Gas Safe accredited companies in London

353 construction companies in and around London displaying Gas Safe.

• I INFINITY HEATING SOLUTIONS AND PROPERTY MAINTENANCE LTD London · Heating & ventilation

  Gas Safe registered engineers for boiler installation, servicing and rapid repairs across Birmingham, Great Barr, Sutton Coldfield and surrounding sub

• 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 InstaGasWorks London · Plumbing

  Gas Safe registered plumbers and heating engineers across South London. Boiler repairs, servicing, installation and 24/7 emergency plumbing. Call 0208

• 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 IQ Plumbing London London · Plumbing

  IQ Plumbing is London's leading provider of expert plumbing, heating, and boiler services. Available 24/7 for emergencies. Gas Safe registered and ful

• I Ivell Plumbing & Heating Ltd London · Plumbing

  Ivell Plumbing & Heating Ltd offers 24/7 emergency plumbing, boiler breakdowns, gas safety inspections, central heating installation, and leaky pipe r

• J J O'Connor London · Heating & ventilation

  J O'Connor is a national mechanical and electrical contractor established over 25 years ago, serving public, commercial, and private sectors with a 24

• J J Pearson Trading Ltd London · Heating & ventilation

  Professional boiler installations, central heating, MVHR systems & plumbing services across London. 20 years experience. Same-day callouts available.

• J J Smith & Sons London · Heating & ventilation

  J Smith & Sons Ltd in Epping offers reliable heating, plumbing, boiler and central heating services to its clients across Essex & Herts.

• J James A. Turner Ltd London · Plumbing · 10-49 employees

  A Trusted Local Company Since 1968. For nearly six decades, James A Turner Heating & Plumbing has built a reputation across Hertford for dependable pl

• J James Winney Heating And Gas Ltd London · Plumbing

  Plumbers and Gas Engineers in Streatham, South London. Offering boiler installation, central heating, plumbing, gas works, and bathroom refurbishments

• J Jbl Plumbing & Heating Ltd London · Plumbing

  JBL Plumbing & Heating offers comprehensive plumbing and heating services across London, including emergency repairs, boiler services, and residential

• J JCH London London · Heating & ventilation · 1-9 employees

  JCH London offers expert heating, ventilation, and green energy solutions for domestic and commercial clients across London, focusing on quality workm

• J Jemm Solutions & Co Ltd London · Plumbing

  Jemm Solutions & Co LTD offers comprehensive plumbing and heating services in London, specializing in boiler installation, repair, heating systems, an

• J Jht Energy Services Ltd London · Heating & ventilation

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

• J Jp Mechanical Ltd London · Plumbing

  JP Mechanical Ltd provides expert plumbing, heating, and HVAC services across London. Rapid response, reliable workmanship, and tailored mechanical so

• J JP Project Management London · Refurbishment · 1-9 employees

  JP Project Management is a London-based construction firm providing high-quality residential and commercial building services, renovations, and mainte

• J Just Services Group London · Heating & ventilation

  Boiler, plumbing, air conditioning and home cover specialists serving South London since 2016. Professional, friendly, Gas Safe registered engineers.

• K Kalium Construction London · Refurbishment

  PRESTIGE MARBLE LTD offers expert kitchen and bathroom renovation services in London, focusing on quality, precision, and client satisfaction. We deli

• K KBK Property Services London · Refurbishment

  KBK Property Services offers high-quality, cost-effective property maintenance to domestic and commercial clients in London and the South East. Establ

• K KCS ELECTRICS LTD London · Electrical

  NICEIC approved electricians and Gas Safe engineers in London. We provide electrical installations, EICRs, and landlord safety certificates. Book a se

• K Kemco Plumbing & Heating London · Plumbing

  Kemco Plumbing & Heating are Gas Safe registered engineers providing reliable plumbing, heating, and boiler services across London and the South East.

• K Kentek Engineering London · Heating & ventilation

  Kentek Engineering offers expert domestic and commercial heating and plumbing services, focusing on quality, efficiency, and customer satisfaction. Th

• K Keylight Services Ltd London · Electrical · 1-9 employees

  Keylight Services offers expert electrical and mechanical engineering solutions in London, alongside specialised painting and decorating services for

• K Keystone London Group Ltd London · Plumbing

  Trusted London plumber for plumbing, heating, boiler repairs, air conditioning and emergencies across West, South West and Central London.

• K Knights Heating Ltd London · Heating & ventilation

  Knights Heating Ltd is your local Gas Engineer in East and North London, offering expert boiler repairs, installations, gas safety certificates, and c

• K KRAMAN Ltd London · Refurbishment

  FMB-accredited London builders since 2006. Refurbishments, extensions, conversions and bespoke joinery across East, Central, South East and North Lond

• K Kris Company Ltd London · Refurbishment

  Kris Company LTD is a building company in Ealing with over 20 years experience in helping people transform their homes, from simple redecorating to ba

• K Kv Heating & Plumbing Ltd London · Heating & ventilation

  Trusted heating and plumbing experts in London, providing energy-efficient solutions, system maintenance, and installation services for residential an

• L LDN MAINTENANCE SERVICES London · Electrical

  LDN Maintenance Services: Your all-in-one property partner in East London. Accredited electricians, plumbers, and builders. Call for a free quote.

• L Lita Construction Ltd London · Groundworks

  Lita Construction is a major construction firm based in South East London, offering UK-wide services in groundwork, steel fixing, basements, foundatio

• L London Concept Developments Ltd London · Main contractor

  A leading London construction company delivering projects of every scale, from small refurbishments to multi-million-pound new builds, across London a

• L London Efficiency Ltd London · Plumbing · 10-49 employees

  London Efficiency offers expert plumbing, heating, and gas services with 30 years of experience. We provide reliable, high-quality solutions for homeo

• L London Flows Ltd London · Drainage

  London Flows provides trusted drainage, plumbing, heating and gas services for homeowners, landlords, businesses & local authorities across London.

• L London Gas Inspections Ltd London · Heating & ventilation

  London Gas Inspections Ltd (LGI) specialises in Gas Safety Inspections and Boiler Servicing across London. Offering professional, reliable services fo

• L London Heating Solutions London · Heating & ventilation

  London Heating Solutions offers expert boiler installation, repair, and servicing by Gas Safe registered engineers. We are Worcester Accredited Instal

• L London Luxury Bathrooms London · Bathroom fitting

  Expert bespoke bathroom renovations in North Southwark. Transform your space with luxury finishes and professional craftsmanship. Get your free quote

• 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 Lowes Heating Company Ltd London · Heating & ventilation

  Lowes Heating Co Ltd. is a family-run business, we take pride in keeping homes warm and comfortable.

• L Lumar Construction L London · Refurbishment · 1-9 employees

  Lumar Construction Ltd. is a London-based construction company specializing in home renovations, offering services like kitchen and bathroom remodels,

• L LURA CONSTRUCTIONS LTD London · Refurbishment · 10-49 employees

  Lura Construction offers a comprehensive range of services from repairs and refurbishment to large-scale retrofit works, focusing on building better c

• L Lxm Building Services Ltd London · Refurbishment

  LXM Building Services Ltd. offers high-quality construction, refurbishments, loft conversions, extensions & more across London. Trusted by homeowners

• L Lyons Heating and Plumbing Solutions London · Plumbing

  Gas Safe registered plumbers and heating engineers based in North London. Honest work, real people, and a service built on trust. Call Lyons Heating t

• M M & Z Builders & Decorators Ltd London · Bathroom fitting

  M&Z Builders and Decorators Ltd are an established bathroom installation company in North West London, specialising in luxury wet rooms and bathrooms.

• M M.W.Heating Solutions Ltd London · Heating & ventilation

  Reliable boiler installation, servicing and repairs with certified gas safety certificates in South London. Trusted heating contractor since establish

• M M&E Heating and Property Services London · Heating & ventilation

  M&E Heating and Property Services offers a wide range of property maintenance services including pre-purchase surveys, refurbishments, ongoing repairs

• M M&E Services London · Heating & ventilation

  M&E Services (Lincs) Ltd offers expert plumbing, heating, gas, and electrical services across Lincolnshire and Cambridgeshire, including heat pump sol

• M M&E Services Ltd London · M&E contracting

  Re-Gen M&E Services provides Mechanical and Electrical solutions across London and the South East with over 20 years of industry expertise.

• M M25 Gas Safety Engineers Ltd London · Heating & ventilation

  M25 Gas Safety Engineers Ltd offers commercial and domestic gas safety certificates, boiler servicing, installation, and repair. Covering all London a

• M Magico Plumbing And Heating London · Plumbing

  Gas Safe registered plumber serving London, Essex & Hertfordshire for 15+ years. Emergency plumbing, boiler repairs & gas engineer services.