Warmer Homes, Greener Planet | IronmongeryDirect

Warmer Homes, Greener Planet

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Warmer Homes, Greener Planet

Using Energy Performance Certificate (EFC) data, we have revealed the local authorities with the most work opportunities for tradesspeople, based on the number of homes where energy efficiency could be improved.

This page includes our key data findings, as well as an interactive map and table where you can explore the level of energy efficiency in our local area.

Key Findings:


UK homes could be made more energy efficient


Of properties have a lower EPC rating than their potential


Homes in South East England could improve their energy rating


With a proposed law potentially requiring millions of UK buildings to be made more energy efficient by 2035, there could be a surge in demand for tradespeople's services, from adding insulation to installing condensing boilers.

The local authority with the most opportunities is Birmingham, where 238,926 properties have a lower EPC rating than their potential.

To see how many homes could improve their energy rating in your area, explore our interactive map and table below.


Home energy efficiency in the UK

Number of homes where the EPC ratings could be improved



Local authorities with the most opportunities

Number of homes in each local authority

that could be made more energy efficient

Local Authority
Properties where energy ratings could be improved
Total properties
Percentage of properties where energy rating could be improved
No data found.

Making homes more sustainable

To help tradespeople who are tasked with improving the energy rating of buildings, we spoke to Oliver Creevy, managing director at Insulation Advisor, to share some of the main ways to improve efficiency:

  1. Install a condensing boiler - “Upgrading to a modern, energy-efficient boiler, such as a condensing boiler, can significantly reduce energy consumption and enhance the overall performance of a heating system."
  2. Replace windows and doors - “Windows and doors are key to maintaining a well-insulated home. Double or triple glazing for windows improves thermal efficiency, while upgrading doors, especially those with gaps or poor sealing, can also contribute to better insulation.”
  3. Upgrade insulation - “Assess the current insulation levels in the property and suggest upgrades where necessary. This can include loft insulation, cavity wall insulation, and insulating floors.”
  4. Draught-proofing - “Sealing gaps around windows, doors, and other openings can prevent cold air from entering and warm air from escaping. This simple yet impactful act improves energy efficiency and enhances comfort by maintaining a consistent temperature.”
  5. Install solar panels - “While the initial investment can be substantial, the long-term benefits of solar panels, including lower electricity bills and a reduced carbon footprint, make them a worthwhile suggestion for customers looking to embrace renewable energy solutions.”

For more information and support

For more information about IronmongeryDirect, visit: https://www.ironmongerydirect.co.uk/


Data sourced from the Department for Levelling Up, Housing & Communities in November 2023. Data for Scotland and Wales is incomplete.