Heat exchanger and RAC (rooftop air conditioning) cooler installations make up roughly half of RMG's yearly business — and it shows. We've completed thousands of these projects, wiring the disconnects, control circuits, and power feeds that keep cooling equipment running on commercial and industrial rooftops across Houston.
From a single rooftop unit to a multi-building cooling retrofit, our crews handle disconnect installation, conduit runs, control wiring, and power hookups for heat exchangers and RAC coolers of every size. We coordinate closely with mechanical contractors and equipment manufacturers so the electrical side is ready the moment the unit is set.






