Rooftop Unit Services

Rooftop HVAC units are the backbone of many commercial heating and cooling systems. Commonly found on office buildings, retail stores, restaurants, warehouses, schools, churches, and industrial facilities, rooftop units provide reliable climate control while maximizing usable interior space. When a rooftop unit fails, businesses can experience uncomfortable temperatures, lost productivity, customer complaints, and costly downtime.

Mastercraft Mechanical & Plumbing provides professional rooftop unit repair, maintenance, replacement, and installation services throughout Central Pennsylvania. Whether you need emergency repairs, preventative maintenance, or a complete rooftop unit replacement, our team has the experience and equipment to keep your facility operating efficiently year-round.

What We Do

Our rooftop unit services include:

• Rooftop unit repair

• Rooftop unit installation

• Rooftop unit replacement

• Emergency rooftop unit service

• Commercial HVAC diagnostics

• Electrical troubleshooting

• Refrigerant leak detection and repair

• Compressor replacement

• Fan motor replacement

• Belt replacement and adjustment

• Economizer repairs

• Thermostat and control repairs

• Preventative maintenance programs

• Seasonal inspections

• Energy efficiency evaluations

• Commercial HVAC upgrades

We service many major commercial HVAC manufacturers and rooftop unit configurations.

Common Problems We Solve

• Rooftop unit not cooling

• Rooftop unit not heating

• Refrigerant leaks

• Compressor failures

• Electrical control issues

• Fan motor failures

• Poor airflow

• Uneven temperatures

• Short cycling equipment

• Thermostat communication issues

• Frozen coils

• High utility costs

• Excessive equipment noise

• Ventilation problems

Many rooftop unit failures begin as small maintenance issues that worsen over time if left unaddressed.

Signs You Need Rooftop Unit Service

You may need professional rooftop unit service if:

• Certain areas of your building are too hot or too cold

• Utility bills continue increasing

• The system struggles to maintain temperature

• Employees or customers complain about comfort

• Equipment makes unusual noises

• Airflow becomes weak

• Heating or cooling performance declines

• The unit cycles on and off frequently

• Water leaks develop around HVAC equipment

• Emergency repairs become more frequent

Early diagnosis often helps prevent expensive equipment failures and unplanned downtime.

Why Choose Mastercraft Mechanical & Plumbing

• Commercial HVAC expertise

• Emergency service available

• Preventative maintenance programs

• Experienced commercial technicians

• Honest recommendations

• Fast response times

• Energy efficiency focus

• Service throughout Central Pennsylvania

We understand that HVAC downtime affects business operations, employee productivity, and customer experience.

Frequently Asked Questions

What is a rooftop unit?

A rooftop unit, often called an RTU, is a self-contained commercial HVAC system installed on the roof of a building that provides heating, cooling, and ventilation.

How long do rooftop units last?

Most commercial rooftop units last approximately 15 to 20 years when properly maintained, although lifespan varies based on usage, maintenance, and environmental conditions.

How often should rooftop units be serviced?

Most rooftop units should be professionally serviced at least twice per year, typically before cooling season and before heating season.

What causes rooftop units to fail?

Common causes include lack of maintenance, refrigerant leaks, electrical failures, worn components, dirty coils, airflow restrictions, and aging equipment.

Is it better to repair or replace a rooftop unit?

The answer depends on the age of the unit, repair costs, energy efficiency, and overall equipment condition. We evaluate each situation individually and provide honest recommendations.

Can preventative maintenance reduce breakdowns?

Yes. Routine inspections, cleaning, and adjustments can significantly reduce emergency repairs and extend equipment lifespan.

Helpful Tips

• Schedule preventative maintenance twice annually.

• Replace filters regularly.

• Keep rooftop equipment free of debris.

• Monitor utility bills for unexpected increases.

• Address unusual noises immediately.

• Do not ignore comfort complaints from building occupants.

• Maintain service records for all HVAC equipment.

• Consider replacement planning for units approaching 15 years of age.

Service Areas

Mastercraft Mechanical & Plumbing proudly provides rooftop unit services throughout:

• Dauphin County

• Cumberland County

• York County

• Lebanon County

• Lancaster County

• Perry County

• Adams County

• Berks County

• Chester County

Facilities We Serve

• Office Buildings

• Retail Stores

• Shopping Centers

• Restaurants

• Warehouses

• Manufacturing Facilities

• Schools

• Churches

• Medical Offices

• Apartment Complexes

• Government Buildings

• Commercial Property Management Companies

Need Rooftop Unit Service?

Call Mastercraft Mechanical & Plumbing today for professional rooftop unit repair, maintenance, replacement, and installation services throughout Central Pennsylvania. Whether you're experiencing a heating or cooling failure, need preventative maintenance, or are planning a commercial HVAC upgrade, our team is ready to help keep your building comfortable, efficient, and operational year-round.