Is this your business?
Claim your listing to verify your info and earn a verified badge.
Claim This BusinessRieger Mechanical Heating & Cooling has earned a perfect 5-star rating across 294 reviews since establishing its presence in the Acworth, Georgia area. Owner Paul leads a team that specializes in residential HVAC installation, replacement, and maintenance, serving homeowners throughout Acworth, Kennesaw, and the broader northwest metro Atlanta region. The company maintains extended operating hours six days a week, with availability beginning at 7 AM Monday through Friday and 8 AM on weekends, accommodating schedules for working households who need service calls before or after typical business hours.
What distinguishes Rieger Mechanical is the depth of system design expertise demonstrated across multiple review accounts. Customer Thomas Hilton noted that the team engineered completely different HVAC configurations for distinct zones within his custom-built residence, achieving what he describes as phenomenal efficiency. Owner Paul personally guided homeowner Brandon Russett through the process of replacing and rerouting ductwork alongside a new plenum installation, an involved project that resolved years of uneven temperature distribution. This combination of hands-on owner involvement and genuine engineering problem-solving sets the company apart from contractors who default to standardized solutions.
Specific technicians have earned recognition by name. Thomas impressed customer Camille Kirk by arriving early to accommodate her work schedule for a furnace tune-up, working quickly while explaining system operation in accessible terms. Another technician helping Sean Jordan took deliberate time during a maintenance appointment to walk through each inspection checkpoint and offered performance optimization tips before confirming everything operated smoothly. Reviewers consistently describe the team as honest and professional, with Brandon Russett specifically calling out owner Paul as a stand-up guy who explains everything upfront and clearly takes pride in his work.
All seven visible reviews award 5 stars, with no negative ratings recorded. Three reviewers specifically name technicians Thomas or Paul while describing service scenarios ranging from emergency ductwork replacement to scheduled preventive maintenance. Common praise themes include honest pricing communication, efficient work completion, and clear explanations that help homeowners understand their systems.
| Sunday | 8 AM–5 PM |
| Monday | 7 AM–6 PM |
| Tuesday | 7 AM–6 PM |
| Wednesday | 7 AM–6 PM |
| ThursdayToday | 7 AM–6 PM |
| Friday | 7 AM–6 PM |
| Saturday | 8 AM–5 PM |
New heating and cooling system installation for new construction and full replacements, including custom designs for non-standard home layouts.
Assessment and modification of existing duct configurations to eliminate airflow imbalances and improve temperature consistency throughout the home.
Exchange of damaged or undersized plenums that connect HVAC units to ductwork, often resolving efficiency losses and airflow restrictions.
Preventive maintenance visits including inspection, cleaning, and calibration to extend equipment lifespan and maintain efficiency.
Troubleshooting and repair for heating and cooling systems, with transparent explanation of identified issues and recommended solutions.
Same-day response for urgent heating or cooling failures, with availability six days per week beginning early morning hours.