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Business Details
50+ Years
experience
Emergency
services
Mechanical Contractors Since 1910
For over a century, Mollenberg Betz has stood as a cornerstone of mechanical contracting excellence in Western New York. Founded in 1910 as a machine shop, we have evolved into a third-generation family-owned enterprise delivering comprehensive solutions in HVAC, plumbing, refrigeration, and industrial systems. Our team of engineers, project managers, and certified technicians leverages cutting-edge technology and ASME-certified fabrication capabilities to serve diverse industries including petrochemical, food processing, and healthcare. With a safety-first culture and 75-150 skilled construction workers, we execute complex projects from concept to completion while maintaining our founders' commitment to integrity and innovation. As pioneers in clean oxygen service and high-pressure systems, we uphold rigorous standards through 18,000 square feet of advanced fabrication facilities.

Our 105-year legacy reflects enduring relationships with clients and employees, evidenced by multi-generational family teams and a loyal clientele. We combine 3-D CAD design proficiency with hands-on expertise to deliver cost-effective, energy-efficient solutions that exceed expectations across Western New York, Pennsylvania, and beyond. Our corporate values of accountability, communication, and execution ensure every project achieves the highest quality benchmarks. From emergency 24/7 service to comprehensive boiler maintenance, we remain Western New York's trusted partner for mission-critical mechanical systems through three generations of industry evolution.
Services
HVAC Systems Plumbing Services Refrigeration Systems Process Piping Boiler Maintenance Pre-Fabrication Panel Shop Sheet Metal Fabrication 24/7 Service Calls
Details
  • Year established: 1910
Highlights and features
  • We offer 105+ years of mechanical contracting expertise since 1910
  • Our ASME-certified fabrication shop meets rigorous industry standards
  • We provide 24/7 emergency service with 30+ technicians on call
  • Our multi-generational workforce ensures unmatched institutional knowledge
  • We maintain clean oxygen service certification and high-pressure testing capabilities
Associations and certifications
  • ASME
  • SMACNA
Services
HVAC Systems
Our in-house engineers design and install commercial HVAC systems with energy recovery and hydronic solutions. We offer spiral duct fabrication, 3-D CAD modeling, and 24/7 emergency service. Systems include steam, chilled water, and specialized ventilation for laboratories and industrial environments.
Refrigeration Systems
We handle ammonia, freon, and cryogenic refrigeration systems for food processing, pharmaceutical, and ice rink applications. Services include PSM compliance, temperature control from -100F to ambient, and skid package installations with detection systems and cryogenic piping.
Process Piping
Our certified welders install steam, condensate, compressed air, and process water systems in petrochemical and manufacturing facilities. Capabilities include ASME PP code piping, stainless/carbon steel alloys, and cleanroom-compliant tubing systems for biotech and pharmaceutical clients.
Boiler Maintenance
We service all major boiler brands with combustion testing, economizer installations, and steam trap analysis. Our technicians handle fuel savings assessments, control system upgrades, and annual inspections following manufacturer-specific protocols for Patterson-Kelley and Cleaver-Brooks equipment.
24/7 Service Calls
Questions
What areas does Mollenberg-Betz serve?
We serve Western New York including Buffalo, Rochester, Syracuse, and Western Pennsylvania with mechanical contracting services.
What industries do you specialize in?
We specialize in petrochemical, food/beverage processing, automotive, power generation, and healthcare facility HVAC systems.
Are you available for emergency service calls?
Yes, our 30+ technicians provide 24/7 emergency service and scheduled maintenance across our service regions.
What certifications does your team hold?
Our welders are ASME Section IX qualified with expertise in clean oxygen service, pressure testing up to 10,000 PSI.
How does your fabrication shop support projects?
Our 18,000 sq ft facility produces piping spools, skid packages, and custom sheet metal components with orbital welding capabilities.