Long Island Oil Tank Specialists: Install, Replace, Remove & Abandon
An oil tank is one of those things you don't think about until something goes wrong. Whether you're upgrading an old basement tank, switching from underground to above-ground, dealing with a leak, or preparing your home for sale, the work has to be done right the first time and it has to be documented for the town, the county, and your insurance.
All Island Comfort has been installing, replacing, removing, and abandoning residential oil tanks across Long Island since 2004. We're licensed, insured, and certified on Roth and Granby tank systems. We handle the permits, the soil testing, the disposal, and the paperwork, so you don't have to chase any of it.
- Oil Tank Installation
- Oil Tank Replacement
- Oil Tank Removal (Above-Ground & Underground)
- Oil Tank Abandonment-in-Place
- Outdoor & Basement Tank Work
- Garage & Crawl-Space Installations
- Underground (In-Ground) Tank Removal
- Soil Testing & Coordination of Remediation
- Permitting & NYSDEC Compliance
- Insurance & Real-Estate Documentation
Need oil tank work today? Our techs are standing by. Call 631-591-2289 for a fast quote or to schedule an in-home estimate.
Selling Your House?
Buyers and home inspectors flag old oil tanks all the time. We turn around quotes and inspection paperwork fast so you don't lose a closing date.
Call 631-591-2289Oil Tank Installation
We install new residential oil tanks for homeowners across Long Island who are building new, upgrading existing equipment, or finishing an oil-to-gas reversal. The most common installations are 275-gallon and 330-gallon above-ground tanks placed in one of four locations:
- Outdoor Tank Installation — Above-ground tank on a concrete pad outside the home, typically along the side of the house. Easiest to access for delivery; needs proper screening and tie-down.
- Basement Tank Installation — The most common Long Island setup. Tank sits on a code-compliant base near the burner with proper venting, fill line, and oil safety valve.
- Garage Tank Installation — Common in older homes with no basement. We install with vehicle-impact protection where required, plus the same vent and fill arrangement.
- Crawl-Space Installation — Possible where ceiling height and access allow. We confirm the path for delivery hose and any required local approvals before booking.
Every installation includes new fill and vent piping, a fuel oil safety valve, an oil filter, and a vent alarm whistle. We pressure-test the line, secure all clearances, and label the tank for your oil delivery driver.
Oil Tank Replacement
Most residential tanks last between 15 and 30 years. If yours is bulging, weeping, rusting along the seams, or just past its prime, replacement is far cheaper than a leak. We replace tanks in a single day in most cases:
- Pump the remaining oil and transfer it to the new tank when possible
- Disconnect, drain, and remove the old tank
- Dispose of the old tank at a certified facility
- Install the new tank with new fill, vent, and supply lines
- Install a fuel oil safety valve and inline filter
- Pressure-test all connections
- Bleed and restart the burner
- Hand off written documentation for permits and insurance
If you're replacing a basement or outdoor tank, we recommend stepping up to a Roth or Granby double-walled tank. The interior tank is corrosion-resistant, the outer tank catches anything that escapes the inner, and most insurance carriers price the policy lower because of it.
Oil Tank Removal: Above-Ground & Underground
Removing an oil tank is the cleanest end-of-life option, especially when you're selling, switching to natural gas, or replacing a tank that's past its prime. We handle both above-ground and underground (in-ground) tank removal across Long Island.
Above-Ground Tank Removal
For tanks in basements, garages, crawl spaces, or outdoors, removal is straightforward in most homes:
- Pump and transfer remaining oil
- Triple-clean the tank interior
- Disconnect supply, fill, and vent piping
- Cut the tank in place if it cannot be carried out whole
- Remove and dispose at a certified facility
- Provide written disposal documentation
Underground (In-Ground) Tank Removal
Underground oil tanks were common on Long Island through the 1980s. They're now harder to insure and often a deal-breaker during a home sale. Our underground tank removal process:
- Locate the tank, fill, and vent lines
- Pull permits with the town and Suffolk or Nassau County as required
- Pump and triple-clean the tank
- Excavate the area and physically remove the tank
- Coordinate soil sampling and analysis through a certified lab
- Backfill and restore the surface
- Submit closure documentation for your records and any future buyer
If soil contamination is found, we can manage remediation directly or coordinate with environmental partners. Either way, you get a single point of contact and a clear paper trail.
Oil Tank Abandonment-in-Place
Abandonment is the alternative to removal when an underground tank can't be safely or economically dug out. Common reasons we recommend abandonment include tanks under decks, patios, additions, retaining walls, or close to utility lines and gas mains. The process:
- Pull required town and county permits
- Pump and remove all remaining oil and sludge
- Triple-clean the tank interior
- Cap or cut the fill and vent lines
- Fill the tank with inert foam, sand, or slurry
- Seal the tank and document closure
Abandonment is fully recognized by NYSDEC and Long Island municipalities when removal isn't feasible. We provide signed closure documentation that satisfies most home buyers, inspectors, and insurance carriers.
"They removed an old underground tank that scared away two buyers. Soil came back clean, paperwork was perfect, and the new above-ground tank in the basement looked great. Closing happened on time."
Oil Tanks We Install
We install every common residential oil tank in 275-gallon and 330-gallon sizes, including:
- Roth Double-Walled Tanks — Corrosion-resistant inner, leak-containing outer, often discounted by insurance carriers.
- Granby Steel Tanks — Tough single- and double-walled options widely used across Long Island.
- Highland Steel Tanks — Reliable single-walled tanks for budget-conscious replacements.
- ConVault & Concrete-Encased Tanks — For specific exterior or commercial applications.
- 275-Gallon Vertical & Horizontal Tanks — Standard for most basements and garages.
- 330-Gallon Tanks — A common upgrade for high-consumption homes or longer fills.
Not sure what you have or what's right for your home? Send us a photo and we'll tell you. Call 631-591-2289.
Permits, NYSDEC Compliance & Soil Testing
Long Island oil tank work isn't just a matter of pulling a tank and walking away. Towns, the county, NYSDEC, and your insurance carrier all care about how the job is done and documented. We handle:
- Town and village building permits
- Suffolk County and Nassau County tank registrations and closure forms
- NYSDEC notifications and compliance for tanks over 1,100 gallons
- Coordination of soil sampling through certified labs
- Sample analysis interpretation and remediation planning if needed
- Tank disposal at certified scrap and recycling facilities
- Closure letters for real-estate transactions
- Insurance documentation for new and replacement tanks
You get a single accountable contractor instead of bouncing between a removal company, a soil tester, and a permit expediter. Call 631-591-2289 to scope your project.
Why Call All Island Comfort?
Tank work is one of those jobs where the wrong contractor can cost you tens of thousands of dollars. Long Island homeowners pick All Island Comfort because:
- Family-Owned in Wading River Since 2004
- Fully Licensed & Insured for Tank Work in NY
- Roth & Granby Certified Installer
- Permits, Soil Testing & NYSDEC Paperwork Handled
- Same-Day Estimates and Real-Estate Turnarounds
- Up-Front Pricing in Writing
- One Contractor Start to Finish — No Subcontracting
- 24/7 Response for Tank Leaks & Emergencies
"Replaced our 35-year-old basement tank with a new Roth in a single day. Crew laid down floor protection, hauled the old tank out cleanly, and the area looked better than when they got there. Insurance dropped our oil tank surcharge after."
How It Works: Three Easy Steps
Tank projects look complicated. We make the booking process simple:
- 1Call or Send a Photo
Tell our office about your tank, where it is (basement, garage, outdoor, or underground), and what you need (install, replace, remove, abandon). A photo of the tank and the area around it speeds the quote.
- 2In-Home Estimate & Permits
We come out, measure, talk options, and price the job in writing. Once you approve, we pull permits, schedule soil testing if needed, and lock in a date.
- 3The Work Gets Done
Most installs and above-ground removals are a single day. Underground work runs one to three days. You walk away with full documentation for your insurance carrier and any future home sale.
Ready for an estimate? Call 631-591-2289 or send us a quick message.
Related Long Island Services
Customers commonly pair this service with these other All Island Comfort offerings: