Toggle Search Quick access to official registers, regulatory guidance, professional organisations and technical resources covering heating, plumbing, refrigeration, air conditioning, electrical work and renewable-energy systems.
Important: Regulations, qualifications and registration requirements can change. Always confirm the latest requirements with the relevant regulator or scheme provider before carrying out regulated work.
Registration, safety information and industry support for businesses and engineers working with gas appliances.
The official registration body for businesses and engineers legally permitted to carry out gas work in the United Kingdom.
Visit Gas Safe RegisterOfficial HSE information about gas safety, relevant legislation and employer responsibilities.
View HSE Gas GuidanceTechnical, certification and membership services supporting the heating and wider building-services sectors.
Visit CORGI ServicesCertification, legal requirements and professional information for refrigeration, air conditioning and heat pump work involving fluorinated gases.
A leading UK F-Gas company-certification scheme, including a searchable register of certified businesses.
Visit REFCOMOfficial GOV.UK guidance explaining the qualifications required to work on equipment containing F-Gas.
View F-Gas Qualification GuidanceEnvironment Agency service for organisations that need to apply for or manage F-Gas quota and submit applicable reports.
Open the F-Gas RegisterProfessional membership, technical guidance, training and industry information for refrigeration, air conditioning and heat pumps.
Visit the Institute of RefrigerationThe Air Conditioning and Refrigeration Industry Board provides information about skills, qualifications and industry standards.
Visit ACRIBThe Building Engineering Services Association supports businesses working across heating, ventilation, refrigeration and building services.
Visit BESACompetent-person schemes and technical information for oil, biomass, wood-burning and solid-fuel systems.
Registration, technical guidance and a searchable register for technicians working with oil heating and selected renewable technologies.
Visit OFTECThe recognised competent-person scheme for biomass and solid-fuel heating, including registered installers and chimney sweeps.
Visit HETASInformation and guidance covering solid fuels, appliances, safe use and responsible heating.
Visit the Solid Fuel AssociationProfessional bodies, approved-contractor information and water-product compliance resources.
The Association of Plumbing and Heating Contractors supports plumbing and heating businesses across England and Wales.
Visit APHCThe Chartered Institute of Plumbing and Heating Engineering supports professional standards, education and technical development.
Visit CIPHEA UK register of approved drinking-water contractors supported by water companies and water-industry organisations.
Visit WaterSafeInformation about water fittings and products assessed against applicable UK water-regulation requirements.
Visit WRAS ApprovalsRegistration schemes and safety information for electrical installers, contractors and customers.
Certification and assessment services for electrical, renewable-energy and building-services contractors.
Visit NICEICMembership, certification and competent-person schemes for electrical and wider building-services installers.
Visit NAPITIndependent electrical-safety guidance for consumers, landlords and industry professionals.
Visit Electrical Safety FirstCertification schemes and industry information covering heat pumps, solar energy and other low-carbon technologies.
The recognised standards and certification scheme for small-scale renewable-energy technologies and installers.
Visit MCSThe government-endorsed quality scheme for work carried out in and around domestic properties.
Visit TrustMarkConsumer-protection standards for businesses selling or leasing small-scale renewable and low-carbon systems.
Visit RECCIndustry information, policy updates and technical resources supporting the UK heat-pump sector.
Visit the Heat Pump AssociationOfficial information about building regulations, approvals and compliance responsibilities.
GOV.UK guidance explaining when building-regulation approval may be required and how applications are handled.
View GOV.UK GuidanceGuidance about planning permission, building regulations and responsibilities in England and Wales.
Visit Planning PortalOfficial workplace health-and-safety information, legislation and practical guidance.
Visit HSEProfessional membership, technical knowledge and industry development across building-services engineering.
The Chartered Institution of Building Services Engineers provides technical knowledge, publications, training and professional membership.
Visit CIBSESupport, training, certification and industry representation for building-engineering-services businesses.
Visit BESAThese organisations provide regulatory and professional information. If you need help identifying or sourcing a heating, plumbing, cooling or renewable component, contact PHC Parts.
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