HVAC Mechanical Contractors in DC, MD and VA

About Us

AVENT CONTRACTING, LLC. is a leading company of Air Conditioning, Heating, and Air Quality systems in Rockville, MD

We provide a multitude of services including installations and maintenance of HVAC machines. We work on commercial, and public structures such as schools, churches, hotels, hospitals, offices, and stores. We update, modernize, and preserve your HVAC installations through adding automation and delivering preventative maintenance care services.

Avent Contractors ensures quality maintenance for your facility.


Avent Contracting offers superior services and products than its competitors. We use energy-efficient equipment to help you save money and provide high quality air filtration and indoor air quality products for our customers.


We specialize in commercial HVAC services that also include custom projects for virtually any size building in the DMV area of Maryland, Virginia, and Washington D.C. This includes office buildings, churches, hotels, hospitals, retail stores, government facilities, and residential homes. We have extensive experience working on different types of structures, so you can trust us with our expertise to accommodate you and your needs.


We realize that heating and cooling equipment is a large investment. In order to protect that investment and make it last as long as possible, HVAC maintenance is a must. Avent Contracting offers various heating and cooling maintenance agreements to fit your budget and desired coverage. All of our plans give you priority service and great discounts on future repairs and replacements.


We guarantee our workmanship and promise to treat your home with care and respect. When it comes to our service, we have knowledgeable technicians, who will keep your equipments running smoothly for years to come.