Commercial Rooftop Unit (RTU) Repair & Replacement in Southeast Michigan
Commercial Rooftop HVAC Repair, RTU Replacement & Preventive Maintenance Throughout Livonia, Detroit & Metro Detroit
Commercial rooftop units are among the most common HVAC systems used in office buildings, retail centers, restaurants, warehouses, schools, industrial properties, and commercial facilities throughout Southeast Michigan. When an RTU stops operating properly, the effects can quickly spread throughout your building—from uncomfortable temperatures and poor airflow to rising energy costs and unexpected business disruptions.
J.F. Jacobs, Inc. provides professional commercial rooftop unit repair, RTU replacement, installation, troubleshooting, and preventive maintenance throughout Livonia, Detroit, Metro Detroit, and Southeast Michigan.
With more than 45 years of commercial HVAC experience, our technicians understand the demands placed on rooftop equipment by Michigan’s hot summers, freezing winters, and rapidly changing weather conditions.
Whether you need an urgent rooftop HVAC repair, help diagnosing an underperforming system, a complete RTU replacement, or a preventive maintenance program, J.F. Jacobs provides practical commercial HVAC solutions focused on reliability, efficiency, and long-term equipment performance.
Commercial Rooftop Unit Repair
Commercial rooftop HVAC systems operate for thousands of hours every year. Compressors, motors, belts, coils, electrical components, burners, controls, and other components eventually wear down and can cause the system to lose capacity or fail completely.
Our technicians provide comprehensive commercial rooftop unit repair for businesses throughout Southeast Michigan.
We diagnose and repair problems including:
- No heating or cooling
- Weak or restricted airflow
- Refrigerant leaks
- Frozen evaporator coils
- Dirty condenser or evaporator coils
- Compressor failures
- Blower motor problems
- Failed belts
- Electrical failures
- Faulty contactors and capacitors
- Thermostat and control problems
- Ignition and heating problems
- Drainage issues
- Short cycling
- Unusual noises or vibration
- Inconsistent building temperatures
Our goal is not simply to replace the first failed component we find. Proper commercial HVAC troubleshooting means identifying the underlying cause of the problem so the appropriate repair can be made.
RTU Repair in Detroit, Livonia & Metro Detroit
Businesses searching for RTU repair in Detroit need a commercial HVAC contractor familiar with both rooftop equipment and the demands of large commercial buildings.
J.F. Jacobs services rooftop HVAC systems throughout Detroit, Livonia, and surrounding Metro Detroit communities.
Our technicians work with facility managers, property managers, building owners, maintenance departments, and business operators to minimize downtime and restore reliable heating and cooling.
From a single rooftop unit serving a small commercial property to multiple RTUs supporting a large facility, our team can troubleshoot and service commercial rooftop equipment throughout Southeast Michigan.
Commercial RTU Troubleshooting
A rooftop HVAC problem isn’t always caused by the component that first appears to have failed.
For example, a frozen evaporator coil could be related to restricted airflow, dirty filters, a blower problem, refrigerant issues, or another underlying system condition.
Effective commercial RTU troubleshooting requires looking at the complete system.
Our technicians evaluate operating conditions, controls, electrical components, airflow, heating and cooling performance, and other factors to determine why your rooftop equipment isn’t performing correctly.
RTU Not Cooling
If a commercial rooftop unit is running but the building isn’t cooling properly, possible causes can include:
- Dirty condenser coils
- Restricted airflow
- Refrigerant problems
- Compressor issues
- Frozen evaporator coils
- Failed condenser fans
- Electrical problems
- Thermostat or control failures
Continuing to operate a struggling system can place additional stress on components and potentially turn a smaller repair into a more expensive failure.
RTU Not Heating
Commercial rooftop units may use gas heat, electric heat, heat pumps, or other heating configurations.
Heating failures may result from problems with:
- Ignition systems
- Burners
- Gas valves
- Heat exchangers
- Flame sensors
- Electrical components
- Heat pump components
- Thermostats and controls
During a Michigan winter, a loss of commercial heating can quickly become an urgent facility issue.
Rooftop Unit Has Poor Airflow
Weak airflow can make some areas of a commercial building uncomfortable even when the rooftop unit itself appears to be operating.
Potential causes include:
- Dirty filters
- Failed blower motors
- Worn or broken belts
- Dirty evaporator coils
- Damper problems
- Duct restrictions
- Control issues
Correcting airflow problems can improve both building comfort and HVAC efficiency.
RTU Keeps Turning On and Off
Frequent starting and stopping, commonly called short cycling, can increase energy consumption and place unnecessary wear on compressors and other components.
Short cycling may be caused by control problems, airflow restrictions, refrigerant issues, electrical problems, equipment sizing, or other system conditions.
Rooftop HVAC Unit Is Making Unusual Noises
Grinding, squealing, rattling, banging, or excessive vibration should not be ignored.
These sounds may indicate problems with belts, bearings, fan assemblies, motors, compressors, panels, or other mechanical components.
Scheduling service early can help prevent additional equipment damage.
Signs Your Commercial Rooftop Unit Needs Repair
Some RTU failures happen suddenly, but many provide warning signs before the system stops working entirely.
Contact J.F. Jacobs if you notice:
- Uneven temperatures throughout the building
- Increasing heating or cooling costs
- Weak airflow
- Hot or cold areas
- Unusual equipment noises
- Excessive vibration
- Frequent cycling
- Water around the system
- Unusual odors
- Difficulty maintaining thermostat settings
- Frequent service calls
- Longer operating cycles
- Declining heating or cooling capacity
Early diagnosis can often prevent a minor equipment problem from developing into a larger repair.
Emergency Commercial Rooftop HVAC Repair
A complete rooftop HVAC failure can disrupt operations, create uncomfortable or unsafe building conditions, and potentially affect equipment or inventory.
J.F. Jacobs provides 24/7 emergency commercial HVAC service for businesses throughout Southeast Michigan.
Emergency RTU problems can include:
- Complete loss of cooling
- Complete loss of heat
- Electrical failures
- Compressor failures
- Major refrigerant problems
- Frozen coils
- Blower failures
- Control failures
- Repeated system shutdowns
- Critical temperature problems
Our technicians work to identify the problem and restore system operation as quickly as practical while providing recommendations for any additional repairs that may be required.
Commercial RTU Replacement
Repair isn’t always the best financial decision.
As commercial rooftop units age, efficiency can decline while repair frequency and operating costs increase. Eventually, continuing to repair an aging RTU can cost more than investing in replacement equipment.
J.F. Jacobs provides professional RTU replacement for commercial properties throughout Southeast Michigan.
We evaluate your existing equipment, building requirements, repair history, system condition, and long-term operating needs before recommending replacement.
When Should a Commercial Rooftop Unit Be Replaced?
Replacement may be worth considering when:
- The RTU requires increasingly frequent repairs
- Major components have failed
- Replacement parts are becoming difficult to obtain
- Energy costs continue increasing
- The unit struggles to maintain temperature
- Heating or cooling performance has declined significantly
- The system uses outdated technology
- Repair costs are becoming difficult to justify
- Your facility’s heating or cooling requirements have changed
Age alone does not determine whether an RTU should be replaced. Equipment condition, maintenance history, efficiency, repair costs, and future facility needs should all be considered.
Benefits of Replacing an Aging Rooftop Unit
Modern commercial rooftop HVAC equipment can provide substantial improvements over aging systems.
Depending on the equipment and application, a new RTU may provide:
- Improved energy efficiency
- More consistent indoor temperatures
- Better airflow
- Improved system controls
- Reduced repair frequency
- Lower maintenance costs
- Greater equipment reliability
- Better humidity management
- Improved occupant comfort
A properly planned replacement also gives facility managers an opportunity to make sure equipment capacity continues to match the needs of the building.
Industries We Serve
J.F. Jacobs provides commercial rooftop unit repair, replacement, and maintenance for businesses and institutions throughout Southeast Michigan.
Office Buildings & Corporate Campuses
J.F. Jacobs, Inc. provides complete HVAC solutions for offices and corporate campuses, ensuring consistent temperature control, improved air quality, and reduced downtime through preventative maintenance.
Hospitals, Clinics, & Senior Housing
We deliver HVAC systems designed for healthcare environments where air purity and reliability are essential. Our experts maintain climate control to protect patient comfort and facility compliance.
Restaurants, Grocery Stores, & Food Service
We keep your food service operations running smoothly with dependable HVAC, ventilation, and refrigeration maintenance for kitchens, grocery stores, and restaurants.
Schools, Universities, & Educational Facilities
Our team provides reliable heating and cooling systems that enhance comfort and indoor air quality in classrooms, auditoriums, and large educational campuses.
Retail Centers & Shopping Malls
J.F. Jacobs, Inc. supports retail and commercial centers with efficient HVAC service and maintenance to improve customer experience and reduce energy consumption.
Industrial & Manufacturing Facilities
We handle heavy-duty HVAC systems for industrial operations, ensuring temperature stability and efficient ventilation in large-scale production spaces.
Property Management & Multi-Use Facilities
Partnering with property managers, we maintain HVAC systems across multi-tenant and mixed-use buildings, providing flexible service plans and fast response times.
Commercial Rooftop HVAC Installation
Proper installation is essential to the performance and service life of a commercial rooftop unit.
Even high-quality equipment can experience efficiency and reliability problems when improperly sized, configured, or installed.
J.F. Jacobs provides commercial RTU installation for new equipment and replacement projects throughout Southeast Michigan.
Our team considers factors such as:
- Building size and layout
- Heating and cooling loads
- Existing ductwork
- Ventilation requirements
- Equipment capacity
- Energy efficiency
- Electrical requirements
- Existing curb configuration
- Controls
- Long-term maintenance requirements
Our goal is to install a rooftop HVAC system that delivers reliable performance while supporting your facility’s long-term operational needs.
Schedule Commercial Rooftop Unit Service
If your rooftop HVAC unit is underperforming, aging, or experiencing frequent breakdowns, J.F. Jacobs can help.
Whether you need rooftop unit repair, replacement, installation, or preventive maintenance, our team is ready to provide dependable commercial HVAC support.
Call (947) 600-9866 or request a service online today to schedule maintenance or receive a custom quote.
Why Choose J.F. Jacobs for Commercial RTU Service?
For more than 45 years, J.F. Jacobs has helped businesses throughout Southeast Michigan maintain commercial HVAC and mechanical systems.
Businesses choose our team for:
- More than 45 years of commercial HVAC experience
- Experienced commercial HVAC technicians
- 24/7 emergency service
- Commercial rooftop unit troubleshooting
- RTU repair and replacement
- Preventive maintenance programs
- Commercial refrigeration expertise
- Commercial boiler service
- Support for single and multi-unit facilities
- Long-term commercial HVAC partnerships
We focus on practical solutions that help businesses reduce downtime, control operating costs, and improve equipment reliability.
Frequently Asked Questions About Commercial Rooftop Units
What is a commercial rooftop unit?
A commercial rooftop unit, commonly called an RTU, is a packaged HVAC system typically installed on the roof of a commercial building. Depending on its configuration, one unit can provide heating, cooling, ventilation, and air circulation for designated areas of the building.
What are the most common commercial RTU problems?
Common problems include refrigerant leaks, compressor failures, dirty coils, frozen evaporator coils, blower problems, worn belts, electrical failures, drainage issues, thermostat problems, control failures, and heating component failures.
How often should a commercial rooftop unit be maintained?
Most commercial rooftop systems should receive professional preventive maintenance at least twice per year, typically before the primary cooling and heating seasons. Equipment operating under heavy loads or in demanding environments may require more frequent attention.
How do I know whether to repair or replace my RTU?
The decision depends on the equipment’s age, condition, repair history, efficiency, availability of replacement parts, cost of the current repair, and your facility’s long-term requirements. J.F. Jacobs can evaluate the system and help determine which option provides better long-term value.
Do you provide emergency commercial rooftop unit repair?
Yes. J.F. Jacobs provides 24/7 emergency commercial HVAC service for businesses throughout Livonia, Detroit, Metro Detroit, and Southeast Michigan.
Can J.F. Jacobs service multiple rooftop units at one facility?
Yes. We service facilities operating single or multiple commercial rooftop units and can develop preventive maintenance programs to help track equipment condition, identify developing problems, and plan future repairs or replacements.
What areas do you serve for commercial rooftop unit repair?
J.F. Jacobs provides commercial rooftop unit repair throughout Livonia, Detroit, Dearborn, Novi, Farmington Hills, Southfield, Troy, Canton, Westland, Plymouth, Warren, Sterling Heights, and communities throughout Wayne, Oakland, and Macomb counties.
Schedule Commercial Rooftop Unit Repair
If your commercial rooftop unit isn’t heating or cooling properly, don’t wait for a minor performance issue to become a complete system failure.
J.F. Jacobs provides commercial rooftop unit repair, rooftop HVAC repair, RTU replacement, installation, troubleshooting, and rooftop unit maintenance throughout Livonia, Detroit, Metro Detroit, and Southeast Michigan.
Whether you’re responsible for a single commercial property or a facility with multiple rooftop systems, our team can help you develop the right repair, maintenance, or replacement strategy.