top of page

Environmentally Conscious Homes Made Easy: A Step-by-Step Guide to Retrofitting

As the world grapples with the challenges of climate change and environmental sustainability, the concept of eco homes has gained significant traction in the United Kingdom. Retrofitting existing homes to make them more eco-friendly is a powerful way to reduce energy consumption, lower carbon emissions, and save money on utility bills. At WR-AP we have developed an in-house Green Guide for homeowners that gives them a comprehensive guide to retrofitting their existing house. In this blog we will give you an overview of our guide and take you through the step-by-step process of retrofitting your home in the UK, making the transition to an eco-friendly and energy-efficient living space not only easy but also beneficial for both the environment and your wallet.

1. Understanding Retrofitting

Before diving into the practical steps of retrofitting, it's essential to understand what retrofitting is and why it's important. Retrofitting refers to the process of upgrading an existing building to improve its energy efficiency, reduce its environmental impact, and enhance overall sustainability. In the context of eco homes, this typically involves measures such as improving insulation, upgrading heating systems, and incorporating renewable energy sources.

Before and after of 25CR

2. Assessing Your Home's Current Energy Performance

The first step in retrofitting your home is to assess its current energy performance. This will help you identify the areas that need improvement and create a roadmap for the retrofitting process. Consider the following assessments:

a. Energy Audit: Hire a professional energy auditor to evaluate your home's energy use, identify areas of inefficiency, and recommend improvements. WR-AP have links to consultants that can assist you with this process.

b. Thermal Imaging: Thermal imaging can reveal heat leaks, poorly insulated areas, and other energy-related issues within your home.

c. EPC Rating: Check your home's Energy Performance Certificate (EPC) rating, which provides information on its energy efficiency. A lower rating indicates the need for improvements. In our experience EPC ratings are a good starting point for the discussion on retrofitting a home but they are not the panacea.

3. Setting Clear Retrofitting Goals

Once you have a clear understanding of your home's energy performance, it's time to set specific retrofitting goals. These goals can include:

a. Energy Savings: Determine how much energy you aim to save through the retrofitting process. Set realistic targets that align with your budget and the available technology.

b. Carbon Emissions Reduction: Calculate the reduction in carbon emissions you want to achieve. This can be expressed as a percentage or specific metric tons of CO2 per year.

c. Cost Savings: Estimate how much money you want to save on energy bills annually. This will help you assess the return on investment for your retrofitting project.

Efficiency Interventions for 25CR

4. Budgeting and Financing

Retrofitting can be a significant financial investment, but it's essential to view it as a long-term cost-saving measure. We can help you to create a detailed budget that includes costs for materials, labour, permissions, and any necessary professional assessments. Consider the following financing options:

a. Government Grants and Incentives: Research available grants and incentives from the UK government, such as assistance with ASHPs, to help offset retrofitting costs.

b. Energy Efficiency Loans: Some financial institutions offer loans specifically for energy-efficient home improvements. These loans often have favourable terms and interest rates.

c. Personal Savings: If possible, consider using your savings or investments to fund the retrofitting project. The long-term savings on energy bills can provide a substantial return on your investment.

5. Selecting the Right Retrofit Measures

Retrofitting can encompass a wide range of measures, depending on your home's specific needs and your retrofitting goals. Common retrofit measures include:

a. Improving Insulation: Enhancing wall, roof, and floor insulation can significantly reduce heat loss and energy consumption.

b. Upgrading Windows and Doors: Replacing old, draughty windows and doors with energy-efficient alternatives can improve insulation and reduce drafts.

c. Energy-Efficient Heating Systems: Consider upgrading your heating system to a more energy-efficient option, such as a heat pump or a condensing boiler.

d. Renewable Energy Sources: Installing solar panels, wind turbines (clearly not viable in the majority of cases!), or other renewable energy systems can generate clean energy and reduce your reliance on the grid.

e. Energy-Efficient Appliances: Replace outdated appliances with energy-efficient models that carry the Energy Star label.

f. Smart Home Technology: Incorporate smart thermostats, lighting, and energy monitoring systems to better control and optimize your energy usage.

Efficiency Interventions at 25CR

6. Choosing Eco-Friendly Materials

When retrofitting your home, prioritise the use of eco-friendly and sustainable materials. Look for products that are energy-efficient, low in volatile organic compounds (VOCs), and have a minimal environmental impact. Sustainable materials can include recycled, reclaimed, or rapidly renewable resources, which are better for both your home and the environment.

7. Finding Qualified Contractors

Retrofitting your home may require the expertise of various professionals, including ourselves as architects, builders, insulation installers, and electricians. It's crucial to hire qualified contractors with experience in eco-friendly retrofitting. Look for professionals who hold relevant certifications and have a portfolio of successful eco home projects.

Before and after of 25CR

8. Obtaining Necessary Permissions

Before starting your retrofitting project, check with your local authorities to determine whether you need any permits or approvals. Depending on the scope of your project, you may require planning permission or building regulations approval.

9. Implementing Energy-Efficient Design

Consider the overall design of your retrofit project to ensure energy efficiency. Pay attention to details like the orientation of solar panels, the placement of windows, and the use of natural light. A well-thought-out design can maximize energy savings and comfort.

10. Managing the Retrofit Process

Effective project management is crucial to the success of your retrofitting project. This includes:

a. Scheduling: Develop a timeline that outlines the start and completion dates for each phase of the retrofitting process.

b. Budget Management: Keep track of expenses and ensure that the project stays within budget.

c. Quality Control: Regularly inspect the work to ensure that it meets quality and energy efficiency standards.

d. Communication: Maintain open communication with contractors, subcontractors, and any other professionals involved in the project.

11. Post-Retrofit Assessments

After the retrofitting project is complete, it's essential to assess its performance. This includes:

a. Energy Monitoring: Use energy monitoring systems to track energy consumption and savings.

b. Thermal Imaging: Conduct post-retrofit thermal imaging to identify any remaining heat leaks or insulation issues.

c. Energy Audits: Periodically schedule energy audits to ensure that your home remains energy-efficient.

Interior at 25CR

12. Enjoying the Benefits of Your Eco Home

Once your eco home retrofit is finished, you can begin to enjoy the numerous benefits, which should include:

a. Lower Energy Bills: Expect to see a noticeable reduction in your energy bills, saving you money in the long run.

b. Reduced Carbon Emissions: Your carbon footprint will be significantly smaller, contributing to a more sustainable future.

c. Increased Home Value: The improvements made to your home can enhance its overall value.

d. Comfort and Health: An eco home often provides a more comfortable and healthier living environment.

e. Environmental Contribution: You'll be doing your part to combat climate change and reduce the UK's carbon emissions.

13. Sharing Your Experience

Your journey to retrofitting your home into an eco-friendly space is valuable not only for your personal benefits but also for the broader community. Consider sharing your experience through blog posts, social media, or local community events. Inspire others to take action and make their homes more eco-friendly.

25 CR Rear Extension

Retrofitting your home to make it eco-friendly is a significant and rewarding undertaking, as a practice we have undertaken a number of house retrofit projects and our architects are skilled at designing both beautiful and sustainable homes. By following our step-by-step guide, you can navigate the process with confidence, knowing that you are contributing to a more sustainable future while enjoying the many benefits of an energy-efficient and environmentally responsible home. Retrofitting may take time and effort, but the long-term advantages for your wallet, the environment, and the overall quality of life make it a truly worthwhile endeavor. As the UK continues its journey toward sustainability, retrofitting your home can be a powerful step in the right direction and we at WR-AP would love to help you make it happen.

If you have a project where you’d like to discuss our homes retrofit services or you’d like a copy of our WR-AP Green Guide, get in touch with our director Sean Weston

This blog post has been written by Sean, one of the directors here at WR-AP . Sean's desire to work in an industry that could help people and society in a small way led him to pursue a career in architecture. You can read more about Sean here.

Recent Posts

See All


bottom of page