Sheet Metal and Piping Fabrication Services
We provide sheet metal fabrication services that support commercial and industrial HVAC systems across Northwest Washington. Our in-house shop produces ductwork and custom components built for accuracy, fit, and long-term performance.
In-House Sheet Metal Fabrication
Our sheet metal fabrication shop allows us to control quality, improve coordination, and keep projects moving efficiently. By fabricating components in-house, we ensure systems are built to match project specifications and installation requirements.
This approach helps reduce delays, improve fit on-site, and support overall system performance.
Sheet Metal Fabrication Capabilities
Blythe Mechanical provides comprehensive sheet metal fabrication services in support of HVAC and air‑side mechanical systems. These capabilities are typically applied to new construction and system upgrades across commercial, institutional, and industrial facilities.
Key sheet metal fabrication capabilities include:


HVAC ductwork fabrication for supply, return, and exhaust air systems.

Custom‑fabricated fittings and transitions to accommodate complex layouts and tight mechanical spaces

Air distribution components, including plenums and specialty pieces, tailored to project‑specific airflow and performance requirements

Integration with engineered HVAC designs, ensuring fabricated components align precisely with drawings, specifications, and installed equipment
Our sheet metal work is coordinated closely with our HVAC engineering and installation teams, helping to reduce field modifications, improve installation efficiency, and support overall system performance.

Piping Fabrication Capabilities
Piping fabrication is a core competency for Blythe Mechanical and reflects the company’s historical roots in plumbing and piping services dating back to 1904. Their fabrication work supports a wide range of systems commonly found in commercial and industrial facilities.
Piping fabrication capabilities include:
- Plumbing and mechanical piping systems, fabricated to support domestic water, hydronic heating and cooling, and other building services
- Process and industrial piping, including piping associated with mechanical rooms and specialized systems
- Prefabricated piping assemblies designed to improve jobsite productivity and installation accuracy
- Support for commercial and industrial refrigeration, including piping associated with complex refrigeration and ammonia systems
Fabrication efforts are aligned with Blythe’s design‑build and plan/spec project delivery models, allowing piping systems to be fabricated in a way that improves coordination, reduces rework, and supports safe, efficient installation in the field.
Supporting Commercial and Industrial Projects
Our fabrication shop supports a variety of projects, including:
- Commercial buildings
- Industrial and manufacturing facilities
- Food processing environments
- Institutional and public sector projects
Each project requires precision, and our team ensures components are fabricated to align with system design and field conditions.


Integrated with Installation and Service
What distinguishes our fabrication capabilities is their integration with our in-house engineering, project management, installation, and service teams. This enables us to:
- Fabricate components that match real-world field conditions
- Improve schedule reliability by reducing on-site fabrication demands
- Maintain consistent quality standards from design through installation
These fabrication services support our broader scope of mechanical construction, including HVAC, plumbing, piping, mechanical rooms, and refrigeration systems.
