Commercial HVAC Services in Windsor & Essex County

Postma provides commercial HVAC installation, maintenance and repair across Windsor, Leamington, Kingsville, Essex, Amherstburg and Lakeshore. Greenhouse heating and ventilation, refrigeration and process cooling, rooftop units and boilers, with 24/7 emergency coverage. Call 519-354-9491.

Commercial HVAC Contractors Serving Windsor & Essex County

Postma’s commercial division services Windsor, Leamington, Kingsville, Essex, Amherstburg, LaSalle, Tecumseh, Lakeshore, Belle River, Harrow and the surrounding areas of Essex County.

Essex County is a cooling market before it is a heating market. Between the greenhouse belt around Leamington and Kingsville, the food processing and agricultural operations across the county, and automotive and supply chain manufacturing around Windsor, a large share of the commercial equipment here runs year round and carries a product or a production line rather than just occupant comfort. When it stops, something spoils or a line stops moving.


What We Service Across Essex County

Sector Typical Work
Greenhouse & agricultural Unit and boiler heating, hydronic distribution, ventilation and circulation fans, environmental controls, and the service upgrades that come with an expanding range. A failed night in winter costs a crop cycle, not a comfort complaint.
Food processing & cold storage Refrigeration systems, cooler and freezer rooms, process chilled water, make-up air and washdown rated equipment. Temperature excursions are inventory losses, which is why these calls carry the shortest clock we run.
Manufacturing & supply chain Plant ventilation and make-up air, process cooling, welding and dust exhaust, unit heaters, and work scheduled around production or a planned shutdown rather than around our calendar.
Warehousing & distribution Unit and infrared heating, high bay ventilation and destratification, rooftop units, and the electrical capacity work that comes with dock equipment and fleet charging.
Retail, restaurant & hospitality Rooftop units, walk-in coolers and freezers, kitchen exhaust and make-up air balancing, and off-hours changeouts so the doors open on schedule.

Three trades on one call. HVAC, plumbing and electrical under one roof. On process and refrigeration work in particular, the cause frequently sits on the other side of a trade boundary, and the technician who finds it is licensed to fix it rather than booking you a second visit.


Commercial HVAC Services Available in Windsor-Essex

New Construction

Design-build and tendered mechanical packages for new Windsor-Essex commercial builds and fit-outs.

Preventative Maintenance

Scheduled service with written condition reports, asset tagging and capital replacement forecasting.

Repair & Emergency

24/7 diagnosis and repair on rooftop units, boilers, refrigeration and controls.

Replacement

Boiler and rooftop changeouts, crane work and system upgrades scheduled around your hours.

Windsor-Essex service calls are dispatched with our Chatham-Kent fleet. That means 80+ licensed technicians and 60+ stocked service vehicles behind your building rather than a two-person branch. It also means we are straight with you that a Windsor or Leamington emergency call is a longer drive than a Chatham one. Buildings under a preventative maintenance agreement get priority dispatch.


Windsor-Essex Commercial HVAC FAQ

Are you based in Windsor, or do you drive from Chatham?

Our commercial technicians and stocked service vehicles are dispatched from Chatham-Kent. We are direct about that because it matters for emergency response times. What you get in exchange is the depth of an 80+ technician commercial division rather than a small local branch that runs out of capacity in a cold snap or a heat wave.

Do you service greenhouse operations in Leamington and Kingsville?

Yes. Unit and boiler heating, hydronic distribution, ventilation and circulation fans, and environmental controls. Growing environments live or die on heating and ventilation uptime, and a failed night in winter can cost an entire crop cycle.

Do you handle commercial refrigeration?

Yes. Walk-in coolers and freezers, reach-in cases, condensing units and rack systems, process cooling and chilled water. Food processing, food retail and agricultural operations across Essex County make this a large share of the work we do in the region.

Are you licensed and insured for work in Essex County?

Yes. TSSA registered contractor, ECRA/ESA licensed electrical contractor, licensed plumbing contractor, G1 and G2 gas technicians on staff, WSIB in good standing and full liability coverage. Certificates are available on request for prequalification and tendered work.

Can you schedule work around a plant shutdown?

Yes, and on manufacturing and food processing sites that is normally how larger work happens. Tie-ins, changeouts and process piping modifications get planned against your shutdown window rather than a business day, and we will hold crews for a scheduled date.

Which Windsor-Essex communities do you cover?

Windsor, Leamington, Kingsville, Essex, Amherstburg, LaSalle, Tecumseh, Lakeshore, Belle River and Harrow. For multi-site portfolios we will go beyond that radius, ask.

Need commercial HVAC service in Windsor-Essex? Call 519-354-9491 or request a commercial assessment. See all commercial HVAC services, or our full range of commercial services.

Need commercial HVAC service in Windsor-Essex? Call 519-354-9491 or send us an equipment list and we will scope it. Postma covers Windsor, Leamington, Kingsville, Essex, Amherstburg, LaSalle, Tecumseh, Lakeshore, Belle River and Harrow, with 80+ licensed technicians and 60+ stocked service vehicles behind every call.