About Us

about Werrlein Services
Werrlein Services offers commercial and residential plumbing and HVAC services for residents of Anne Arundel County and Prince George’s County, Maryland. Our highly skilled technicians provide fast and reliable service, ensuring your indoor comfort needs are met year-round.
At Werrlein Services, we believe in providing excellent service at an affordable price. That’s why we offer money-saving promotions and discounts to help you get the most value for your dollar.
We also offer same-day appointments and an easy online scheduling system to make booking an appointment hassle-free. Call us today and experience the Werrlein Services difference!

AS OUR CUSTOMER, YOU’LL ENJOY:
- A 100% satisfaction guarantee
- Flat rate pricing - no unexpected costs!
- Trustworthy technicians who are experts in their field
- The latest technology available for diagnosis and repair
LEADERSHIP TEAM

Jonathan Werrlein
Partner
Jonathan Werrlein brings more than 20 years of experience in the construction, customer service, and home remodeling industries to Werrlein Services. Jonathan enjoys working closely with both his team members and clients to understand their unique plumbing and HVAC needs and provide effective solutions. He values the satisfaction of his clients above all else and strives to exceed their expectations by delivering exceptional service and results. His ability to dive into the details, coupled with his creative thinking, ensures that every aspect of a project is meticulously planned and executed to perfection.

Karl Granzow
Partner
Karl has over 35 years of experience in the residential, commercial and industrial building industries. He has served as site foreman, project manager and development coordinator for both large and small companies. Karl has keen insight into planning, engineering, permitting and construction standards and is dedicated to making Werrlein Services the best provider of residential and commercial HVAC and plumbing services in Maryland.

Justin Granzow
Partner
With over 8 years of combined experience in the commercial plumbing and restaurant industry, Justin knows the importance of not only providing the highest quality of work to customers, but also building great relationships with them. With a Bachelor’s degree in management and a minor in business administration, Justin is ready to assist Werrlein Services and the team in going above and beyond to satisfy customers!