PAS 2035:2019 Retrofitting Dwellings for Improved Energy Efficiency
PAS 2035:2019 was sponsored by the UK Government's Department for Business, Energy and Industrial Strategy (BEIS). This is the key document in a framework of new and existing standards on how to conduct effective energy retrofits of existing buildings, it covers how to access dwellings for retrofit, identify improvement options, design and specify Energy Efficiency Measures (EEM) and monitor retrofit projects.
The standard drives the 'whole house approach' including the 'fabric first' methodology. It defines the qualifications and responsibilities of individual retrofit roles and respective activities required prior and post EEM installation. It also includes a risk assessment process that builds incrementally robust requirements depending on what requirement path (A, B, or C) the retrofit project is assessed to fall within.
It is not possible to be certified to PAS 2035:2019 in the way that it is with PAS:2030. In the case of PAS 2035:2019, TrustMark will the deliver of the compliance monitoring function rather than the certification bodies. TrustMark Registered Businesses carrying out work within its scope are required to be compliant with its requirements; subject to the transition arrangements outlined below.
PAS 2035 is inextricably linked to PAS 2030:2019, which is the new industry specification to replace PAS 2030:2017 and is the standard to which all energy efficiency installers must be certificated and compliant.
The standards framework has been revised in response to industry learning on good practice and the recommendations of the Each Home Counts review. As such the new specifications PAS 2035:2019 and PAS 2030:2019 came into effect from 30th June 2019.
The specifications are available from the BSI Shop.
PAS 2035 and TrustMark
TrustMark has incorporated the new specification into Annex B of our Framework Operating Requirements so that going forward, where a consumer engages with a TrustMark Registered Business in relation to the installation of energy efficiency measures, they can have confidence that the work is delivered to improved, recognised specifications and is underpinned by a compliance regime.
TrustMark, the Energy Company Obligation (ECO) and PAS 2035
The Electricity and Gas (Energy Company Obligation) (Amendment) Order 2019 came into force on 1st January 2020 and includes a requirement for ECO measures to be installed by, or under the responsibility of, a person who is registered with TrustMark for the measure and for the work to be lodged into the TrustMark Data Warehouse.
The requirement for TrustMark registration and the incorporation of PAS 2035 into our Framework is the vehicle to drive the new standards in ECO.
Further information can be found here.
It is recognised that some transitional arrangements are required to support the industry uptake of the new specifications. The transitional arrangements apply to TrustMark Scheme Providers and TrustMark Registered Businesses involved in the delivery of energy efficiency measures under ECO and those delivered outside of the scope of ECO but where compliance is claimed with these specifications.
The transitional arrangements are as agreed with:
- The British Standards Institution (BSI)
- The Department for Business, Energy and Industrial Strategy (BEIS)
- The Office of Gas and Electricity Markets (Ofgem)
- The United Kingdom Accreditation Service (UKAS)
It is important to understand that when a PAS 2030:2017 certified business becomes certified to PAS 2030:2019 the requirements of PAS 2035:2019 commence. This includes the requirement for a project to be overseen and lodged into the TrustMark Data Warehouse by a qualified and TrustMark registered Retrofit Coordinator.
PAS 2035:2019 Retrofit Roles
PAS 2035 specifies the retrofit roles as follows:
- Retrofit Advisor
- Retrofit Assessor
- Retrofit Coordinator
- Retrofit Designer
- Retrofit Evaluator
Further information on the retrofit roles and qualifications can be found here.
Interested in becoming a TrustMark registered Retrofit Assessor and/or Retrofit Coordinator?
To find out more about the TrustMark Schemes you can become registered with, please visit our 'How To Join' page. Use the 'Select Trade' function to find a Scheme Provider that can support your application.
If you would like to learn more about why PAS 2035 was created or more about how it works, you may find the following external links useful:
This page is under regular review and will be updated frequently. Last updated 14 January 2020