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Stephen Sumner is an experienced Heating and Air Conditioning Engineer currently employed at Sure Maintenance since June 2019 and also serves as an HVAC Engineer at AC Air Systems since April 2016. Previous roles include Air Conditioning Engineer at DL M&E Building Services Limited from May 2015 to March 2016 and Pro-Temp Air Conditioning from September 2009 to May 2015. Stephen's expertise encompasses installation, maintenance, and servicing of various systems including air handling units, chillers, VRV/VRF systems, and more. Stephen holds an NVQ Level 2 in Refrigeration/Air Conditioning from Liverpool Community College (2011-2013) and completed GCSEs at Maghull High School (2004-2009).