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Deciding between an AHU retrofit or replacement can be a big decision. At Mainstream, we want to help guide you as best as possible. Our experienced team can lead you through the process.

Here are three reasons to consider Mainstream for your AHU retrofit!

Life Cycle Upgrades

Retrofitting worn components of an air handling unit is an effective way to improve the reliability and longevity of an HVAC system. The cabinet of an AHU may remain in good condition while the components have deteriorated. Identifying what to fix or replace is more cost-effective than replacing the entire unit. No matter the case, Mainstream’s engineering team will provide the right retrofit solution for your needs.

Top-Tier Engineering


With decades of industry experience, Mainstream can design air handling equipment that fits your needs. Does the job call for certain performance requirements? Are there dimensional constraints? Design specifications? Our team has the know-how and creativity to get you what you need. Using CAD design software, we can produce CAD drawings of unit configuration, fan reports and curves, coil reports, and data on all components.

Site Assembly by Factory Certified Installers

We understand that replacing an AHU can be daunting. That’s why Mainstream has perfected our ability to deliver an entire project – from initial design to startup. No matter the physical constraints, we have the experience to deal with any scenario. Our equipment is specifically designed for ease of breakdown and reassembly.

Retrofitting Air Handlers

Whether you’re looking to upgrade your AHU or need an air handling unit retrofit, we can help. Contact our experts at Mainstream today!