Independent Domestic Energy Performance Certificates for landlords, letting agents, homeowners and housing providers across Plymouth, Devon, Cornwall and the wider South West.
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Not sure which improvements will actually improve your EPC rating? Before you spend thousands on new windows or a new heating system, let us show you what each change is likely to do to your score. It's the easiest way to avoid expensive mistakes and find the most cost-effective route to the rating you need.
EPC ratings are calculated using the government's Standard Assessment Procedure, known as SAP (or Reduced Data SAP for existing homes). SAP re-modelling takes the data from your property's assessment and tests "what if" scenarios: what if you added loft insulation, upgraded the heating controls, fitted solar panels, or did all three?
The result is a clear picture of how each improvement, or combination of improvements, is likely to affect your rating. You can then decide what to do based on real numbers rather than guesswork.
Working towards the EPC C requirement for private rented homes by October 2030.
Planning upgrades and wanting to prioritise the ones that matter most.
Weighing up what a property would need to reach a target rating.
Planning improvement programmes across their stock.
We start with your existing EPC data, or carry out a new assessment if your certificate is out of date.
We test the improvements that make sense for your property, individually and in combination.
We explain the results in plain English, including which measures give you the biggest improvement for your money.
Once the work is done, we can carry out a new EPC so your improved rating is officially on record.
Grant funding for energy improvements changes often, and it can be hard to know what's still available. We'll help you understand which schemes may apply to your property and point you in the right direction. A valid EPC is often the first thing a funding scheme will ask for.
The main government funding now comes through the Warm Homes Plan. Locally, this includes Warm Homes: Local Grant funding managed by Plymouth City Council, Devon County Council and Cornwall Council for eligible households on lower incomes. The Boiler Upgrade Scheme also offers grants towards heat pumps for homeowners and landlords in England and Wales.
The Great British Insulation Scheme (GBIS) closed on 31 March 2026. ECO4 has been extended only so that existing projects can be finished by 31 December 2026, and the government has confirmed there won't be a replacement supplier scheme. If someone offers you "free ECO4 insulation" today, it's worth checking the details carefully.
No. An EPC records your property as it is today. SAP re-modelling uses that information to show how the rating is likely to change if you make certain improvements.
It's a projection based on the assessment data, so it's a reliable guide rather than a guarantee. Your final rating is confirmed by a new EPC once the work is complete.
If you want your new rating on record, yes. This is especially important for landlords who need to show they meet the minimum standard.
