Business Details
Expert HVAC and Piping Solutions in Woburn, MA
C G Mechanical has built a reputation as a trusted general piping contractor with extensive expertise in industrial and commercial mechanical systems. Our team specializes in rapid mobilization for complex projects, delivering precision in HVAC installations, boiler systems, process piping, and specialty welding for industries ranging from chemical and food production to universities and government facilities. We coordinate a network of subcontractors to ensure seamless project execution, adhering to strict timelines and budgets while maintaining compliance with OSHA safety standards. With licenses including Massachusetts Master Pipefitter and Boston G-12 Fuel Oil Piping certifications, we combine technical proficiency with logistical efficiency.Our capabilities extend to custom steel fabrication, prefabricated piping systems, and on-site engineering support, enabling us to tackle projects without reliance on detailed plans. Backed by partnerships with material suppliers and a union workforce of certified welders, we provide scalable solutions tailored to client needs. Our commitment to quality is reflected in decades of successful projects for institutions like MIT, Harvard, and Veolia Energy. We prioritize transparency, technical excellence, and accountability, ensuring clients receive reliable, code-compliant mechanical systems. This dedication has solidified our position as a go-to contractor for demanding industrial piping challenges.
Services
HVAC Installations
Boiler Installations
Process Piping
Specialty Welding
Steel Fabrication
Prefabricated Piping
Hydraulic Piping
Control Piping
Power Plant Piping
Rigging Services
Highlights and features
- We specialize in rapid mobilization for complex mechanical projects.
- We coordinate comprehensive subcontractor networks for full-service project management.
- We hold Massachusetts Master Pipefitter and OSHA certification licenses.
- We provide engineering support without reliance on detailed plans.
- We maintain partnerships with specialty material suppliers for fast procurement.
What people say
Technical expertise
Timely completion
Problem-solving capability
Certified welders
Engineering support
Services
HVAC Installations
We design and install commercial HVAC systems including chillers, heat pumps, and cooling towers. Our team handles projects from initial layout to final commissioning, ensuring energy efficiency and code compliance. Systems integrate seamlessly with existing building infrastructure for optimal performance.
Process Piping
Our process piping solutions serve chemical, food production, and manufacturing facilities. We install systems for corrosive materials, high-pressure steam, and sanitary applications using stainless steel, PVC, and specialty alloys. All installations meet ASME B31.3 standards for safety and durability.
Specialty Welding
We provide certified welding for critical applications in monel, aluminum, chrome moly, and stainless steel. Our welders use advanced techniques including TIG, MIG, and flux-cored processes. X-ray and ultrasonic testing verify weld integrity for power plants and industrial facilities.
Steel Fabrication
Custom steel fabrication includes platforms, stairs, and support structures for mechanical equipment. Our shop produces precision components that reduce on-site installation time. All fabrication meets AWS D1.1 structural welding code requirements.
Prefabricated Piping
We assemble Permapipe and Victaulic systems off-site to accelerate project timelines. Prefabrication ensures quality control in controlled environments before field installation. This approach minimizes disruptions in operational facilities during system upgrades.
People
Dean Gilligan
President
Dean Gilligan leads C G Mechanical with 30+ years of experience in industrial piping systems. He oversees project execution and client relations, leveraging technical expertise in complex mechanical installations. Dean ensures operational compliance with safety and quality standards across all projects.
Questions
What industries do you serve?
We serve chemical, food production, healthcare, education, and energy sectors with specialized piping solutions.
Do you handle emergency repairs?
We prioritize scheduled projects but can mobilize crews for urgent mechanical system failures.
What welding certifications do you hold?
Our team holds ASME Section IX certifications for stainless steel, aluminum, and carbon steel welding.
Can you work without detailed plans?
Yes, our experienced team provides on-site layout services when detailed documentation isn't available.
Do you subcontract work?
We manage select subcontractors for specialized tasks while maintaining full project oversight.
What geographic areas cover?
We operate throughout Massachusetts with primary service areas in Boston, Woburn, and surrounding communities.