Draught-proofing for a warmer home

Draughts are uncontrolled air leaks that allow cold air into your home and warm air out, significantly contributing to heat loss. Effective draught-proofing can reduce this loss, improve comfort, and lower your energy bills. This guide offers practical advice for identifying and resolving draughts, helping you take control of your home's energy efficiency.

Improving your home's energy efficiency, such as by tackling draughts, is a smart way to manage your energy use. Fuse Energy is committed to helping you understand and control your home energy, starting with simple steps that make a real difference. Click here to see how easy it is to switch.

Understanding draughts: the basics of unwanted airflow

What is a draught?

A draught is a current of cool air, typically entering a room or chimney. In British English, draught is the standard spelling when referring to this unwanted airflow. It describes the sensation of cold air moving through your home, often making a room feel colder than the thermostat indicates.

Draught versus draft: the UK perspective

While 'draft' and draught are alternate spellings of the same concept, their usage often differs. In British English, draught specifically refers to a current of air, an act of drinking, or the depth of water needed to float a ship. Conversely, 'draft' in British English is typically reserved for other meanings, such as a preliminary version of a document, military enlistment, or a bank payment order. It is important to use draught when discussing unwanted airflow in a UK context to maintain clarity and adhere to standard spelling.

Why draught-proof your home?

Draught-proofing your home offers multiple benefits, from immediate improvements in comfort to long-term financial and environmental advantages.

Improved comfort and warmth

Sealing unwanted air leaks means your home will feel warmer and more consistent in temperature. No more cold spots or sudden chills from poorly sealed windows or doors. This allows you to enjoy a more comfortable living environment, especially during colder months, without constantly adjusting your thermostat.

Reduced energy bills

By preventing warm air from escaping and cold air from entering, draught-proofing reduces the workload on your heating system. This means your boiler will not have to work as hard or as long to maintain a comfortable temperature, leading to lower energy consumption and, consequently, reduced energy bills. According to Ofgem1, the average UK home uses around 2,500 kWh of electricity and 9,500 kWh of gas per year, making any reduction in wasted energy impactful. These typical domestic consumption values (TDCVs) were updated by Ofgem and became effective from 1 July 2026.

Environmental benefits

Reducing your energy consumption directly translates to a smaller carbon footprint. When your home uses less energy for heating, it contributes less to greenhouse gas emissions. Draught-proofing is a simple yet effective step towards a more sustainable lifestyle, aligning with broader efforts to combat climate change.

Identifying draughts: where to look

Draughts can come from obvious places, but many common sources are often overlooked. A systematic approach will help you find and seal them effectively.

Windows and doors

These are often the most common culprits. Check around window frames, sills, and where the glass meets the frame. For doors, inspect the gaps around the edges, especially at the bottom. You might feel air movement, or see light coming through gaps.

Floorboards and skirting boards

Gaps between floorboards, or where skirting boards meet the floor or wall, can be significant sources of draughts. These small openings can allow cold air from beneath the floor or from adjoining rooms to enter your living space.

Loft hatches and pipework

Loft hatches, if not properly sealed, can allow a considerable amount of heat to escape into the unheated loft space. Similarly, gaps around pipework where it passes through walls or floors can create pathways for cold air.

Chimneys and fireplaces

Unused chimneys are essentially large holes in your home's thermal envelope, allowing warm air to escape and cold air to enter. Even active fireplaces can be draughty when not in use.

Effective draught-proofing solutions

Once you have identified the sources of draughts, choosing the right solution is key. Options range from simple DIY fixes to professional installations.

DIY fixes: quick and affordable

Many draughts can be tackled with readily available materials. Self-adhesive foam strips are excellent for sealing gaps around windows and doors. Silicone sealant can be used for cracks in window frames or skirting boards. For letterboxes, brush strips are a simple and effective solution. Keyhole covers can also prevent small but persistent draughts.

Professional solutions: when to call an expert

For larger or more complex draughts, such as those around loft hatches or significant gaps in flooring, professional help might be necessary. Experts can offer more durable solutions like mastic sealants, or advise on more extensive insulation improvements that integrate with draught-proofing.

Materials and tools for draught-proofing

A basic toolkit for DIY draught-proofing includes:

• Self-adhesive foam strips: For sealing gaps around windows and doors.
• Silicone sealant and a caulking gun: For filling cracks and larger gaps.
• Brush strips: Ideal for the bottom of doors and letterboxes.
• Keyhole covers: A small but effective fix.
• Expanding foam: For larger, harder-to-reach gaps, such as around pipework.
• Screwdriver and utility knife: For installation and trimming.

Maximising your energy efficiency

Draught-proofing is a powerful first step, but integrating it with smart energy management can amplify its benefits.

Integrating draught-proofing with smart energy management

By reducing uncontrolled airflow, your heating system becomes more efficient. This means your smart thermostat can more accurately control your home's temperature, as it is not constantly battling incoming cold air. Draught-proofing creates a stable environment, allowing smart energy systems to optimise heating schedules and maintain comfort with less energy.

Monitoring your energy use with the Fuse app

The Fuse app empowers you to monitor your energy usage, making the impact of your draught-proofing efforts tangible. By tracking your electricity and gas consumption, you can see how effectively sealing those leaks translates into lower energy use. This transparency reinforces your control over your home's energy and encourages further smart energy choices. It is a power play: taking control of your energy use and making your home more efficient.

Draught-proofing is an accessible home improvement that offers immediate benefits for comfort and long-term advantages for your energy bills and the environment. By understanding what draughts are, identifying their sources, and implementing effective solutions, you can transform your home into a warmer, more energy-efficient space. Fuse Energy is here to support you on this journey, providing the tools and insights to help you make the most of your energy.

Managing your home's energy should be simple and transparent. Fuse Energy offers clear pricing, real-time usage data through our app, and 24/7 human customer support to help you stay in control. Switching to Fuse is quick and easy, allowing you to start making smarter energy choices for your home today.

References

1. Ofgem. Review of typical domestic consumption values