How long should it typically take to install a whole house humidifier? 1-2 hours 33% 2-3 hours 22% 3-4 hours 11% 4-6 hours 22% Not sure 11% Get Free Quotes Today! Question: How long should it typically take to install a whole house humidifier? Top Answer (33% of 9 votes): 1-2 hours. Answer: 2-3 hours Explanation: It's not a hard job it just takes time Arizona's Best Heating & AC, Inc. Answer: 4-6 hours Explanation: To be done properly, it just takes that long. APSCO Professional Service Company Answer: 1-2 hours Explanation: Si es un humidificador portatil residencial, puede ser instalado en ese tiempo 1-2 hrs CH Argus Get Free Quotes From Local Pros ProMatcher Answer: Not sure Explanation: . Alpha Cleaning Solutions, LLC Get Free Quotes Today! Find Local Pros Free Whole House Humidifier Installation Cost Estimates Related Questions How Much Does It Cost to Replace Humidifier on Furnace? Can I install a whole house humidifier without a forced air system?Top answer: In some cases Do I need a permit to install a central humidifier?Top answer: In some cases Who can install a whole house humidifier? Can I install a whole house humidifier if I have a heat pump?Top answer: In most cases