HVAC Service in Long Island
The Number One Company Nassau County Trusts to Keep Your Family Comfortable in Every Season!
Long Island's unpredictable weather demands a heating and cooling system you can count on. When your unit fails or energy bills climb, you need fast, effective solutions to restore your home's comfort and improve its energy efficiency without delay. We understand these challenges and are here to help.
Since 1986, our team at Sal Manzo Plumbing, Heating & Cooling Inc. has provided the expert HVAC services Long Island residents trust. Our licensed and certified technicians are committed to delivering honest, high-quality heating and air repair. We have the expertise to diagnose and resolve your HVAC issues correctly the first time.
For dependable heating and air repair, call us today at (516) 347-7696, or contact us online.
We Maintain, Repair & Replace All Heating & Air Conditioning Systems
Gas, Geothermal, Electric, Oil & Propane Systems
- Boilers
- Heat Pumps
- Ductless Mini Splits
- Hot Air Furnaces
Our team manages a wide range of systems, from modern high-efficiency units to older, conventional models. We address the demands of each energy source, allowing us to deliver reliable service tailored to your system. You can depend on us to provide complete assessments and clear recommendations for your home’s heating and cooling needs.
We use trusted diagnostic tools during every service call to identify the cause of system inefficiencies and help prevent future issues. For homes in older Long Island communities, we help you navigate regulations and local permit requirements, ensuring every job complies with municipal codes. We also communicate every repair and replacement step clearly, so you always know what’s happening inside your home and what your options are.
Comprehensive HVAC Installation Services in Nassau County
Here at Sal Manzo Plumbing, Heating & Cooling Inc., we recognize that every home has unique needs for optimal heating and cooling system performance. Our HVAC installation company creates solutions based on your requirements, preferences, and budget. Whether you plan a new installation or need to replace an existing system, our technicians manage every project with attention to detail. Our installation process includes an initial consultation, complete system design and selection, and careful installation. We aim to keep disruption to your routine to a minimum.
We offer a range of top-quality HVAC brands and models, so you receive efficient and advanced technology. Our goal is to keep your home comfortable while boosting energy efficiency, lowering environmental impact, and helping you save on utility costs. When you choose us, you work with an HVAC contractor in Long Island that uses local experience and state-of-the-art technology to deliver quality solutions.
Our team stays updated on incentive programs and local rebates that Nassau County and New York State sometimes offer for energy-efficient upgrades. We help you understand how some new systems can lower your long-term costs and qualify for local benefits.
What to Expect During an HVAC Replacement in Long Island
Deciding to replace your HVAC system is a significant investment, so knowing what to expect during the process can make the transition smoother. The replacement starts with a thorough inspection of your current system and home layout. Our team evaluates factors like insulation, square footage, and existing ductwork to determine which type and size of equipment will deliver the best performance for your home.
Key Steps in the HVAC Replacement Process
We help you compare available models, highlighting energy ratings, local rebates, and features that matter to families in Nassau and Suffolk Counties—such as humidity control for coastal summers and robust heating for winter months. Once you select your new system, our team schedules the installation at a time that fits your life. We remove your old unit carefully, protect your property, and install the new one in line with manufacturer and municipal standards. We always complete a system check and guide you through your new controls, so you know exactly how to get the comfort you expect.
Flexible Payment Options & Transparent Pricing for HVAC Services
Budget is a major consideration for families planning HVAC service in Long Island. At Sal Manzo Plumbing, Heating & Cooling Inc., we make payment and pricing simple and transparent. Before we start any work, we discuss your project scope, provide clear pricing, and answer your questions—so you never face surprise charges. We offer a no-surprise billing policy: you pay by the job, not by the hour.
For larger projects or replacements, we provide a range of flexible payment options, including financing, to help ease the cost without lowering the quality of your home’s heating and cooling. Our billing process is straightforward, and we provide digital invoices, making payment fast and easy. From routine HVAC maintenance in Long Island to full system installations, our team ensures you know your financial commitment upfront, allowing you to plan confidently for comfort in every season.
Our Services
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Leak Detection & Repair
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Central Air Conditioning
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Plumbing Services
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Furnace Services
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Kitchens & Bathrooms
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Water Treatment Services
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HVAC Services
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Drain Cleaning & Hydrojetting
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Gas Line Plumbing
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Water Heater Services
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Boiler Services
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Ductless Mini-Split Systems
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Heat Pumps
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Heating Repair & Replacement
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Sewer Line Maintenance
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Piping & Repiping
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Water Line Services
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Pool & Spa Plumbing
Don't Shiver in the Winter, Nor Sweat in the Summer!
Our technicians handle any heat, hot water, or cooling emergency you face. They make sure your HVAC equipment works reliably and runs at peak efficiency. Our repair experience covers all makes, models, and types—oil, gas, propane, electric, geothermal. Your system’s age doesn’t affect our service; whether you need routine maintenance or a major HVAC repair in Long Island, Sal Manzo’s team is ready to help. We also offer a FREE carbon monoxide check with every heating repair.
We focus on your comfort and safety with fast-response emergency services, available day or night. Our comprehensive maintenance plans keep your units efficient and can extend their lifespan, saving you money over time. By choosing us, you invest in a service that values your home and stands by a promise of high standards.
Many Long Island homes experience extra wear on HVAC systems from coastal air, heavy pollen each spring, and sudden winter storms. We assess how these local factors impact your equipment, using data to recommend upgrades or repairs tailored to Nassau County’s weather extremes. For emergencies, our strategically-located team reaches most neighborhoods quickly, so you spend less time waiting for service—even during peak seasons or off-hours.
Heating & Cooling Services
- Gas and Oil Furnace Repairs
- Gas and Oil Boiler Repairs
- Wall-Hung Boiler Repairs
- Air to Air Heat Pump Repairs
- Geothermal Heat Pump Repairs
- Ductless Mini Split Repairs
- Central Air Conditioning Repairs
- Water Heater Repairs or Replacements
- Humidifier Repairs
- Thermostat Repairs
- Precision Heating Tune-up & Safety Inspections
- Precision Cooling Maintenance
- Carbon Monoxide & Efficiency Testing
- Humidification Systems
- Pool Heaters
With every repair and tune-up, we provide clear maintenance reports so you know exactly what we checked and adjusted. We review the condition of your system, recommend care tips, and set reminders for future visits. Our team welcomes your questions and takes time to explain the benefits of each solution for your year-round comfort.
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Insured for Your Peace of MindOur team is fully licensed, insured, and vetted.
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Available for You on WeekendsDon't stress about weekday bookings. We come when it's convenient!
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Available for Emergency HelpGet the immediate help you need, whenever you need it.
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Affordable Financing OptionsWe offer a variety of options. Call to learn about the details.
Experience the Sal Manzo Plumbing, Heating & Cooling Difference:
- Same Day Service/Flexible Scheduling
We schedule service at a time that works for you. We complete 99.67% of all heating and cooling repair service calls the same day. - Emergency Replacements!
- Convenient Two-Hour Windows
- Nights, Weekends, and Holidays at No Extra Charge
Most companies close at 5 PM, but 57% of our heating customers have repairs after 5 PM. We’ve extended our hours—appointments are available until 8 PM to fit your schedule, and we work on weekends and holidays too. Experienced call-takers are on duty until 4 PM Monday-Friday. After hours, calls go to an on-call manager. - Worry-Free Pricing
We charge by the job, not by the hour, and will tell you the price before we start any heating or cooling repair. No surprises—ever. - Ironclad Guarantee
We guarantee our heating and cooling repairs for one full year—no questions asked. Enjoy a one-year parts and labor warranty on all heating repairs, and a two-year workmanship warranty on full system replacements. - Respect for You, Your Home and Property
Our heating and cooling repair technicians wear shoe covers, use drop cloths, and treat your home as if it were their own. - Your Security and Peace of Mind
Our heating and cooling repair technicians undergo background checks and drug testing for your safety. You receive a picture of your technician, via text, when they’re on their way—so you feel safe opening your door day or night. - Training
All our heating and cooling repair technicians have years in the business, along with continuous training to stay current with new technology. - 100% Customer Satisfaction
If you are not 100% satisfied with your heating or cooling repair or replacement service, we will do what it takes to make it right.
Our focus on customer satisfaction means we stay flexible. Whether you’re facing a minor issue or a critical system failure, our team delivers solutions tailored to your needs. We invest in the latest HVAC technology and continuously update our methods so we stay at the forefront of service quality and innovation. By trusting us, you choose a partner committed to your comfort and safety.
We strive to make every step of your HVAC experience simple and stress-free. From your first call, our office staff provide clear scheduling, regular updates, and thoughtful answers to your concerns. For homes in Long Island, we back our work with full insurance and up-front communication about warranties—making sure you can make maintenance and installation decisions with confidence. We conduct follow-ups after major services to check on your satisfaction and address any lingering concerns, building relationships that last beyond a single visit.
Common HVAC Problems & Our Solutions
HVAC systems on Long Island face unique challenges from frequent temperature swings, salt in the air near the coast, and spring pollen. With time, these factors can cause rust, short cycling, reduced airflow, or thermostat issues. Our team addresses these problems with thorough inspections, replacement of worn parts, coil and filter cleaning, and careful adjustments that restore performance. We keep parts for leading brands in stock, so our technicians can complete most repairs on the first visit. For repeat issues, we personalize maintenance advice to your home’s age, insulation, and usage patterns to help your system run reliably year-round.
Emergency HVAC Service: What Long Island Homeowners Should Know
Sudden HVAC breakdowns rarely follow a convenient schedule, and losing heat during a Long Island winter threatens comfort and safety. Our team is available evenings, weekends, and holidays without extra charges. You can always reach someone real—no automated systems or long waits. We respond quickly, keep you updated about arrival times, and clearly explain every step. We assess, review available options, and complete repairs using reliable replacement parts. Our technicians share recommendations to help prevent future emergencies and send maintenance reminders so your home’s equipment remains ready for every season. Responsive local service delivers real peace of mind, whether you’re in Nassau County or Suffolk on a humid summer afternoon or cold winter night.
FAQ: Your HVAC Questions Answered
What Should I Do If My HVAC System Breaks Down Suddenly?
If your HVAC system suddenly breaks down, first check for simple issues like a tripped breaker or blown fuse. If those aren’t the problem, call a professional right away—especially during extreme temperatures. Sal Manzo Plumbing, Heating & Cooling Inc. offers emergency HVAC service in Nassau County focused on your comfort and safety. We assess the situation and recommend repairs to restore comfort as fast as possible.
How Often Should I Schedule HVAC Maintenance?
To keep your system running at its best, schedule HVAC maintenance twice a year—once in the spring for cooling, once in the fall for heating. This schedule helps your system run efficiently and can prevent unexpected breakdowns. Our maintenance plans at Sal Manzo Plumbing, Heating & Cooling Inc. address Nassau County’s climate challenges and give you year-round peace of mind.
Why Is My Heating Bill So High?
High heating bills can result from poor insulation, outdated equipment, or an inefficient HVAC system. Older systems often work harder to maintain your desired temperature, raising energy use. Upgrading to a more efficient model or maintaining your system may help lower energy costs. Our energy-efficient heating options can reduce your utility bills and increase home comfort.
What Are the Benefits of Ductless Mini Splits?
Ductless mini splits offer several advantages, especially for homes without ductwork or with rooms needing independent temperature control. They give flexibility in interior layout and help save energy by allowing you to heat or cool only the rooms in use. This brings greater comfort and can cut energy costs. At Sal Manzo Plumbing, Heating & Cooling Inc., we install and maintain ductless systems to fit your property’s specific needs.
How Can I Improve Indoor Air Quality in My Home?
Improving indoor air quality is key to a healthy home. Regular HVAC maintenance, using quality air filters, and adding air purifiers and humidifiers can make a big difference. Proper ventilation helps circulate fresh air and cut down on indoor pollutants. Sal Manzo Plumbing, Heating & Cooling Inc. offers complete solutions to improve your home’s air quality, helping your family breathe easier all year.
Get in Touch With Sal Manzo Today!
At Sal Manzo Plumbing, Heating & Cooling, we protect your home and your budget. Call the Sal Manzo Team today at (516) 347-7696, and we will be on our way.