Expert HVAC Services for Optimal Building Performance, Efficiency & Cost Management

If you have a commercial property in Manassas, you need reliable heating and cooling equipment to maintain comfort and productivity. You’ll need prompt service from a reputable commercial HVAC company when a problem arises. Look no further than Mechanical Engineering & Construction Corporation.
Our highly trained technicians have delivered superior HVAC services for over two decades, so you can be confident you’ll receive top-notch service when you partner with us.
Contact us online to request commercial HVAC repair, maintenance, or more.

Emergency Commercial HVAC Services

When your commercial HVAC system stops working, you need to act quickly. Your team members and customers need a comfortable, safe place to do business. MEC² understands the urgency behind your service request, which is why we provide 24/7 emergency service. If your heating or cooling equipment fails, our technicians will promptly arrive to restore your comfort.
MEC² is always here for you. Contact us today for emergency commercial HVAC service for your Manassas business.

Commercial HVAC Services

When your commercial heating or AC unit breaks down, call Mechanical Engineering & Construction Corporation. Our commercial heating and AC services include:
  • HVAC repair: We offer prompt and reliable HVAC repair, and you can trust our technicians to do it right the first time.
  • HVAC installation & retrofitting: If your commercial property needs a new heating and cooling system, count on the experts at MEC². We can help you select the ideal equipment, and we’ll install it for you to ensure it’s working optimally.
  • HVAC maintenance: Set up a maintenance contract with our team, and get peace of mind that your system is poised to serve you well. Routine maintenance will help you lower your energy costs and reduce the risk of a breakdown.
  • And more
Contact the team at MEC² for all your commercial HVAC needs in Manassas.

Systems We Service

Commercial HVAC systems can have quite a few different working parts. To help, we service all the systems you need to run your property’s heating and cooling systems well, including:
  • Central air conditioners
  • Ductless systems
  • Heat pumps
  • Furnaces
  • Dual fuel systems
Schedule service for your company’s HVAC systems, and let our Manassas experts help.

Air Quality Solutions

To protect the people who work in your building, you need to focus on indoor air quality. We can help with the following services:
  • Duct cleaning
  • Ventilators
  • Humidifiers and dehumidifiers
  • Filtration systems
Schedule an evaluation of your property’s indoor air, and let us help you keep it clean.

Why Choose Us?

When you choose MEC² for all your commercial HVAC needs, you’ll get award-winning service from a reputable team. We provide innovative solutions for all your mechanical needs and strive to exceed customer expectations.
Mechanical Engineering & Construction Corporation stands apart from other HVAC companies in Manassas in our:
  • Performance: Work done right and on time, exceeding client expectations every time.
  • Professionalism in all things: How we work, communicate, and interact with our community, customers, and team.
  • Pride: In everything we do.
Learn about our professionalism and dedication to communication by contacting us for Manassas commercial HVAC services.




Million Annually



Full-Time Employees On Staff







in Charitable Giving in 2021 & 2022 Combined



Training Hours Per Year