The revised PAS 2030 was officially published on 28 September 2023, beginning an 18-month transition period that ends on 30 March 20251. From 31 March 2025, PAS 2030:2023 becomes mandatory, replacing the 2019 edition1.
PAS 2030:2023 is described as the recognised industry specification for contractors and installers delivering energy efficiency measures in existing dwellings under government-backed initiatives1. It sits alongside PAS 2035, which covers planning and management of projects, including design, risk and evaluation, while PAS 2030 covers the installation phase1. Certification bodies must transition their schemes within six months of publication1.
The update followed recommendations from the BSI Retrofit Standards Task Group, with a public consultation in early 2023 and input from TrustMark, the Department for Energy Security and Net Zero and the Scottish Government1. Reported changes include an emphasis on whole-house retrofits rather than individual measures, references to the BEIS Retrofit Technical Guides, strengthened requirements for airtightness strategies including testing to BS40101, moisture management guidance aligned with BS5250, mandatory pre-installation building inspections for insulation measures or a recognised industry quality assurance process, more detailed guidance for retrofits involving multiple dwellings, enhanced guidance on ventilation system design, and provision for distressed heating systems to be replaced retrospectively under PAS 2035 compliance1.
PAS 2030 covers three primary types of installation1:
| Category | Examples given |
|---|---|
| Building Fabric Measures | Loft, cavity wall, roof and floor insulation; energy-efficient glazing and doors |
| Building Services Mechanical | Modern boilers, underfloor heating, hybrid solutions |
| Building Services Electrical | Advanced lighting systems, smart controls |
"No, PAS 2030 certification is a mandatory requirement for businesses looking to deliver energy efficiency measures under government-funded schemes like ECO4."
Certification is also a prerequisite for TrustMark registration, which the guide describes as a prerequisite of all government-funded schemes1. Projects already underway under PAS 2030:2019 can continue until completion during the transition period1.
Why it matters for households
PAS 2030 is the specification that sits behind the paperwork a householder rarely sees: it governs how insulation, heating and electrical measures are installed in existing homes under government-backed schemes, and what evidence the installer must hold1. Because certification is a condition of taking part in schemes such as ECO4 and the Warm Homes Programme, and of TrustMark registration, the standard shapes which businesses can carry out funded work on a home at all1. The 2023 edition's reported changes bear directly on the fabric of a dwelling: airtightness testing, moisture management, ventilation design and mandatory pre-installation inspection for insulation measures are the elements that determine whether a retrofit performs as intended and whether the home remains healthy to live in1. For a household weighing up work on the building envelope, the standard is also the mechanism by which a whole-house approach, rather than a single measure, is expected to be delivered1. The Future Homes Standard sets a separate trajectory for new-build emissions, covered in our guide to how much lower carbon emissions will be in new homes; PAS 2030 applies to existing dwellings. Wider policy context sits in the regulation and policy section.
What happens next
The transition period ends on 30 March 2025, with PAS 2030:2023 mandatory from 31 March 20251. Certification bodies were required to transition their schemes within six months of the 28 September 2023 publication1. The guide states that future government retrofit schemes will require compliance with the 2023 standards1. No further dates have been reported.
Sources1 cited
- PAS 2030 Guide - Retrofit Academy, retrofitacademy.org