★ ★ ★ ★ ★
"Very polite and fast. in and out in less than an hour."
— Edgar T.
(Google Review)
★ ★ ★ ★ ★
"Always a tremendous experience with Hartman Brothers. I have used them for more than 25 years and gotten to know their people more like friends/family than vendors... because that's exactly how they treat their customers! Always a pleasure to deal with and their work is exceptional as a bonus. Would give them 6 Stars if it was an option."
— Scott S.
(Google Review)
★ ★ ★ ★ ★
"The staff is wonderful and the technicians are "top notch" at Hartman Brothers! I have used this company for the past 25+ years for all my regular maintenance checkups and repairs. I have never been disappointed with the quality of work by the Hartman Brothers service technicians. My most recent service tech was "Josh." Josh was very courteous and professional. I will continue to use Hartman Brothers for all my HVAC needs for years to come!"
— Catherine D.
(Google Review)
★ ★ ★ ★
"Honest people and good service. Lime anything you don’t know how to do yourself, expect to pay the premium for someone that took the time to learn how:)."
— David N.
(Google Review)
★ ★ ★ ★ ★
"My experience was excellent. The furnace runs very quietly and before when it would come on and I was sleeping it came on so loud it would wake me up. I'm so pleased with Hartman Brothers."
— Carol Perkins
(Google Review)
★ ★ ★ ★ ★
"I had an excellent experience with Hartman Brothers from start to finish. After dealing with an incomplete and frustrating repair from Peterman Brothers, Hartman Brothers was a breath of fresh air. Their technician spent several hours thoroughly troubleshooting my tankless water heater, walking through the issues clearly and professionally. There was no upselling, no pressure, and no shortcuts—just honest, methodical work.
Based on their findings, I chose to upgrade to a new tankless water heater, and the decision was entirely mine. At no point did they try to push a sale or steer me toward anything unnecessary. The installation was clean, the communication was excellent, and the entire process felt transparent and trustworthy.
It’s clear why they have such a strong reputation in the Fort Wayne area. Their professionalism, responsiveness, and genuine customer‑first approach really stand out. I’m very happy with the new system and with the service I received.
"
— Cory T.
(Google Review)
★ ★ ★ ★ ★
"Great communication throughout the process. Things were explained to me in terms that I could understand. Very fair and professional. I'd highly recommend Hartman Brothers to anyone!"
— Jared C.
(Google Review)
★ ★ ★ ★ ★
"The folks that work for Hartman are always the best! Very pleasant, respectful and very knowledgeable! Great experience with whoever comes!!!"
— Mary L
(Google Review)
Today's ductwork design principles correct thermal losses, pressure imbalances and other errors that waste energy. In the past, design and fabrication of ducts were done with the aim of minimizing costs. If you're looking to improve your home's efficiency and comfort, you should be aware of the principles of modern ductwork design below.
