EPC C by 2030: Five ways to find the cheapest route for your rental

The UK Government is raising the Minimum Energy Efficiency Standards (MEES) for privately rented homes to EPC C by 2030. Over half of privately rented homes in England are currently rated below C.

The Government's regulations cap what a landlord must spend at £10,000 per property. That cap is a ceiling, and most homes need far less. Kamma has found the average cost per property can be reduced to £4,500 by optimising which upgrades are made. What you pay depends on where your property really starts, which upgrades you choose, and the order you do them in.

Here are five ways to keep that cost down.

1. Start from your property as it is today

Your current EPC may describe a home that no longer exists. Certificates last ten years, so yours may pre-date a new boiler, a loft top-up or new windows.

Most EPCs on rental homes also still rest on a 2012-based methodology, with pricing not updated since that point. The upgrade costs they suggest can put landlords off work that is cheaper than it looks.

• Look up your current certificate on the Government's EPC register and note the date it was issued
• List any work done since then.
• Check the recommendations on the certificate against what is already in place.

2. Have your evidence ready before the assessor arrives

Since 15 June 2025, EPCs have been produced using a more detailed assessment that records things like heating controls, window types and hot water cylinders. Improvements are only credited if the assessor can see them or you can prove them. Insulation hidden under floors or behind walls is easy to miss.

• Installer certificates and invoices for insulation, glazing and heating work.
• The make and model of your boiler and heating controls.
• Photos of loft insulation depth and any underfloor insulation.
• Details of the hot water cylinder and its insulation.

Invoices matter for a second reason. Money spent on improvements since 1 October 2025 counts towards the £10,000 cap.

3. Do the low-cost measures first

Some improvements cost very little and still move the rating. Common examples include:

• Insulating the hot water cylinder and pipework.
• Switching any remaining bulbs to low-energy lighting.
•  Adding a programmer, room thermostat and thermostatic radiator valves.
• Topping up loft insulation.
• Draught-proofing doors and windows.

How much each measure is worth depends on the property. In one home, a cylinder jacket and better controls might be enough to reach C. In another, the gap can only be closed with insulation or a heating upgrade. Model the whole combination before you book any work, so you pay for the measures that get you to C and nothing more.

4. Aim to reach C before October 2029

The Government plans to introduce a new style of EPC, based on its Home Energy Model, and the 2030 standard will be measured against it. There is a transition rule worth planning around: a property rated C on its current EPC before 1 October 2029 will count as compliant until that certificate expires.

A certificate lasts ten years. Reaching C under today's system, with good evidence behind it, could keep you compliant well beyond 2030 without being reassessed under the new metrics.

5. Check grants before you pay for anything

Several schemes can reduce or cover the cost of upgrades in rented homes. Eligibility usually depends on the property's current rating and on your tenant's circumstances.

• Warm Homes: Local Grant (England only) is run by councils for homes rated D to G where household income is usually £36,000 or less. Under the scheme guidance, a landlord can have one property fully funded, with a 50% contribution for any further homes.
• ECO4 is open until 31 December 2026 for tenants who receive qualifying benefits, with the landlord's consent.
• The Boiler Upgrade Scheme gives £7,500 towards an air or ground source heat pump in England and Wales, and properties you rent out are eligible. Homes heated by oil or LPG with no mains gas can get an extra £1,500 until March 2027.

Check eligibility before you commission work. A measure paid for privately may not be fundable afterwards.

Find your cheapest route to C

Kamma Climate's Property Upgrade Tool brings these steps together, using the UK's most accurate available property data. Enter your postcode, add any work you have already done, and see the cheapest combination of upgrades to reach C, along with the grants your property could qualify for. Your plan takes just two minutes. If you want full quotes and help with grants, you can book an optional free consultation with verified local experts.

The tool is free for all NRLA members.