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Will my garage conversion room be colder than the rest of my house?

by | Jan 2, 2024 | Building Advice

Converting a garage into a functional living space is a popular home improvement project that can add valuable square footage to your home. However, many homeowners wonder whether the converted room will be colder than the rest of the house, given that garages are typically not designed for regular habitation. In this article, we will explore the factors that can influence the temperature of a garage conversion room and offer solutions to ensure optimal comfort and insulation.


One of the primary reasons why a garage conversion room might be colder is the lack of proper insulation. Garages are usually not insulated to the same standards as the rest of the house, as they are primarily used for storage or to park vehicles. Without adequate insulation, the room can lose heat quickly, leading to temperature variations compared to the rest of the house.

Solution: Before converting your garage, invest in high-quality insulation for the walls, ceiling, and floor. Properly insulating the room will create a thermal barrier, helping to retain heat and maintain a comfortable temperature.

Heating System

The heating system in the converted garage room plays a significant role in regulating the temperature. If the existing heating system in your home does not extend to the garage, the room might feel colder, especially during colder months.

Solution: Consider extending your central heating system to the garage conversion. This can be achieved by installing additional radiators or connecting the room to your existing HVAC system. Alternatively, you could opt for an independent heating solution, such as a ductless mini-split or electric heater, to keep the room warm.


Garages often have limited ventilation compared to habitable spaces in the house. Inadequate ventilation can lead to poor air circulation and may cause the room to feel colder.

Solution: Ensure the garage conversion has adequate ventilation, such as windows or mechanical ventilation systems, to allow for proper airflow. This will not only help regulate the temperature but also improve indoor air quality.


The type of flooring used in the converted room can also affect its temperature. Concrete floors, which are common in garages, tend to be colder than insulated floors found in other rooms of the house.

Solution: Install a suitable flooring material that provides both insulation and comfort. Carpets, laminate flooring, or engineered wood with an underlay can help retain heat and make the room feel warmer.

External Factors

The location of your garage and its exposure to external elements can influence the room’s temperature. Garages situated on the north side of the house or in areas with harsh weather conditions may experience more significant temperature fluctuations.

Solution: Consider planting shrubs or trees around the garage to create a natural windbreak and provide additional insulation. Installing energy-efficient windows and doors can also help reduce heat loss and drafts.


Whether your garage conversion room will be colder than the rest of your house largely depends on how well it is insulated, heated, and ventilated. By addressing these factors during the conversion process, you can create a comfortable and inviting living space that matches the temperature of the rest of your home. Consulting with a professional contractor or architect experienced in garage conversions can ensure that the project is done with proper insulation and temperature control in mind, providing you with a cozy and enjoyable room for years to come.

So if you are considering converting your garage and you would like to arrange quotations from builders in Oldham then we can help. Contact us today to find our more about our process and to receive a free estimate.

John Doe

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