Long Island Heating Repair Services

Fast, 24/7 Emergency Heating Service

When your heating fails during a frigid winter, the situation is more than uncomfortable—it's an emergency. For Long Island homeowners, a dead furnace or boiler brings the immediate risk of frozen pipes and costly water damage. You need a fast solution from a professional you can trust.

That is where we come in. Since 1986, Sal Manzo Plumbing, Heating & Cooling Inc. has been the trusted name for heating system repairs. Our licensed, background-checked, and constantly trained technicians have the expertise to diagnose and fix your problem correctly, and we back our repairs with a one-year guarantee.

For heater repair from local professionals, contact Sal Manzo Plumbing, Heating & Cooling Inc. online or give us a call at (516) 347-7696.

Signs You Need Emergency Heater Repairs

Some heating issues simply can’t wait for regular business hours. Below, we have listed situations where immediate action is necessary to protect your home and your family.

• Strong Gas Odor: If you smell a sulfur-like odor in your home, it could indicate a serious leak. Leave the area and report it to the gas company immediately. Do not use any electrical devices or open flames while exiting.
• Alarming Noises: Sudden loud banging, screeching, or other unusual noises from your appliances or systems can signal a malfunction. If the noise persists, turn off the equipment and contact a professional for an inspection. 
• Dangerously Low Temperatures: Extremely low indoor temperatures can pose serious health risks, especially for vulnerable individuals like children, the elderly, or those with compromised health.

If you’re unsure whether your issue qualifies as an emergency, call us. We will evaluate the situation and, if needed, dispatch a technician to resolve the problem.

During peak winter in Long Island, extreme cold can make heating failures a true emergency, especially in areas along the South Shore or in rural communities where temperatures drop quickly overnight. Because heating outages can also risk frozen pipes and property damage, we prioritize urgent calls for emergency heating repair in Long Island. If the National Weather Service issues a cold weather advisory, it’s wise to have a heating professional ready to respond. Our familiarity with local utility services and rapid mobilization ensures you can reach us when you need prompt help, whether it’s late at night or during a holiday storm.

Quick & Effective Heating System Repairs

With over 30 years of experience in the field, our team has seen — and repaired — it all. No matter what kind of heating system you have, you can trust us to handle the job. Here are some of the types of systems we work with:

• Gas and Oil Furnace Repairs
• Gas and Oil Boiler Repairs
• Wall-Hung Boiler Repairs
• Air-to-Air Heat Pump Repairs
• Geothermal Heat Pump Repairs
• Water Heater Repairs or Replacements
• Pool Heaters

If your system isn’t listed here, don’t worry. Our technicians have extensive training to address a wide range of heating equipment problems. Give us a call, and we will look at how to get your system back on track.

Heating systems in Long Island homes vary, from older boiler setups in classic neighborhoods to new high-efficiency furnaces in recent developments. Our team diagnoses and repairs different makes and models, ensuring your equipment operates safely and reliably throughout the season. We perform thorough checks to identify worn parts, electrical issues, and performance shortfalls that develop with local climate stress. Every repair reflects your system’s age, manufacturer recommendations, and compliance with Nassau and Suffolk County codes. Whether you own a single-family home or manage a multi-unit property, we tailor our solutions to meet your needs in a cost-effective way.

What Should I Expect from a Heating Repair Visit?

We understand that inviting a technician into your home can feel uncomfortable. That’s why we are committed to making the process as smooth as possible. With our team, you can expect clear, respectful communication and prompt, effective repairs.

• Free Estimates
  We provide free estimates on HVAC units, so you’ll know the cost of repairs upfront. There are no hidden fees or surprises.
• Quick & Professional Repairs
  We work efficiently without cutting corners to restore your comfort fast. Our team resolves 99.67% of heating issues the very same day. 
• Comprehensive Guarantees
  We offer a one-year guarantee on all heating and cooling repairs, as well as a two-year workmanship warranty on full system replacements.

When you schedule a visit, we coordinate appointment times that fit your schedule, including evenings and weekends, to ensure minimal disruption. Our technicians arrive in fully stocked vehicles, ready to address a wide range of system issues without delays. We protect your floors and surroundings by wearing shoe covers and using mats, so your home stays clean throughout the service. Explaining our findings in clear language, we walk you through your repair options and provide honest answers to any questions. By focusing on transparency and respect, we have built strong relationships with homeowners, property managers, and community associations throughout Nassau and Suffolk counties.

Fast & Reliable Heater Repairs When You Need It Most

For over three decades, Sal Manzo Plumbing, Heating & Cooling Inc. has been the trusted name for heating repairs on Long Island. Thousands of customers have placed their trust in our team over the years, and for good reason.

When you choose us, you receive prompt service, fair pricing, and a commitment to your satisfaction. We offer same-day repairs, weekend appointments, and a full range of guarantees to make the repair process as stress-free as possible.

Residents from Mineola to Sayville rely on our prompt response, especially during peak winter months when system failures are more common and the need for heat is urgent. Our licensed and insured technicians work efficiently to restore warmth while treating your property with care and respect. With a deep understanding of local rules and seasonal patterns, we’re equipped to handle the unexpected and support our clients every step of the way. Whether you have a forced-air furnace or a traditional radiator setup, our goal remains consistent: dependable repairs and unmatched service for every family in our community.

Contact us online or call us at (516) 347-7696 to schedule your repair and get back to enjoying a warm, comfortable home.

Preventive Maintenance Tips for Long Island Homeowners

Regular maintenance is your best defense against unexpected heater breakdowns, especially during the harsh winters of Nassau and Suffolk Counties. Homeowners who schedule annual inspections before the first cold snap often enjoy more reliable performance, improved air quality, and lower energy bills. Simple actions taken throughout the year, like checking your air filters every month and keeping vents clear from dust or furniture, support consistent heating and prevent issues from building up unnoticed.

We recommend setting a reminder in early fall to have your system inspected by a licensed professional. Maintenance visits typically include checking combustion components, assessing the thermostat, lubricating moving parts, tightening electrical connections, and ensuring the safe operation of gas or oil systems. For coastal homes, extra care should be taken to check for corrosion, as the salty air can speed up wear on critical components. Proactive maintenance also catches early signs of trouble, giving you more time to plan repairs and budget for eventual upgrades. Staying ahead of local weather patterns, such as sudden cold snaps and storm systems, helps your family remain comfortable no matter what the forecast holds.