If you’re a landlord in Lancashire, you’ll already know that every rental property must have an Energy Performance Certificate (EPC). But many local landlords tell us they aren’t always sure what the certificate really means – or how useful it is when planning improvements.
In this blog, we’ll explain what an EPC covers, the limitations you should be aware of, and how you can use it as a starting point rather than the full story.
What an EPC Shows You
An EPC is like a report card for a property’s energy efficiency. It includes:
- Energy Efficiency Rating – a band from A (very efficient) to G (very inefficient).
- Environmental Impact Rating – an estimate of the home’s carbon emissions.
- Estimated running costs – how much it should cost to heat and power the property each year.
- Recommendations – suggested improvements (for example, loft insulation or a new boiler) with estimated savings.
For landlords, the most important part is the overall banding. This is what the Minimum Energy Efficiency Standards (MEES) are based on. At present, properties must be at least EPC band E to be rented out, unless an exemption applies. You can read more about MEES here: Minimum Energy Efficiency Standards (MEES): What Lancashire Landlords Need to Know in 2025
The Limitations of EPCs
While EPCs are a legal requirement, they do have some important limitations:
- They’re based on assumptions
Assessors use standardised software. The methodology assumes a typical household’s energy use, not your tenants’ actual habits. For example, if tenants keep the heating on 24/7, their bills may be far higher than the EPC suggests. - They don’t always reflect recent changes
If you’ve improved the property since the last EPC – maybe upgraded the boiler or added insulation – these won’t show up until you get a new certificate. - They can overlook local housing quirks
Lancashire has a large number of Victorian and Edwardian terraces, solid-walled cottages, and converted farmhouses. EPCs often underestimate heat loss in these types of homes, and recommended measures (like cavity wall insulation) that may not even be possible. - They don’t measure comfort or condition
An EPC won’t tell you if the house suffers from condensation, draughts, or damp – issues that matter a great deal to tenants’ wellbeing. - They don’t guarantee actual savings
The “potential savings” are modelled estimates. In reality, fuel tariffs, property maintenance, and occupant behaviour make a big difference.
Why EPCs Still Matter for Lancashire Landlords
Despite the limitations, EPCs play an important role:
- Legal compliance – an EPC is a legal requirement for letting a property. Without it, you risk fines of up to £5,000.
- Tenant attraction – With energy prices still high, tenants increasingly ask about running costs. A better EPC rating can make your property stand out.
- Planning tool – EPC recommendations provide a useful starting point for upgrades, even if they don’t tell the whole story.
- Future-proofing – the government has proposed raising the bar to EPC band C for rental properties in future, so many landlords are already thinking ahead.
How to Make the Most of Your EPC
- Check the age of your EPC – certificates are valid for 10 years, but older ones may not reflect your property as it stands today. If your EPC has expired and you’re looking to update, we can point you in the right direction.
- Cross-check with real life – if your property feels colder, damper, or more expensive to run than the EPC suggests, consider getting a second opinion through an energy survey.
- Use it as a roadmap, not a rulebook – the recommendations list is a starting point, but not always realistic for Lancashire’s older properties. Seek impartial advice from our team at Greener Homes in Lancashire before committing to work.
- Update it after improvements – if you’ve upgraded heating, windows, or insulation, a fresh EPC will prove compliance and can enhance your property’s appeal to prospective tenants.
- Start planning now – if your property is at band E or D, it’s worth looking at cost-effective improvements and funding opportunities that could move you up the scale.
You can find your EPC here: Find an energy certificate – GOV.UK
Free Local Support for Landlords
At Greener Homes in Lancashire, we provide free, impartial advice to help landlords across the county make sense of their EPCs and plan improvements that benefit both their properties and their tenants.
If you’re unsure what your EPC really means, or want help working out the most effective upgrades, get in touch – we’re here to support landlords in Lancashire every step of the way.