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about us

Mazz Brothers has been providing quality and reliable HVAC services to homeowners across Long Island. Our main priority is to provide every one of our customers with honest work and an excellent experience. We adhere to a strict code of ethics, always offer a high level of service, treat customers with honesty and respect, and offer fair prices upfront. Our experienced and skilled technicians design, install, service, and repair HVAC systems and parts in strict accordance with the highest industry standards across the United States. Our team values your time, so we guarantee on-time arrivals.

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It is the Mazz Brothers Difference that keeps our customers happy and satisfied—and it's why we've grown to become the leading HVAC service provider across Long Island. We pride ourselves in our on-time guarantee, highly skilled professionals, clean and friendly HVAC technicians.

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Frequently asked questions

  • What size unit do I need?
    There’s no easy answer for this one. A lot of factors will go into what size heating and cooling unit you’ll need. The type of house you own, its walls, insulation, attic space, and more can go into determining what size unit is required. A system that is too large could result in a home that’s too humid, causing problems with moisture and mold. A system that is too small will run constantly, running up your energy bill. Only a qualified heating and cooling technician can determine what size unit is best for your home
  • If I replace my outdoor unit, do I need to also replace my indoor unit?
    In most cases, the answer is yes. There are a variety of reasons why you should replace both the outdoor and indoor units simultaneously. For starters, air conditioner and heat pump outdoor units are manufactured to work with a matched indoor unit. When you mix and match units, it can result in reduced efficiency and performance. Also, if you bought your indoor and outdoor units at the same time, your indoor unit will probably be approaching the end of its useful life at about the same time as the outdoor unit. By not replacing the indoor unit too, all you’re doing is delaying the inevitable and likely paying higher energy bills at the same time. By purchasing indoor and outdoor units simultaneously, you’ll get a warranty covering the whole system, meaning that you won’t have to cover the full cost of any needed repairs to your unit during the warranty period.
  • Should I cover my unit in the fall and winter?
    While covering your unit can prevent unwanted debris from accumulating on the unit, it can also cause problems if you try to operate it with the covering in place. If you’re going on a long trip and plan to turn the unit off while you’re gone, feel free to cover it up. Just make sure you disconnect the power source before leaving.
  • How often should I have my unit serviced?
    Heating & Cooling Units need to have scheduled check-ups to make sure everything is operating properly. HVAC experts recommend an annual inspection and service call by your heating and cooling company. Technicians should inspect your system, lubricate components, and repair or replace any malfunctioning components.
  • Why are my ducts making a popping sound when the furnace starts or stops?
    Popping noises are usually indicative of ducts that are too small to manage the airflow your system is generating. Qualified air conditioner repair specialists can evaluate your ductwork and make necessary adjustments.
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