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SERVICES.Commercial HVAC

ROOFTOP UNIT (RTU) REPAIR & SERVICE

In Anne Arundel County

5-Star Service

Licensed & Insured

Same-Day Service Available

Locally Owned & Operated

When a rooftop unit goes down, so does your business's comfort and productivity. Lighthouse HVAC diagnoses and repairs commercial RTUs fast — minimizing downtime and keeping your property comfortable, so your operations never skip a beat.

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Common Commercial HVAC Problems We Solve

A struggling rooftop unit means uncomfortable customers, unproductive staff, and rising energy costs. Our technicians quickly diagnose and repair RTU issues, restoring reliable performance and keeping your business running smoothly.

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No Heating or Cooling

Weak or Uneven Airflow

Rooftop Unit Won't Start

Rising Energy Costs

Short Cycling

Strange Noises or Odors

Refrigerant Issues

Frequent Breakdowns

Why Proper RTU Service Matters

Your rooftop unit keeps your entire business comfortable. Servicing it right protects your operations, your energy costs, and the comfort of everyone in your building.

Higher Utility Bills

Reduced Cooling Performance

Unexpected System Failure

Shortened Equipment Lifespan

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Complete RTU Diagnosis

02

Complete RTU Diagnosis

03

Upfront Pricing Approval

04

Fast, Professional Repair

05

What To Expect During Your Service Visit

Our Process

What To Expect During Your Repair Visit

Why Homeowners Choose Lighthouse

Experienced Technicians

Skilled commercial HVAC professionals.

Honest Recommendations

Solutions based on your operation's needs.

Fast Response Times

Prompt commercial service to minimize downtime.

Long-Term Reliability

Repairs focused on lasting performance.

What Homeowners Are Saying

See why local homeowners trust Lighthouse HVAC for repairs, maintenance, and indoor comfort solutions.

“What a great company this is. I called at 3:00 on a Friday afternoon and they had a tech in my area who was there at 6. He quickly diagnosed the problem and got us up and running again. Very friendly and professional all around. I highly recommend and will definitely use them in the future.”

-- Jennifer Karns

“Our furnace stopped working during one of the coldest nights of the year. Lighthouse HVAC arrived quickly, explained everything clearly, and had us warm again the same day.”

-- Sarah Ms

“I HIGHLY recommend this company! We were desperate, and they came to the rescue after hours so that my kids would be able to sleep in a cool house! I will use them for my business as well.”

-- Connor Rickard

Prevent Costly Downtime Before It Happens

Unexpected rooftop unit failures disrupt your operations and hit your bottom line. A Lighthouse Commercial Preventative Maintenance Program keeps your RTUs inspected, serviced, and reliable — catching small issues before they shut your business down.

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Still HaveQuestions? Let Us Help

How fast can you respond to a commercial RTU breakdown?

We understand that downtime costs your business money, so we prioritize fast commercial response. Our team works to diagnose and repair rooftop unit failures quickly, minimizing disruption to your operations and getting your building comfortable again as soon as possible.

A rooftop unit is a self-contained commercial HVAC system installed on the roof to save interior space. RTUs handle heating and cooling for offices, retail spaces, restaurants, and other commercial properties. Because they run hard year-round, they need experienced service to stay reliable.

It depends on the unit's age, condition, and repair history. Many RTU issues are worth repairing, especially on newer units. For older units with frequent failures, we'll give you an honest cost comparison so you can make the smartest decision for your business and budget.

Our technicians are experienced across a wide range of commercial rooftop units and brands. We diagnose and repair the specific system your property relies on, so you get knowledgeable service rather than trial-and-error part replacement.

Yes. Most RTU failures start as small issues that go unnoticed. A commercial preventative maintenance program catches these early, keeps your units running efficiently, and dramatically reduces the risk of an unexpected breakdown during business hours.

Supporting Businesses Throughout Anne Arundel County

Providing professional rooftop unit repair and service for offices, retail spaces, medical facilities, restaurants, and other commercial properties across Annapolis, Severna Park, Crofton, Odenton, Glen Burnie, and surrounding communities.

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Rooftop Unit Down?

Don't let a rooftop unit failure disrupt your business. Request commercial service today for fast, professional RTU repair that gets your operations back to normal.

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