Written by
Charlotte
Published on
November 26, 2025


When you think about insulating your home, you might first think of your walls. However, one of the most significant sources of heat loss in a home is the roof. An uninsulated home can lose up to 25% of its heat through the roof, making loft insulation one of the most impactful and cost-effective energy-saving measures you can take. Here are the top 5 benefits of properly insulating your loft.
This is the most immediate and tangible benefit. By preventing heat from escaping through your roof, loft insulation means your heating system doesn’t have to work as hard to maintain a comfortable temperature. This directly translates to lower energy consumption and, therefore, lower heating bills. Depending on your home, you could save up to £250 per year.
Loft insulation doesn’t just keep your home warmer in the winter; it also helps to keep it cooler in the summer. The insulation acts as a barrier, slowing down the transfer of heat. This means your home will maintain a more stable and comfortable temperature all year round, making your living spaces more pleasant.
Energy efficiency is an increasingly important factor for potential homebuyers. A well-insulated home with a good Energy Performance Certificate (EPC) rating is more attractive on the market. Investing in loft insulation can, therefore, increase the value of your property, making it a smart financial decision for the future.
By using less energy to heat your home, you are also reducing your household’s carbon footprint. Burning fewer fossil fuels means lower carbon dioxide emissions, which is better for the environment. Loft insulation is a simple way to make your home more eco-friendly.
Compared to other major home improvements, loft insulation is relatively quick and inexpensive to install. For a straightforward project, the installation can often be completed in just a few hours with minimal disruption to your home. Given the potential energy savings, it’s an investment that can pay for itself in just a few years.
The recommended depth for loft insulation is currently 270mm (about 11 inches). If your loft has no insulation or if the existing insulation is below this recommended depth, you could significantly benefit from a top-up. It’s easy to check—if you can see the tops of your ceiling joists, you probably need more insulation.
At Rockwarm, we provide professional loft insulation services to ensure your home is as energy-efficient as possible. Our team can assess your current insulation and install high-quality materials to the recommended depth, all with the friendly and reliable service we’re known for.
Ready to start saving money and enjoying a more comfortable home? Contact Rockwarm today for a free quote on your loft insulation.