Air handlers and packaged units
Refurbishment of deteriorated metal surfaces within commercial HVAC equipment.
- Cabinet floors, walls, and roofs
- Drain pans and filter racks
- Outside-air intake sections
Corrosion can affect both HVAC equipment and the steel that supports it. Coolertech provides surface preparation, localized repairs, and protective coatings to help extend the useful life of existing assets.

We develop the work scope around the condition of the asset, site access, and the surfaces that need attention.
Refurbishment of deteriorated metal surfaces within commercial HVAC equipment.
Surface restoration and corrosion protection for steel exposed to outdoor conditions.
Repair and coating scopes for exposed mechanical equipment surfaces.
These project photos show the original corrosion and coating deterioration, followed by the finished gray-coated support framing. Views are grouped by project stage and may show different angles.
A closer look at corrosion around beams and connections, work on the steel surfaces, and the finished coating. Photos are grouped by project stage; viewing angles vary.
Document the affected surfaces, access requirements, and areas needing repair. Coordinate work around equipment operation and site needs.
Remove loose coatings, corrosion, and contaminants using preparation methods specified for the substrate and selected coating system.
Complete the agreed localized repairs and apply the specified protective coating system. Repair and coating selections depend on the assessment.
Provide completion photos and project-specific maintenance information. Inspection and warranty options are defined in the proposal.
We discuss containment, access, equipment downtime, surface preparation, and coating requirements before work begins. Where section loss or structural damage is identified, the repair scope must account for the required structural evaluation.
Project photos document the original floor and drain-area condition, mechanical surface preparation, and the finished protective coating.
Project photographs show the original fan housings and wheel surfaces, an intermediate gray coating stage, and the finished red exterior.
Project photos document corrosion and coating deterioration on the support beams and connections, followed by the renewed protective finish.
Send photos, the project location, and a description of the equipment or structure. We’ll help define the assessment and next steps.
Original corrosion and coating deterioration on rooftop equipment supports, followed by the renewed gray protective finish on the steel framing.