TLDR
Hire only licensed, insured contractors who pull permits, conduct soil testing, and provide a closure report at the end. Get 3 quotes. Be suspicious of the cheapest. Verify license numbers through your state environmental agency before signing anything.
How to Choose an Oil Tank Removal Company
Oil tank removal is a regulated environmental job — not a handyman task. Hiring the wrong contractor can leave you with no permits, no closure documentation, and full personal liability for any contamination. Here's how to vet a company before you sign.
Credentials to Require
Oil tank removal — especially underground tank removal — is regulated environmental work. Before hiring any company, verify these credentials:
State contractor license
Most states require environmental contractor licensing for underground tank work. In NJ, look for LSRP (Licensed Site Remediation Professional) affiliation. Ask for the license number and verify it at your state environmental agency's online lookup.
Liability insurance (general and pollution)
Standard general liability isn't enough for tank work. The contractor should carry pollution liability insurance specifically covering petroleum releases. Ask for a certificate of insurance. The limits should be at least $1M per occurrence.
Permit authority
A licensed contractor can and should pull all required permits. If they ask you to pull permits yourself, or suggest skipping permits, walk away.
Physical business presence
A local address, established phone number, and verifiable online presence (not just a website from last month) are signs of a legitimate operator. Verify their BBB listing and Google reviews.
Getting and Comparing Quotes
Get at least three written quotes. A legitimate quote should itemize:
- Tank pumping and cleaning
- Physical removal (labor, equipment, tank disposal)
- Permit fees
- Soil sampling (how many samples, which lab)
- Closure report preparation and filing
A quote that's significantly lower than others usually means something from that list is missing. The most common missing items in low quotes:
| What's Missing | Why It Matters |
|---|---|
| Permits | You may not have a legally completed job — and no documentation to prove it |
| Soil testing | Without samples you have no proof of clean closure — a problem when selling |
| Closure report | Lenders and buyers will ask for this; without it the job isn't truly done |
| Contamination contingency | Low quotes often don't address what happens if contamination is found |
Questions to Ask Every Contractor
- Are you licensed for underground tank removal in this state? — Ask for the license number. Look it up.
- Do you carry pollution liability insurance? — Ask for a certificate of insurance before work starts.
- Will you pull all required permits? — The answer should be yes, always.
- What does soil testing include and which lab do you use? — A reputable contractor uses a certified state-approved lab and takes samples from multiple points beneath the tank.
- What happens if contamination is found? — Get their process and typical costs in writing before work begins, not after.
- Will I receive a written closure report? — Yes should be automatic. If they hesitate, that's a red flag.
- Can you provide references from similar jobs in my county? — Local references from verifiable customers are a strong signal of legitimacy.
Red Flags to Avoid
Quote significantly below others with no explanation
Missing permits, no soil testing, or no closure documentation
Asks you to pull your own permits
Likely unlicensed — only licensed contractors can legally pull environmental permits in most states
Suggests "clean backfill only, no testing"
No soil testing means no proof of clean closure; a liability problem when you sell
No written contract or itemized quote
Scope creep, verbal-only agreements that are impossible to enforce
No physical address or only a cell number
No accountability if problems arise
Pays cash, no receipt
No paper trail, no documentation, no recourse
Closure Documentation — Why It Matters
A closure report (or closure letter, site assessment report, or Response Action Outcome depending on your state) is the document that proves the tank was removed and the site was found to be clean or properly remediated. You will need it:
- When you sell the property — buyers' attorneys and lenders routinely require it
- When refinancing — some lenders require tank closure documentation even if you're not selling
- If contamination is ever alleged later — it's your evidence the site was clean when the contractor finished
Never accept a verbal “we checked and it's fine” as your closure documentation. The written closure report from a licensed professional is the only document that holds up legally and with lenders.
Get Quotes from Pre-Vetted Contractors
TankRemovers connects homeowners with licensed, insured oil tank removal companies in their area — pre-screened for credentials, permits, and closure documentation.
Get Free Quotes →Frequently Asked Questions
What license does an oil tank removal company need?
Requirements vary by state, but most states with active oil tank programs require contractors to hold a state environmental contractor license or site remediation professional certification. In New Jersey, underground tank work requires a Licensed Site Remediation Professional (LSRP) to sign off on the closure report, even if a separate contractor does the physical removal. Ask any contractor you're considering for their specific state credentials and license numbers — and verify them online through your state's environmental agency.
How much does a reputable oil tank removal company charge?
Legitimate companies quote $800–$2,500 for above-ground residential tank removal and $1,500–$3,500 for underground tank removal (not including soil testing or remediation). Quotes significantly below this range are a red flag — they often mean the contractor is unlicensed, won't pull permits, or won't provide proper closure documentation. The cheapest quote is rarely the best value for a job with significant liability attached.
Should the oil tank removal company pull permits?
Yes — always. Permit-pulling is the contractor's responsibility for licensed, above-board work. If a contractor suggests you pull the permits yourself, or suggests skipping permits entirely, that's a major red flag. Working without required permits can create problems when you sell the property and can leave you personally liable for any environmental issues that arise later.
What is a closure report and why do I need one?
A closure report is the official documentation that an oil tank was removed and the site was found to be clean (or remediated). It's the document your real estate attorney will need if you sell the property, and it's what lenders often require for mortgage approval on properties with a history of oil tanks. A legitimate oil tank removal contractor will always provide a closure report as part of the job, not as an add-on.
How do I check if an oil tank removal company is legitimate?
Verify their state contractor license number on your state environmental agency's website. Check their liability and pollution insurance certificates — ask for a certificate of insurance naming you as an additional insured. Look for established local presence (physical address, local reviews, local phone number). Check Google and BBB reviews for consistency. Ask for references from similar jobs in your county. Legitimate companies are proud to provide all of this without hesitation.