Ductwork Supplies, BESA Training & HVAC Leakage Testing Duct Cleaning & Duct Sealing Equipment Keep up to date with the latest Hasman news Air Hygiene Operative Course 16th December 2021You might be wondering, what is the air hygiene operative course like? Is it difficult? What do I have to do? Will I be cleaning… read more We’re Still Open! 9th February 2021At Hasman we are still providing training to key workers during lockdown from our Liverpool Headquarters. All of our existing training dates are still in… read more Can Flexible Ductwork Be Cleaned? 29th January 2021According to the National Air Duct Cleaners Association (NADCA), the failure to clean ducts may lead to the development of ailments like allergies, respiratory complications,… read more Follow us on LinkedIn for industry news and project updates!