Private landlords have a clear deadline: under the Government’s Warm Homes Plan, rented homes must reach an EPC rating of C by October 2030. Here is what the rules say, what they could cost you, and which upgrades make the biggest difference.
What are the new rules?
Privately rented homes will need an Energy Performance Certificate (EPC) rating of C or above by October 2030, unless an exemption applies. The earlier proposal to apply the rules to new tenancies from 2028 has been dropped, so there is one deadline for all rented homes.
If your property already has a valid EPC of C or above before October 2029, it counts as compliant until that certificate expires.
How much will you have to spend?
There is a cost cap of £10,000 per property. You can choose which improvements to make, and work carried out from October 2025 counts towards the cap. If £10,000 would be 10% or more of the property’s value, a low-value property exemption applies.
Which upgrades improve an EPC rating?
The most cost-effective improvements are usually:
- Cavity wall insulation: one of the cheapest ways to cut heat loss and gain EPC points in homes built with cavity walls.
- Loft insulation: topping up to the recommended depth is quick, low-cost and effective.
- Solar panels: generating your own electricity can add significant points to an EPC.
- External or internal wall insulation: for solid-wall properties that cannot have cavity wall insulation.
- Heat pumps: replacing an old boiler, with up to £9,000 available through the Boiler Upgrade Scheme.
The right combination depends on your property, which is why it pays to start with an assessment.
Start with an EPC and an improvement plan
Before spending anything, find out where your property stands. An up-to-date EPC shows your current rating and which improvements are recommended. From there, you can plan the most cost-effective route to C and stay within the £10,000 cap.
Don’t leave it until 2030
With thousands of landlords facing the same deadline, installers and assessors will get busier as 2030 approaches. Acting early lets you plan work between tenancies, spread costs and take advantage of current incentives, such as 0% VAT on solar panels and batteries until 31 March 2027.
How Eco Systems Group can help
Eco Systems Group has been improving homes since 2012 and has installed over 15,000 insulation and renewable measures. We provide EPCs, retrofit assessments and the improvements themselves, so you can work with one company from assessment to installation.
- CIGA-registered cavity wall insulation with a 25-year guarantee
- MCS-certified solar, battery and heat pump installation
- Loft, external and internal wall insulation
- Covering Essex, London, Kent, Surrey and Hertfordshire
Call 0203 411 4885 or email info@ecosystemsgroup.co.uk to book an EPC or a free survey.
