management for commercial developers and institutions across London. Delivering with precision

• G Greenecopulse Ltd London · M&E contracting

  GreenEcoPulse delivers integrated building maintenance and renewable energy services with sustainable, efficient solutions for future-proof properties

• G Greener Home Heating London · Heating & ventilation

  Greener Home Heating offers eco-friendly heating and electrical solutions in Pembrokeshire and Carmarthenshire, specializing in renewables like heat p

• G Greenland Energy London · Heating & ventilation

  Greenland Energy Services Ltd specialises in reducing carbon footprints through retrofit work in the housing sector, primarily funded by government gr

• G GRID Surveying London · Civil engineering

  Construction, topographical, drone and earthworks surveying across Essex, London and the South East. Working 3D survey data, setting out, volumes, ver

• G GymCraft London London · Design & build

  GymCraft London are specialists in the home wellness space. We install and design bespoke gym and sauna spaces.

• H H&K Workforce Ltd London · Electrical

  H&K Workforce Ltd is a UK recruitment agency connecting businesses with skilled staff and candidates with jobs across construction, healthcare, and mo

• H H&M Aircon London · Air conditioning

  H&M Aircon offers specialist air conditioning and commercial refrigeration services in London, with over 20 years of expertise. They provide installat

• H Habitas Ltd London · Refurbishment

  Habitas is a construction business specialising in residential projects in South West London, with over 15 years of experience and many return clients

• H Hackney Plumbing And Heating Ltd London · Plumbing · 1-9 employees

  Hackney Plumbing and Heating Ltd offers professional plumbing and heating services in London. Contact us for reliable solutions.

• H Halrix Commercial Systems Ltd London · M&E contracting

  Leading UK experts in M&E consultancy and contracting. Seamlessly integrating design and installation for exceptional Mechanical and Electrical soluti

• H Hanover Building Services London · M&E contracting

  Award-winning London based MEP Services Contractor delivering a spectrum of services to developments all over London and the home counties.

• H Harmer Services Ltd London · Plumbing

  Harmer Services Ltd is a professional plumbing, heating, electrical, and gas company covering London, Hertfordshire, and Essex. Specialising in boiler

• H Harwood Homes Building Contractors Ltd London · Main contractor

  Harwood Homes Building Contractors Limited are specialist luxury residential builders serving Essex and London. Extensions, full renovations, interior

• H Hashtag Property Services Ltd London · Plumbing

  Solution-driven property services for owners, landlords, and managers. Offering plumbing, heating, electrical, drainage, carpentry, appliance repair,

• H Hastings Boilers London · Heating & ventilation

  Hastings Boilers and Plumbing Ltd offers reliable boiler installation, domestic plumbing, gas services, landlord safety certificates, and emergency ca

• H Hayes And Green Homes Ltd London · Refurbishment · 1-9 employees

  Family-run building and property refurbishment business, specialising in bespoke bathrooms, green home solutions and property management.

• H Hazeez Engineering Consulting Company London · Design & build

  Hazeez Engineering Consulting Company: Professional engineering consulting with modern design and advanced motion effects.

• H Heat GB London · Heating & ventilation

  Heat GB Services Ltd provides professional, high quality and better heating solutions for plumbing and central heating in Barnet, Havant and Portsmout

• H HEAT GEEK INSTALLATIONS LTD London · Plumbing

  Heat Geek is a company that provides heating solutions.

• H Heat Interface Team Ltd London · Heating & ventilation

  Heat Interface Team Ltd. specialises in diagnosis, repair and maintenance services for Heat Interface Units (HIUs) and centralised district heating sy

• H Heat Nest London · Heating & ventilation

  A London-based company of Gas Safe registered engineers and qualified plumbers offering heating, plumbing, and smart tech services. Available 24/7 wit

• H Heat Pump Installer Directory London · Heating & ventilation

  Find and compare MCS certified heat pump installers near you. Claim the £7,500 Boiler Upgrade Scheme grant. Free quotes from trusted UK installers.

• H Heat Safe Plumbing LTD London · Plumbing

  Heat Safe Plumbing LTD offers emergency and non-emergency plumbing services in London. We are a reliable and professional team dedicated to providing

• H Heat-Plex London · Heating & ventilation

  Expert boiler installations, heating repairs & HIU servicing across London. Gas Safe registered engineers. 24/7 emergency support. Get a free quote to

• H Heatflow Plumbing & Gas Ltd London · Plumbing

  HEATFLOW Plumbing & Gas Ltd is a London-based independent service company providing 24/7 emergency plumbing, heating, and drainage services. Establish

• H Heatiliti Ltd London · Heating & ventilation

  The dedicated utility for heat networks. Design & build - Operate & maintain - Heat-as-a-Service. We adopt, manage and invest in heat networks, delive

• H Heatility London · Heating & ventilation

  Heatility installs Air Source Heat Pumps, offering a cleaner, smarter alternative to traditional boilers with government grants and 0% VAT.

• H Heating And More Ltd London · Plumbing

  Heating and More provides reliable, affordable plumbing and heating services in London, offering 24/7 emergency support and expert Gas Safe engineers

• H HEATING COOLING & AUTOMATION London · Heating & ventilation

  HCA specializes in efficient heating, cooling, and automation solutions. Our trained engineers ensure optimal design and installation of heat pumps an

• H Heatjet Ltd London · Main contractor

  HEATJET LTD offers comprehensive residential building construction, HVAC, plumbing, and electrical services. Specializing in custom home builds, renov

• H HeatLion London · Heating & ventilation · 1-9 employees

  HeatLion offers boiler replacement, boiler service, boiler installation, and smart home thermostat services. Get a quote for a new boiler, heat pump,

• H HEATR London · Heating & ventilation

  Local, trusted boiler experts offering A-rated Vaillant, Baxi, and ATAG boiler installations with 12-year warranties & free Gas Safety Inspection. Exp

• H Heatworks London Ltd London · Heating & ventilation

  Heatworks London Ltd specialises in all aspects of domestic heating & plumbing. We are dedicated to giving you professional, friendly, reliable servic

• H Heightlink Fall Protection Services Ltd London · Scaffolding

  HeightLink Fall Protection Services Ltd specialises in the inspection, design, and installation of fall protection and anchor systems across the UK, e

• H HELIX TECHNICAL SERVICES LTD London · Electrical

  Helix Technical Services is a reputable construction and maintenance company offering a wide array of specialties across technical fields including El

• H HEMAJU RESIDENTIAL & COMMERCIAL INVESTMENTS LTD London · Main contractor

  Hemaju RCI sp. z o.o. is a Polish operational company within the HEMAJU group, specializing in comprehensive event organization and production. They o

• H Hercules Building Ltd London · Refurbishment · 1-9 employees

  Hercules Building Ltd is a premier construction company in London, UK, specializing in high-quality building services, renovations, and extensions in