United Service Specialists was built on a simple idea: take care of customers the right way, every time. Founded by Bill Warshauer in College Park, Maryland, the company earned its reputation through honest work, dependable service, and a commitment to doing things better than the competition.

Today, the business continues under the next generation of leadership. Bill’s son, Brendan Warshauer, now leads United Service Specialists with the same values it was founded on—while bringing a modern approach to service, efficiency, and innovation. As a licensed Master in HVACR, Brendan is always looking for ways to improve systems, streamline operations, and deliver an even better experience for every customer.

Now based in Adamstown, Maryland, United Service Specialists proudly serves the greater DC metro area, extending as far as Frederick County. No matter the job, our focus remains the same: prompt, reliable service you can trust.

This isn’t just a business—it’s a family tradition. Brendan and his family are involved in the day-to-day operations, working together to ensure every job meets the high standards customers have come to expect. And with plans to pass the company on to his own son one day, the focus is always on long-term quality, trust, and relationships.

At United Service Specialists, we believe comfort shouldn’t come with stress. Whether it’s heating, cooling, or plumbing, our team is committed to providing dependable service that keeps your home running smoothly.

We’re proud to serve our community—and we’re ready to serve you.