Business Details
50+ Years
experience
Emergency
services
Expert Mechanical Services in St. Paul, MN
Founded in 1972, Nasseff Mechanical Contractors has built a legacy of excellence in mechanical services through unwavering commitment to customer satisfaction. Our core values of integrity, quality craftsmanship, and timely response guide every project, supported by a team of certified professionals with expertise in HVAC, plumbing, fire protection, and industrial piping. We serve diverse sectors including healthcare, education, and industrial manufacturing, offering customized solutions that prioritize operational efficiency and long-term reliability. With state-of-the-art equipment and adherence to NFPA codes, we ensure safety and compliance while minimizing downtime for our clients.Our leadership team fosters a culture of continuous learning and collaboration, reflected in our 24/7 emergency services and proactive preventive maintenance programs. Recognized for innovation since the Pillsbury A-Mill project, we maintain partnerships with institutions like the University of Minnesota through rigorous testing and design-build capabilities. Backed by decades of experience and local trade school partnerships, we deliver tailored mechanical solutions that exceed expectations across the Twin Cities and beyond.
Services
HVAC Installation
Plumbing Services
Fire Protection Systems
Preventive Maintenance
Industrial Piping
Emergency Repairs
Design Build
Steam Systems
Process Piping
Backflow Testing
Details
- Year established: 1972
Highlights and features
- Certified technicians with Minnesota Master Plumber and Steam Fitter licenses
- 24/7 emergency response for critical mechanical failures
- Proven preventive maintenance programs extending equipment lifespan
- Specialized experience in healthcare facility systems
- State-of-the-art diagnostic equipment for fire pump alignment and testing
Associations and certifications
- National Fire Protection Association (NFPA)
Services
HVAC Systems
Customized HVAC solutions for installation, repair, and retrofitting of heating, ventilation, and air conditioning systems. Our certified technicians utilize advanced technology to optimize energy efficiency while maintaining comfort in commercial and residential settings. Specializing in computer room cooling, medical lab applications, and industrial climate control since 1972.
Plumbing Services
Comprehensive plumbing solutions including water distribution, sewer systems, and specialty gas piping. Our licensed plumbers handle complex installations and repairs for commercial, industrial, and residential properties. Services range from water heater replacement to high-pressure line diagnostics using camera inspections and electronic leak detection equipment.
Fire Protection
Full-service fire protection including system design, installation, and maintenance of sprinkler systems, fire pumps, and suppression equipment. We conduct NFPA-compliant testing using advanced diagnostic tools like The Hose Monster testing system. Our certified technicians ensure code compliance for wet, dry, and pre-action fire protection systems in commercial facilities.
Preventive Maintenance
Proactive maintenance programs to extend equipment lifespan and prevent emergencies. Our technicians perform routine inspections, system diagnostics, and budget planning for equipment replacement. This includes 24/7 emergency response and scheduled maintenance for HVAC, plumbing, and fire protection systems across multiple industries.
Industrial Piping
Specialized piping solutions for industrial applications including chemical conveyance, steam systems, and food processing lines. Our certified welders and fitters handle complex installations and modifications using diverse materials like stainless steel, copper, and plastic. Services include system design, replacement, and efficiency optimization for manufacturing and processing facilities.
People
Mickey Nasseff
Founder
Founded the company in 1972 with a commitment to quality craftsmanship. Established industry standards through innovative solutions before tragically passing in 2013. Legacy continues through the company's core values.
Jeff Ulrich
President
Led the company since 2013, maintaining Nasseff's founding principles while expanding service capabilities. Directed growth into healthcare mechanical systems and major projects like Pillsbury A-Mill.
Questions
What industries do you serve?
We serve healthcare facilities, educational institutions, industrial manufacturing plants, hospitality venues, and commercial offices across the Twin Cities metro area.
Do you offer emergency services?
Yes, our 24/7 emergency response team provides immediate assistance for critical mechanical failures with manager callbacks within 15 minutes.
Are your technicians certified?
Our team holds multiple certifications including Master Plumber licenses, NFPA-compliant fire protection credentials, and specialized equipment manufacturer certifications.
What preventive maintenance benefits do you offer?
Our PM programs identify potential issues before failures occur, provide budget planning for equipment replacement, and extend system lifespans through regular professional servicing.
Can you handle large-scale projects?
Yes, we've completed major projects like the Pillsbury A-Mill renovation and maintain contracts with 12 Twin Cities hospitals for mechanical systems.
