John

John

John

Service Technician

41 Reviews

Gas Furnace Maintenance in Redford, MI 48240

“First time using this company. Will use them again. John was on time, conscientious about keeping my house clean, and explained to me what he was doing and why he was doing it. Top Notch!”

- David B.

Gas Furnace Maintenance in Troy, MI 48084

“Last week, John G. gave us our Fall Heating Tune-up. Very thorough, very pleasant and Extremely Informative. All of our interactions with Harriman Associates have been good, but John G. was the best, so far. Thanks!”

- Richard N.

Gas Furnace Maintenance in Westland, MI 48185

“John was great and provided some very helpful advise with furnace filter and humidifier.”

- Duane M.

Gas Furnace Repair in Novi, MI 48375

“John G came to my house this weekend because my furnace would not come on. He was very professional and courteous and made the necessary fixes quickly.”

- Lynda R.

Gas Furnace Maintenance in Novi, MI 48390

“John Gnass proved to be thorough and competent. He remained pleasant, helpful, professional. I appreciate his attention to detail and his patient explanations of findings and recommendations. Harriman is a better company with representation like John on their team!
I am grateful for the furnace cleaning and being treated with so much respect!”

- Sue H.

Gas Furnace Replacement in Detroit, MI 48210-2007

“John G. was very professional, courteous, knowledgeable, and especially efficient! He brought my very old furnace back to life! I was very impressed with his work! I’m very satisfied with the work he did! Thank you so much!”

- Randy U.

Air Conditioner Repair in Plymouth, MI 48170

“John G was timely, courteous, and fixed my problem in short order.”

- Douglas S.

Air Conditioner Repair in Novi, MI 48377

“John G is a wonderful repairman with a great personality and I will call Harriman’s in the future when I need ant more repairs.”

- Susan A.

Thermostat Repair in Redford, MI 48239

“Great guy great personality It’s very knowledgeable Answer all my questions All service industries should have a guy like John G”

- Tom T.

Gas Furnace Maintenance in Farmington Hills, MI 48334

“The technicians arrived in a timely manner. John G and Junior where very professional and knowledgeable. They answered all my questions and shared a few tips and information that will be useful in the future. They where diligent in their work. They cleaned up and left the furnace and air conditioner, cleaner and working much better than how they found the units. I was impressed with how focused and considerate they where. It is not uncommon to get good service but to be fortunate to get the efficient and dedicated service that John and Junior demonstrated was exceptional. Thank you guys and I will be using you in the future. I will be passing on recommendations to others. Thank you for your hard work and knowledge.”

- Debbie M.
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Call us at 734-271-6200!