- Lis and Sarah transformed their 1800s East Oxford terrace into a warm, energy-efficient home with eco-retrofit help from Cosy Homes Oxfordshire.
- Key upgrades included solar panels, an air source heat pump, underfloor heating, and insulation to reduce heat loss and energy use.
- The retrofit slashed their carbon emissions by up to 68%, making their home more comfortable, eco-friendly, and cheaper to run.
Inside an eco-retrofit transformation in an East Oxford home with Cosy Homes Oxfordshire
Lis and Sarah live in a historic terrace house in East Oxford. The couple shared their inspiring journey towards sustainable living, supported by Low Carbon Hub’s Cosy Homes Oxfordshire. Check out the full story on their website.

Together, they transformed their 1800s home into a warm, energy-efficient haven
They struggled to keep their home warm with a gas boiler and a small wood stove. With solid brick walls and little insulation, it was difficult to maintain a steady temperature, especially during colder months. Something had to change.
That led them to work with Cosy Homes Oxfordshire, an eco-retrofit specialist

Cosy Homes Oxfordshire took charge of everything. They drafted a Whole House Plan, prioritising energy-saving measures like insulation, renewable energy sources, and efficient heating systems. Once you have this plan, it comes down to hard work, and sourcing the right contractors.
Thankfully, that’s all part of the package, as Cosy Homes sourced and managed all of the contractors for the project.
The results were transformative
Solar panels were installed on the roof, an air source heat pump replaced the gas boiler, and underfloor heating was added across the ground floor.
Insulation was a key focus—walls, floors, and the loft were all treated to prevent heat loss. Additionally, they installed traditional timber sash windows with double glazing. The glazing held in more heat than ever before, while the style retained their home’s look and feel.


Lis shared that their home now maintains a constant, comfortable temperature, a major change from the chilly conditions they had grown used to. What’s more, the couple has significantly reduced their carbon footprint.
Based on Cosy Homes’ estimate, Lis and Sarah will slash their home’s carbon emissions by as much as 68%. That could save them up to 59% annually on their energy bills.
Warmer, more comfortable, and cheaper to run. Not to mention significantly more efficient. The eco-retrofit journey was a plain and simple win. It’s an encouraging story as a reminder that you can improve your energy consumption, no matter what house you live in.