Bowie, MD · Serving the DMV
Reliable HVAC Services You Can Trust
Over 50 Years of Combined Experience Serving the DMV
Comprehensive HVAC Solutions for Every Need
From new system installs to emergency repairs, our experienced technicians keep DMV homes and businesses comfortable year-round.
Installation
Expert installation of new heating and cooling systems, sized and configured for maximum efficiency.
Repair
Fast, dependable repairs to get your system back up and running when you need it most.
Maintenance
Routine tune-ups and inspections that extend equipment life and prevent costly breakdowns.
Emergency Service
24/7 emergency response for heating and cooling failures, because comfort can't wait.
Proudly Serving the DMV
Long Engineering provides residential and commercial HVAC services throughout Prince George's County, Montgomery County, Anne Arundel County, Charles County, Baltimore City, and Baltimore County.
- Prince George's County, MD
- Montgomery County, MD
- Anne Arundel County, MD
- Charles County, MD
- Baltimore City, MD
- Baltimore County, MD
Licensed, Bonded & Insured
50+ Years of Combined Experience
What Our Customers Are Saying
Don't just take our word for it — see why homeowners and businesses across the DMV trust Long Engineering.
Read Our Reviews on Networx