PAS 2035 Retrofit Software

From assessment
to design, automated.

RetroMindLab reads your retrofit assessment data and generates compliant design packages — insulation strategies, ventilation plans, heating configurations, and full quantity schedules — in minutes, not days.

Get Early Access
01 Retrofit Assessment (PAS 2035)
PDFRdSAP XML
↓
02 EPC + Property Data
TrustMark API
↓
03 Product Specifications
InsulationHeatingPV
↓
04 Scenario Selection
Client Chooses
↓
05 Design Package Output
PDF Report
How It Works

Three steps from data to deliverable

Step 01

Upload your documents

Upload the retrofit assessment, EPC, floor plan, and product specifications. The system reads and parses all data automatically — no manual entry required.

Step 02

Select a scenario

Review the generated improvement scenarios — IWI + ASHP, RIRI + Boiler + PV, and more — each mapped to the property's current EPC and target EPR rating.

Step 03

Receive your design package

Download a complete, locked PDF design package: retrofit design, ventilation strategy, thermal bridge assessment, historic impact check, and quantity chart.

Inputs & Outputs

Everything in, everything out

Inputs

Retrofit AssessmentPAS 2035 compliant — uploaded as PDF or via TrustMark API
EPC & Property DataCurrent energy rating, construction type, property age
Floor PlanUsed for heat demand calculations and insulation area estimates
Product SpecificationsInsulation materials, boiler make/model/kW, solar panel specs, ventilation units
Ventilation SurveyExisting provision, airtightness test data
Photographic EvidenceGeotagged, timestamped site photos
→

Outputs

Retrofit DesignLI, IWI, EWI, RIRI insulation designs with specification sheets
Ventilation StrategyPart F/J compliant, with airtightness and heat demand calculations
Thermal Bridge AssessmentRisk identification and treatment recommendations
Historic Impact AssessmentFor listed or conservation area properties
Quantity ChartRadiators, fan coils, inverters, batteries, emitter schedule
Locked PDF PackageTamper-proof, ready for TrustMark lodgement
Improvement Scenarios

Multiple pathways, one property

The system generates multiple PAS 2035 compliant improvement scenarios based on the existing EPC and target EPR. Clients choose the pathway that fits their budget and goals.

EPC D → EPR B

Full Fabric + Renewable Heat

IWI Loft Insulation ASHP PV
EPC E → EPR C

Fabric First + Boiler Upgrade

RIRI IWI Boiler PV
EPC D → EPR C

Insulation Only Package

Loft Insulation IWI EWI
EPC F → EPR D

Cavity + Room-in-Roof

RIRI Loft Insulation Boiler
Integrations

Built on the UK retrofit infrastructure

RetroMindLab connects directly to the platforms and standards that retrofit professionals already use — no duplicate data entry, no manual exports.

TrustMark RIAPI
PAS 2035:2023
RdSAP XML
MCS Database

We're building it now.

RetroMindLab is currently in active development. This page will be updated as new features are confirmed and the platform approaches launch. If you are a retrofit designer or coordinator interested in early access, leave your email below.

This page is being updated regularly

Be the first to know when RetroMindLab opens for beta access. No spam — a single email when we're ready.

For retrofit designers and coordinators based in the UK.