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…
30 trade types covered, accreditations, certifications, and what to check before hiring
Plumbers, regulations & accreditations
Look for: Gas Safe · APHC · CIPHE. All listed accreditations are verifiable 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 verified plumbers across Wales →Electricians, regulations & accreditations
Look for: NICEIC · NAPIT · Part P. All listed accreditations are verifiable 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 verified electricians across Wales →Builders, regulations & accreditations
Look for: FMB · TrustMark · NHBC. All listed accreditations are verifiable 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 verified builders across Wales →Roofers, regulations & accreditations
Look for: NFRC · TrustMark · CHAS. All listed accreditations are verifiable 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 verified roofers across Wales →Painters & Decorators, regulations & accreditations
Look for: Which? Trusted · TrustATrader · CHAS. All listed accreditations are verifiable via the relevant UK trade body's public register.
Browse verified painters & decorators across Wales →HVAC & Heating, regulations & accreditations
Look for: Gas Safe · CIPHE · OFTEC. All listed accreditations are verifiable 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 verified hvac & heating across Wales →Joiners & Carpenters, regulations & accreditations
Look for: TrustMark · CHAS · FENSA. All listed accreditations are verifiable via the relevant UK trade body's public register.
Browse verified joiners & carpenters across Wales →Plasterers, regulations & accreditations
Look for: CHAS · TrustATrader · Which?. All listed accreditations are verifiable via the relevant UK trade body's public register.
Browse verified plasterers across Wales →Decorators, regulations & accreditations
Look for: TrustATrader · Which? Trusted · CHAS. All listed accreditations are verifiable via the relevant UK trade body's public register.
Browse verified decorators across Wales →Gas Engineers, regulations & accreditations
Look for: Gas Safe · CIPHE · Corgi. All listed accreditations are verifiable 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 verified gas engineers across Wales →Locksmiths, regulations & accreditations
Look for: Master Locksmiths · CHAS · TrustATrader. All listed accreditations are verifiable via the relevant UK trade body's public register.
Browse verified locksmiths across Wales →Landscapers, regulations & accreditations
Look for: CHAS · TrustMark · Checkatrade. All listed accreditations are verifiable via the relevant UK trade body's public register.
Browse verified landscapers across Wales →Plasters & Stucco, regulations & accreditations
Look for: CHAS · TrustATrader · Checkatrade. All listed accreditations are verifiable via the relevant UK trade body's public register.
Browse verified plasters & stucco across Wales →Surveyors, regulations & accreditations
Look for: RICS · CHAS · Checkatrade. All listed accreditations are verifiable via the relevant UK trade body's public register.
Browse verified surveyors across Wales →Architects, regulations & accreditations
Look for: RIBA · CHAS · Checkatrade. All listed accreditations are verifiable via the relevant UK trade body's public register.
Browse verified architects across Wales →Tree Surgeons, regulations & accreditations
Look for: Arboricultural Association · CHAS · TrustATrader. All listed accreditations are verifiable via the relevant UK trade body's public register.
Browse verified tree surgeons across Wales →Drainage & Sewage, regulations & accreditations
Look for: CHAS · Checkatrade · TrustATrader. All listed accreditations are verifiable via the relevant UK trade body's public register.
Browse verified drainage & sewage across Wales →Windows & Doors, regulations & accreditations
Look for: FENSA · CHAS · TrustMark. All listed accreditations are verifiable 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 verified windows & doors across Wales →Kitchens & Bathrooms, regulations & accreditations
Look for: CHAS · TrustMark · Checkatrade. All listed accreditations are verifiable via the relevant UK trade body's public register.
Browse verified kitchens & bathrooms across Wales →Insulation Specialists, regulations & accreditations
Look for: MCS · CHAS · TrustMark. All listed accreditations are verifiable via the relevant UK trade body's public register. Government-funded insulation (ECO, Welsh Warm Homes) requires MCS or TrustMark registered installers.
Browse verified insulation specialists across Wales →Solar Panel Installers, regulations & accreditations
Look for: MCS · CHAS · Checkatrade. All listed accreditations are verifiable via the relevant UK trade body's public register.
Browse verified solar panel installers across Wales →Groundworks, regulations & accreditations
Look for: CHAS · TrustMark · Checkatrade. All listed accreditations are verifiable via the relevant UK trade body's public register.
Browse verified groundworks across Wales →Concrete & Paving, regulations & accreditations
Look for: CHAS · Checkatrade · TrustATrader. All listed accreditations are verifiable via the relevant UK trade body's public register.
Browse verified concrete & paving across Wales →Fencing & Gates, regulations & accreditations
Look for: CHAS · TrustATrader · Checkatrade. All listed accreditations are verifiable via the relevant UK trade body's public register.
Browse verified fencing & gates across Wales →Gutters & Fascia, regulations & accreditations
Look for: CHAS · TrustATrader · Checkatrade. All listed accreditations are verifiable via the relevant UK trade body's public register.
Browse verified gutters & fascia across Wales →Damp Proofing, regulations & accreditations
Look for: CHAS · Checkatrade · TrustATrader. All listed accreditations are verifiable via the relevant UK trade body's public register.
Browse verified damp proofing across Wales →Demolition, regulations & accreditations
Look for: CHAS · Environment Agency · Checkatrade. All listed accreditations are verifiable via the relevant UK trade body's public register.
Browse verified demolition across Wales →Scaffolding, regulations & accreditations
Look for: CHAS · NASC · Checkatrade. All listed accreditations are verifiable via the relevant UK trade body's public register.
Browse verified scaffolding across Wales →Asbestos Removal, regulations & accreditations
Look for: Licensed Contractor · CHAS · HSE Approved. All listed accreditations are verifiable via the relevant UK trade body's public register.
Browse verified asbestos removal across Wales →Appliance Repair, regulations & accreditations
Look for: Gas Safe (if applicable) · CHAS · Checkatrade. All listed accreditations are verifiable via the relevant UK trade body's public register.
Browse verified appliance repair 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). The accreditation badges shown on besttrades.wales listings have been cross-checked against these public registers.