RetrofitReady : DEA

Webrich Software

In-app purchases

About this app

Studying for your Domestic Energy Assessor qualification? RetrofitReady: DEA is an independent study companion and on-site toolkit for trainee and working domestic energy assessors.

Practise with 383 exam-style questions, run the numbers with six field calculators, and keep your CPD in order — all in one app that works fully offline.

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383 PRACTICE QUESTIONS
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Every question is written by our team to reflect the topics a domestic energy assessor is expected to know, and comes with a clear explanation and, where useful, a diagram.

• Scenario and case-study questions that mirror real assessments
• Multi-select "mark two/three answers" questions
• Full mock test to simulate the real thing
• Flash cards for quick revision
• Sort and filter by topic, choose how many questions per session
• Track your progress and target your weak areas

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6 FIELD CALCULATORS
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• Ventilation — background and extract ventilation rates for existing dwellings
• U-value — multi-layer thermal element build-up calculator
• Insulation thickness — board thickness needed to hit a target U-value
• Heat loss / HTC — whole-dwelling fabric performance
• Condensation risk — interstitial condensation screening using the Glaser method
• Cost / carbon / payback — fuel savings, carbon savings and payback periods

Each calculator shows its inputs and assumptions so you can check the working yourself.

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QUICK REFERENCE
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Tap-to-find answers in the field:
• Energy rating bands (A–G)
• U-value guidance figures for common thermal elements
• Indicative fuel unit prices and CO₂ factors
• Damp and moisture-risk paths — rising, penetrating, interstitial and surface condensation
• Assessment and survey terminology
• Acronyms and glossary

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TOOLBOX — CPD & FIELD TOOLS
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• CPD Log — record activities against your annual target, with automatic logging as you study, dashboard charts and a professional PDF export for your portfolio
• Site Survey — capture a dwelling survey on site
• Ventilation Assessment — record and check ventilation provision
• Assessment Register — keep a log of every job you assess
• Qualifications — track your certificates and insurance renewals
• Exam Countdown — see the days remaining to your assessment

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WORKS THE WAY YOU DO
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• Works fully offline
• Regular content updates
• No clutter — a clean, fast interface

Free to try, with a subscription to unlock the full question bank, all calculators and the complete quick reference library.

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DISCLAIMER & GOVERNMENT INFORMATION SOURCES
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RetrofitReady: DEA is an independent educational tool published by Webrich Software.

This app is NOT affiliated with, endorsed by, approved by, or acting on behalf of any government entity, scheme provider, certification body, or awarding organisation. It does not provide official energy certificates, official surveys, or government services.

For official UK government guidance, energy performance standards, and methodology rules regarding Domestic Energy Assessments, please consult official government sources:
• UK Government Energy Performance Certificates (EPC) guidance: https://www.gov.uk/buy-sell-your-home/energy-performance-certificates
• Standard Assessment Procedure (SAP/RdSAP) methodology: https://www.gov.uk/guidance/standard-assessment-procedure
• Building Regulations Approved Documents (Part L & F): https://www.gov.uk/government/collections/approved-documents

All study content and tools are for learning and revision purposes only and do not constitute legal or professional advice. Always verify survey details against published scheme standards and official regulation updates.

Privacy policy: https://www.webrichsoftware.com/privacy.html

What’s new

• Removed the "Sort Questions By Section" option from Settings for a simpler setup
• Fixed the practice timer: setting it to "Off" now disables the countdown instead of skipping straight to the next question
• "More Apps" now shows our current, up-to-date app list
Thanks for using Retrofit DEA. Works fully offline.