Hoerner Heating & Plumbing

My Navien tankless water heater was putting out lukewarm water. I searched the HomeStars for a Navien certified service company and picked Hoerner based on their excellent past ratings. The Hoerner service tech showed up within 48 hours. He was knowledgeable, helpful and courteous. He assessed the heater and made a number of suggestions on improving the installation which I agreed to. He sent me a written quotation on the improvements that I approved before he started work, which I thought was extremely professional. When he completed the work the flow through my heater had increased from 1 gallon per minute to 3-1/2 gallons per minute. I got very hot water from the taps for the first time in months. And my central heating, which uses water heated by the Navien, is toastier than it has been all year.