The D.C. area’s premiere HVAC
provider for over a decade.

VALUE, COMMITMENT and INTEGRITY. Those three words have been driving Eminence Maintenance & Building Services (EMBS) HVAC from the start. In our work and in our people, you will see these core values reflected.

In providing our residential and commercial HVAC services, we always have the word FIRST in mind.

We strive to:

  • Be the first company you think of for your HVAC needs.
  • Provide a solution done right the first time.
  • Deliver exemplary service from the first call to the last cleanup on the job.

We have built a reputation of excellence with our loyal, long-term customers. We would be honored to serve you as well.

Our Leadership Team

EMBS’s diverse team of HVAC professionals are highly-trained and passionate about what they do.
We bring reliability and expertise to every job, every time.

Sina Avery

Sina Avery

CEO & President

“I know there is a lot of competition in this industry, and that’s why I make sure we go above and beyond for each customer we service.”

Sina Avery is a graduate of Rutledge of Washington School of Business and holds a certification in data entry/administrative assistance. She boasts an impressive resume with over 25 years in the private sector including experience in sales and marketing.

As a tenured professional in the private sector, Sina recognized a need for a service company to deliver a higher level of service. Being a female minority business owner, she has led the company in a distinctive and positive way. She treats each client as if it is her only one, and her work ethic and values continue to drive EMBS’ high rate of customer satisfaction and return.

Antonio Avery

Antonio Avery

Managing Partner

“I am very excited about the direction the company is going. I stand behind the values of EMBS and the quality of our work.”

Antonio Avery has over 30 years experience in the building services industry. He is a graduate of National Association of Power Engineers with a certificate of completion in steam boiler operations and Master HVAC first class. His experience has led him to work on private, commercial and government projects as the lead engineer for companies including Nations Bank, Bank of America and Baxter Pharmaceuticals. He has also maintained and operated high pressure steam boilers, centrifugal chillers, rooftop unit replacement services, VAV control boxes and building energy control systems.

Antonio offers a welcome compliment to the EMBS leadership team. He takes pride in helping to steer the company in the positive trajectory it has experienced over the past several years.

Our Credentials

EMBS technicians go through extensive safety and technical training. We are fully-licensed and certified in the following:


  • Maryland HVAC Master License #79557
  • Maryland 1st Class Steam Operation License #14105
  • District of Columbia HVAC Master License #RM902331
  • MHIC General Contractor License #05-156073

DUNS: #055293743


  • 238220: Plumbing, Heating, & AC Contractors
  • 238320: Painting & Wall Covering Contractors
  • 238290: Installing or Servicing Building Equipment
  • 238310: Drywall & Insulation Contractors
  • 561720: Cleaning Building Interiors