Réfrigération Montérégie Plus is an expert in shopping centre and commercial building roof-top HVAC, Trane tracer summit control, VAV systems, walk-in coolers and freezers, refrigerated counters, display fridges, residential air conditioning and heat pumps, system design and duct work. Don't see what you need done listed here? Ask us if we can do it! We offer 24-hour emergency service and estimates are always free.