Customized HVAC Maintenance Agreements Tailored To Your Company’s Unique Needs
Donnelly Mechanical provides customized HVAC preventive maintenance agreements for a distinguished clientele including many of New York City’s prestigious buildings, institutions and tenants. Our goal is to ensure peak operating efficiency, minimize equipment downtime and eliminate the need for repeat service calls.
Our dedicated maintenance staff has the experience you can count on when you need to replace your HVAC vendor. During the transition process, our team familiarizes themselves with your facilities’ entire HVAC system. At the first maintenance inspection, we conduct a comprehensive analysis of all existing equipment and provide proactive solutions to avoid major failures and mitigate risk.
Commercial Preventive Maintenance not only extends the life of your equipment, but saves you money, giving you a better return on your investment. Performing regular maintenance on your Commercial HVAC system also increases energy efficiency.We understand how important it is to manage your budget, and that’s why we’ve been serving clients for over 30 years as their trusted provider for Commercial HVAC Preventive Maintenance in New York City.

The Donnelly Difference

Comprehensive Assessment of Existing Equipment

24/7 Emergency HVAC Repair Service and Support

Unique NYC Zoning System To Ensure Prompt Response

100+ Vehicles and 30+ Stationary Technicians

Account-Dedicated Technicians

Online Client Portal to Place Service Requests

Contract Transition Team

Priority Support

Quality Control
Watch Here to Learn More About Our Preventive Maintenance Offering
Benefits of Commercial HVAC Preventive Maintenance

Reduced Operating Costs
Routine maintenance will reduce your operating costs by keeping your system running smoothly, increasing energy efficiency, and reducing mechanical breakdowns and service costs.
Proactive
An HVAC maintenance agreement means performing routine maintenance and being proactive to help mitigate any potential issues your system might face before it happens.