What a buyer's attorney does when an oil tank turns up
Two things have to hold for a listed sale to reach closing: the buyer's nerve and the buyer's lender. A buried oil tank has a habit of taking out both.
The buyer imagines a worst case, because nobody has given them a better one. The lender sees an environmental question against the property it is about to secure a mortgage on and wants it resolved before funding. Either one alone ends the contract, and the house goes back on the Uniondale market with more days on it and a story attached to the oil tank.
How we help Uniondale owners with a buried oil tank
We buy houses with buried oil tanks regularly, which means we already know who does this work properly and roughly what it runs. That is the practical difference between us and a buyer meeting the problem for the first time.
We have environmental contractors and tank companies we have used for years, and we bring them in on our own account after closing rather than asking you to line anything up first. You do not test, you do not excavate, you do not chase a decades-old permit. And if it turns out you would come out ahead removing the oil tank and listing the house on the open market, we will say so and hand you the contractor we would call ourselves.
Why local knowledge changes the number
The median has slipped 1.95% year over year as of 2026-10. It is a small move, but a softening market punishes the houses that need work first - buyers with choices do not choose the project. At a $684,649 median, Uniondale is a market where buyers expect to do some work. That helps a seller with a dated house and hurts one with a genuinely broken one, because the pool that will take on a project is not the same pool that will take on a gut. Houses here take a median of 50 days to go from listed to under contract, and that clock only starts once the property is ready to show.
Uniondale is roughly 32,473 people in Nassau County, ZIP 11553, and the housing stock is mostly cape cod, colonial, ranch. Around Hempstead Turnpike and the Nassau Coliseum, most of it is old enough that the mechanicals are on their second or third life. We have been buying across Nassau County for 15+ years. We know what the Uniondale Union Free School District does to a resale price, which blocks still have oil tanks in the ground, and what a house like yours is actually worth here.
Why removing the oil tank first is the expensive order
The order people usually reach for is: remove the oil tank, then sell. It is the natural instinct and it is frequently the costly one.
Once the excavator is on site and the tank is out, whatever the ground shows becomes yours to deal with, mid-sale, with a buyer waiting. Sellers who go that route sometimes watch the job double while they are standing in the yard. Selling with the oil tank in place moves that risk to us, which is most of the reason to do it this way.
If the oil tank leaked, this is still a sale
Signs that an oil tank leaked are sometimes obvious and sometimes not. A smell in the basement after heavy rain, staining, a neighbor who remembers work being done. Often there is nothing at all to see.
If you suspect it leaked, an environmental contractor is the person who can actually answer that, and there are reporting considerations in New York your attorney should walk you through. We are not asking you to resolve any of it before selling. We are telling you what the road looks like so you can decide with your eyes open.
What the two paths cost in Uniondale
These are the two routes open to you with a house with a buried oil tank, priced against what Uniondale houses actually sell for.
Work it against Uniondale's own numbers. The median sale here is $684,649. A 5% commission on that is $34,232, and seller closing costs of about 2% add roughly $13,693. Those are costs we can cover on our side. That is $47,925 gone before anyone counts the repairs it took to get the house listable.
There are two waits in a listed sale and people usually only count the first. In Uniondale the median house takes about 50 days to go from listed to a signed contract. Then it waits again, typically 45 to 60 days, while the buyer's lender orders an appraisal and underwrites the loan. Call it 95 to 110 days from sign to keys, assuming nothing goes wrong.
The part worth understanding is what a signed contract actually guarantees, which is less than most sellers assume. A retail buyer with a mortgage contingency can walk away right up to the end. If they do not qualify, if the appraisal comes in under the price, if they change their mind and let the financing lapse. A share of deals die exactly there, after months of waiting, and the house goes back on the market with time on it. We are not borrowing anything, so there is no lender to satisfy, no appraisal to come in low and no contingency to exercise.
| Listing with an agent | Selling to us | |
|---|---|---|
| Sale price | $684,649 (Uniondale median) | Our written offer |
| Commission | −$34,232 | None |
| Seller closing costs | −$13,693 | We can cover them |
| Repairs before listing | Out of pocket | None |
| Cleanout | Yours | Ours |
| Showings | Until it sells | One visit |
| Listed to signed contract | 50 days (Uniondale median, once listable) | 24 hours to a written offer |
| Contract to closing | 45 to 60 days (waiting on the buyer's lender) | A date you choose |
| Total wait | 95 to 110 days if nothing falls through | Yours to set |
| Can the buyer walk? | Yes (mortgage contingency runs to the end) | No financing to fall through |
| Before repairs and carrying | $636,724 | The number we put in writing |
For the listing side we have used a 5% commission and about 2% in seller closing costs; your real figures may differ. Repairs and carrying costs are left out because they depend on the house. If yours is in good shape, a good agent may well get you more than we would, and we will tell you if so.
Closing on an Uniondale house with the oil tank in the ground
A listed sale with an oil tank in the picture acquires a second schedule of its own. The test gets booked, the results come back, the attorneys argue about what they mean, and if anything is found the negotiation restarts from the beginning.
With us it is one visit and a written number. The oil tank does not add a week, because we are not asking anyone's permission to buy an Uniondale house that has one. You pick the closing date and we work to it.
What you do not pay when you sell a house with a buried oil tank
Each of the following comes with a retail listing of a house with a buried oil tank, and none of it comes with ours.
- Agent commission
- $34,232 at 5% of the Uniondale median none
- Seller closing costs
- About $13,693 on a $684,649 sale. We can cover these. none
- Repairs to make it listable
- Everything a buyer would flag, paid for before you list none
- Cleanout and removal
- Dumpsters or haulers by the load, ahead of any viewing none
- Carrying costs while it waits
- Taxes, insurance and utilities across the 95 to 110 days it takes to find a buyer and then wait on their lender none
Oil tank disclosure, paperwork, and who to ask
If there is paperwork anywhere, it helps. An old permit, a receipt from whoever did the conversion to gas, a note from a prior closing, anything a previous owner left in a drawer. Your town's building department may hold records of work done at the address, and it costs nothing to ask them.
If there is nothing at all, that is the usual case with a buried oil tank and it does not slow us down. We have bought plenty of Nassau County houses where the only evidence of the tank was a capped fill pipe beside the side door.
Common questions
Do I have to remove the oil tank before you buy an Uniondale house?
Not at all. No removal, no test, no soil work. The oil tank is priced into the offer, and the offer does not move afterward.
How do I know whether there is still an oil tank buried in my yard?
The usual signs are a capped fill pipe or vent on the side of the house, a boiler that was converted to gas, or copper lines running to nowhere in the basement. A tank company can sweep the yard and settle it. Your town's building department may also hold records for the address.
What if the oil tank leaked?
A leak widens the work, and there may be reporting considerations in New York, which is a question for your attorney and an environmental contractor. From our side we still buy. Tell us early so the offer is right the first time.
A buyer walked away over the oil tank. Does that hurt my chances with you?
Not in the slightest, and it is a common way people arrive at this conversation. A retail buyer walking over an oil tank tells us something about that buyer, not about your house.
Does the oil tank change what you can pay?
Yes, in the way any repair does. Because we use contractors we have worked with for years, the deduction is usually smaller than the quotes homeowners are handed when they call around Uniondale themselves.