How to Improve Your EPC Score

Your Energy Performance Certificate (EPC) score affects your property’s value, running costs, and legal compliance—especially if you’re a landlord. Whether you’re selling, letting, or simply want to reduce your bills, boosting your EPC rating is a smart move. Here’s how to do it.

Why Your EPC Score Matters

  • Legal Compliance: Rental properties must meet minimum EPC standards (typically E or above)
  • Lower Energy Bills: A higher rating means better efficiency and reduced running costs
  • Property Value: Energy-efficient homes attract more buyers and tenants
  • Environmental Impact: Helps reduce carbon emissions

Top Ways to Improve Your EPC Score

  1. Upgrade Loft Insulation: Install at least 270mm of mineral wool insulation to prevent heat loss.
  2. Install Cavity Wall Insulation: Filling wall cavities significantly improves thermal performance.
  3. Replace Inefficient Boilers: A modern condensing boiler with smart controls can boost your rating.
  4. Install Double or Triple Glazing: Prevents heat from escaping and improves overall comfort.
  5. Use Low-Energy Lighting: Swap all bulbs for LEDs or CFLs.
  6. Add Smart Heating Controls: Thermostatic radiator valves and programmable thermostats improve energy use.
  7. Seal Gaps and Draughts: Draught-proofing doors, windows, and floors helps retain heat.
  8. Install Renewable Energy: Solar panels, air source heat pumps, or solar thermal systems can significantly improve your EPC.

Quick EPC Boosters

ActionImpactCost
LED Light BulbsSmall score improvementLow
Draught ProofingBetter insulation ratingLow
Hot Water Tank JacketImproves hot water efficiencyLow
Smart ThermostatImproves control and efficiencyMedium
Roof InsulationSignificant EPC gainMedium
New BoilerMajor score upgradeHigh

Tips for Landlords

Since the Minimum Energy Efficiency Standards (MEES) require rental properties to have an EPC rating of E or above, landlords must act quickly. Investing in insulation, heating upgrades, and smart controls can ensure compliance and attract better tenants.

When Should You Update Your EPC?

Your EPC lasts 10 years, but if you’ve made energy improvements, it’s worth updating it sooner. A higher rating can make your property more competitive and boost its market appeal.