Providing Maryland with Residential and Commercial HVAC Services including:

  • HVAC Installation
  • Geothermal Installation
  • HVAC Repair
  • Geothermal Repair
  • HVAC Maintenance

Commercial HVAC Service

Whether you operate a hotel, a shopping center, a college campus or an apartment building, you know you can rely on A Quality for all of your commercial HVAC needs. Zoning system stopped working? We are on it! Need equipment checkup before the heating season? Just give us a call. We work with building owners, property managers and business owners throughout Maryland and Southern Pennsylvania to help them maintain comfortable indoor environments for their employees and customers.

Commercial HVAC Service and Repair

  • Refrigerant recovery and handling
  • Air handling units
  • Gas/electric rooftop units and split systems
  • Electric/electric rooftop unit and split systems
  • Heat pump rooftop unit and split systems
  • Variable air volume systems (VAVs)
  • Variable flow refrigerant systems
  • Exhaust and make-up air systems
  • Building automation control systems

Air Quality System Servicing

  • Dehumidification
  • Humidification
  • Ultraviolet lights
  • High-efficiency air filtration

We also offer maintenance contracts with seasonal HVAC system checkup.

Metal Fabrication

Our fully-equipped sheet metal shop allows us to customize ductwork to your unique space requirements. Our shop manager comes with 46 years experience in metal ductwork fabrication. Just send us your specifications and we’ll take care of the rest.

To request a free estimate on our commercial HVAC service and repair, contact us online or call us directly.

maryland commercial hvac service


What Our Customers Are Saying

testimonial “Contractor did two days worth of work in one day – stayed late and hustled! Really nice guys. Very well mannered. Sean advised on how to re-work my ducts to work better. Took care of my brother and grandfather too. Great company – Great people at A Quality.”

G. Elligson - May 2014

Trusted Brands

trane carrier bryant lennox water furnace climate master mitsubishi

We’ve helped over 10,000 customers solve their HVAC problems.


Request a Free Estimate >

A Quality Heating & Air Conditioning, Inc., Heating & Air Conditioning, Finksburg, MD acca nate carroll county chamber of commerce

Licensed & Insured: HVAC# 48393

Click to View Areas We Serve

Carroll County HVAC Services: Eldersburg, Finksburg, Hampstead, Manchester, Marriottsville, Taneytown, Union Bridge, Westminster, Mount Airy, New Windsor, Sykesville, Woodbine, Taneytown, and more.

Baltimore County HVAC Services: Arbutus, Catonsville, Cockeysville, Dundalk, Edgemere, Essex, Garrison, Lansdowne, Lochearn, Lutherville, Middle River, Milford Mill, Overlea, Owings Mills, Parkville, Park Heights, Pikesville, Randallstown, Reisterstown, Rosedale, Timonium, Towson, White Marsh, Woodlawn, and more.

Frederick County HVAC Services: Frederick, New Market, Mount Airy, Urbana, Ijamsville, Walkersville, Libertytown, Damascus, and more.

Howard County HVAC Services: Clarksville, Columbia, Cooksville, Dorsey, Elkridge, Ellicott City, Fulton, Glenelg, Glenwood, Granite, Hanover, Highland, Jessup, Lisbon, Marriottsville, North Laurel, West Friendship, Woodbine, Woodstock, and more.

Montgomery County HVAC Services: Call for specific locations

Harford County HVAC Services: Call for specific locations

Anne Arundel HVAC Services: Call for specific locations

Southern PA HVAC Services: Adams County, York County, Franklin County, Fulton County