Energy construction companies

4513 UK companies working in the energy sector.

• H High Voltage Asset Installation Ltd Wisbech · Electrical

  Expert HV installation services across the UK. Trusted by industry leaders for safe, efficient, and future-ready power solutions.

• H High Voltage Commissioning Ltd Letchworth Garden City · Electrical

  Expert High Voltage Commissioning Engineers empowering tomorrows electrical solutions.

• H Highland Deephaven Ltd Evanton, Dingwall · Property developer · 50-249 employees

  Highland Deephaven offers 468 acres of industrial land and building leasing opportunities within the Inverness & Cromarty Firth Green Freeport, ideal

• H Highland Eco Design Auchterarder · Design & build

  Highland Eco Design specialises in the design, procurement, and management of small-scale hydro power schemes across Scotland. They offer a comprehens

• 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 Highlands And Islands Renewables Ltd Banff · Insulation

  Retrofit and Net Zero Solutions for Homes and Businesses Across the Highlands & Islands. We specialise in energy efficiency and renewable energy solut

• H Highlands Rewilding Ltd Drumnadrochit · Landscaping · 10-49 employees

  Highlands Rewilding is a UK rewilding company focused on nature recovery and community prosperity through innovative land management and nature-based

• H Hill Grwp Ltd Swansea · Modular & offsite construction · 10-49 employees

  Hill Grwp Ltd designs, manufactures and installs GRP and steel industrial enclosures, sprinkler pump rooms, substations, TopBox roof entry systems, ba

• H Hillgreen Engineering Ltd Hereford · Solar PV · 1-9 employees

  Hillgreen's energy and drive help clients maximise value from existing and future low carbon investments, with expertise in renewables engineering.

• H Hinter Electrics Leigh-On-Sea · Electrical

  Local electrical experts providing safe, reliable, and professional electrical services for domestic and commercial properties across Southend and sur

• H Hitchings Electrical (Cowbridge) Ltd Cowbridge · Electrical

  Hitchings Electrical provides nationwide electrical services, from minor repairs to shop fitting and full rewires. NIC EIC, Safe Contractor, and CHAS

• H Hjh Commercial Consultants Ltd Deeside · Civil engineering · 1-9 employees

  Expert Quantity Surveyors and consultants | Need on-time & budget-friendly construction? HJH's quantity surveying & project management keep your proje

• H Hl Civils Ltd Hinderclay · Civil engineering

  HL Civils Ltd is a specialist civil engineering and construction company based in Suffolk, established in 2007. They focus on delivering high-quality,

• H HMS ECO HOMES London · Insulation

  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

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

• H Hodgson Sayers Ltd Stanley · Roofing

  Hodgson Sayers are specialists in roofing, building maintenance, and security products, operating across the UK with a focus on challenging projects a

• H Holden Electrical Ltd Banwell · Electrical

  Holden Electrical are an electrical services company with over 10 years experience in domestic, commercial and industrial systems.

• H Holemasters Demtech Ltd Blackpool · Civil engineering · 1-9 employees

  Nationwide diamond cutting, robotic demolition, anchor installation, and testing services for construction and civil engineering projects.

• H Holequest Ltd Galashiels · Groundworks

  Expert Geotechnical, Site Investigation & Well Drilling Services. Holequest provide a wide range of services and operate throughout Scotland, northern

• H Holicon Energy Ltd Spalding · Solar PV · 1-9 employees

  Holicon Energy is a Renewable Energy installation company based in the East Midlands, specialising in solar panels, battery storage, and EV chargers.

• H Holmes Electrical Limited Worksop · Solar PV

  Fully Accredited & Certified Renewable Energy Installers of Solar Panels, Battery Storage, EV Chargers & Air Source Heat Pumps in Worksop.

• H Holmework (Yorks) Ltd Holmfirth · Civil engineering · 1-9 employees

  Holmework (Yorks) Ltd delivers expert civil engineering, groundworks, and fit-out solutions nationwide. Specialising in renewable energy and wastewate

• H Home Eco Solutions Ltd Swansea · Solar PV

  Specialising in solar panels, battery storage and EV charging to help reduce energy costs and build a more sustainable future for homes and businesses

• H Home Electrical Ltd Nottingham · Electrical

  Home Electrical LTD is an experienced electrical contractor operating in Nottingham, Derby and Leicester, offering 24hr emergency callouts and a compr

• 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

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

• H Hopley Electrical Services Ltd Norton Canes · Electrical

  Hopley Electrical Services Ltd offers a wide range of electrical works, including design, installation, testing, and maintenance for commercial and in

• H Horisun Ltd Oakham · Solar PV

  Horisun Renewable Energy are MCS Accredited installers with over 15 years of experience in solar thermal hot water and solar PV electric installations

• H Horizon Engineering Solutions Ltd Belfast · Electrical · 10-49 employees

  Horizon Engineering Solutions provides the only Electrical and Carbon Training Academy in Northern Ireland. Contact us now!

• H Horton Builders Orpington · Insulation

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

• H Hosie Electrical Contracting Ltd Inverurie · Electrical

  Trusted local electricians serving Aberdeen & Aberdeenshire since 1988. Specialising in solar PV, battery storage, testing, maintenance, rewiring & mo

• H HOUSE HEATING LIMITED Weybridge · Heating & ventilation

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

• H Houston Group Leeds · Roofing · 10-49 employees

  Houston Group delivers comprehensive, high-quality building services in social housing, public buildings, education, energy, and industrial/commercial

• H Hpc Design & Build Ltd Sleaford · Design & build · 1-9 employees

  HPC Design & Build Ltd Sleaford, experts in construction and renewable energy solutions. Contact us for quality projects.

• H Hps Commissioning Services Ltd Manchester · Utilities

  HPS Commissioning Services Ltd has been a cornerstone in the community since 2012, involved in leadership and development. We lead the way towards a m

• H Hpw Electrical Ltd Hailsham · Electrical

  HPW Electrical: Your choice for comprehensive electrical and solar solutions across Sussex, powering homes and businesses with expertise.

• H HQ Construct Bury · Scaffolding

  HQ Construct Ltd is a specialist scaffolding contractor offering professional services across the commercial, energy, public, and domestic sectors. We

• H Hrhislop.Com (Electrical Contracting) Ltd Devizes · Electrical

  HRHislop are reliable, knowledgeable electrical contractors with a full-time office team. We provide domestic & commercial electrical services.

• H Hs Power Solutions Ltd Chorley · Utilities · 10-49 employees

  HS Power Solutions is a growing Independent Connection Provider in North-West England, offering end-to-end delivery for jointing, fault teams, multi-u

• H HS Renewables Derry · Solar PV

  HS Renewables is Northern Ireland's specialist in Solar Panel Installation and skilled repair teams, offering a comprehensive range of renewable energ

• H HSB Renewables Deeside · Solar PV · 1-9 employees

  Supplier & Installer of renewable energy & carbon saving technology. We provide solar PV to help reduce energy costs. Domestic & commercial installati

• H HSEnergy Burgess Hill · Solar PV

  HSZen Smart offers solar panels, energy storage, EV chargers, electrical services, and home insulation to reduce energy bills.

• H Hsenergy Group Ltd Burgess Hill · Solar PV · 10-49 employees

  HSEnergy Group is a leading provider of renewable energy solutions, offering solar panels, energy storage, EV chargers, electrical services, and home

• 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 Hts Electrical Ltd Sheffield · Electrical

  Your trusted domestic & commercial electrician in Sheffield, serving South Yorkshire. 22 years experience in energy-efficient installations & solution

• H Hudson Energy Group Liverpool · Electrical

  Hudson Energy Group provides EICRs, EPCs, and electrical services for homes and businesses, focusing on safety, efficiency, and reliability. Fully acc

• H Hugh Simpson (Contractors) Ltd Wick · Crane hire · 10-49 employees

  Northern Scotland's leading lifting and plant-hire company, offering specialist lifting advice, bespoke packages, full service contracts, and strict h

• H Hummerston Engineering Ltd Buntingford · Groundworks

  Groundworks Contractor Hertfordshire with 20+ years experience. Achilles UVDB, SafeContractor and EUSR approved for utility work. Call 01763 788802 to

• H Hunt Energy Group Ltd Pudsey · Electrical

  MCS Accredited Solar Panel, Battery Storage and EV Charging Installers in Yorkshire. Hunt Energy is a local electrical company providing expert domest