Home / Oil to Gas Conversion
Oil at $6.37 a Gallon? There’s Another Way: Oil to Gas Conversion in Hempstead, NY.
Fall 2026, and heating oil on Long Island is $6.37 a gallon (NYSERDA survey, Sept 21, 2026). If your colonial still runs on oil, every delivery truck that pulls up is a reminder. For Hempstead oil to gas conversion, homeowners ask about it every fall. Here's our position up front: we convert homes to gas every month, and we'll also tell you when it doesn't make sense. Some homes shouldn't convert. The math gets run with you, and we'd rather lose the job than sell you a 9 to 10K project that never pays back.
We've been serving Hempstead Village for 20+ years. The National Grid process, the Village gas permit, the oil tank: we handle all of it. Call (516) 555-0134 for a free estimate with the real payback math for your house.
*20+ Years Serving Hempstead Village · Licensed by the Incorporated Village of Hempstead · 24/7 Emergency · Free Estimates on Visible Repairs*

Oil Bills Eating You Alive? Get the Real Math. Call (516) 555-0134.
Call (516) 555-0134. A plumber answers, not a machine.
Call (516) 555-0134Should You Convert? The Honest Answer First
This section is why this page exists. Every other conversion page sells. This one does the math.
Convert oil heat to gas in Hempstead, NY when your oil boiler is 15-plus years old and inefficient. An aging oil unit burning $6.37 a gallon is the worst of both worlds: old equipment and expensive fuel. Convert when gas is already on your street, because National Grid provides up to 100 feet of main and 100 feet of service line free. The closer the main, the cheaper your project. Those two facts decide most oil to gas conversion Hempstead NY projects before we ever talk equipment.
Think twice when your oil unit is young. Spending $9,000 to $10,000 just to get rid of the oil tank rarely pays when the boiler has years left. Oversized oil boilers short cycle and waste fuel, but a young efficient oil unit can be the cheaper heat for years to come.
The payback math we do with you, before you spend a dollar: your actual oil delivery receipts from last winter, the equipment quote, the National Grid timeline, and the real comparison. If the numbers don't work, we say so. That's the whole business model: direct answers keep the phone ringing longer than sales pitches.
Get the real numbers for your house: (516) 555-0134.
Is Natural Gas Available on Your Street?
This is the street by street Long Island reality. Gas isn't everywhere in the village. Your plumber has to verify that gas lines are available on your street before anything else happens. We confirm it with National Grid before we talk equipment.
Where the main exists, National Grid provides up to 100 feet of main and 100 feet of service line free. Beyond that, they quote you for the extension. Where no main exists, projects depend on enough neighborhood sign ups to justify the work. One house rarely gets a main extended. A block that asks together sometimes does.
How we check for you: call 1-877-MyNGrid (877-696-4743) yourself, or it gets verified during your estimate. That check comes first on every conversion we scope. Either way, nobody spends a dollar until the gas question is answered. If gas isn't on your block, we tell you plainly instead of taking a deposit and hoping.
Oil to Gas Conversion in Hempstead, NY, Step by Step
Six steps, in the order they actually happen.
The permit legwork is the part homeowners remember. The filings, the certificate, the follow up calls: On an oil to gas conversion Hempstead NY job, the leg work gets done. Every time.
Gas availability gets checked and your current system gets assessed.
The street question first, then your boiler's age, condition, and sizing. If the current system has years left, you hear that here.
You pick equipment with us.
Boiler or furnace sizing, efficiency ratings, what fits your house and your budget. No upsell to the biggest unit. Right sized beats oversized every time.
The Residential Gas Service Agreement goes to National Grid.
Signed and submitted (email to gaslongislandgrowth@nationalgrid.com or mail to 1650 Islip Avenue, Brentwood NY 11717, Attn: Customer Connections 2nd Floor). This is the paperwork that starts their clock.
The Village gas permit gets pulled.
This part is strict, and it's verified from the Village Code (Ch. 100, Art. V): a gas permit from the Plumbing Inspector is required BEFORE any gas piping install or alteration, issued ONLY to a Village licensed plumber. The line gets a 3.5 psi air test for 10 minutes minimum, in the Inspector's presence. No meter gets set until the Inspector's certificate is filed. The dollar fee for the gas permit isn't published in the code, so the exact fee goes on your written estimate.
Installation.
The new gas boiler goes in: piping, venting, controls. That is the heart of every oil to gas boiler conversion in Hempstead, NY. The oil tank gets decommissioned or removed. One crew coordinates it all.
Inspection, certificate, meter set.
The Inspector signs off, the certificate gets filed, and National Grid sets the meter. You have 90 days after the service line goes in to get the meter set, so the sequence matters and we manage it.
Oil to Gas Conversion in Hempstead, NY: What It Costs
Reported homeowner numbers first, oil to gas conversion cost on Long Island as homeowners report it, our written estimate as the real number.
| Cost piece | Reported range |
|---|---|
| Gas boiler equipment | Typically several thousand (first quotes for Navien and Rinnai units commonly land around $6,400 to $7,600) |
| Piping, permits, accessories | Several hundred |
| Plumber and electrician hookup | $1,000 to $2,000 |
| Oil tank removal or decommissioning | Several hundred |
| Typical all in first estimates | $6,400 to $9,000+ |
The breakdown for oil to gas conversion on Long Island that homeowners typically see: the boiler is a few thousand, then several hundred for pipes, permits, and accessories, then 1 to 2K for the plumber and electrician hookup, then several hundred more to get rid of the old oil tanks. Those are reported numbers, not our prices. Your written oil to gas conversion Hempstead NY estimate is the number that matters.
Typical ranges. Your final price is confirmed in writing before work starts.
What Moves Your Conversion Number
Not every conversion quote lands in the same place, and the spread is not random. Four things move your number.
Distance to the main is the big one. National Grid provides up to 100 feet of main and 100 feet of service line free. A house close to the main rides on that. A house past the free footage pays for the extension, and that can change the payback math completely.
Equipment tier is next. A standard efficiency replacement and a high efficiency condensing unit are different purchases with different rebate treatment. Right sizing matters too: an oversized unit short cycles and wastes the savings you converted for.
The tank is the third driver. Decommissioning in place costs less than full removal, and a tank with a known leak is a different conversation entirely.
The fourth is the house itself. Chimney condition, venting route, and whether the electric panel needs work for the new unit all show up on real estimates.
This is why we will not quote a conversion off a photo. The written estimate follows the gas check and the site visit, and it itemizes which of these four drivers applies to your house.
What Happens to Your Old Oil Tank
It doesn't stay. Decommissioning or removal, your choice, and we coordinate it so you're not chasing a second contractor.
Decommissioning means the tank gets pumped, cleaned, and filled. Removal means it comes out entirely. Either way it's documented. The soil question comes up on every job: if there's a known leak, we talk about it before work starts. No surprises mid project.
Most owners remove the tank. On most oil to gas conversion Hempstead NY jobs, it comes out with the old boiler. An empty oil tank in the basement is a conversation at resale that you'd rather not have.
Will Gas Actually Lower Your Bills?
The unit economics, as of fall 2026, attributed and dated.
Heating oil on Long Island: $6.37 a gallon (NYSERDA, Sept 21, 2026), up 70.1 percent year over year. Natural gas: the EIA put NY residential gas at $30.86 per MCF in July 2026, up 7 percent year over year, though that's statewide and summer skewed.
Here's what matters more than the fuel: the efficiency. An 85 percent efficient gas unit versus a 60 percent oil dinosaur is where the savings live. Fuel price times efficiency is the real comparison, and we run it on YOUR bills before you decide.
No invented savings percentages on this page. Anyone promising you "save 40 percent" without seeing your delivery receipts is selling, not calculating.
Rebates: National Grid closed its gas equipment rebate program to new applications in 2026, so there is no utility rebate on the gas boiler itself right now. What is still real money is the NYS Clean Heat program, which pays for heat pump installations, with higher amounts in parts of Hempstead that qualify as disadvantaged communities. We check what is actually open at estimate time and put it in writing. No rebate dollar figure gets published that has not been confirmed.
What You Can Do Right Now
Gather last winter's oil delivery receipts. The math needs them. Without your actual usage, every payback calculation is fiction.
Check whether your neighbors have gas. If the houses on both sides converted, your street has a main. That's a good sign.
Don't cancel oil deliveries until the meter is set. The sequence matters: gas flowing before oil stops.
Call us before you sign anything with National Grid about a conversion. The order of operations affects the timeline, and getting the sequence right the first time saves weeks.
What Your Neighbors Say
Rated 5.0 by your Hempstead neighbors.
We got three estimates like you're supposed to. They were the only ones who did the math on our actual oil bills instead of just selling us a boiler. The permit paperwork, all of it, they handled.
Gas wasn't on our block when we asked. They told us straight instead of taking a deposit and hoping. Two streets over got the main the next year and they called us back.
Our oil boiler was 22 years old and drinking money. They showed us the payback on paper before we signed anything. First winter on gas and the bills are half.
The tank removal was the part I dreaded. They handled the whole thing, paperwork and all, and the basement is clean.
Recent Work in the Village
The 24 Year Old Boiler in the Heights
A pre war colonial still heating with a 24 year old oil boiler. The owners had their delivery receipts from the winter before: oil at $6.37 a gallon had turned every fill into a bill they dreaded. The boiler was at the age where the next breakdown was a matter of when, not if, and gas was already on their street.
The math got run on their actual receipts first, and the payback made sense. The Residential Gas Service Agreement went to National Grid, the Village gas permit got pulled, and the new high efficiency gas boiler went in. The line passed the 3.5 psi air test in the Inspector's presence, the certificate was filed, and the meter got set inside the window. The old oil tank was pumped, removed, and documented. Their written estimate landed inside the $6,400 to $9,000 range most first estimates land in.
No more delivery minimums, no more price spikes every cold snap, and no mid winter boiler failure on a unit that old. Their oil to gas conversion Hempstead NY happened in September, on their schedule, instead of as an emergency replacement in January, when every decision costs more.
Two Falls of Quotes, One Decision
A cape whose owners had collected conversion quotes two falls in a row and never signed. What stopped them was not the price. It was the paperwork: National Grid forms, a Village permit they did not know existed, and an oil tank in the basement nobody wanted to deal with. Meanwhile the oil boiler kept short cycling and burning fuel to heat a house it was too big for.
We handled the whole sequence. Gas availability on the street got verified first, then the equipment got sized to the house instead of to the old boiler's rating plate. The permit was pulled by a Village licensed plumber, the 3.5 psi test passed with the Inspector there, the meter got set, and the tank was decommissioned and hauled out inside the same project window.
One contractor, one timeline, and no chasing a second company for the tank. That is how an oil to gas conversion Hempstead NY should feel from the owner's side. The right sized gas unit ended the short cycling waste, and the owners went into winter with the conversion behind them instead of a third fall of quotes.
Serving All of Hempstead Village
The Heights, the Terrace area, Parkside, the Fulton Avenue corridor, the Hempstead Turnpike blocks, all of 11550. The oil to gas conversion Hempstead NY work we do most is in the oil heated colonials and capes from the village's big building decades. Oil to gas boiler conversion across Long Island follows the same pattern: old boiler out, right-sized gas unit in. One jurisdiction note that matters here: the Incorporated Village of Hempstead issues the gas permit, not the Town of Hempstead. Different government, different permit desk. If you're outside the village lines, say so when you call.

Oil to Gas Questions, Answered
Oil Bills Eating You Alive? Get the Real Math.
An oil to gas conversion in Hempstead, NY, done right, starts with the question nobody else asks: should you convert at all. Gas availability checked, payback run on your actual bills, Village gas permit pulled by a Village licensed plumber, 3.5 psi test in the Inspector's presence, oil tank handled. We've been serving Hempstead Village for 20+ years, and we'll give you a direct answer on whether conversion pays.
Call (516) 555-0134. The real math on your house, run free.
Hempstead Plumbing Pros · 312 Main Street, Hempstead, NY 11550 · (516) 555-0134
Call (516) 555-0134
Hempstead Plumbing Pros