If your home has an EPC rating of E or below, you’re not alone. Many UK homeowners face low EPC scores due to outdated heating systems, poor insulation, or inefficient glazing. Fortunately, there are proven home improvements that can significantly raise your EPC rating—even from Band E to Band B.

For expert guidance and accurate assessment, our EPC Assessors in London can evaluate your property and recommend targeted upgrades:
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1. Upgrade Your Heating System

Old or inefficient boilers are a major factor in low EPC ratings. Key improvements include:

  • Replacing non-condensing boilers with high-efficiency condensing models

  • Installing zoned heating controls for targeted warmth

  • Adding thermostatic radiator valves (TRVs)

  • Upgrading to heat pumps or hybrid systems for modern efficiency

These upgrades are proven to deliver large EPC gains. Learn more about our services and pricing:
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2. Improve Insulation

Insulation reduces heat loss and is one of the fastest ways to boost an EPC rating. Focus on:

  • Loft insulation: Ensure at least 270mm depth

  • Cavity wall insulation: Fill gaps in uninsulated walls

  • Floor insulation: Particularly for suspended timber floors

  • Pipework and hot water cylinder insulation

Providing certificates or installation documentation ensures assessors credit your home properly:
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3. Upgrade Windows and Doors

Glazing is a common culprit for low EPC scores. Steps to improve your rating include:

  • Installing double or triple-glazed windows

  • Replacing poorly sealed door frames

  • Ensuring correct installation with airtight seals

Even small improvements in window performance can make a noticeable difference in EPC scores.

4. Address Air Leaks and Thermal Bridging

Hidden air leaks and thermal bridges reduce energy efficiency and comfort. Common fixes:

  • Draught-proofing doors and windows

  • Sealing gaps around loft hatches and pipework

  • Adding thermal breaks in floor-to-wall junctions

  • Ensuring proper loft and roof-edge insulation

Professional EPC assessments can identify these “hidden killers” and guide repairs:
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5. Add Renewable Energy Sources

Adding renewable technologies can improve EPC ratings and reduce bills:

  • Solar photovoltaic (PV) panels

  • Solar water heating

  • Battery storage systems

Providing documentation of these installations ensures your EPC reflects the full benefits.

6. Upgrade Lighting

Switching to low-energy LED lighting in most rooms can improve the EPC band and reduce electricity consumption. This is a low-cost improvement that complements bigger upgrades.

7. Why Professional Assessment Matters

Even with upgrades, your EPC rating may not reflect actual improvements if:

  • Documentation is missing

  • Thermal bridges or air leaks are overlooked

  • SAP calculations are inaccurate

Our team ensures your assessment accounts for all improvements:
👉 https://epcrate.co.uk/contact-us-epc-services-london/

Email :info@epcrate.co.uk

Phone:020 34884142