Merrimack, NH Is In Our Service Area! What can we help you with? Mitsubishi Ductless Systems Mitsubishi Ductless Systems Custom Climates is top-rated in New Hampshire for Mitsubishi Ductless installations and repairs. Read More Indoor Air Quality Solutions Indoor Air Quality Solutions The best indoor air quality solutions available. Read More Heating and Cooling Repairs Heating and Cooling Repairs Custom Climates is top-rated in New Hampshire for Mitsubishi Ductless installations and repairs. Read More Heating System Installations Heating System Installations Custom Climates offers quality brands for new or replacement installations for heating systems. Read More Air Condition Installations Air Conditioning System Installations The best indoor air quality solutions available. Read More Water Heater Installations Water Heater Installations Custom Climates offers a great selection of water heaters. Read More HVAC Maintenance HVAC Maintenance Custom Climates offers many customizable maintenance plans and we service all types and brands. Read More Our Company Our Company The Custom Climates story. Read More Ductless Heat Pumps Ductless Heat Pumps Custom Climates is an Elite Diamond Dealer and one of the fastest growing Mitsubishi dealers in NH. Read More