Gas Safe accredited companies in London

353 construction companies in and around London displaying Gas Safe.

• F First Landlord Certificates London London · Electrical · 1-9 employees

  Book landlord certificates and request electrical services across London. EICR, EPC, CP12, fire safety, PAT, HMO and electrical work from First Landlo

• F Flawless Constructions Ltd London · Painting & decorating · 1-9 employees

  Flawless Constructions Ltd offers affordable, original, and bespoke building services with over 25 years of experience. Specialising in listed buildin

• F Ford Gas Services Ltd London · Heating & ventilation

  Ford Gas Services offers central heating, general plumbing, boiler servicing and repairs in London, Brentford, Southall, Chiswick areas with Over 10 y

• F Franklynair London · Air conditioning · 1-9 employees

  Franklyn Air provides air conditioning installation, servicing and repair solutions for homes and businesses across London and the South East.

• F Fyndpris Ltd London · Utilities

  Fyndpris Ltd offers smart, simple, and cost-effective utility connections for gas, electricity, and water to homeowners, developers, and businesses ac

• G Ga Mechanical Ltd London · Heating & ventilation

  Professional, reliable HVAC, Gas, Soil, Water & Drainage mechanical services across the UK. Services & Support that won't let you down.

• G Gas and Heating Pro London · Heating & ventilation

  Gas & Heating Pro: Your trusted commercial gas engineer in London. Quality services for businesses.

• G Gas Care Plus London · Plumbing

  Your trusted local plumbing and heating experts with 20+ years' experience. Gas Safe certified engineers for quality and reliability.

• G Gas Certify Ltd London · Electrical

  Gas Certify offers certified gas safety certificates, boiler servicing, EICR checks, and landlord compliance services in London. Book online with tran

• G Gas First Ltd London · Heating & ventilation

  Gas Safe registered engineers in East London for boiler repair, servicing, gas safety certificates & emergency call-outs. Fast, reliable service for h

• G Gas Flow 4U London · Plumbing

  Gas Flow 4U offers Gas Safe registered plumbing and heating services across London, specializing in boiler installations, repairs, servicing, and land

• G Gas Ray London · Plumbing

  Gas Ray provides domestic gas, plumbing, and heating services in London. As a family-owned business, they offer expert advice and reliable service for

• G Gas Weiss Plumbing & Heating Ltd London · Plumbing

  Gas Weiss Plumbing & Heating offers expert boiler installations, repairs, servicing, and Gas Safe certification across London. We provide emergency pl

• G Gaslords Ltd London · Plumbing

  GASLORDS 24/7 EMERGENCY PLUMBERS: friendly and dependable plumbing and gas engineering experts in Kentish Town, serving London. Gas Safe registered sp

• G GASWAVE PLUMBING & HEATING LTD London · Plumbing

  GasWave offers 24/7 emergency plumbing, heating, and boiler repair services across Greater London and Essex, guaranteeing a 1-2 hour response time.

• G Gill Plumbing Services London · Plumbing

  Emergency plumbing, boiler repairs and G3 cylinder services across South East London and Bromley, including SE1, Bermondsey, Dulwich and BR1.

• 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 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 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

• 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 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 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 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-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 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 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 Heroes on Hand London · Plumbing

  Heroes on Hand are Gas Safe registered engineers providing plumbing, heating, and boiler services in Hemel Hempstead, North London, and Hertfordshire.

• H Hgh Plumbing & Heating Ltd London · Plumbing

  Local Gas Safe registered plumbing & heating in Barnet, Brent, Harrow & North London. Boiler installation & repair, bathrooms, central heating. 5★ rat

• H Highgate Heating And Plumbing Ltd. London · Plumbing

  Highgate Heating and Plumbing Ltd. are a reputable and reliable plumbing, heating, building, tiling & electrical company with many years' experience.

• H Hive Craft London Ltd London · Refurbishment

  Hive Craft London Ltd offers trusted home improvement, refurbishment, and maintenance services across London. Specialising in plumbing, electrical, he

• H Hmr Plumbers Ltd London · Plumbing

  Highly rated plumbers in London offering 24/7 emergency repairs, boiler installations, leak detection & bathroom fitting. Gas Safe registered with fas

• H HOME EMERGENCIES DIRECT London · Plumbing

  Home Emergencies Direct offers 24/7 emergency maintenance for heating, plumbing, and electrical issues nationwide. With qualified Gas Safe & NICEIC en

• H Home Utility Ltd London · Electrical

  Home Utility offers 24/7 home repair services in London, including expert appliance, plumbing, heating, and electrical solutions with fast response an

• H HOME V LTD London · Refurbishment

  Home V Ltd offers property maintenance, handyman, decorating, carpentry, plumbing, and electrical services in London. They provide 24/7 emergency call

• 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 Howgrove London · Plumbing

  Howgrove Plumbing and Heating specialises in top-tier plumbing and heating installations for the new build sector, including air source heat pumps.

• H Huntley Contractors Ltd London · Refurbishment · 1-9 employees

  Huntley Contractors Ltd offers expert property renovations, extensions, and loft conversions in London. Contact us for quality services.

• H Hurlingham Heating Ltd London · M&E contracting

  Family-run mechanical and electrical contractor with over 20 years of experience delivering high-quality heating, compliance, and building services fo

• I I STAR MAINTENANCE LTD London · Plumbing

  Istar Maintenance offers certified Plumbing, Gas, and Electrical services in London, ensuring property maintenance meets rigorous safety and quality b

• I I.N Plumbing and Central Heating London · Plumbing

  London plumber serving every borough since 2004. Ilir Nuredini installs and repairs boilers, central heating and bathrooms. Free no-obligation quotes.

• I Igass Ltd London · Plumbing

  IGass Ltd are local Plumbers and Gas Engineers in Stanmore, Harrow offering plumbing, heating, 24-hour emergency call out, and boiler repair services.

• I Ilyrian Construction Ltd London · Main contractor

  Ilyrian Construction Ltd is a London-based family-run building company offering a wide range of property services including new builds, extensions, re

• I Imaa Plumbing London · Plumbing

  Imaa Plumbing offers comprehensive plumbing services in London, including installations, repairs, maintenance, and emergency assistance for residentia