About Us
About Us
Founded in 1937, R.W. Warner, Inc. is a third-generation, family-owned business built on a legacy of value, quality, and integrity. What began as a small plumbing operation in a family kitchen has grown into one of the region’s leading mechanical contracting firms. Over the decades, we’ve expanded through strategic growth and innovation, offering complete mechanical solutions across residential, commercial, industrial, and government sectors. Today, under the leadership of Matt Warner, we remain committed to delivering trusted service while embracing cutting-edge technology and honoring the principles that have guided us since day one.
FAQs
Find answers to common questions about our services and how we can assist you.
R.W. Warner, Inc. is a family-owned commercial construction and mechanical contracting firm based in Frederick, Maryland, providing plumbing, HVAC, electrical, sheet metal, and general contracting services across multiple industries.
We serve a wide range of industries, including commercial, industrial, institutional, and government sectors. Our team is equipped to handle everything from home services to large-scale mechanical and construction projects.
R.W. Warner, Inc. is located in Frederick, Maryland, where it has maintained a strong presence since its founding. This central location allows the company to efficiently serve clients across Western Maryland, Northern Virginia, and parts of West Virginia, supporting a wide range of commercial and industrial projects.
Our company comprises several specialized divisions:
- Williams Electric – Electrical contracting services
- Warner Mechanical – HVAC and plumbing solutions
- Warner Construction – General contracting and construction management
- Kaempf & Harris Sheet Metal – Sheet metal fabrication and installation services
Our main office is situated at : 217 Monroe Avenue
Frederick, Maryland 21701 where we coordinate our operations and support projects across the region.
