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Advisory improvement calculator

Energy Improvement Return On Investment Calculator

Estimate whether an energy efficiency improvement may be financially worthwhile by comparing cost, annual saving, payback, lifetime net saving and return on investment.

This calculator provides general guidance only. Actual savings depend on property condition, energy prices, usage patterns, installation quality and official Energy Performance Certificate assessment results.

Calculate improvement return

Use simple estimates to create a plain-English view of payback, savings and whether the improvement looks financially attractive.

Start with the property

Need a decision-ready report?

Use the calculator for a first view, then request a paid report where you need clearer evidence, priorities or a phased plan.

Service journey

Step 1

Assessment

Step 2

Improvement Plan

Step 3

Supply & Install

Step 4

New EPC

Make My Home Energy Efficient can review EPCs, model improvement scenarios, advise on the best route to EPC C, and arrange supply and installation of suitable measures through approved installers.

EPC Assessment

Accredited Energy Performance Certificate assessment for sale, letting, compliance or improvement planning.

Desktop EPC Review

Remote review of your existing EPC to identify likely rating drivers, recommendation gaps and practical next steps.

EPC C Improvement Plan

Property-specific roadmap showing the likely route to EPC C, priority measures, costs, evidence needs and reassessment plan.

Portfolio EPC Review

Review multiple properties to prioritise EPC C planning, improvement budgets, compliance readiness and next actions.

Supply & Install Improvement Measures

Arrange suitable improvement measures through approved installers after the EPC route has been reviewed.

Next step

Need help deciding if the improvement is worth it?

Use the calculator as a starting point, then request an Energy Performance Certificate Insight Review or Property Efficiency Roadmap before committing spend.

Book Energy Performance Certificate AssessmentRun Free Energy Performance Certificate Opportunity ScoreRequest Property Energy StoryRequest Energy Performance Certificate Insight ReviewBuild My Property Efficiency Roadmap