Kaempf & Harris

For over 80 years, Kaempf & Harris Sheet Metal has provided precision fabrication and expert installation in Frederick, MD, and the surrounding region. We specialize in high-quality, custom metal solutions for complex commercial, industrial, and institutional projects, from intricate HVAC ductwork to custom components. Our integrated service ensures seamless quality control from initial design through meticulous on-site installation.When your home or business comfort systems fail or plumbing problems strike, you need a reliable, experienced partner you can trust.

Precision Sheet Metal Fabrication & Installation in Frederick, MD
Your Trusted Partner for State-of-the-Art Sheet Metal Solutions
For over 80 years, Kaempf & Harris Sheet Metal, a proud division of R.W. Warner, Inc., has been the leading provider of precision sheet metal fabrication and expert installation services in Frederick, MD, and the surrounding region. We specialize in delivering high-quality, custom metal solutions for complex commercial, industrial, and institutional projects.
From intricate HVAC ductwork systems designed for optimal airflow and efficiency to custom architectural elements and heavy-duty industrial components, our experienced team and state-of-the-art facility are equipped to handle projects of any scale and complexity. We are dedicated to providing a seamless, integrated service, controlling quality and timelines from the initial design and fabrication process through meticulous on-site installation.
Choose Kaempf & Harris Sheet Metal for unmatched expertise, reliable execution, and a partnership built on decades of trust and precision craftsmanship.
Why Choose Kaempf & Harris for Your Sheet Metal Needs?
When your project demands precision, capacity, and reliability in sheet metal fabrication and installation, Kaempf & Harris stands apart. Here's why leading contractors, institutions, and industrial clients trust us:
- Over 80 Years of Dedicated Sheet Metal Expertise: Our legacy dates back decades in Frederick, MD. This deep, specialized experience means we understand the nuances of working with various metals and the demanding requirements of complex construction and industrial applications.
- Integrated Fabricator & Installer: Unlike many providers, we are experts in both precision fabrication in our shop and professional installation on your site. This integrated approach ensures unparalleled quality control, seamless coordination between fabrication and installation, and a more efficient project flow for you.
- State-of-the-Art Technology & Facility: Our Frederick facility is equipped with modern fabrication technology, including automated cutting and precision bending equipment. This allows us to produce highly accurate parts quickly and efficiently, meeting strict project specifications.
- Large-Scale Production Capacity: With a capacity exceeding 500 tons per year, we have the resources and infrastructure to handle large production runs and significant projects without compromising speed or quality.
- Expert, Safety-Focused Team: Our skilled fabricators and field installers are not only highly trained but also deeply committed to the highest standards of safety, both in our shop and on every job site. We prioritize the well-being of our team and everyone involved in your project.
Precision Sheet Metal Fabrication Services
Our fabrication shop in Frederick, MD, is built for precision and volume. We work with a wide range of metals and gauges to create custom components and systems tailored to your exact needs.
Our Fabrication Capabilities Include:
- Materials: Expertise in Aluminum, Stainless Steel, Galvanized Steel, Black Iron, Copper, and other specialty metals.
- Processes: Comprehensive services including cutting, shearing, bending, forming, welding (various methods), punching, notching, and assembly.
- Advanced Technology: Utilizing modern equipment for efficient and precise metal processing, ensuring tight tolerances and consistent quality.
- Custom & Production Runs: Whether you need a single complex custom piece or a large quantity of fabricated parts, our capacity and process are optimized for both.
We translate complex blueprints and specifications into high-quality metal products, ready for efficient installation.
Expert Sheet Metal Installation Services
Our expertise doesn't end at the fabrication shop. The Kaempf & Harris installation team provides professional, reliable on-site installation services, ensuring fabricated components are seamlessly integrated into your project.
Our Installation Expertise Includes:
- HVAC Ductwork Systems: Specialized installation of all types of ductwork – rectangular, round, spiral, oval – for complex commercial and industrial HVAC systems, ensuring proper fit, sealing, and performance.
- Custom Components: Installation of custom fabricated items, including enclosures, hoods, chutes, frames, and other building or industrial components.
- Architectural Elements: Precise installation of fabricated metal architectural features.
- Site Coordination: Working efficiently and safely on-site, coordinating with other trades to meet project timelines and requirements.
Our experienced installers understand the critical nature of proper sheet metal system integration and are committed to completing the job safely and correctly the first time.
Serving Commercial, Industrial & Institutional Needs
Kaempf & Harris Sheet Metal is the trusted partner for clients across diverse sectors, including:
- Commercial: Providing ductwork and custom fabrication for office buildings, retail spaces, and facilities requiring tailored metal solutions.
- Industrial: Fabricating heavy-duty components, ventilation systems, machine guarding, and more for manufacturing plants, warehouses, and industrial facilities.
- Institutional: Specializing in complex HVAC systems and critical components for hospitals, laboratories, schools, universities, and government buildings where precision and reliability are paramount.
We have extensive experience working on both Plan & Spec projects, executing designs with strict adherence to specifications, and Design-Build projects, collaborating from the outset to provide fabrication and installation expertise.
The Kaempf & Harris Advantage for Mechanical Contractors & General Contractors
We understand the unique challenges faced by Mechanical and General Contractors. Partnering with Kaempf & Harris provides distinct advantages:
- Simplified Project Management: Our integrated fabrication and installation services mean you have a single point of contact and accountability for your sheet metal needs, reducing coordination headaches and potential delays.
- Reliable Timelines: Our significant capacity and efficient processes ensure fabricated materials are ready when needed, and our experienced installation team works diligently to stay on schedule.
- Reduced On-Site Issues: Precision fabrication means components fit correctly, minimizing costly and time-consuming adjustments in the field.
- Trusted Partnership: For over 80 years, we've built a reputation for reliability, quality, and safety, making us a subcontractor you can depend on to enhance your project's success.
Our Process: From Shop to Site
We've refined our process over decades to ensure efficiency, precision, and clear communication at every stage:
- Project Consultation & Quoting: We review your drawings, specifications, or project needs to provide a detailed and accurate quote for both fabrication and installation.
- Detailed Planning & Design Review: Our team collaborates to ensure fabrication plans align perfectly with installation requirements and project timelines.
- Precision Fabrication: Utilizing our state-of-the-art equipment, skilled fabricators produce your components to exact specifications in our Frederick shop.
- Quality Assurance: Each fabricated piece undergoes rigorous quality checks before leaving our facility.
- Coordinated Delivery: We manage the logistics of delivering fabricated materials to your job site on schedule.
- Expert On-Site Installation: Our experienced field crew safely and efficiently installs the sheet metal systems, coordinating with other trades.
- Final Review: We ensure the installed system meets all project requirements and our high standards.
Unwavering Commitment to Quality & Safety
At Kaempf & Harris, quality and safety are not just buzzwords – they are foundational to everything we do. Our fabrication processes incorporate strict quality control measures, and our installation teams adhere to rigorous safety protocols on every job site, aligning with the overall safety mission of R.W. Warner, Inc. You can trust us to deliver work that is not only precise and functional but also executed safely and responsibly.
Featured Projects
- Major Hospital HVAC Ductwork: Fabrication and installation of complex, large-diameter duct systems for a new wing, requiring precise coordination and safe execution in a critical environment.
- Industrial Ventilation System: Design, fabrication, and installation of custom hoods, ducting, and exhaust systems for a manufacturing plant to meet specific air quality requirements.
- Commercial Building Rooftop Unit Connections: Fabrication of transition pieces and installation of rooftop HVAC unit connections and main distribution ductwork for a large commercial facility, demonstrating speed and efficiency.
Ready to Discuss Your Project?
Whether you need precise sheet metal fabrication, expert installation, or a trusted partner for both, Kaempf & Harris is ready to help. Contact us today to discuss your project requirements, learn more about our capabilities, or request a detailed quote.
Request a Quote for Fabrication & Installation | Call Our Frederick Office

