1ST Mechanical Services, Inc.

1ST Mechanical Services operates as a commercial HVAC contractor based in Alpharetta, Georgia, maintaining a 3.7-star rating derived from seven client reviews. The company maintains round-the-clock availability throughout the week, serving the entire state of Georgia with a focus on sophisticated heating and cooling systems for commercial properties. Their service portfolio encompasses total HVAC system replacement, preventative maintenance contracts, and comprehensive building maintenance solutions. The business is located at 303 Curie Drive in Alpharetta and can be reached at (770) 346-0792 for standard service inquiries.

What distinguishes this contractor is their specialized expertise with complex commercial equipment including rooftop units, boilers, chillers, cooling towers, and exhaust systems. They offer medical equipment chiller maintenance, supporting chillers for MRI magnets and similar critical applications. The company provides an emergency hotline at (888) 346-0792 for immediate service needs, demonstrating their commitment to rapid response for commercial clients facing HVAC emergencies. Their approach includes building systems surveys designed to identify operating cost inefficiencies, recommending and implementing changes that can reduce expenses for building owners and managers.

Customer feedback reveals specific experiences with their team. Reviewers praised technicians Hunter and Edward who completed a multi-day office installation while being mindful of employees on calls and maintaining clean work areas daily. Another long-term client noted nearly two decades of reliable service from team members Emmet and Chase, describing them as knowledgeable and consistently providing excellent service. However, individual reviews documented concerns including aggressive driving behavior by a company driver and instances of misdiagnosis requiring follow-up visits from other service providers.