Business Details
50+ Years
experience
Emergency
services
Your Trusted Partner for HVAC Solutions in New Jersey
Founded in 1946, De Sesa Engineering has established itself as a trusted leader in commercial and industrial HVAC solutions across New Jersey. Our team of over 40 full-time employees combines decades of experience with advanced technical training to deliver comprehensive design, installation, and maintenance services. Our in-house engineering department, staffed by licensed professionals, ensures precision in every project, from small renovations to large-scale systems exceeding 500,000 square feet. We maintain a fleet of fully equipped service vehicles and offer 24/7 emergency response to minimize downtime for our clients. Our technicians complete rigorous five-year apprenticeships and annual specialized training, including Carrier and Honeywell certifications, to stay ahead of industry advancements.With a 15,000-square-foot facility in Livingston, NJ, we provide centralized coordination for design, procurement, and equipment storage. Our commitment to education and hands-on experience enables us to deliver reliable, code-compliant solutions tailored to each client's unique requirements. We specialize in energy management systems that reduce operating costs while maintaining optimal climate control. Our personalized service contracts and on-site supervision ensure long-term system performance and customer satisfaction. For over 75 years, we have served premier builder/owners in New Jersey, earning a reputation for technical excellence and operational integrity.
Services
HVAC Design/Build
Commercial HVAC Service
Controls Installation
Emergency Repairs
Energy Management Systems
Details
- Year established: 1946
Highlights and features
- We have over 75 years of experience in commercial HVAC systems.
- Our team includes licensed engineers and Carrier/Honeywell-certified technicians.
- We offer 24/7 emergency service with a staffed fleet of service vehicles.
- Our personalized maintenance contracts are tailored to specific facility needs.
- We provide energy management systems that reduce operating costs by up to 30%.
Services
HVAC Design/Build
Our licensed engineers create customized HVAC systems for new construction and renovations. We handle projects from 5,000 to 500,000+ square feet using traditional methods and energy-efficient technologies. Clients receive comprehensive climate control solutions that meet building codes and operational requirements while optimizing long-term performance.
Commercial HVAC Service
We provide preventive maintenance and emergency repairs for all commercial HVAC equipment. Our certified technicians complete five-year apprenticeships and annual training updates to ensure technical proficiency. Services include system diagnostics, component replacement, and performance optimization for offices, hospitals, and industrial facilities across New Jersey.
Controls Installation
Our in-house controls division specializes in Carrier Comfort Network and Honeywell systems. We install and service direct digital controls that improve energy efficiency and system responsiveness. These computer-managed solutions reduce operating costs while providing centralized monitoring and adjustment capabilities for commercial buildings.
Emergency Repairs
We offer 24-hour emergency HVAC repair services with rapid response times. A fleet of fully equipped vehicles and on-call technicians ensure prompt resolution of system failures. Our team handles urgent repairs for commercial and industrial clients, minimizing downtime and restoring climate control within hours.
Energy Management Systems
Our energy management systems combine Carrier/Honeywell controls with customized programming to reduce energy consumption. These solutions lower utility costs by up to 30% while maintaining optimal indoor conditions. We retrofit existing systems and integrate new technologies to maximize efficiency for businesses in New Jersey.
People
Michael DiDomenico
President and CEO
With over 60 years in the HVAC industry, Michael holds PE licenses in NJ and PA. He oversees design-build projects and contract negotiations, leveraging his MS in Mechanical Engineering from NJIT to deliver technical excellence and client-focused solutions.
Joseph Capozza
Vice President, Engineering
A 40-year veteran of DeSesa, Joseph specializes in HVAC system design. His technical certifications and project management expertise ensure innovative engineering solutions that meet evolving industry standards and client specifications.
Ralph DiDomenico
Comptroller
Managing financial operations since 1994, Ralph holds a BS in Business Administration from the University of Richmond. He oversees accounting systems and financial strategy, ensuring operational efficiency and fiscal responsibility across all company departments.
Tony Cuntrera
Service Manager
With 30+ years of field experience, Tony leads our service team. He progressed from mechanic to manager, developing expertise in system diagnostics and repair protocols that ensure rapid, reliable HVAC maintenance for commercial clients.
Questions
What HVAC services do you offer for commercial clients?
We provide full-service HVAC solutions including system design, installation, preventive maintenance, emergency repairs, and energy management systems for commercial and industrial facilities.
Do you offer 24/7 emergency HVAC service?
Yes, our service department operates 24 hours a day, seven days a week with a staffed fleet ready to respond to urgent repair needs across New Jersey.
How do your energy management systems reduce costs?
Our Carrier and Honeywell control systems optimize HVAC performance, reducing energy consumption by up to 30% through smart scheduling, load management, and real-time monitoring.
What areas do you serve?
We primarily serve commercial clients throughout New Jersey, including Newark, Livingston, and surrounding metropolitan areas for both new installations and service contracts.
Can you service older HVAC systems?
Yes, our technicians maintain and retrofit systems of all ages, combining traditional methods with modern upgrades to improve efficiency and extend equipment lifespan.
How do I request service or get a quote?
Contact us at 973-597-0070 or visit our Livingston facility to discuss your HVAC needs. Our team provides personalized service contracts and project estimates tailored to your facility.
