Energy construction companies in London

712 companies across London working in the energy sector.

• J JL Phillips Renewable Energy London · Solar PV

  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

  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

• J Joju Solar London · Solar PV

  Multi Award-Winning Solar & EV Charging Specialists. Independent experts in solar, battery storage, and EV charging. We've designed and installed thou

• J Jol Group Ltd Upminster · Electrical

  JOL GROUP provides professional electrical solutions for commercial, industrial, and residential clients. Specialising in installations, EICR testing,

• J Joseph Gallagher Group Orsett · Civil engineering

  Global end to end tunnelling contractors operating above and below ground. Specialist sub-contractors for high-risk tunnelling, underground works and

• J Joseph Gallagher Group Orsett · Civil engineering

  Global end to end tunnelling contractors operating above and below ground. Specialist sub-contractors for high-risk tunnelling, underground works and

• J Joule Group International Ltd London · Fire protection · 10-49 employees

  Joule Group is a leading international consultancy transforming fire safety and its management in the built environment, ensuring safe and sustainable

• J Jrl Drylining Ltd Borehamwood · Design & build

  The JRL Group encompasses 14+ divisions delivering bespoke solutions for complex projects, integrating design, manufacturing, and logistics for reside

• J Jrl Environmental Ltd Borehamwood · Design & build · 50-249 employees

  JRL Group offers integrated construction solutions, managing design, manufacturing, and logistics in-house to minimize risk and ensure certainty for c

• J JRL Group Borehamwood · Main contractor · 250+ employees

  The JRL Group encompasses 14+ divisions delivering bespoke solutions for complex projects, integrating design, manufacturing, and logistics for reside

• J Juicy London · Solar PV

  Juicy provides home battery solutions, installed from £2,999, to reduce electricity bills by charging overnight when cheap and powering homes when exp

• J Jünger+Gräter London · Refurbishment

  Jünger+Gräter is a global expert in refractories and chimney construction, offering innovative know-how and tailored solutions for demanding industrie

• K Kaevelon Ltd Erith · Property developer · 1-9 employees

  Kaevelon Limited is a UK-based financial consulting firm specialising in investment solutions, project funding, joint ventures, and cryptocurrency inv

• K Kajima Europe Ltd London · Property developer

  Kajima Europe is the holding company for the European investment and operational businesses of Kajima Corporation, a major Japanese construction and r

• K Kam Surveys Ltd London · M&E contracting

  Bringing engineering and data analysis expertise together, providing clients accurate outputs for their built environments.

• K Keigen London · Plumbing

  Keigen helps teams verify which traffic, growth, campaign outcomes, rewards, and AI-agent actions deserve trust before commercial action.

• K Kelly Group Wembley · Utilities

  Kelly Group builds telecommunication and utility networks, connecting people globally. With over 40 years of experience, they offer safe, innovative s

• K Keltbray Ltd Esher · Demolition

  Keltbray is a specialist engineering and early-stage construction provider in the UK built environment sectors. They offer integrated solutions across

• K KEMET ENGINEERING Ilford · Electrical

  KEMET is a leading supplier of reliable power and energy systems and process instruments for diverse industrial applications. We offer innovative tech

• K Kenstruct Ltd London · Main contractor

  Kenstruct Ltd is a construction company specialising in general and petroleum-related facilities, including gas stations, convenience stores, and car

• K Kern Tunneltechnik Ltd London · Formwork

  KERN Tunneltechnik provides high-tech solutions for tunnelling, specializing in advanced machinery and engineering for underground infrastructure. A m

• K Kew Solar Ltd Wembley · Solar PV

  Kew Solar provides professional hybrid solar panel installations for homes, businesses, and industrial properties in Wembley and beyond. Specialising

• K Kilnbridge Structural Services Ltd London · Main contractor

  Kilnbridge is the UK's leading structures specialist, known for delivering complex and iconic construction and infrastructure projects across the UK.

• K Kinetic Construction Services Epsom · Fit-out & interiors

  High-end commercial and industrial fit-outs and refurbishments across London and the home counties. Over 40 years of experience.

• K Kingdom Energy Ltd London · Solar PV · 10-49 employees

  Kingdom Energy provides a one-stop solution for renewable energy investments, covering greenfield development, EPC services, equipment supply, and ass

• K Kings Boiler Hire Essex · Heating & ventilation

  Kings Boiler Hire offer the UK's widest choice in industrial steam boiler hire, hot water boiler hire and tank hire on short or long-term rental for p

• K Kings Boiler Hire Nazeing · Heating & ventilation

  Kings Boiler Hire offers UK-wide industrial steam and hot water boiler hire, plus tank hire. They also sell a wide range of boilers, spares, and chimn

• K Kipo Ltd Croydon · M&E contracting

  MEP Consulting Engineers offering specialist design services, building services design checks, power system studies, power failure recovery, sustainab

• K Kortex London · Civil engineering

  Kortex by Orkora is an infrastructure-intelligence platform that screens sites for large grid connections, offering data-driven verdicts on data centr

• L Labourtek Ltd London · Groundworks

  Labourtek Ltd provides skilled general labourers, loading gangs, and after-builders cleaning services. We pride ourselves on a professional, trained t

• L Lane & Frankham Ltd Sidcup · Design & build · 10-49 employees

  Frankham Group is a multidisciplinary built environment consultancy providing integrated compliance, surveying, engineering, and design services. Top

• L Lanka Property Services Ltd Epsom · Electrical

  Family-run building service and construction company in Epsom, Surrey, offering project management and accredited installation services from construct

• L Letwear Ltd London · Fit-out & interiors

  Letwear are manufacturers of custom sportswear for all water sports games like Rowing, Swimming & Diving, Sailing, Surfing, Water Polo, Waterskiing, C

• L Liberty Industrial Ltd London · Demolition

  Award-winning international deconstruction, decommissioning, and remediation contracting business, undertaking complex projects in mining, oil & gas,

• L Lime London · Solar PV

  Powering Homes and Businesses with clean renewable energy built around your needs. Making the move to renewable energy simpler and smarter.

• L LMG London · M&E contracting

  LMG provides the framework for a new generation of connected buildings. From Siloed to Seamless - Raising the bar for Smart Buildings.

• L LMG London · Electrical

  LMG provides a comprehensive, full-service proposition as a building technology (PropTech) partner, ensuring global project delivery, management, and

• L Loadgen Ltd London · Plant hire

  Loadgen are trusted hire suppliers of a wide range of generators, loadbanks, switchgear and ancillaries to customers across the UK. Offering tailored

• L London EV Chargers London · EV charging

  London's five-star certified installers. Get fast, fixed-price quote today. We provide expert advice on OZEV grants.

• L London Renewable Installations London · Solar PV

  London Renewable Installations Ltd specialises in solar PV, battery storage, and EV chargers for residential and commercial properties. Get free quote

• L LondonRefurbs Feltham · Refurbishment

  LondonRefurbs is a local trade directory for finding refurbishment and trade companies in London. Search by service, job, or area, and browse company

• L LOW CARBON LONDON LTD London · Solar PV

  Low Carbon London Ltd installs air source heat pumps from £10,000, handling the £7,500 Boiler Upgrade Scheme grant. Samsung specialists with a 7-year

• L Lunar Solar London · Solar PV

  Lunar Solar provides expert solar panel and battery storage installations for UK homes. Get a free quote and start saving on your energy bills today.

• L LW Pipe Solutions LTD London · Heating & ventilation · 1-9 employees

  LW Pipe Solutions LTD offers sustainable energy-efficient solutions, integrating green technologies into plumbing. Specialising in heat pumps, boilers

• M M Maintenance Ltd London · Refurbishment · 1-9 employees

  Z&M Maintenance LTD is a leading construction company dedicated to delivering exceptional construction services. We specialize in a wide range of cons

• M Mace Construct Ltd London · Main contractor

  Mace is a global expert in shaping the built environment. We deliver world-leading construction and consultancy services, creating sustainable places

• M Mace Ltd London · Main contractor

  Mace is a global expert in shaping and accelerating the built environment. We partner with clients to deliver transformational projects.

• M Mallow Island London · Modular & offsite construction · 1-9 employees

  Mallow Island is a project for a modular, autonomous, inclusive floating smart city, built using sustainable smart floating platforms.

• M Mane Utility Ltd Edgware · Utilities · 1-9 employees

  Mane Utility Ltd is a UK-based contractor specialising in electricity, water, telecommunications, and general building & civil engineering infrastruct