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Business Details
37 Years
experience
Expert HVAC Solutions in Woburn, MA
G & N Engineering has been a family-owned HVAC engineering company serving Boston and Greater Boston since 1989. Our team of licensed, insured professionals stays current with the latest advancements in heating, ventilation, and air conditioning technology. We specialize in designing customized HVAC systems for residential, commercial, and industrial buildings, ensuring optimal efficiency and performance. With over 25 years of experience, we combine technical expertise with a commitment to client satisfaction. Our services include duct installation, system maintenance, and energy-efficient solutions tailored to individual needs.

We pride ourselves on delivering reliable, code-compliant installations and proactive customer support. Our leadership team brings decades of combined industry knowledge, including specialized training from institutions like the Peterson School for HVAC. We actively participate in energy-saving programs like Mass Save to help clients reduce costs and environmental impact. Our dedication to quality craftsmanship and ongoing education ensures we remain at the forefront of HVAC innovation. Whether addressing emergency repairs or designing new systems, we prioritize transparency, professionalism, and long-term client relationships.
Services
Heating Systems Air Conditioning Ventilation HVAC Maintenance Commercial Projects
Details
  • Year established: 1989
Highlights and features
  • We offer 30+ years of local HVAC engineering expertise
  • Our team holds active licenses in HVAC, refrigeration, and sheet metal work
  • We implement cutting-edge technology for energy-efficient systems
  • Our Mass Save accreditation qualifies clients for energy rebates
  • We provide proactive maintenance programs to extend system lifespan
Associations and certifications
  • Mass Save Partner
Services
Heating Systems
We design and install forced hot air, heat pump, and hydro air heating systems tailored to residential and commercial needs. Our engineers optimize system efficiency through proper sizing and ductwork design. We specialize in integrating modern controls for improved energy performance.
Air Conditioning
Our AC solutions include central air and ductless systems with proper SEER-rated equipment selection. We ensure optimal cooling distribution through precise duct design and airflow analysis. We offer energy-saving recommendations for reduced utility costs.
Ventilation
We install mechanical ventilation systems for bathrooms, dryers, and whole-house fresh air exchange. Our designs meet ASHRAE standards for indoor air quality while maintaining energy efficiency. We address moisture control and contaminant removal in residential and commercial spaces.
HVAC Maintenance
Our preventive maintenance programs include seasonal system inspections, filter replacements, and performance optimizations. We identify potential issues before breakdowns occur, extending equipment lifespan. We provide detailed reports and maintenance recommendations for peak efficiency.
Commercial Projects
We engineer large-scale HVAC systems for hotels, condominiums, and commercial buildings. Our services include custom ductwork design, rooftop unit installation, and code-compliant fire damper integration. We coordinate with architects for seamless system implementation in new constructions and renovations.
People
Norbert Wong
Owner/C.E.O
Founder of G & N Engineering with 30+ years in HVAC design. Holds mechanical engineering degree from Wentworth Institute and HVAC licensing. Oversees all engineering projects and quality control.
Tyler Wong
Project Manager
15+ years HVAC experience with dual degrees in HVAC technology and psychology. Manages project timelines and client communications. Implements innovative system designs for complex installations.
Glen Cai
Head Technician
Lead installer since 2003 with licenses in sheet metal and refrigeration. Oversees field operations and technical training. Specializes in precision ductwork fabrication and system commissioning.
Questions
What HVAC services do you offer?
We provide complete HVAC solutions including heating systems, air conditioning, ventilation, maintenance, and commercial project design.
Are you hiring for any positions?
Yes, we're currently seeking experienced duct installers for immediate start positions. Contact us via email for details.
Do you participate in energy rebate programs?
As a Mass Save partner, we help clients qualify for HVAC energy efficiency rebates and incentives.
Can you evaluate existing ductwork?
Yes, we offer duct system evaluations to identify leaks and efficiency improvements for better heating performance.
What maintenance schedule do you recommend?
We recommend bi-annual tune-ups before heating and cooling seasons to maintain system efficiency and longevity.