Changeworks: Retrofit assessment

Changeworks is based in Edinburgh, offering retrofit assessment across Scotland.

Services

Service	Regulation	Price
Retrofit assessment	PAS 2035	Ask for a quote

Services listed on Signed Off. The provider may offer others.

About

Edinburgh-based environmental charity whose EcoCosi service gives homeowners a whole-house retrofit assessment and a written home report, then coordinates vetted installers and checks the finished work. Launched in Edinburgh and being extended across Scotland.

Details taken from the provider’s own website on 18 October 2026.

What we’ve checked, and what we haven’t

AccreditationWe haven’t found an accreditation in their listing, and haven’t checked any registers for this firm yet.

InsuranceNot yet checked. Ask to see professional indemnity insurance before you book.

Areas covered

Covers Edinburgh, extending across Scotland

Scotland

About this report

Retrofit assessment. A retrofit assessment is the survey that starts any energy-efficiency project run under PAS 2035, the standard behind government-funded schemes and TrustMark-registered work.

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Retrofit assessment in Scotland Retrofit assessment across the UK