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Trusted HVAC Contractors in Alpharetta, GA
1st Mechanical Services stands as a premier provider of commercial and industrial HVAC solutions, delivering expert service and maintenance for sophisticated heating, ventilation, and air conditioning systems. With a focus on Georgia and the broader Southeastern United States, we serve businesses and residents through comprehensive building systems surveys, identifying inefficiencies and implementing cost-saving measures to enhance operational performance. Our team combines over 100 years of collective HVAC experience with 24/7 emergency support, EPA-certified technicians, and a commitment to OEM specifications in preventative maintenance plans.

We specialize in total system replacements, cooling tower services, medical equipment chiller maintenance, and mold detection, ensuring reliability for critical infrastructure. Backed by partnerships with major manufacturers and a proven track record of customer satisfaction, we position ourselves as a trusted partner for HVAC needs ranging from routine maintenance to complex installations.
Services
HVAC Preventative Maintenance Facilities Maintenance Cooling Tower Services Medical Equipment Chiller Maintenance Mold Detection Services
Highlights and features
  • We offer 24/7 emergency HVAC service with rapid response times.
  • Our team provides free quotations for equipment and maintenance needs.
  • We service all major HVAC brands, including Carrier, Lennox, and Trane.
  • Affordable solutions tailored to client budgets and operational requirements.
  • Over 100 years of combined experience in commercial and industrial HVAC systems.
Associations and certifications
  • EPA Certified HVAC Technicians
What people say
Excellent service Knowledgeable team Go-to for repairs 24/7 availability
Services
HVAC Preventative Maintenance
Scheduled HVAC maintenance plans ensure optimal performance of commercial systems through OEM specifications. Our technicians extend equipment lifespan, reduce repair costs, and implement chemical treatments for cooling towers. We develop customized agreements defining service scope and frequency to meet client needs.
Cooling Tower Services
Comprehensive cooling tower maintenance addresses scaling, dirt buildup, and mechanical wear in harsh environments. Our 24/7 emergency repairs and preventive services ensure condenser water systems operate efficiently, preventing HVAC equipment downtime for commercial facilities.
Medical Equipment Chiller Maintenance
Specialized maintenance for MRI and CT scanner support chillers, including chilled water systems and filtration panels. We provide 24/7 service for mobile trailer MRIs and partner with manufacturers to support warranty claims, minimizing patient rescheduling risks.
Facilities Maintenance
Full-service HVAC repair and maintenance for rooftop units, boilers, chillers, and temperature controls. We service major brands like Carrier and Trane, offering chemical treatments, quarterly maintenance, and emergency repairs for commercial properties.
Mold Detection Services
HVAC-focused mold detection identifies contamination sources in ventilation systems. Our technicians integrate mold remediation with routine maintenance to improve indoor air quality and system efficiency for commercial buildings.
Questions
What HVAC services do you offer for commercial buildings?
We provide preventative maintenance, emergency repairs, cooling tower services, medical chiller maintenance, and mold detection for commercial HVAC systems.
Do you offer 24/7 emergency HVAC service?
Yes, our emergency hotline (888) 346-0792 provides immediate support for critical HVAC failures at any time.
Which areas do you serve?
We serve commercial clients throughout Georgia and the Southeastern United States.
Can you service specialized medical equipment chillers?
Yes, we maintain MRI and CT scanner support chillers, including mobile trailer systems, with 24/7 emergency availability.
What preventative maintenance options are available?
We offer customized maintenance plans using OEM specifications to extend equipment life and reduce repair costs for commercial HVAC systems.
Are your technicians certified?
Our team includes EPA-certified HVAC technicians with over 100 years of combined experience in commercial and industrial systems.
Reviews (1)
Tina Piekanski Godwin
Jun 21, 2017 Report
Trustworthy, Honest and Integrity! Scott Johnson did a great job fixing a leak in my A/C pipe, other big name company was ripping me off! Highly recommend 1st Mechanical.