Frequently Asked Questions

The Warm Homes Plan is the UK Government's £15 billion scheme to upgrade 5 million homes to EPC C or above. It's the successor to ECO4 and covers a wide range of energy improvements including insulation, heat pumps, solar PV, heating controls, and more. To access it, contact Cucumber Eco for a free assessment, we'll confirm your eligibility and manage the entire application and installation process.

Under current Minimum Energy Efficiency Standards (MEES), rental properties must achieve a minimum EPC E. The Government's target is for all privately rented homes to reach EPC C by 2030. From October 2026, the single A-G EPC rating will be joined by four additional metrics under the New Home Energy Model (Home Energy Model). Landlords are strongly advised to act now, a certificate issued under the current SAP system is valid for ten years, giving compliance until 2036.

Yes. Landlords with tenants on eligible means-tested benefits (such as Universal Credit, Housing Benefit, or Pension Credit Guarantee) can access funding through the Warm Homes Plan. This can cover insulation, heating upgrades, heat pumps, and more. We work with a network of accredited installers to deliver these improvements. Landlords with properties in EPC bands D-G are prioritised.

Tenants whose households receive one or more qualifying benefits are typically eligible. These include Universal Credit, Housing Benefit (means-tested), ESA (income-based), JSA (income-based), Pension Credit Guarantee, and Income Support. Your landlord's consent is required for physical improvements to the property. Contact us and we'll check your specific eligibility.

The most cost-effective ways to improve an EPC rating are: loft insulation, cavity wall insulation, internal wall insulation (for solid wall properties), upgrading to a more efficient heating system, adding smart controls, and installing solar PV. We carry out a full assessment of your property and recommend the measures that will make the greatest difference to your rating and energy bills.

Yes. Under the Energy Act 2011, landlords require their tenant's written consent before carrying out energy efficiency improvements to a rented property. In practice, most tenants are happy to agree as the works benefit them directly through lower energy bills and a warmer home. We can assist with tenant communication as part of our service.

Yes, Houses in Multiple Occupation (HMOs) can be eligible for energy grants and improvements under the Warm Homes Plan, subject to the property meeting EPC eligibility criteria and at least one tenant being in receipt of qualifying benefits. The landlord's full consent is required, and the property must not be excluded for other reasons (e.g. listed building restrictions). Contact us to discuss your HMO portfolio.

The average UK home with solar PV saves between £400 and £600 per year on electricity bills, depending on the system size, roof orientation, and usage patterns. Adding a battery storage system increases savings by allowing you to store surplus energy generated during the day for use in the evening. Solar PV can reduce your grid electricity reliance by 30–50%.

Absolutely. Insulation is one of the most cost-effective energy improvements available. Loft insulation saves £300–400 per year on average. Cavity wall insulation saves £250–350 per year. Internal wall insulation for solid wall properties saves £400–600 per year. These measures also significantly improve comfort, reduce condensation and damp, and boost EPC ratings. Many properties are eligible for insulation at no cost through the Warm Homes Plan.

Under MEES, landlords cannot legally let a property with an EPC rating below E. Non-compliance can result in fines of up to £30,000 per property and the property cannot be legally rented until it meets the minimum standard. Local authorities are responsible for enforcement. With the 2030 target of EPC C approaching, landlords who delay risk larger costs and potential gaps in rental income while works are completed.

Timescales vary depending on the measures required and current demand, but typically: the initial assessment takes 1–2 working days; grant approval and documentation 2–4 weeks; installation scheduling 2–6 weeks depending on installer availability and property complexity. We keep you updated throughout and handle all chasing of documents and approvals.

Yes. Homeowners on qualifying benefits are eligible for the same range of Warm Homes Plan improvements as tenants. Owner-occupiers on low incomes can also access funding even without receiving specific benefits, depending on the scheme. We assess your full eligibility picture before recommending the best route forward.

Yes, research consistently shows that higher EPC-rated properties command premium prices and achieve faster sales. A property upgraded from EPC D to C or above can see a value increase of 3–8%, depending on location and market conditions. For landlords, it also reduces void periods as tenants increasingly seek energy-efficient homes to keep bills down.

Our property assessment covers: current EPC rating and potential rating, heating system type and efficiency, insulation levels (loft, walls, floor), glazing quality, draught proofing, and ventilation. We then identify which measures will achieve the greatest improvement and which grants or finance options apply. The assessment is completely free and carries no obligation.

Simply contact us via our website contact form, call us directly, or send us a message. We'll arrange a free initial assessment, confirm your eligibility, and present you with a clear plan covering what work is recommended, what it will cost you (if anything), and how long it will take. There's no hard sell if you're not eligible for grants, we'll tell you honestly and explore all other options.