Swanson Building Services is an Air Tightness Testing company for compliance with ADL1A of the building regulations.We are BINDT registered and able to provide air tightness testing for domestic buildings. We are able to provide air tightness testing throughout Cornwall, Devon, Somerset, Dorset and further afield if required.Our technicians carry out a professional service and work to the highest standards.Please feel free to contact us for a free no obligation quotation or any queries regarding the air tightness testing process.