Enjoy Uninterrupted Comfort

With over 150 years of combined experience and a brand that’s stood the test of time, you can trust that we’ll provide you with the best heating service in the area that will keep you warm all season long.

Save Money With Preventative Maintenance

Regular maintenance helps prevent costly repairs and replacements down the line. We’ve got you covered and offer some of the best maintenance plans around.

HVAC Service That Speaks For Itself

We’ve been a trusted company since 1978, and we let our work speak for itself. Read testimonials from our satisfied customers and learn about how we can better serve you.

Heating Services

At United Service Specialists, we specialize in installing, repairing, and maintaining heating systems. With thorough service of all makes, models, and types of heating equipment, we identify potential concerns and promote reliable and sustainable operation.


United Service Specialists specializes in a complete range of commercial HVAC services for both new construction and retrofit into existing facilities. Along with design/build, we offer seasonal maintenance and prompt repair, and tailor our recommendations and strategies to perfectly suit your goals and requirements.


United Service Specialists provides a complete range of expert, residential plumbing services. No matter the challenge, you can count on our licensed and qualified plumbers to deliver a lasting solution. Combining flexible scheduling with timely arrival, tidy job sites, and a team of fully-equipped, extensively trained specialists.

The USS Team

Our Team

Our success and longevity of over 35 years in the DC-MD-VA area is a testament to the high level of quality service that our clients have come to expect and always receive when being served by our technicians. All of our technicians are polite, certified, and throughly trained and United Service Specialists is proud to employ the best in the business.

Heating & Cooling Company in Gaithersburg, MD

United Service Specialists Heating & Air Conditioning provides a wide range of expert services throughout Gaithersburg, MD and surrounding areas, promoting superior comfort and management of your home or commercial facility. Contact us at (301) 241-9200, and we’ll simplify challenges through flexible scheduling, prompt arrival, and streamlined completion of all jobs. Targeting energy efficiency, safety, equipment reliability, and sustainability, we protect your budget, earn your approval, and enhance the health and productivity of your indoor space.

HVAC Installations, Repairs, Maintenance, and More

With over 150 years of combined experience, our fully licensed technicians remain current with cutting-edge technology and industry developments, delivering the ideal solution for your specific requirements. We specialize in new installation, retrofit, seasonal maintenance, and repair of all makes and models of HVAC equipment, including geothermal systems, zoning systems, ductless options, radiant heating, and indoor air quality accessories. Offering effective and affordable residential and commercial plumbing services, standby generators, duct cleaning, and home automation, there is simply nothing we can’t handle.

Partnering with Heating & Cooling Industry Leaders

United Service Specialists Heating & Air Conditioning partners with such industry leaders as American Standard, Rheem, Nexia, Honeywell, Nest, and Generac, catering to your specific goals without sacrificing our standards of quality. We are here to serve your best interests and remain on-call for after hour services throughout Gaithersburg, College Park, Rockville, Germantown, Clarksburg & North Bethesda, MD.