Maryland's Trusted HVAC Experts — Residential & Commercial
Serving Prince George's County, Baltimore City, Baltimore County, Baltimore City, Montgomery County, and Anne Arundel County for over 50 years. Licensed, insured, and ready to serve.
✦ 50+ Years of Experience ✦ Licensed & Insured ✦ Residential & Commercial ✦ Serving 6 Maryland Counties
Commercial HVAC Services for Maryland Businesses
Long Engineering provides reliable HVAC solutions for office buildings, retail centers, warehouses, restaurants, medical facilities, schools, and apartment complexes across Maryland. From rooftop unit repairs to full system installations and preventive maintenance contracts, our experienced technicians keep your property comfortable and your systems running efficiently.
Commercial Service Include:
✦ Rooftop Unit (RTU) Repair & Replacement
✦ Preventive Maintenance Contracts
✦ Commercial AC Installation
✦Heating System Repair & Replacement
✦Indoor Air Quality Solutions
✦Emergency Commercial Service
✦And More
Residential HVAC Services Across Maryland
From routine maintenance to full system replacements, Long Engineering has kept Maryland families comfortable for over five decades. We service all major brands and work with homeowners across Prince George's County, Baltimore City, Baltimore County, Montgomery County, and Anne Arundel County.
Residential Services Include:
✦AC Repair & Installation
✦Furnace & Heat Pump Service
✦Air Duct Cleaning
✦Seasonal Tune-Ups
✦Duct Inspection & Repair
✦System Replacement
✦Emergency Repairs
✦ And More
Why Maryland Trusts Long Engineering
50+ Years of Experience
Decades of hands-on expertise serving Maryland homes and businesses
Licensed & Insured
Fully licensed HVAC contractor operating with integrity and professionalism
Local & Reliable
We know Maryland's climate and the unique demands of properties in our region
Honest Estimates
Free on-site estimates with no pressure and no surprises
24/7 Emergency HVAC Repairs
Fast, efficient HVAC repair services to immediately address and resolve any system malfunctions, ensuring your comfort is restored without delay.
FAQ
What areas does Long Engineering serve?
Long Engineering serves Prince George's County, Baltimore City, Baltimore County, Montgomery County, and Anne Arundel County in Maryland.
Do you service both residential and commercial properties?
Yes. Long Engineering provides full HVAC services for homeowners and commercial property owners including offices, retail, warehouses, restaurants, and medical facilities.
Does Long Engineering offer emergency repair services?
Yes. We provide emergency HVAC repair services for both residential and commercial customers across our Maryland service area.
What brands do you work with for installations and repairs
We work with a wide range of top HVAC equipment manufacturers to provide the best solutions
Can Long Engineering help improve the energy efficiency of my HVAC system
Absolutely we specialize in installing and maintaining energy-efficient HVAC systems that not only reduce your carbon footprint but also lower utility costs. Our experts can provide tailored recommendations based on your specific needs.
How do I schedule a service with Long Engineering
You can call our office or fill out a service request form on our website