Absolutely! Our garden buildings are comfortable to use all year round. In fact, our buildings are generally more thermally efficient than an average house. The SIP construction is so well insulated that the interior will remain cool in the summer and will stay nice and warm in the winter, so you can use it throughout the year in complete comfort. Because garden rooms are small and well insulated, they take very little to warm up. In the summer, you may want to install an air conditioner to stay cool if you are using your garden room as a gym. Our buildings are generally more thermally efficient than an average house.