Prepaid preventive maintenance service plans for heating, ventilating and air conditioning (HVAC) systems; Prepaid preventive maintenance service plans for heating, ventilation, air-conditioning and refrigeration (HVAC/R) equipment and systems

'air':10,23 'air-condit':22 'condit':11,24 'equip':28 'heat':7,20 'hvac':12 'hvac/r':27 'mainten':3,16 'plan':5,18 'prepaid':1,14 'prevent':2,15 'refriger':26 'servic':4,17 'system':13,30 'ventil':8,21

Air duct cleaning services; Consultancy relating to the installation, maintenance and repair of heating, ventilation and air conditioning (HVAC) systems; Installation, maintenance and repair of heating, ventilation and air conditioning (HVAC) equipment and systems; Installation, maintenance and repair of heating, ventilation, air-conditioning and refrigeration (HVAC/R) equipment and systems

'air':1,17,29,43 'air-condit':42 'clean':3 'condit':18,30,44 'consult':5 'duct':2 'equip':32,48 'heat':14,26,40 'hvac':19,31 'hvac/r':47 'instal':9,21,35 'mainten':10,22,36 'refriger':46 'relat':6 'repair':12,24,38 'servic':4 'system':20,34,50 'ventil':15,27,41

NCT PLUMBING

Owner

Goods & Services