Insulate the Walls
The first step is, of course, to check if the building is adequately insulated. Heating poorly insulated rooms results in energy loss that is as costly for the wallet as it is for the environment. Especially since the atmosphere will feel stuffy because of the humidity which will likely in turn lead to mould in the medium term.
Unfortunately, this may require major renovation work, particularly if it is an old cottage as the walls and roof may not contain enough insulation material.
Change the Doors and Windows
In addition to wall insulation, you will also have to assess the doors and windows’ energy efficiency. Sometimes, replacing the gaskets is all you need to do to make a big difference. But if the doors and windows are past their prime and not doing the job, they must be changed.
To find out, simply run your hand or a thin sheet of paper along the edge to detect potential air leaks.
Patch All Holes
If this hasn’t already been done, don’t forget to fill in any holes or cracks in the foundation. This will both stop unwanted outdoor air from seeping in and, most importantly, small critters from taking refuge inside your cottage when the temperature drops. An ounce of prevention is worth a pound of cure, especially when that cure is paying for an exterminator!