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When You’re living in a flat or really old house the only option to insulate the interior is from the inside. Luckily now You can purchase innovate materials which can protect each wall from loosing the heat, You’ll got even two times lower bills for heating because of that! But before You even start to insulate every surface maybe You consider to replace the windows for new types. Cause vintage, wooden windows are very leaky and loosing a lot of heat in time of winter. In case of old house You will probably need to refresh entire roof by exchanging the tiles for new one. Doesn’t matter if You like to protect the wall of only remove the windows You’ll have to hire proper team of workers to help You with renovation. Most of companies nowadays got official webpages where You can find an offer.