New Construction

Western Allied has been building HVAC systems for over 60 years. Nobody does it better. Let us get it right the first time.


Providing HVAC solutions directly to building owners as the prime contractor as well as working in a subcontractor role.

Service & Maintenance

We employ the greatest technicians and by far the highest ratio of degreed engineers to field techs in the industry.

Design & Build

Proven track record in office building, hotel, retail, biotechnology, clean room, industrial manufacturing, and entertainment facilities on a design/build basis.

Building Information Modeling

Western Allied offers a wide variety of Building Information Modeling (BIM) capabilities. Our in-house engineering department has vast experience working in 3-D modeling software; Revit and AutoCAD MEP.

Controls & Building Automation

Providing the best Multi-protocol LonWorks, BACnet, and Modbus control systems with an established and respected team that can come to the table without the constraints placed on many contractors.

Pipe Prefabrication

Run by skilled union pipefitters using state of the art tools, we provide prefabrication of pipe assemblies from 2” to 16” diameter or larger by special request.