Service · Chillers
Chillers for process and comfort cooling
Chilled-water plants, process loops, and building comfort cooling — service, replacements, and occupied-facility retrofits. Not freezer racks or cold-storage refrigeration.
Process cooling and comfort cooling live on chilled water — not on freezer racks. Willis Mechanical provides factory-trained chiller service, plant replacements, and phased retrofits for Metro Atlanta facilities that need the plant online.
This page is not for low-temp storage or freezer refrigeration. If you need cold rooms, freezers, or food manufacturing refrigeration, see Refrigeration. For CO₂ / natural-refrigerant systems, see CO₂ refrigeration.
Chiller types we work on
- Air cooled
- Water cooled
- Scroll
- Semi-hermetic
- Screw
- Centrifugal
- Mag bearing
- Process
- MRI / medical imaging
- Communications
- Data center
What chillers covers here
- Chilled-water plants serving process loads or building comfort
- Process cooling loops where temperature control protects production
- Comfort cooling for campuses, commercial buildings, and critical spaces
- Chiller replacements, upgrades, start-up, and commissioning
- Support for cooling towers and related plant equipment when they sit with the chiller plant
How we work
- Assess plant capacity, redundancy, and end-of-life risk before recommending a path
- Plan replacements and upgrades around uptime — phased work in occupied facilities
- Coordinate with facilities and ops so shutdown windows stay short and intentional
- Factory-trained service, start-up, commissioning, and handoff documentation
- One accountable team through renovations, retrofits, and special projects — not ground-up construction framing
Where it applies
- Industrial process cooling plants
- Campuses and commercial buildings with central chilled water
- Hospitals and data-adjacent cooling loads that depend on plant chillers
- Owner-occupied Metro Atlanta facilities that want one mechanical team on the plant
Renovations, retrofits & special projects
Chiller work here is typically plant renovation and retrofit in facilities that already run: capacity upgrades, end-of-life replacements, efficiency platforms when they fit, and special projects scoped to keep loads online. We do not sell this as new construction.
Chillers FAQ
Are chillers the same as refrigeration?
No. Chillers on this page means chilled-water plants for process cooling and comfort cooling. Low-temp cold storage, freezers, food manufacturing racks, and CO₂ systems live on Refrigeration and CO₂ refrigeration — related work, different product.
Who does commercial chiller retrofits in Metro Atlanta with less downtime?
Willis Mechanical scopes factory-trained chiller service, plant replacements, and phased retrofits for Metro Atlanta facilities that need the plant online — renovations and special projects in occupied buildings, not ground-up construction.
Can you replace a plant chiller without a long shutdown?
That is how we plan occupied-facility replacements and upgrades: phased work, short intentional windows, and one accountable team through start-up and commissioning.
Do you service process chillers and comfort chillers?
Yes. Process loops and building comfort chilled-water plants are both in scope when the equipment is a chiller plant — not a freezer rack.
Is this new construction?
No. Chiller work here is renovations, retrofits, replacements, and special projects in facilities that already run.