Switch from oil to natural gas heating. Licensed installers, complete turnkey conversions across Nassau County.
Thousands of Nassau County homeowners still rely on oil heating systems installed in the 1960s and 1970s—a legacy of Long Island's post-war building boom when heating oil was abundant and inexpensive. Today, natural gas offers significant advantages: 25-40% lower annual heating costs, zero tank maintenance, cleaner combustion with dramatically lower carbon emissions, and elimination of the anxiety around oil delivery schedules and price volatility. Our licensed technicians handle the complete oil-to-gas conversion process from start to finish, including National Grid gas line installation coordination, equipment selection and installation, oil tank decommissioning and removal, and all Nassau County building permits and inspections.
Long Island's housing stock presents unique conversion challenges that require specialized local expertise. The 67,000+ Levittown homes built between 1947 and 1951 by Abraham Levitt & Sons were originally equipped with radiant floor heating fed by oil-fired boilers—a system that actually converts beautifully to gas with the right approach. Hicksville's post-war split-levels and high ranches typically have oil-fired warm air furnaces with existing ductwork, making the equipment swap straightforward while the real complexity lies in routing the gas service line from the street. Garden City's pre-war colonials and Tudor homes often have converted coal-to-oil boilers in basement mechanical rooms, where space constraints require careful planning for new gas equipment placement. Syosset and Jericho homes built in the 1960s-1980s frequently have oil-fired hydronic systems with copper or cast iron baseboard radiation—these convert efficiently to high-efficiency gas boilers like the Navien NCB or Viessmann Vitodens, often achieving AFUE ratings above 95% compared to the 78-82% efficiency of their aging oil burners. Our conversion team works directly with National Grid's residential gas extension program, which can significantly offset the cost of bringing gas service to your street if it's not already available. We've completed over 300 oil-to-gas conversions in Nassau County and understand the specific permitting requirements in each township—from Hempstead to Oyster Bay, North Hempstead to the Village of Garden City. Every conversion includes a complete combustion analysis, carbon monoxide safety testing, and thermostat recalibration to ensure your new gas system operates at peak efficiency from day one.
Everything handled — from National Grid coordination to oil tank removal
Licensed gas pipe installers route new gas service from the meter to your mechanical room. We coordinate directly with National Grid for meter placement and service activation.
New high-efficiency gas boiler or furnace installed to manufacturer specifications. We match equipment to your existing distribution—hydronic baseboards, radiant floors, or forced air ductwork.
Complete tank decommissioning per NYS DEC regulations. Underground tanks pumped, cleaned, filled, and documented. Above-ground tanks drained and removed. Soil testing included when required.
We handle all Nassau County building permits, gas piping permits, and coordinate final inspections with your local building department. Full documentation provided for your records.
The numbers speak for themselves
Nassau County's diverse housing stock—from 1947 Levittown slab-on-grade ranches with radiant floor heating to 1920s Garden City colonials with steam radiators—requires conversion expertise that only local technicians possess. Each home type presents unique challenges: Levittown homes need careful gas line routing through crawl spaces, while Hicksville split-levels require navigating between levels for proper venting. Our team has handled conversions in every common Long Island housing style and knows exactly what to expect before we arrive.
We maintain a direct working relationship with National Grid's Long Island residential gas extension department. When gas service isn't already at your street—common in some sections of Old Westbury, Brookville, and parts of Plainview—we coordinate the gas main extension on your behalf. National Grid's residential program often subsidizes a significant portion of the extension cost, and we help you navigate the application to maximize your benefit. Our team handles all of the paperwork, from the initial service application through final meter activation.
New York State's Climate Leadership and Community Protection Act (CLCPA) is accelerating the transition away from fossil fuel heating, and oil-to-gas conversion is often a practical intermediate step. All oil tank decommissioning work we perform meets or exceeds NYS Department of Environmental Conservation (DEC) regulations. For underground storage tanks (USTs), we follow the DEC's PBS Closure procedures—including soil sampling at the tank grave—and file the required closure documentation with Nassau County. For above-ground storage tanks (ASTs), we ensure proper draining, cleaning, and removal with a licensed hauler. Every conversion includes a complete combustion safety analysis and carbon monoxide testing to protect your family.
Permitting requirements vary across Nassau County's patchwork of incorporated villages, towns, and the two cities (Long Beach and Glen Cove). The Town of Hempstead—covering the largest area—requires both a plumbing permit for gas piping and a building permit for equipment installation. The Town of Oyster Bay has a similar dual-permit process. Incorporated villages like Garden City, Floral Park, and Williston Park have their own building departments with specific requirements. We know each jurisdiction's process, typical inspection timelines, and the inspectors who review the work—saving you weeks of frustration navigating bureaucratic requirements.
Factory-trained technicians for all major HVAC manufacturers









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"Converted our 1950 Levittown Cape from oil to a Navien combi boiler. The radiant floor heat works even better now with the new gas system. They handled everything—National Grid, permits, tank removal. Couldn't be happier."
"Our old Beckett oil burner was on its last legs. They converted us to a high-efficiency Carrier gas furnace in 2 days. Our first gas heating bill was 35% less than what we were paying for oil. Wish we'd done this years ago."
"Converting a 1920s colonial from oil to gas isn't simple, but these guys nailed it. New Viessmann boiler, chimney liner, tank removed—all permitted and inspected. Professional from start to finish."
We evaluate your current oil system, chimney, gas availability, and recommend the best conversion approach for your home
We handle all paperwork and coordination with National Grid for gas meter installation and service line routing
Licensed technicians install gas piping, new heating equipment, and all necessary venting modifications
Oil tank decommissioned per NYS DEC regulations, removed or filled, with final inspection and all permits closed
Complete oil-to-gas conversion in Nassau County typically ranges from $7,500 to $15,000 depending on your home's existing infrastructure, equipment selected, and whether gas service is already at the street. This includes gas line installation, new heating equipment, oil tank removal, and all permits. Financing available with payments starting at $99/month.
Licensed gas conversion across Nassau County
From our Jericho headquarters, we provide complete oil-to-gas conversion services to Jericho, Syosset, Hicksville, Woodbury, Plainview, Westbury, Old Westbury, Bethpage, Mineola, Carle Place, East Meadow, Old Bethpage, New Cassel, Williston Park, Garden City, Levittown, Hempstead, Uniondale, Farmingdale, Bellmore, North Bellmore, Wantagh, Manhasset, Great Neck, Roslyn, New Hyde Park, Floral Park, Glen Cove, Oyster Bay, Locust Valley, Brookville, Port Washington, and surrounding areas.
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Home+ Air & Heat
55 Jericho Tpke Suite 203, Jericho, NY 11753
Free conversion assessment — find out how much you'll save with natural gas heating