Solarcrest are certified PH designers and contractors specialising in MVHR. Design, Supply, Install, Commissioning & Servicing are managed under one roof without subcontractors marking their own homework. We’re the only people who supply Airflow, Zehnder and Brink, the top three PH systems, and we’re the only people providing a parts and labour warranty up to seven years, covering the ducting and operational performance unlike the manufacturer’s warranty which only covers the fan unit. Solarcrest can help with airtightness and building fabric too. If you want Passivhaus or something close just drop us a line. Meanwhile check our reviews.