ACCA is a group of over 4,000 air conditioning contractors who work together to improve our industry, promote good practices, and keep homes and buildings safe, clean and comfortable.

ENERGY STAR is a joint program of the U.S. Environmental Protection Agency and the U.S. Department of Energy helping us all save money and protect the environment through energy efficient products and practices.

One Hour Heating & Air Conditioning is a proud member of the Greater Reston Chamber of Commerce.

One Hour Heating & Air Conditioning is an authorized Lennox Dealer. Lennox has set the standard for home comfort, and we continue to push the standard forward with a lineup of more than 60 leading-edge products.

To earn and maintain “Premier” status, Dave Lennox Premier Dealers™ must participate in an independent Customer Satisfaction program. This provides customers with the opportunity to objectively evaluate their performance.

North American Technician Excellence, Inc., the leading non-profit certification program for technicians in the heating, ventilation, air-conditioning, and refrigeration (HVACR) industry and the only test supported by the entire industry.

NaVOBA’s Mission is simple — to create opportunities for all of America’s veteran-owned businesses. More than 3 million men and women who have defended our nation’s freedoms by serving in America’s armed forces have made the choice to start their own small businesses after their military service.

Dedicated to the advancement and education of the plumbing and HVACR industry for the health, safety, and comfort of society and the protection of the environment.

Proud members of the Rheem Pro Partner program. Members of this program are highly trained HVAC professionals who are licensed, professional, and courteous. We offer services ranging from furnace repair to air conditioner maintenance – and everything in between. Rheem Pro Partners are dedicated to always providing exceptional service and workmanship. Every member of the Rheem Pro Partner program strive for complete customer satisfaction with every job.

The Service Roundtable is a revolutionary organization founded by a collaboration of leading contractors to share information and help other contractors improve their sales, marketing, operations and profitability.

As a Mitsubishi Diamond Contractor, Modern Mechanical is qualified by Mitsubishi Electric to find the best personal heating and cooling system solution for your home.

The premier publication of the Air Conditioning, Heating & Refrigeration industry, The NEWS, named One Hour Heating & Air Conditioning CEO Shawn Mitchell to its “Top 40 Under 40” award list in 2015. In 2016, ACHR The NEWS selected Abel Christopher, our Senior Business Development Manager, as one of its “Top 40 Under 40.”

In order tor receive this award, One Hour Heating & Air Conditioning has demonstrated quality work practices, provided premier service and been a valued resource for homeowners. Only the top pros in our network are honored with the Best of HomeAdvisor award.

One Hour Heating & Air Conditioning achieved Platinum Status in the Loudoun County Chamber of Commerce’s Green Business Challenge for 2014, 2015 and 2016. In 2016, we received the prestigious Patricia Trammell Award, named after the Challenge’s founder.

One Hour Heating & Air Conditioning was chosen by readers among Loudoun County’s top companies in the areas of Home Improvement, Construction and Real Estate.

Modern Mechanical earned Blue-Ribbon Finalist status for the Dream Big Award, the only Loudoun business and one of just four Virginia businesses to do so.

Modern Mechanical was listed as one of America’s fastest growing companies, one of just 26 Loudoun-based businesses to achieve that status.

One Hour Heating & Air Conditioning was recognized as Service Business of the Year in 2011. We also were a Finalist for Business of the Year in 2012 and 2013, and won that award in 2014. Our CEO, Shawn Mitchell, won the Chamber’s Entrepreneur of the Year Award in 2013.

One Hour Heating & Air Conditioning recently was named one of the top 50 “2012 Best Places to Work” within the Washington, DC, area by the Washington Business Journal. The award is based upon an employee survey conducted by an independent research firm.