PAS 2035 Retrofit Assessment & Coordination
Fully certified Level 4 Retrofit Assessors delivering TrustMark-compliant Whole House Retrofit Assessments for Social Housing Decarbonisation Fund (SHDF), ECO4, and Warm Homes projects.
TrustMark-Lodged Whole House Retrofit Assessments
Under UK government funding regulations (including the Social Housing Decarbonisation Fund / Warm Homes: Social Housing Fund, ECO4, and the Great British Insulation Scheme), all energy efficiency interventions in domestic housing must strictly comply with PAS 2035:2019 / PAS 2035:2023 standards.
Strata’s retrofit team includes accredited Level 3 Retrofit Assessors (holding formal qualification certificates in Retrofit Assessment and SAP/RdSAP energy modelling), providing the technical baseline required by your appointed Retrofit Coordinator and principal contractor.
Dwelling Assessment
Full comprehensive property inspection, including structural condition, damp and moisture diagnostics, air permeability indications, and measured floor plans.
Ventilation Assessment
Evaluation of existing background ventilation, mechanical extract fans, trickle vents, and undercut doors in accordance with PAS 2035 / Approved Document F.
Occupancy & Context
Resident energy use interview, heating pattern recording, and special vulnerability notes to inform the Retrofit Coordinator's design package.
Why Subcontract Your Retrofit Assessments to Strata?
- ✓TrustMark Lodgement Ready: Every assessment file is formatted and checked for seamless upload into the TrustMark Data Warehouse.
- ✓Combined Survey Option: We can combine PAS 2035 with Stock Condition and EICR inspections on the same visit to minimise access visits.
- ✓Multi-Borough London Reach: Deep coverage across North London, Greater London, and South East framework schemes.
Frequently Asked Questions
Are you a Retrofit Coordinator?
No — Strata delivers Level 3 Retrofit Assessments, providing the technical baseline data your appointed Retrofit Coordinator uses to design the improvement package. We work alongside your Coordinator and principal contractor rather than replacing that role.
What funding schemes does this support?
Our PAS 2035 assessments are lodged in a format ready for SHDF/Warm Homes: Social Housing Fund, ECO4, and Great British Insulation Scheme funding applications.
Can this be combined with a stock condition survey?
Yes — PAS 2035, stock condition, and EICR inspections can be combined into a single property visit to minimise resident access disruption.
Certified & Regulated Compliance
Fully Accredited Across UK Statutory & Funding Frameworks
PAS 2035 Decarbonisation & SHDF 
TrustMark Quality & Standards 
Elmhurst Energy Energy Performance 
ECMK RdSAP & Commercial EPCs 
Quidos Building Energy Performance 
Sterling Energy Assessment 
NICEIC Electrical Safety & Compliance Discuss Your Programme Scope or Request a Specification Quotation
Direct consultation with our qualified surveying leadership. We review schedules and respond within 4 business hours.