Trade regulations in Wales
Know the legal requirements, certifications, and building regulations before hiring any tradesperson in Wales.
Deep-dive guides, sourced, updated, free
Gas Safe Register in Wales, when you need it, how to verify
By UK law (Gas Safety (Installation and Use) Regulations 1998), only Gas Safe registered engineers can legally…
Pre-hire checklist, verifying any Welsh tradesperson
Before any Welsh tradesperson begins work: verify their trade body register, see proof of insurance, check Com…
TrustMark, FMB & builder vetting in Wales
TrustMark is the government-endorsed scheme, mandatory for any builder taking grant-funded work in Wales and a…
Part P Electrical Regulations in Wales, what you need to know
In Wales, all new electrical circuits, consumer-unit changes, and any work in kitchens, bathrooms, or outdoor …
Welsh Building Regulations 2026, extensions, conversions, council fees
Most structural work, extensions, conversions, and significant alterations to a Welsh home need Building Contr…
FENSA & window regulations in Wales, what you need
If your installer replaced windows after April 2002, they were legally required to either be in a Competent Pe…
Roofing regulations in Wales, safety, scaffolding, NFRC
A roofer must plan safe access (scaffold, harness, or platform) for any work where falling could injure them. …
Welsh Warm Homes & energy grants 2026, Nest, ECO4, MCS
Nest is the Welsh Government's primary grant scheme, free boilers, insulation, heat pumps, and solar for eligi…
65 trade types covered, accreditations, certifications, and what to check before hiring
Plumbers, regulations & accreditations
Look for: Gas Safe · APHC · CIPHE. All of these are verifiable by you via the relevant UK trade body's public register. Any work on gas appliances requires Gas Safe Register certification by law (Health & Safety at Work Act 1974).
Browse plumbers across Wales →Electricians, regulations & accreditations
Look for: NICEIC · NAPIT · Part P. All of these are verifiable by you via the relevant UK trade body's public register. Notifiable electrical work in Wales must comply with Part P of the Building Regulations, only NICEIC, NAPIT, or ELECSA Registered Competent Persons can self-certify.
Browse electricians across Wales →Builders, regulations & accreditations
Look for: FMB · TrustMark · NHBC. All of these are verifiable by you via the relevant UK trade body's public register. Most construction work requires Building Regulations approval via your Welsh local authority. FMB / TrustMark membership is voluntary but signals vetting.
Browse builders across Wales →Roofers, regulations & accreditations
Look for: NFRC · TrustMark · CHAS. All of these are verifiable by you via the relevant UK trade body's public register. Work over 2m typically falls under Working at Height Regulations 2005. NFRC members follow the official roofing competency standard.
Browse roofers across Wales →Painters & Decorators, regulations & accreditations
Look for: Which? Trusted · TrustATrader · CHAS. All of these are verifiable by you via the relevant UK trade body's public register.
Browse painters & decorators across Wales →HVAC & Heating, regulations & accreditations
Look for: Gas Safe · CIPHE · OFTEC. All of these are verifiable by you via the relevant UK trade body's public register. Any work on gas appliances requires Gas Safe Register certification by law (Health & Safety at Work Act 1974).
Browse hvac & heating across Wales →Joiners & Carpenters, regulations & accreditations
Look for: TrustMark · CHAS · FENSA. All of these are verifiable by you via the relevant UK trade body's public register.
Browse joiners & carpenters across Wales →Plasterers, regulations & accreditations
Look for: CHAS · TrustATrader · Which?. All of these are verifiable by you via the relevant UK trade body's public register.
Browse plasterers across Wales →Decorators, regulations & accreditations
Look for: TrustATrader · Which? Trusted · CHAS. All of these are verifiable by you via the relevant UK trade body's public register.
Browse decorators across Wales →Gas Engineers, regulations & accreditations
Look for: Gas Safe · CIPHE · Corgi. All of these are verifiable by you via the relevant UK trade body's public register. Any work on gas appliances requires Gas Safe Register certification by law (Health & Safety at Work Act 1974).
Browse gas engineers across Wales →Locksmiths, regulations & accreditations
Look for: Master Locksmiths · CHAS · TrustATrader. All of these are verifiable by you via the relevant UK trade body's public register.
Browse locksmiths across Wales →Landscapers, regulations & accreditations
Look for: CHAS · TrustMark · Checkatrade. All of these are verifiable by you via the relevant UK trade body's public register.
Browse landscapers across Wales →Rendering & Wall Coatings, regulations & accreditations
Look for: INCA · CHAS · TrustMark. All of these are verifiable by you via the relevant UK trade body's public register.
Browse rendering & wall coatings across Wales →Surveyors, regulations & accreditations
Look for: RICS · CHAS · Checkatrade. All of these are verifiable by you via the relevant UK trade body's public register.
Browse surveyors across Wales →Architects, regulations & accreditations
Look for: RIBA · CHAS · Checkatrade. All of these are verifiable by you via the relevant UK trade body's public register.
Browse architects across Wales →Tree Surgeons, regulations & accreditations
Look for: Arboricultural Association · CHAS · TrustATrader. All of these are verifiable by you via the relevant UK trade body's public register.
Browse tree surgeons across Wales →Drainage & Sewage, regulations & accreditations
Look for: CHAS · Checkatrade · TrustATrader. All of these are verifiable by you via the relevant UK trade body's public register.
Browse drainage & sewage across Wales →Windows & Doors, regulations & accreditations
Look for: FENSA · CHAS · TrustMark. All of these are verifiable by you via the relevant UK trade body's public register. Replacement windows in Wales must be FENSA or CERTASS registered for self-certification, otherwise Building Control sign-off is required.
Browse windows & doors across Wales →Kitchens & Bathrooms, regulations & accreditations
Look for: CHAS · TrustMark · Checkatrade. All of these are verifiable by you via the relevant UK trade body's public register.
Browse kitchens & bathrooms across Wales →Insulation Specialists, regulations & accreditations
Look for: MCS · CHAS · TrustMark. All of these are verifiable by you via the relevant UK trade body's public register. Government-funded insulation (ECO, Welsh Warm Homes) requires MCS or TrustMark registered installers.
Browse insulation specialists across Wales →Solar Panel Installers, regulations & accreditations
Look for: MCS · CHAS · Checkatrade. All of these are verifiable by you via the relevant UK trade body's public register.
Browse solar panel installers across Wales →Groundworks, regulations & accreditations
Look for: CHAS · TrustMark · Checkatrade. All of these are verifiable by you via the relevant UK trade body's public register.
Browse groundworks across Wales →Concrete & Paving, regulations & accreditations
Look for: CHAS · Checkatrade · TrustATrader. All of these are verifiable by you via the relevant UK trade body's public register.
Browse concrete & paving across Wales →Fencing & Gates, regulations & accreditations
Look for: CHAS · TrustATrader · Checkatrade. All of these are verifiable by you via the relevant UK trade body's public register.
Browse fencing & gates across Wales →Gutters & Fascia, regulations & accreditations
Look for: CHAS · TrustATrader · Checkatrade. All of these are verifiable by you via the relevant UK trade body's public register.
Browse gutters & fascia across Wales →Damp Proofing, regulations & accreditations
Look for: CHAS · Checkatrade · TrustATrader. All of these are verifiable by you via the relevant UK trade body's public register.
Browse damp proofing across Wales →Demolition, regulations & accreditations
Look for: CHAS · Environment Agency · Checkatrade. All of these are verifiable by you via the relevant UK trade body's public register.
Browse demolition across Wales →Scaffolding, regulations & accreditations
Look for: CHAS · NASC · Checkatrade. All of these are verifiable by you via the relevant UK trade body's public register.
Browse scaffolding across Wales →Asbestos Removal, regulations & accreditations
Look for: Licensed Contractor · CHAS · HSE Approved. All of these are verifiable by you via the relevant UK trade body's public register.
Browse asbestos removal across Wales →Appliance Repair, regulations & accreditations
Look for: Gas Safe (if applicable) · CHAS · Checkatrade. All of these are verifiable by you via the relevant UK trade body's public register.
Browse appliance repair across Wales →Handyman & Property Maintenance, regulations & accreditations
Look for: TrustMark · Which? Trusted · Checkatrade. All of these are verifiable by you via the relevant UK trade body's public register.
Browse handyman & property maintenance across Wales →Bricklayers & Stonemasons, regulations & accreditations
Look for: FMB · Guild of Bricklayers · CHAS. All of these are verifiable by you via the relevant UK trade body's public register.
Browse bricklayers & stonemasons across Wales →Driveways & Patios, regulations & accreditations
Look for: Interlay · TrustMark · CHAS. All of these are verifiable by you via the relevant UK trade body's public register.
Browse driveways & patios across Wales →Tilers, regulations & accreditations
Look for: TTA · CHAS · TrustATrader. All of these are verifiable by you via the relevant UK trade body's public register.
Browse tilers across Wales →Flooring & Carpets, regulations & accreditations
Look for: CFA · NICF · TrustATrader. All of these are verifiable by you via the relevant UK trade body's public register.
Browse flooring & carpets across Wales →Security & Alarm Installers, regulations & accreditations
Look for: NSI · SSAIB · CHAS. All of these are verifiable by you via the relevant UK trade body's public register.
Browse security & alarm installers across Wales →Exterior Cleaning, regulations & accreditations
Look for: Federation of Window Cleaners · CHAS · Checkatrade. All of these are verifiable by you via the relevant UK trade body's public register.
Browse exterior cleaning across Wales →Garage Doors & Shutters, regulations & accreditations
Look for: DHF · CHAS · Checkatrade. All of these are verifiable by you via the relevant UK trade body's public register.
Browse garage doors & shutters across Wales →Heat Pump Installers, regulations & accreditations
Look for: MCS · HIES · TrustMark. All of these are verifiable by you via the relevant UK trade body's public register.
Browse heat pump installers across Wales →Garden Rooms & Outbuildings, regulations & accreditations
Look for: TrustMark · CHAS · Checkatrade. All of these are verifiable by you via the relevant UK trade body's public register.
Browse garden rooms & outbuildings across Wales →Removals, regulations & accreditations
Look for: BAR · NGRS · Checkatrade. All of these are verifiable by you via the relevant UK trade body's public register.
Browse removals across Wales →Pest Control, regulations & accreditations
Look for: BPCA · NPTA · Checkatrade. All of these are verifiable by you via the relevant UK trade body's public register.
Browse pest control across Wales →Blinds & Shutters, regulations & accreditations
Look for: BBSA · Checkatrade. All of these are verifiable by you via the relevant UK trade body's public register.
Browse blinds & shutters across Wales →Stoves & Log Burners, regulations & accreditations
Look for: HETAS · NAPIT · OFTEC. All of these are verifiable by you via the relevant UK trade body's public register.
Browse stoves & log burners across Wales →Skip Hire & Rubbish Removal, regulations & accreditations
Look for: NRW Registered Waste Carrier · Checkatrade. All of these are verifiable by you via the relevant UK trade body's public register.
Browse skip hire & rubbish removal across Wales →Welding & Metalwork, regulations & accreditations
Look for: BABA · TWI. All of these are verifiable by you via the relevant UK trade body's public register.
Browse welding & metalwork across Wales →Structural Engineers, regulations & accreditations
Look for: IStructE · ICE · Engineering Council. All of these are verifiable by you via the relevant UK trade body's public register.
Browse structural engineers across Wales →Worktops, regulations & accreditations
Look for: KBSA · Guild of Master Craftsmen · FMB. All of these are verifiable by you via the relevant UK trade body's public register.
Browse worktops across Wales →Cleaners, regulations & accreditations
Look for: BICSc · NCCA · DBS checked. All of these are verifiable by you via the relevant UK trade body's public register.
Browse cleaners across Wales →Fire Protection, regulations & accreditations
Look for: BAFE · FIA · IFC Certification. All of these are verifiable by you via the relevant UK trade body's public register.
Browse fire protection across Wales →Plant & Digger Hire, regulations & accreditations
Look for: CPA · CPCS · NPORS. All of these are verifiable by you via the relevant UK trade body's public register.
Browse plant & digger hire across Wales →Crane Hire, regulations & accreditations
Look for: CPA · CPCS · ALLMI. All of these are verifiable by you via the relevant UK trade body's public register.
Browse crane hire across Wales →Steel Fabricators, regulations & accreditations
Look for: BCSA · SCCS · BS EN 1090. All of these are verifiable by you via the relevant UK trade body's public register.
Browse steel fabricators across Wales →Dry Lining, regulations & accreditations
Look for: FIS · CSCS. All of these are verifiable by you via the relevant UK trade body's public register.
Browse dry lining across Wales →Cladding, regulations & accreditations
Look for: TrustMark · INCA · FMB. All of these are verifiable by you via the relevant UK trade body's public register.
Browse cladding across Wales →Sign Makers, regulations & accreditations
Look for: BSGA. All of these are verifiable by you via the relevant UK trade body's public register.
Browse sign makers across Wales →Refrigeration Engineers, regulations & accreditations
Look for: REFCOM · Institute of Refrigeration · F-Gas certification. All of these are verifiable by you via the relevant UK trade body's public register.
Browse refrigeration engineers across Wales →Memorial Masons, regulations & accreditations
Look for: BRAMM · NAMM. All of these are verifiable by you via the relevant UK trade body's public register.
Browse memorial masons across Wales →Mechanics & MOT, regulations & accreditations
Look for: IMI · The Motor Ombudsman · Good Garage Scheme. All of these are verifiable by you via the relevant UK trade body's public register.
Browse mechanics & mot across Wales →Tyres, regulations & accreditations
Look for: NTDA · TyreSafe · The Motor Ombudsman. All of these are verifiable by you via the relevant UK trade body's public register.
Browse tyres across Wales →Car Body Repair, regulations & accreditations
Look for: NBRA · BSI Kitemark (BS 10125) · Thatcham Research. All of these are verifiable by you via the relevant UK trade body's public register.
Browse car body repair across Wales →Car Valeting, regulations & accreditations
Look for: PVD · IMI. All of these are verifiable by you via the relevant UK trade body's public register.
Browse car valeting across Wales →Motorcycle Repairs, regulations & accreditations
Look for: IMI · NMDA · The Motor Ombudsman. All of these are verifiable by you via the relevant UK trade body's public register.
Browse motorcycle repairs across Wales →Forestry Contractors, regulations & accreditations
Look for: FISA · Confor · NPTC. All of these are verifiable by you via the relevant UK trade body's public register.
Browse forestry contractors across Wales →Agricultural Contractors, regulations & accreditations
Look for: NAAC · NRoSO · NSTS. All of these are verifiable by you via the relevant UK trade body's public register.
Browse agricultural contractors across Wales →Always verify before hiring. UK trade-body registers are public, Gas Safe (gassaferegister.co.uk), NICEIC (niceic.com), FMB (fmb.org.uk), TrustMark (trustmark.org.uk), NFRC (nfrc.co.uk). We do not check them for you, our checks are Companies House and Google Business Profile, so ask the business for its registration number and look it up on the issuing body's own register.