Carbon Futures
Based in Glasgow (also Edinburgh) · Covers Throughout the UK; projects concentrated in Scotland Accreditation stated by provider: Approved Certifier of Design (Section 6 – Energy)Own websiteUK-wide
03 · Existing buildings & works · PAS 2035
Retrofit assessment in Scotland
25 providers offering retrofit assessment in or across Scotland, including national firms. The rules in Scotland differ from England’s, so see the notes below.
The rules in Scotland
ECO4 uses PAS 2035 and covers Scotland until 31 December 2026. Home Energy Scotland grants and loans have their own rules, such as TrustMark or MCS installers and EPCs before and after the work, so check what your scheme asks for.
25 retrofit assessors for Scotland
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Based in or covering Scotland (3)
CPH Retrofit
Based in Hebburn, South Tyneside · Covers National clients from offices in Tyneside, Norfolk, Yorkshire, London and Livingston Accreditation stated by provider: TrustMark, ECMK, Stroma, CHASOwn website
Energy Certificates Scotland
Based in Glasgow (also Edinburgh) · Covers Glasgow, Edinburgh, Ayrshire, Paisley, Renfrewshire and surrounding towns Accreditation stated by provider: Stroma Certification Retrofit Assessor scheme, Gas SafeOwn website
National providers (check they cover your area) (22)
2035 Assessments
Based in Higham, Bury St Edmunds, Suffolk · Covers East of England and throughout the UK Accreditation stated by provider: TrustMark, Elmhurst, ECMK, RICS, CIOB, CIAT, MCSOwn websiteUK-wide
AES Sustainability Consultants
Based in Tiverton, Devon · Covers England, Scotland and Wales Accreditation stated by provider: ATTMA, SITMA, Elmhurst, ECMK, TrustMark, BREEAM, PassivhausOwn websiteUK-wide
Base Energy
Based in Staines-upon-Thames, Surrey and Bootle, Merseyside · Covers UK-wide, including London Accreditation stated by provider: Elmhurst, CIBSE, TrustMark, BREEAMOwn websiteUK-wide
Building Energy Experts
Based in Bristol · Covers Nationwide Accreditation stated by provider: Elmhurst, ATTMA, TrustMark, Retrofit Academy (Corporate Member), Retrofit Academy Corporate Member, AECBOwn websiteUK-wide
Coactivation
Based in Derby · Covers Midlands locally, UK-wide for larger schemes Accreditation stated by provider: TrustMark, ElmhurstOwn websiteUK-wide
Compliant Retrofits Ltd
Based in Manchester · Covers UK-wide, including London Accreditation stated by provider: TrustMarkOwn websiteUK-wide
Crawford & Co Surveyors
Based in Beeston, Nottinghamshire · Covers Nationwide, across the UK Accreditation stated by provider: RICS, CIOB, Elmhurst, TrustMarkOwn websiteUK-wide
Cyd Innovation Ltd
Based in Holywell, Flintshire · Covers Across the UK, from a base in North Wales Accreditation stated by provider: TrustMark, RICS regulated, B CorpOwn websiteUK-wide
Energy Counsel
Based in Manchester, Greater Manchester · Covers Manchester, the North West and nationwide Accreditation stated by provider: CIBSE, BPEC, iATS, SITMA, BREEAM, AECB, ConstructionlineOwn websiteUK-wide
EnergyWise Services
Based in Belfast, Northern Ireland · Covers UK-wide (remote delivery available) Accreditation not yet checkedOwn websiteUK-wide
EPC Assess Ltd
Based in Midlands · Covers Birmingham, Wolverhampton, Coventry and UK-wide Accreditation not yet checkedOwn websiteUK-wide
kW Energy Consultants Ltd
Based in Ruddington, Nottingham · Covers East Midlands and nationwide Accreditation not yet checkedOwn websiteUK-wide
Litegreen
Based in Wrexham · Covers North Wales and the whole UK Accreditation stated by provider: TrustMark, Stroma, ECMKOwn websiteUK-wide
MES Building Solutions
Based in Newark, Nottinghamshire · Covers Throughout the UK (offices in Newark, London and Birmingham) Accreditation stated by provider: ATTMA, Elmhurst, AECB, TrustMarkOwn websiteUK-wide
Midland EPC
Based in Coventry · Covers Coventry and the Midlands, plus UK-wide Accreditation not yet checkedOwn websiteUK-wide
Purple Energy Solutions
Based in UK (several offices) · Covers Nationwide Accreditation stated by provider: ATTMA, UKASOwn websiteUK-wide
SEES
Based in Durley, Southampton, Hampshire · Covers UK-wide Accreditation stated by provider: Elmhurst, ATTMA, BREEAM licensed assessor company, Stroma certifiedOwn websiteUK-wide
StepSoft Coordination Services
Based in Oldham, Greater Manchester · Covers All ten Greater Manchester boroughs; also works across the UK Accreditation stated by provider: TrustMark, Elmhurst, ECMK, PAS 2035:2023Own websiteUK-wide
UK Building Compliance
Based in Hinckley, Leicestershire · Covers UK-wide (England, Wales, Scotland and Northern Ireland) Accreditation stated by provider: ATTMA, Elmhurst, SITMA, BPEC, UKASOwn websiteUK-wide
UK Building Survey and Snagging Ltd
Based in Manchester · Covers UK-wide Accreditation stated by provider: Surveyors state RICS, CIOB and RPSA membershipOwn websiteUK-wide
UK Energy Assessors
Based in Midlands · Covers East and West Midlands (nationwide network) Accreditation not yet checkedOwn websiteUK-wide
WRAP Retrofit
Based in Teddington, London · Covers UK-wide Accreditation stated by provider: RIBAOwn websiteUK-wide
Retrofit assessment in other regions
London (21) South East (12) East of England (9) South West (7) West Midlands (8) East Midlands (10) Yorkshire and the Humber (6) North West (15) North East (4) Wales (10)
Getting signed off in Scotland
In Scotland, you need a building warrant from the council before work starts, and design evidence such as SAP and overheating assessments goes in with the application. At the end you submit a completion certificate with your test reports. The council then has 14 days to accept it, and you can’t move into a new building until it does, unless the council allows temporary occupation.