Just because you can’t see mould doesn’t mean it’s not there. Mould can grow behind walls, under carpet and in ceiling tile. A thorough air quality test will be required to determine what’s present and where it’s growing. We prefer to avoid charging customers for unnecessary services, so before you call us, we recommend that you air out your entire house and give it a top-to-bottom cleaning, which includes your ducts. This may rectify the musty smell and save you money. If you still smell something after all that, give us a call.