Quality & Service

Stefan Mechanical provides the most responsive service in the North Georgia area. Our expertise and solid well-built systems will keep you from costly repairs. Should you need a repair to an existing system and you are frustrated with your current technician, we can help! We can service or install any brand of system, however we highly recommend certain quality brands shown below.

50 Years of Experience

Based in Flowery Branch, Stefan Mechanical services the entire state Georgia. 

  • Licensed & Insured
  • Combined 50 years of experience
  • BPI Certified
  • Can service or install any brand

HVAC Services


New Installations




Equipment Replacement


Computer Airflow Design

View a list of all services we provide:

Air & Water Systems Balancing

Air Duct Cleaning

Attic Insulation Installation

Attic Ventilation Installation

Basement Insulation Installation

Boiler Installation

Boiler Repair & Maintenance

Central Air Conditioning Installation

Central Air Conditioning Maintenance

Central Air Conditioning Repair

Conventional Electric Water Heater Installation

Conventional Gas Water Heater Installation

Conventional Water Heater Installation

Crawl Space Encapsulation

Crawl Space Insulation Installation

Crawl Space Ventilation Installation

Dryer Vent Cleaning

Dryer Vent Installation

Duct Insulation & Sealing

Ductwork Installation

Exhaust Fan Installation

Furnace Installation

Furnace Maintenance

Furnace Repair

Gas Furnace Installation

Geothermal Heat Pump Installation

Geothermal Heat Pump Repair

HVAC Inspection

Heat Pump Installation

Heat Pump Repair

Heating Installation

Heating and Cooling

Heating and Cooling Installation

Heating and Cooling Maintenance

Heating and Cooling Repair

Insulation Installation

Oil Furnace Installation

Oil to Gas Furnace Conversion

Radiant Heating Installation

Solar Water Heater Installation


Tankless Electric Water Heater Installation

Tankless Gas Water Heater Installation

Tankless Water Heater Installation

Unconditioned Insulation Installation

Ventilation System Inspection

Ventilation Systems Cleaning

Ventilation and Ductwork

Ventilation and Ductwork Installation

Ventilation and Ductwork Maintenance

Ventilation and Ductwork Repair

Water Heater Inspection

Water Heater Installation

Water Heater Repair

Water Heaters

About Us

At Stefan Mechanical, we pride our business on our experience and professional service as we continue to build long lasting relationships with our customers. With our wide range of services, we are prepared to meet any situation at hand. From an emergency call to a scheduled installation, Stefan Mechanical will be there to take care of the problem with complete satisfaction.

The Best Equipment

Enjoy true peace of mind with expert responsive service, and quality systems.


“Stefan is the best! His services are always performed with such skill and accuracy. He also always explains what he is doing in great detail, so there is never thought of not understanding. He is very smart in his skill and very honest in his pricing. Thank you Stefan for always being their when we call.”
“Called Stefan Friday afternoon being told by many others it would be well into next week before they could come out. He asked what time we would be home from work and he would be there that night…. and he was! Had us up and going in no time and my 5 year old unit cooled better than when another company put it in to start with. He has every modern tool for hvac on his truck which makes it easier to fix on the fly. Highly recommend calling him.

Get a Free Quote

Call or email us and we will get you taken care of professionally!