Commercial Air Conditioning Install & Repair on Long Island

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24/7 Emergency Service

Reach out to the experts at Rebmann Plumbing, Heating & Air Conditioning if you have a plumbing or HVAC emergency on Long Island. We’re here to help 24/7. If your furnace goes out in the winter or your AC stops cooling in the middle of summer, we’ll repair it day or night. Call our team at 516-746-5678 for emergency services on Long Island, Roslyn, or Port Washington, NY. Residential and commercial repairs available.

Commercial AC Repair & Replacement on Long Island, NY

Flat-roof commercial AC

Businesses and other commercial buildings on Long Island can get hot and stuffy during a typical New York summer, which is why a dependable commercial AC system is essential to keeping your space comfortable and productive.

To ensure your commercial AC equipment is operating at its best, trust our team at Rebmann Plumbing, Heating & Air Conditioning. We offer commercial AC repair, replacement, and maintenance throughout the greater Long Island region. With over 90 years of professional experience, we’re one of Long Island’s oldest and highest-rated HVAC providers.

Contact us today to schedule commercial AC replacement or repairs anywhere from Long Island to Port Washington.

24/7 Commercial Air Conditioning Repairs

An air conditioning facture can make your commercial building uncomfortably hot in a matter of hours. With our team at Rebmann Plumbing, Heating & Air Conditioning, you can count on us for fast AC repairs any time you need them. Prompt repairs can provide several benefits for your business, such as:

  • Maintaining proper comfort and air quality in your facility
  • Protecting staff and customers from heat-related illnesses
  • Prevention of further damage to the air conditioning equipment
  • Making your system last as long as possible

AC Installation & Replacement for NY Businesses

When you need a skilled team to install air conditioning equipment for your Long Island business, turn to Rebmann Plumbing, Heating & Air Conditioning. We offer free quotes for any AC installation or replacement, excellent financing to make the process as easy as possible, and decades of experience installing commercial and industrial HVAC systems.

All of our commercial AC systems are customized to meet the needs of your facility and professionally installed by our certified technicians for a long service life. We also offer excellent commercial AC maintenance services to keep your equipment in the best condition possible.

Cooling Systems We Service

We install and service all types of commercial air conditioning equipment, including:

  • Central air conditioning systems – Ideal for larger commercial spaces, these systems use ductwork to distribute cool air evenly throughout your building.
  • Packaged units – An all-in-one solution that houses the compressor, condenser, and evaporator in a single outdoor unit, saving valuable interior space.
  • Chillers – Designed for large-scale cooling needs, chillers circulate chilled water or refrigerant to cool air across expansive commercial facilities.
  • Heat pumps – A versatile option that provides both heating and cooling, making them an energy-efficient choice for year-round commercial climate control.
  • Ductless mini-splits – Perfect for buildings without existing ductwork, these systems offer flexible, zone-by-zone temperature control.

Industries We Serve

At Rebmann Plumbing, Heating & Air Conditioning, we work with businesses from a variety of industries. Rely on us to service air conditioning systems for:

  • Hospitals – Reliable cooling is critical for patient comfort, sensitive medical equipment, and strict indoor air quality standards.
  • Nursing homes – We help maintain safe, consistent temperatures for vulnerable residents who depend on properly functioning climate control.
  • Multi-resident buildings – From apartment complexes to condos, we service the AC systems that keep tenants comfortable year-round.
  • Offices – A comfortable workplace supports productivity, and we keep office cooling systems running efficiently for employees and clients alike.
  • Small businesses – Whether it’s a retail shop, restaurant, or local storefront, we provide dependable commercial AC service tailored to your needs.
  • And more! – No matter your industry, our team has the experience to keep your commercial space cool and comfortable.

Why Choose Us?

As a small company that’s been family-owned since 1930, Rebmann Plumbing, Heating & Air Conditioning can provide unmatched quality and service for businesses anywhere in the Long Island area. We have friendly, background-checked technicians, full licensing and insurance for your protection, excellent specials and discounts, and valuable savings for military personnel, veterans, and seniors. We service all brands, and we are here to help 24 hours a day.

Contact Rebmann Plumbing, Heating & Air Conditioning for top-quality commercial AC services in Garden City, Port Washington, or Roslyn.

Frequently Asked Questions About Commercial AC

Most commercial air conditioning systems should be professionally serviced at least twice a year, once in the spring before peak cooling season and once in the fall. Regular maintenance helps prevent breakdowns, extends equipment lifespan, and keeps energy costs down.
If your system is over 10 to 15 years old, requires frequent repairs, or is no longer cooling efficiently, replacement is often more cost-effective than continued repairs. Our team can assess your equipment and help you decide the best path forward.
The right size depends on your building’s square footage, layout, insulation, and occupancy. Our technicians perform a full evaluation to recommend a system that provides efficient, reliable cooling without wasting energy.
Yes, we understand that a broken AC system can disrupt business operations or put occupants at risk, especially in facilities like hospitals and nursing homes. Contact us for prompt emergency service throughout Long Island.
We provide commercial AC repair, replacement, and maintenance throughout the greater Long Island region, including areas from Long Island to Port Washington.
Routine maintenance, upgrading to a high-efficiency system, and addressing issues like leaky ductwork or outdated equipment can all help lower cooling costs. Ask our team about options tailored to your building’s needs.
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Discover the Rebmann Difference

24/7 On-Call Emergency Service
Minimum One-Year Warranty on all Products and Services
Family-Owned Since 1938
Convenient Service Partner Plans
Low Interest, Flexible Payment Financing Options
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Our Reviews

See What Your Neighbors Are Saying

I was very happy I chose to work with Rebmann. They were very professional and courteous. Finished the install in record time and back up their work as well.

Jeff F.

Jeff F.

Very happy with the service provided. The team knows what they are doing, they are professional, efficient, punctual, nice. They follow up to make sure everything is OK. I would definitely recommend.

Hubert A.

Hubert A.

First time customer and couldn’t be more happy with the service I received. Professional, caring and knowledgeable!! Will definitely call again.

Regina V.

Regina V.

Rebmann installed a new gas furnace. I couldn't have been more satisfied with the experience in every respect. Professional, competent, punctual and polite. I recommend highly. My technician and the rest of the crew were outstanding.

Eileen M.

Eileen M.

Rebmann is an excellent service provider. We've been using them for 20 years! They are always very responsive and their technicians are professional, courteous, friendly and knowledgeable.

Dennis P.

Dennis P.