About Us
Over 50 Years of Combined Experience Serving the DMV
Long Engineering has built a reputation for reliable, honest HVAC service throughout the region. We bring decades of combined industry experience to every residential and commercial project.
Certifications & Licensing
Licensed, Bonded & Insured
Fully licensed HVAC contractor with comprehensive liability and workers' compensation insurance.
Our Service Area
Headquartered in Bowie, MD and serving the entire DMV region.
Meet the Team
Long Engineering was founded on a simple promise: do great work, treat people right, and stand behind everything you install. Our leadership team brings more than five decades of combined HVAC experience across residential homes, multifamily properties, and commercial facilities throughout Maryland.
We're a tight-knit team of licensed technicians, service coordinators, and project managers — every customer interaction reflects the standards we've built our business on.