Heating & ventilation contractors in Wales working in residential

255 heating & ventilation contractors across Wales working in the residential sector.

• G Greenlands Energy Tredegar · Heating & ventilation · 10-49 employees

  Greenlands Energy: Leading the way in sustainable energy solutions. Discover our innovative approaches to solar, wind, and geothermal energy that powe

• G Groves Gas Ltd Cwmbran · Heating & ventilation

  Groves Gas is a family-centred business founded in 2006, aiming to be the leading independent gas, plumbing, and heating business in Wales. We pride o

• G Gwresogi Ltd Pwllheli · Heating & ventilation

  Renewable Heating, Plumbing & Solar Done Right. Featured By MCS See how Gwresogi is helping drive Wales' green energy transition At Gwresogi, we speci

• H H.D Heating Cardigan · Heating & ventilation

  HD Heating: trusted specialists in heating, renewable energy solutions, and plumbing services across Ceredigion, Pembrokeshire & Carmarthenshire.

• H H.Marshall Plumbing And Heating Services Ltd Barry · Plumbing

  H. Marshall Plumbing and Heating Services offers professional and reliable plumbing and heating services in Cardiff and the Vale of Glamorgan.

• H Hale Heating and Renewables Swansea · Heating & ventilation · 1-9 employees

  Hale Heating and Renewables offers expert plumbing, heating, and solar PV solutions for domestic and commercial clients across the UK.

• H Harvey T Ross LTD Newport · Plumbing

  Expert plumbing, heating, and bathroom installation services in Newport. Gas Safe registered and 5-star rated for boiler repairs, heating, and luxury

• H Haus Garden Rooms Ltd Cardiff · Design & build

  HAUS Garden Rooms designs and builds custom, fully insulated garden rooms in South Wales, offering electrics, heating, and warranties up to 25 years.

• H Heat Pumps Scotland Cardiff · Heating & ventilation · 1-9 employees

  Heat Pumps Scotland provides information and connects users with professional installers for air, ground, and water source heat pump systems, promotin

• H Heat Pumps South Wales LTD Llanelli · Heating & ventilation

  Heat Pumps South Wales LTD offers expert heat pump installation, repair, and maintenance services in Cardiff and surrounding areas. Specialising in en

• H Heat Saving Specialists Llanelli · Heating & ventilation

  Reducing the cost of home energy bills by securing grants for central heating upgrades such as boilers, air source heating, radiators and extra home i

• H HeaterUp Swansea · Heating & ventilation

  Swansea Heating & Gas Specialists - Boiler Upgrades, Central Heating Systems and All Plumbing Services in South Wales. Slash bills with cost-efficient

• H HEATING AND BOILERS (DYFED) LIMITED Newcastle Emlyn · Heating & ventilation · 10-49 employees

  Gas Safe, OFTEC, MCS & HETAS registered heating engineers in Newcastle Emlyn. Boiler installation, servicing & repair across Ceredigion and Carmarthen

• H Heatshine Ltd Cardigan · Plumbing

  Professional, friendly Plumbers and Heating Engineers, specialising in Oil, Gas & Renewable Energy. Speak to one of our engineers for free, friendly a

• H Heatwood Services Ltd Cwmbran · Plumbing

  Reliable Heating Engineer Cwmbran offering expert plumbing, gas, and carpentry services. Local, friendly, and available 24/7 for emergencies.

• H Helix Plumbing & Gas Swansea · Plumbing

  Helix Plumbing & Gas offers expert boiler installation, servicing, and repair in South Wales. Led by Josh Halls, we ensure your home's comfort and saf

• H Highadmit Projects Talbot Green · M&E contracting · 1-9 employees

  Highadmit Projects undertake large, medium and small contracts throughout the UK offering a complete design service in all aspects of Mechanical and E

• H Hybrid Heating & Gas Ltd Bridgend · Heating & ventilation

  Hybrid Heating & Gas Ltd offers expert plumbing, heating, gas, and oil solutions across South Wales and London. Licensed by Gas Safe and OFTEC, we pro

• I I.S.T.L. Engineering Ltd Bedwas · M&E contracting · 10-49 employees

  Established in 1995, ISTL is a full-service mechanical and electrical design and build contractor based in Cardiff.

• I Infinity Plumbing Wales Ltd Pontypridd · Plumbing · 1-9 employees

  Infinity Plumbing Wales Ltd are your trusted South Wales plumbing and heating experts, offering reliable services for homes and businesses. Available

• I Intelligent Electrical NW Wrexham · Electrical · 1-9 employees

  Intelligent Electrical NW is your local Electrical, Smart home & security installers with a passion for technology & customer satisfaction

• I Interlec Systems (Newport) Ltd Newport · Electrical

  Interlec Systems are approved electrical installers for Industrial, Commercial & Domestic clients, providing a comprehensive service since 1995. Deliv

• I Ir Energy Ltd Pant Industrial Estate · Solar PV · 10-49 employees

  Save on bills with solar, heat pumps & EV chargers. IR Energy helps South Wales homes go greener with trusted renewable installations. Grant & finance

• I IVD HEATING Swansea · Heating & ventilation

  IVD Heating offers expert heating and plumbing services in Port Talbot, including boiler replacements, servicing, and repairs. Gas Safe registered wit

• I Ivor Cook Ltd Newport · Heating & ventilation

  Ivor Cook Ltd offers heating, plumbing, and electrical services, including compliance and renewable technologies. Gas Safe Registered and 18th Edition

• J J R Heating Services Ltd Barry · Heating & ventilation · 1-9 employees

  JR Heating Services Ltd is a family-run, Gas Safe registered business based in Barry, serving homeowners and landlords across South Wales. Specialisin

• J Jjl Energy Services Ltd Swansea · Heating & ventilation

  Gas Safe registered heating engineers with 30+ years experience. Underfloor heating, boiler installs, and energy solutions across South Wales.

• J Jsh Plumbing & Heating Ltd Barry · Plumbing

  Plumbers and Heating Engineers in Barry, JSH Plumbing & Heating Ltd offers expert plumbing and heating solutions with over 30 years of experience. Gas

• J JSM HEATING SERVICES LTD Pontypool · Heating & ventilation

  Expert boiler and central heating engineers providing installation, repair, and servicing. Offering dependable heating services with a 12-month workma

• J Jv Ventilation Ltd Newport · Heating & ventilation · 1-9 employees

  JV Ventilation Ltd specialises in Mechanical Ventilation with Heat Recovery (MVHR) systems, offering design, supply, installation, and commissioning s

• K K S Barry (Plumbing & Heating) Ltd South Glamorgan · Plumbing · 10-49 employees

  Providing mechanical and associated services solutions on commercial construction projects with exceptional quality, attention to detail and site safe

• K Kevco Construction UK Ltd Rhyl · Main contractor · 1-9 employees

  Kevco Construction UK Ltd is a professional building company in North Wales, specialising in high-quality property improvements and maintenance for do

• K KHS Group Ltd St. Asaph · M&E contracting

  KHS Group provides mechanical, electrical, and renewable building services, including air conditioning and commercial refrigeration, for commercial, i

• K Krols Brothers Ltd Swansea · Refurbishment

  Krols Brothers Ltd is a family-run construction and renovation company offering services across Wales and the South West of England. Specializing in r

• L L A Emery Building Services Ltd Cardiff · Main contractor · 1-9 employees

  LA Emery Building Services Ltd is a 4th generation company with 50 years of combined experience, offering high-quality building and improvement servic

• L Laver Group Ltd Pontypridd · Heating & ventilation · 50-249 employees

  Est. Since 1981 Specialising in heating, electrical and renewable energy. We help domestic, public, and private sector clients meet their obligations

• L LAW Construction Rhyl · Main contractor · 10-49 employees

  LAW Construction delivers commercial building, maintenance and public sector services across North Wales and the North West.

• L Lee Wright Plumbing & Heating Ltd Wrexham · Plumbing

  Providing services for all of your home maintenance requirements in and around Wrexham, including heating, plumbing, bathrooms and repairs.

• L Leetech Gas Engineers Ltd Cwmbran · Plumbing

  Leetech Gas Engineers Ltd is a professional and Gas Safe registered plumbing and heating company based in Newport, specialising in the repair and upgr

• L Let's Heat Cardiff · Heating & ventilation

  New boilers, boiler installation, servicing, repairs, and air conditioning across Cardiff, South Wales, and Bristol with Gas Safe registered engineers

• L Limitless Energy Ltd Swansea · Solar PV

  Limitless Energy is a leading installer of renewable heating and electrical systems in South Wales, specialising in Solar PV, Heat Pumps, and EV Charg

• L Lloyd & Gravell Ltd Llanelli · Main contractor · 50-249 employees

  Lloyd & Gravell are one of Wales's leading construction firms and a national award-winning contractor. They construct, refurbish and repair buildings

• L Lmb Plumbing & Heating Ltd Bridgend · Plumbing

  Gas Safe registered boiler installation, servicing and repair across Bridgend, Pencoed and South Wales. Fixed prices from £1,900, owner-led, and rated

• L LMG Home Improvements Ltd Port Talbot · Insulation

  With over 15 years of experience in the insulation and heating industries LMG Home Improvements provide an expert service throughout Wales and the Wes

• L Localtradesuk Ltd Newport · Plumbing · 1-9 employees

  LocalTradesUK is a team of trusted local professionals offering a range of property services in Cardiff and Newport. Call us today!

• L LV PLUMBING & GAS LTD Neath · Plumbing

  LV Plumbing & Gas Ltd offers expert plumbing, heating, and engineering services in Neath Port Talbot and South Wales. With over 12 years of experience

• M M.J. Harris Domestic Repairs Cardiff · Plumbing

  MJ Harris are specialist engineers for domestic repairs including plumbing, drainage, and boiler repairs, servicing South Wales and West of England.

• M M&E Connect Mountain Ash · M&E contracting

  M&E Connect delivers expert mechanical and electrical design, installation, and maintenance services across the UK. With 30+ years of experience, M an

• M Madley Renewables Cardiff · Heating & ventilation · 10-49 employees

  Sustainable heating solutions from Madley Renewables. Save money, reduce your carbon footprint, and enjoy a greener future.

• M MAINTY Group Newport · Refurbishment · 10-49 employees

  MAINTY Group is your one-stop shop for property, refurbishment, development, planned and reactive maintenance, and facilities management. Operating as