Our genius-plumbers are certified to mount a range of Water Heater systems, from various brands to domestic or commercial. Setting up a water heater costs $703 and also $1,750+, or an average of $1,000+, consisting of the unit and also labor. Tankless heating units cost concerning $900 to $3,500. Water heaters cost $350 to $3,000+ for the unit alone while plumbing labor runs $40 to $200 per hour. The National Standard is $1,150. The common Range: $700 - $1,680. Reduced End - Luxury: $337 - $9,890.