How long has Air Plus been serving Cincinnati?

Air Plus Heating and Cooling has been serving Greater Cincinnati and Northern Kentucky since 1993. Founded by Rob Raby, the company is family-owned and operated out of Reading, Ohio, and has grown into one of the region’s most recognized HVAC contractors over more than three decades of service.

What does it mean to be a Carrier Factory Authorized Dealer?

Carrier Corporation designates Factory Authorized status only to dealers who meet strict annual benchmarks for technical training, customer satisfaction, and service quality. As a Carrier Factory Authorized Dealer, Air Plus technicians receive direct training on Carrier equipment and are held to a higher performance standard than the industry average. In 2025, Air Plus also received the Carrier President’s Award, which is given to fewer than 1% of Carrier dealers in the country.

Does Air Plus offer same-day heating and cooling service?

Yes. Air Plus offers same-day service for most heating and cooling calls, including weekends. Customers enrolled in the Air Plus Perks program receive 24-hour priority service, 365 days a year, including holidays.

Does Air Plus offer financing for new HVAC equipment?

Yes. Air Plus offers multiple financing options through Wells Fargo Bank, FTL Finance, and Microf. Options include low-interest and deferred-interest plans for qualified applicants, as well as a rent-to-own program through Microf that requires no credit check. Contact our office or ask your Home Comfort Advisor during your free quote appointment to find out which options are available to you.

What is the Air Plus Perks program, and what does it include

The Air Plus Perks program is Air Plus’s annual maintenance membership. Members receive two performance tune-ups per year, 24-hour priority emergency service 365 days a year, up to 40% off all replacement parts, no trip charges on service calls, an energy-saving coil cleaning, and a 30-day labor warranty on all services. The program is designed to extend the life of your system and catch problems early before they turn into expensive repairs.

Rooftop Units in Cincinnati, OH

Rooftop Units & NATE-certified Technicians

When your rooftop unit fails, every minute of downtime affects your building. Air Plus Heating and Cooling has been servicing commercial rooftop HVAC systems across Greater Cincinnati since 1993, with licensed technicians, manufacturer-trained credentials, and the fast response your business depends on.

Signs Your Rooftop Unit Needs Attention

Rooftop HVAC systems usually show early warning signs before they fail completely. These are the issues facility managers and business owners should not ignore:

One area of your building is significantly hotter or colder than others

often caused by failing dampers, airflow imbalance, or rooftop unit capacity issues

The system runs continuously but never fully reaches the set temperature

indicating compressor strain, refrigerant issues, or undersized equipment

You notice weak airflow from ceiling diffusers or vents

commonly caused by blower motor wear or blocked rooftop intake components

Energy bills increase without any change in occupancy or usage

a sign the unit is losing efficiency and working harder to compensate

Loud noises coming from the rooftop (banging, rattling, grinding)

often linked to failing motors, loose components, or worn fan assemblies

The unit short cycles or shuts down unexpectedly

typically caused by electrical faults, sensor failures, or control board issues

Certified & Trusted Quality

Locally Owned

We have provided rooftop unit installation, repair, and maintenance services for Greater Cincinnati businesses since 1993, covering packaged rooftop HVAC systems for retail buildings, office spaces, warehouses, light industrial facilities, and multi-tenant commercial properties.

Rooftop units are one of the most common commercial HVAC systems in the region because they combine heating and cooling into a single rooftop-mounted system, but when they fail, they impact the entire building immediately.

Certified and Insured

Every technician on our team holds NATE certification. We are a Carrier Factory Authorized Dealer and 2025 Carrier President’s Award recipient. That means a technician who diagnoses your rooftop unit accurately, explains the issue clearly, provides a firm price before any work begins, and restores system performance as quickly as possible.
If your rooftop unit is not cooling properly, is making unusual noise, or is failing to maintain consistent temperature, call Air Plus at (513) 769-0871.

What Rooftop Unit Includes with Air Plus

Rooftop unit service is not just about fixing a problem. It’s about understanding why the system is failing and making sure it does not disrupt your building again. Air Plus approaches every rooftop unit service call with a structured diagnostic process designed for commercial reliability and minimal downtime. Here is what our NATE-certified technicians do on every rooftop unit service visit:

01 System Performance Evaluation

We begin by reviewing how the rooftop unit is currently operating, including airflow, temperature consistency, cycling behavior, and any reported issues from building occupants or facility managers.

02 Electrical System Inspection

We inspect all electrical components including contactors, relays, capacitors, wiring, and control boards to identify faults that can cause intermittent shutdowns or inconsistent operation.

03 Compressor and Mechanical Assessment

We evaluate compressors, fan motors, belts, and moving components for wear, imbalance, or performance loss under commercial load conditions.

04 Airflow and Coil Condition Check

We inspect evaporator and condenser coils, filters, and airflow pathways to detect restrictions that reduce efficiency and force the system to overwork.

05 Refrigerant and Performance Testing

We measure refrigerant levels, system pressures, and temperature output to confirm the rooftop unit is operating within manufacturer specifications and delivering proper heating and cooling capacity.

Rooftop Unit Issues Don’t Stay Small for Long

If your rooftop unit is showing signs of failure, reduced performance, or inconsistent airflow, do not wait for a full breakdown.

Call Air Plus at (513) 769-0871 or fill out the form below. We respond quickly to commercial rooftop HVAC calls across Greater Cincinnati.

Why Cincinnati Businesses Choose Air Plus for Rooftop Units

When a rooftop unit fails, the cost isn’t just the repair; it’s lost productivity, uncomfortable tenants, and disrupted operations. Air Plus is structured specifically to reduce that risk for commercial properties across Greater Cincinnati.

Commercial Rooftop Expertise Since 1993

We’ve serviced rooftop HVAC systems for decades across warehouses, office buildings, retail centers, and industrial facilities. That experience means faster diagnostics and fewer return visits.

Rooftop-Specific Diagnostic Expertise

Rooftop systems fail differently than residential HVAC systems. Our NATE-certified technicians are trained specifically on commercial rooftop airflow balancing, compressor load issues, and multi-zone building distribution problems.

Fast Commercial Response

When a rooftop unit fails, time matters. Air Plus prioritizes commercial service calls to reduce downtime and restore building comfort as quickly as possible, including same-day service when available.

Carrier-Authorized Commercial Rooftop Service

As a Carrier Factory Authorized Dealer and 2025 President’s Award winner, we service rooftop systems according to strict manufacturer standards protecting both performance and warranty coverage.

Frequently Asked Questions About Rooftop Units in Cincinnati

How do I know if my rooftop unit is failing?

Common warning signs include uneven temperatures, weak airflow, rising energy bills, strange noises from the roof, and frequent system cycling. These issues usually indicate internal component wear or reduced efficiency that needs professional inspection.cleaning.

What is included in a rooftop HVAC service call?

A rooftop service call includes full system inspection, airflow testing, electrical diagnostics, coil evaluation, and refrigerant performance checks to identify issues affecting operation.

What causes rooftop units to break down most often?

The most common causes are neglected maintenance, dirty coils, clogged filters, electrical component failure, refrigerant leaks, and long-term exposure to weather conditions.

Can rooftop units be repaired, or do they need full replacement?

Many rooftop units can be repaired if the issue is caught early. Replacement is typically only recommended when the system is over 15–20 years old, inefficient, or when repair costs approach the cost of a new unit.

How quickly can Air Plus respond to a rooftop unit issue?

Air Plus offers fast response times for commercial HVAC calls across Greater Cincinnati, with same-day service available in many cases. Emergency situations are prioritized to minimize business disruption.

Do you service all brands of rooftop units?

Yes. Air Plus services all major commercial HVAC brands including Carrier, Trane, Lennox, Rheem, and York. As a Carrier Factory Authorized Dealer, we also provide factory-standard service for Carrier rooftop systems.

Rooftop Units & NATE-certified Technicians