EPC Advice

How to Improve Your EPC Rating

Practical steps homeowners and landlords can take to increase their Energy Performance Certificate rating before selling or renting.

By Move-Nest Editorial Team · 13 Mar 2026
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What is an EPC rating?

An Energy Performance Certificate (EPC) measures how energy efficient a property is, giving it a rating from A (most efficient) to G (least efficient). The rating is based on factors such as insulation, heating systems, glazing, lighting and renewable energy sources.

An EPC assessment typically takes around 30–60 minutes to complete, depending on the size and complexity of the property.

If you're preparing for an assessment, you can book an EPC online here.

Why improving your EPC rating matters

A better EPC rating can benefit homeowners, landlords and buyers in several ways:

  • Lower energy bills
  • Improved property value
  • More attractive to buyers and tenants
  • Helps landlords meet current and future efficiency regulations

Many landlords are already improving their ratings ahead of potential government requirements for rental properties to reach a minimum EPC rating.

Upgrade your insulation

Insulation is one of the most effective ways to improve your EPC rating.

Key areas include:

  • Loft insulation
  • Cavity wall insulation
  • Floor insulation

Heat loss through poorly insulated roofs and walls can significantly impact a property's EPC score.

Improve your heating system

Your boiler and heating controls have a large influence on EPC calculations. Replacing an old inefficient boiler with a modern condensing boiler can improve the rating considerably.

Other useful upgrades include:

  • Thermostatic radiator valves
  • Smart thermostats
  • Modern heating controls

Switch to energy-efficient lighting

Lighting plays a smaller role in EPC calculations but is one of the easiest improvements to make. Replacing traditional bulbs with LED lighting throughout the property can help improve the overall rating.

Upgrade windows and glazing

Double glazing reduces heat loss and improves a property's energy efficiency. If your home still has single-glazed windows, upgrading them can contribute to a higher EPC score.

Consider renewable energy

Renewable energy systems can significantly boost an EPC rating. Options include:

  • Solar panels
  • Air source heat pumps
  • Solar water heating

While these upgrades require larger investment, they can greatly improve energy efficiency and long-term running costs.

Provide documentation during the EPC assessment

During an EPC assessment, assessors can only record improvements that are visible or supported by documentation.

If you've installed insulation or upgraded heating systems, providing documentation such as installation certificates can help ensure these improvements are reflected in the EPC rating.

Book an EPC assessment

If you're preparing to sell or rent a property, an EPC is legally required. Move-Nest provides EPC assessments across the UK with a fast and simple booking process.

You can easily arrange an assessment through the Move-Nest online booking system.

EPC assessments across the UK

Move-Nest regularly carries out EPC assessments in locations across the UK. If you need an EPC locally, you can find more information on our location pages:

Final thoughts

Improving your EPC rating doesn’t always require major renovations. Simple upgrades like insulation, heating improvements and energy-efficient lighting can make a noticeable difference.

If you're unsure about your property's rating or need a new certificate, you can book an EPC assessment online with Move-Nest.

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