Energy construction companies in London

707 companies across London working in the energy sector.

• 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 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 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 Heatswap Ltd Northfleet · Heating & ventilation · 1-9 employees

  Expert plumbing and heating services in Gravesend, covering the whole of the South East. Get a quote today.

• H Heerema Marine Contractors U.K. Ltd London · Marine & water engineering · 10-49 employees

  Heerema Marine Contractors UK Ltd is a leading offshore marine contractor and engineering solutions provider, specializing in complex offshore project

• H Heightlink Fall Protection Services Ltd London · Scaffolding · 1-9 employees

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

• H Heliotec Energy Ltd London · Solar PV

  Heliotec is an energy management software for UK multi-site operators. Cut waste, hit SECR targets and act on alerts at the site level - no hardware n

• 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 HFS Environmental Gravesend · Asbestos removal · 10-49 employees

  HFS Environmental are UKAS accredited asbestos specialists providing management, refurbishment, and demolition surveys nationwide and internationally.

• H Highland Wind Farm London · Solar PV

  Highland Wind Farm is a joint venture developing a significant renewable energy project in the Scottish Highlands, aiming to contribute to net-zero em

• H HMS ECO HOMES London · Insulation · 1-9 employees

  HMS ECO HOMES LTD specializes in high-quality energy efficiency solutions, offering insulation and heating services under the ECO4 scheme for eligible

• H Hn Electrical Solutions Ltd Kings Langley · Electrical · 1-9 employees

  HN Electrical Solutions provides Electrical & Instrumentation construction services across the UK, Ireland, and mainland Europe for various sectors in

• H Home Energy Training Retrofit Alliance Ltd London · Insulation

  Home Energy Training Retrofit Alliance (HETRA) provides accredited training for the energy efficiency and retrofit sector in London and across England

• H Hometree London · Heating & ventilation · 50-249 employees

  Hometree offers comprehensive boiler and home emergency breakdown cover with unlimited repairs and regular maintenance. Compare plans to save money.

• H Hometree Finance London · Heating & ventilation · 1-9 employees

  Zero-deposit payment plans for new boilers, heat pumps and solar panels. Explore our all-inclusive installation, servicing and repair packages, for co

• H Horton Builders Orpington · Insulation · 1-9 employees

  Horton Builders & Horton Energy offer high-quality green energy and building services in Orpington and Bromley. Specialising in insulation, rendering,

• H HOUSE HEATING LIMITED Weybridge · Heating & ventilation · 1-9 employees

  House Heating specialises in installing, maintaining, and servicing premium heating systems for new builds and homes in Surrey and the South East.

• H Htf Contractors Ltd London · Civil engineering

  HTF Contractors LTD offers global business, management, and consulting services with over 25 years of experience across diverse sectors including Mini

• H Hybrid Electrical & Renewables Ltd Ashford · Solar PV

  Trusted renewable energy specialists serving Surrey & Berkshire with solar panels, battery storage and EV charger installations.

• I IBR Energy Solutions Ltd. Romford · Heating & ventilation

  IBR Energy Solutions Ltd. provides government-backed ECO4 and LA Flex funding for energy-efficient home upgrades including insulation, heating, ventil

• I Ics Global Ltd London · Main contractor

  ICS GLOBAL specializes in high-grade procurement of natural gasses and sourcing essential equipment. Your reliable partner for professional and timely

• i iFocus Group London · Electrical · 1-9 employees

  iFocus Group provides innovative and eco-friendly engineering solutions, blending cutting-edge technology with expert knowledge for efficiency and sus

• I Ifyachi Ltd London · Main contractor · 1-9 employees

  Ifyachi Ltd is a specialist boutique advisory firm offering customized strategic and project delivery consultancy for sectors ranging from Oil and Gas

• I Ignira Energy London · Heating & ventilation

  Ignira Energy decarbonises UK home heating by making clean heating solutions accessible. They offer heat pump installations with no upfront payment, f

• I Imperial College Developments Ltd London · Property developer

  Imperial College London is a world-leading university for science, technology, engineering, medicine and business (STEMB). Across our London campuses,

• I Inbox Thermal Solutions London · Heating & ventilation

  Inbox Thermal Solutions is the exclusive UK partner for HydroTop™ heat pump solutions, offering a unique roof-integrated system for homes where conven

• I Infrared Energy Chertsey · Heating & ventilation · 1-9 employees

  Smarter heating for modern living. Authorised Partner of Herschel infrared heaters. Market-leading products known for their design, quality, and innov

• I INGEENIUM London · Design & build

  Ingeenium Holding is a global engineering and consultancy group offering innovative and sustainable solutions in energy, environmental management, ind

• I Initivo Consultancy Limited Watford · Concrete works

  Initivo combines world-leading laboratory testing with expertise in sustainability and a complete understanding of structures. Our multi-disciplinary

• I Innercity Scaffolding Ltd Dartford · Scaffolding · 10-49 employees

  Inner City Scaffolding delivers intelligent, bespoke scaffolding and access systems, with safety, innovation, and value at the heart of every project.

• I Innovative Utilities (UK) Ltd London · Utilities · 10-49 employees

  Innovative Utilities (UK) Limited is a privately owned Utility & Civil Contractor operating throughout the UK, with a strong focus on water and gas in

• I Installio Ltd London · Solar PV

  Installio delivers clean energy upgrades as one connected system, helping improve EPC ratings and reduce household energy bills. From solar and batter

• I Intec Energy Solutions Ltd London · Solar PV · 1-9 employees

  INTEC Energy Solutions is a global leader in EPC Services, Project Development, BESS, and Operations & Maintenance for green energy solutions.

• I INTECHS INNOVATION TECHNOLOGY SYSTEMS LTD London · Electrical · 1-9 employees

  INTECHS provides cutting-edge industrial automation and digital solutions, optimizing efficiency and performance for businesses across various sectors

• i iotourist.com London · Utilities

  IO TOURIST LTD provides mobile internet services for travelers in Turkey, offering portable Wi-Fi modem rentals and eSIM solutions to ensure seamless

• I Iplan Construction & Consultants Ltd London · Civil engineering · 1-9 employees

  Iplan Construction & Consultants Ltd. offers expert planning, scheduling, and project management services led by an experienced civil engineer. Delive

• I IRL Group Hornchurch · Flooring

  IRL Group excel in industrial solutions. With expertise in epoxy resin flooring, floor markings and industrial painting, we are your go-to source for

• I Iropeaccess Ltd London · Scaffolding

  Specialist rope access company providing work-at-height services across London and the UK. IRATA certified. Get a free quote today.

• I Isenau Projects Group Services Ltd London · Solar PV

  Isenau Projects develops grid-scale battery energy storage systems in UK, Spain and Germany. We work with landowners to develop commercially attractiv

• I ISR - INTELLIGENT SOLUTIONS FOR REFRACTORY LTD London · Steel fabrication

  Vesuvius is a global leader in metal flow engineering, providing a full range of engineering services and solutions, principally serving the steel and

• I IZ Energy Barking · Solar PV · 50-249 employees

  IZ Energy specialises in making homes energy efficient with premium solar panels, heat pumps, and insulation. They help households access funded energ

• J J A Brooks Mechanical Services Ltd London · M&E contracting · 50-249 employees

  JA Brooks is a mechanical services company designing, manufacturing, and fitting systems for water supply, sanitation, heat, fresh air, and gas across

• J J.A. RATTIGAN & SON LTD PLANT HIRE London · Plant hire · 10-49 employees

  J.A. Rattigan & Son Ltd is a leading plant hire contractor in the UK, specializing in suction excavation and utilities. With over 40 years of experien

• J Jgf Electrical And Building Services Ltd Crayford, Dartford · Electrical · 10-49 employees

  JGF Electrical provides industry-leading electrical services, focusing on skill, service ethos, and technological innovation for commercial, industria

• J Jht Energy Services Ltd London · Heating & ventilation · 1-9 employees

  JHT Energy Services installs Air Source Heat Pumps with a £7,500 grant, plus private solar panels & air conditioning. TrustMark Certified.

• J Jjb Electrical Ltd Waltham Cross · Electrical · 1-9 employees

  Local, Trustworthy and Reliable Electrician in Cheshunt, covering Herts and Essex. JJB Electrical offers quality workmanship and 100% customer satisfa

• J JL Phillips Renewable Energy London · Solar PV · 1-9 employees

  JL Phillips specialises in heat pump and solar PV installations across the UK. Over 1,000 projects completed-contact us today!

• J John F Hunt Group Ltd Grays · Demolition · 250+ employees

  John F Hunt Group is a leading specialist contractor in construction, demolition, and regeneration, delivering fully integrated engineered solutions a

• J John Laing Dartford · Civil engineering

  John Laing is a leading international investor and active manager of core infrastructure assets, including transportation, energy, utilities, telecomm