Commercial Rooftop HVAC & Ventilation Services

Cooley Mechanical provides commercial HVAC services for businesses in Washington Township and the surrounding region, with Macomb, Oakland and Lapeer counties as our primary service area. We evaluate heating, cooling and commercial rooftop-unit concerns, including economizers, outside-air dampers and ventilation controls.

Every building is different. Tell us which equipment serves the space, what changed and whether an inspector or project team provided a written correction. We will discuss the service scope and availability before scheduling.

Commercial HVAC service built around your building

A rooftop unit can heat or cool while its outside-air components need attention. The service visit should address the equipment and the reason for the call, with clear limits on what can be verified.

Rooftop heating, cooling and ventilation

Depending on the unit and agreed scope, an evaluation may include the outdoor-air intake, dampers, linkage, actuator, sensors, controls and associated air path, alongside the heating or cooling concern. A visual inspection or working thermostat alone does not establish the outdoor airflow delivered to the space.

Economizer inspection and repair

An economizer uses suitable outdoor air for cooling and may also participate in minimum ventilation operation. If dampers do not move, a control reports a fault or the minimum-air setup is unknown, diagnosis should identify the cause before a part is ordered. Repair options depend on equipment condition, documentation and compatible parts.

See what to expect from an economizer inspection and repair visit.

Help with an occupancy-related correction

Send the inspector’s written concern and any available mechanical plans. We can evaluate the mechanical equipment and explain repair options within the agreed scope. Airflow measurement, balancing, design input or additional trades may be needed. The responsible authority determines the approvals required for the project; a repair does not guarantee occupancy approval.

Prepare for an HVAC correction before building occupancy.

Maintenance and replacement planning

Maintenance can identify equipment concerns and inform repair planning, but it cannot promise a particular lifespan, avoided repair bill or savings amount. If the unit has several aging components, compare the defined repair with a compatible retrofit or replacement, including roof access, project requirements and disruption to the business.

Compare rooftop-unit repair and replacement.

What to expect when you request service

Share the concern. Include the building location, equipment information, written correction if applicable, roof-access arrangements and the person coordinating access. Do not climb onto a roof to gather information for an initial request.
Confirm the visit. We discuss the work and availability with you. Online booking submits a request; a team member must confirm the appointment before arrival.
Review the findings. We explain observations, proposed work, what is included and what still needs parts research, measurements, design input or authority review.

We do our best to answer the phone. If we are helping another customer, the online request gives us a way to follow up with the details.

Request service online Call (586) 697-5389

Commercial HVAC questions, explained

Can you quote the correction from a short description?

A written concern is a useful start. Equipment condition, access, compatible parts and the actual project requirement can change the scope, so an inspection or additional information may be needed before a quote.

Do you serve commercial properties outside the primary counties?

Work in other listed counties is by availability and depends on equipment scope. Check the county directory and contact us to confirm. A county listing is not a guaranteed appointment.

Clear scope and practical next steps

Plan safe access

Tell us about roof access, equipment restrictions and site requirements before the visit. We will identify what can be inspected and any access or operating conditions that limit the work.

Understand the options

Compare the defined repair, compatible parts, condition of the full unit and any additional design or airflow work. Ask which items are included and which remain optional or unresolved.

Confirm the appointment

Cooley Mechanical is a small business based in Washington Township. Service requests are subject to availability, and a team member confirms appointment details with you before arrival.