Donnelly Mechanical Corporation

Donnelly Mechanical Corporation Donnelly Mechanical is New York City’s premier provider of innovative commercial HVAC service, mainte With offices across the U.S.

Donnelly Mechanical is New York City’s premier provider of innovative commercial HVAC service, maintenance and construction. With over 30 years’ experience and 200+ employees, we serve New York City’s most prominent commercial organizations across a variety of sectors including data centers, healthcare facilities, Class-A office spaces and commercial real estate management firms. In August of 2018

, Donnelly Mechanical was acquired by ENGIE, a global energy and services group. The acquisition provided us access to a wide range of new resources including a much larger capital base. These resources have allowed us to offer a broader level of service beyond the typical scope of work including project funding and energy management solutions. In July of 2021, ENGIE announced the launch of a new global business line called EQUANS. EQUANS companies are leaders in mechanical and electrical construction, industrial and energy infrastructure, and building services across North America. The entities that make up EQUANS North America include a collaborative group of commercial infrastructure experts that support clients to optimize their energy use and efficiently run their facilities. and Canada, our organization offers a rare combination of wide territorial reach and proven local expertise.

Championships aren't built in a day.They're built through years of teamwork, trust, and showing up when it matters most....
06/18/2026

Championships aren't built in a day.

They're built through years of teamwork, trust, and showing up when it matters most.

After 53 years, the Knicks are champions again.
Go Knicks! 🏆🏀

Congratulations to Christian Cayambe, Jeron McInniss, Noe Martin, Fernando Santacruz, and Sacha Trammell on celebrating ...
06/18/2026

Congratulations to Christian Cayambe, Jeron McInniss, Noe Martin, Fernando Santacruz, and Sacha Trammell on celebrating 5 years with Donnelly Mechanical. 🎉

We are grateful for your hard work, dedication, and the role each of you plays in supporting our team, our projects, and the clients we serve.

Thank you for being part of the Donnelly team.

A closer look at one of our recent air handling unit retrofit projects for a Class A commercial building.At Donnelly Mec...
06/17/2026

A closer look at one of our recent air handling unit retrofit projects for a Class A commercial building.

At Donnelly Mechanical, we understand the planning, coordination, and attention to detail it takes to support high-performing commercial properties in New York City. This project reflects the work our team does to help building systems operate more efficiently, reliably, and comfortably.

Swipe through for a closer look at the equipment and details behind this retrofit.

Visit our website to learn more. https://tinyurl.com/ye27bwsp

Congratulations to Carlos Pena on celebrating 15 years with Donnelly Mechanical. 🎉Your dedication, experience, and commi...
06/13/2026

Congratulations to Carlos Pena on celebrating 15 years with Donnelly Mechanical. 🎉

Your dedication, experience, and commitment have made a lasting impact on our team and the work we do every day.

Thank you for being an important part of Donnelly’s continued growth and success.

Congratulations to Kevin Eastwood on his well-earned retirement! After joining Donnelly in 2018, Kevin has made a lastin...
06/12/2026

Congratulations to Kevin Eastwood on his well-earned retirement!

After joining Donnelly in 2018, Kevin has made a lasting impact on our warehouse and deliveries team, keeping things moving, supporting the field, and always getting the job done!

We’re truly honored that Kevin chose to finish out his career with us these past 8 years. Thank you for everything you’ve contributed to the Donnelly team. You will be missed!

Wishing you all the best in this next chapter. 👏

At Donnelly, hands-on training is part of how we invest in our people.Providing real-world learning opportunities helps ...
06/10/2026

At Donnelly, hands-on training is part of how we invest in our people.

Providing real-world learning opportunities helps our teams build practical skills, gain confidence, and grow in ways that support both individual development and long-term team success.

For more on our team, training, and work, visit our website. https://tinyurl.com/2rfavuva

A quick HVAC check-in can help building teams catch small issues early, improve comfort, and stay ahead of peak summer d...
06/08/2026

A quick HVAC check-in can help building teams catch small issues early, improve comfort, and stay ahead of peak summer demand.

Learn more on our website: https://tinyurl.com/3kk6wswd

For World Environment Day, we’re highlighting how smarter HVAC choices can support better building performance. Proper m...
06/05/2026

For World Environment Day, we’re highlighting how smarter HVAC choices can support better building performance.

Proper maintenance and system optimization can help reduce energy waste, improve comfort, and keep NYC buildings running more efficiently.

06/03/2026

June is National Safety Month, and for our team, safety is part of how we show up every day.

From proper PPE to pre-task planning and field awareness, safe work helps protect our team, our clients, and the buildings we serve. A successful job starts with a safe one.

This Memorial Day, we pause to remember and honor the men and women who gave their lives in service to our country. 🇺🇸 🤍
05/25/2026

This Memorial Day, we pause to remember and honor the men and women who gave their lives in service to our country. 🇺🇸 🤍

Address

96-59 222nd Street
New York, NY
11429

Telephone

+17188861500

Website

Alerts

Be the first to know and let us send you an email when Donnelly Mechanical Corporation posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The Business

Send a message to Donnelly Mechanical Corporation:

Shortcuts

Share

Category