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39 Years
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Emergency
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Trusted Mechanical Contractors in New York & New Jersey
Armistead Mechanical has been a trusted leader in mechanical construction and contracting for over 100 years, serving industrial and commercial clients across the New York/New Jersey region. Founded in 1987 as Armistead Mechanical, Inc., our legacy of excellence traces back to 1919 when Robert A. Armistead established a residential plumbing business that evolved into a premier mechanical contracting firm. Our expertise spans industrial and process piping, high-purity orbital welding, HVAC systems, design/build assist methodologies, and advanced technologies like VDC and 3D coordination. With three strategically located offices in Waldwick, NJ; Hamilton, NJ; and Newburgh, NY, we deliver tailored solutions to meet the complex demands of commercial, educational, healthcare, pharmaceutical, and industrial sectors. Our commitment to innovation is matched by our dedication to safety, evidenced by our zero-tolerance policy for unsafe practices and recognition through numerous industry safety awards.

Our team of highly skilled professionals, including OSHA-certified personnel and journeyman pipefitters trained through rigorous five-year apprenticeships, ensures every project meets exacting standards. We specialize in navigating sector-specific regulations to guarantee compliance and quality, supported by state-of-the-art facilities totaling nearly 50,000 square feet. As an industry innovator under Kevin Armistead's leadership, we combine century-old expertise with cutting-edge technologies to deliver projects on time, within budget, and to the highest safety standards. Our corporate identity reflects a relentless focus on exceeding client expectations through reliable service, technical excellence, and continuous improvement. This enduring commitment has solidified our reputation as one of the tri-state area's most successful mechanical contractors and largest employers of skilled tradespeople.
Services
Industrial Piping HVAC Contracting Design/Build Assist Prefabrication High Purity Welding
Details
  • Year established: 1987
Highlights and features
  • We offer 100+ years of combined mechanical contracting expertise in NY/NJ markets
  • Our team utilizes VDC and 3D coordination technologies for precision construction
  • We maintain OSHA-certified safety programs with multiple industry safety awards
  • Our skilled workforce includes journeyman pipefitters trained through 5-year UA apprenticeships
  • We serve 8+ specialized industries including pharmaceutical, healthcare, and manufacturing
What people say
Technical expertise Safety record Reliable delivery Skilled workforce Innovative solutions
Services
Industrial Piping
Our industrial piping solutions deliver precision-engineered systems for manufacturing, pharmaceutical, and chemical processing facilities. With expertise in high-purity orbital welding and complex system design, we ensure compliance with ASME B31.3 and other industry standards. Our prefabrication capabilities reduce field installation time while maintaining strict quality controls.
HVAC Contracting
We design and install commercial HVAC systems optimized for energy efficiency and environmental control. Our capabilities include VAV systems, chilled water loops, and specialized ventilation for healthcare and laboratory environments. From initial design to commissioning, we ensure systems meet ASHRAE standards and operational requirements.
Design/Build Assist
Our collaborative design/build approach integrates mechanical systems during project planning phases. Using BIM and 3D coordination tools, we identify conflicts early and optimize system layouts. This methodology reduces change orders and accelerates project timelines while maintaining technical accuracy.
Prefabrication
Our prefabrication services produce precision-assembled mechanical modules in controlled shop environments. This approach improves quality consistency, reduces field labor requirements, and accelerates project schedules. We maintain dedicated fabrication facilities totaling 50,000 square feet with advanced welding and testing capabilities.
High Purity Welding
We specialize in high-purity orbital welding for critical applications in pharmaceutical, biotech, and semiconductor industries. Our certified welders meet ASME Section IX and AWS D17.1 standards, with documentation traceability for every weld. We provide full system testing and validation for process piping integrity.
People
Kevin Armistead
President
Kevin Armistead leads the company with over 30 years of mechanical contracting experience, continuing the family legacy established in 1919. He oversees strategic operations while maintaining active involvement in client relationships and project execution.
Questions
What industries do you specialize in?
We serve commercial, educational, healthcare, pharmaceutical, biotech, food & beverage, industrial power, and water/wastewater sectors with specialized mechanical solutions.
Do you offer emergency services?
Yes, we provide 24/7 emergency mechanical services with rapid response teams available across our NY/NJ service area.
Are you OSHA certified?
All field personnel maintain OSHA 10/30 certifications, and we have an on-staff OSHA-authorized safety trainer for specialized safety programs.
How do you handle project coordination?
We use VDC and 3D coordination tools during preconstruction to identify conflicts, optimize layouts, and ensure seamless integration with other trades.
What safety awards have you won?
We've received multiple MCAA Safety Excellence Awards, ConocoPhillips Safety Excellence Awards, and Northeastern Subcontractors Association Gold Awards since 2005.
Do you have fabrication capabilities?
Yes, we operate 50,000 sq ft of fabrication facilities with specialized equipment for pipe spooling, welding, and system preassembly.
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