Above-Ground vs. Underground Fuel Tanks: Which Is the Best Choice?

Published On: April 23, 2025Categories: Blog, Fuel

When it comes to fuel storage, one of the first decisions you’ll face is whether to install above-ground or underground fuel tanks. Both options offer unique advantages — but how do you know which is the best choice for your business or property? Making the wrong decision could result in unnecessary costs, environmental risk, and regulatory headaches. In this guide, we’ll break down everything you need to know about above-ground vs. underground fuel tanks, so you can confidently choose the right solution. You’ll gain insight into installation costs, maintenance requirements, safety concerns, and environmental considerations. Plus, we’ll share expert advice from Mansfield Service Partners, a leader in fuel storage solutions.

Understanding Above-Ground Fuel Tanks

Above-ground fuel tanks (ASTs) are exactly what the name suggests — tanks installed on or just above the surface of the ground. They are a popular choice for commercial, industrial, and government applications where visibility and accessibility are key priorities.

Benefits of Above-Ground Fuel Tanks

  • Easier access for inspections and maintenance: Regular visual inspections can detect issues early.
  • Lower installation costs: No excavation work is required, making the initial setup less expensive.
  • Simpler leak detection: Leaks are more visible, reducing the risk of undetected contamination.
  • Easier relocation: If you need to move the tank later, it’s much simpler with ASTs.

For example, many businesses that require temporary fuel storage—like construction companies or agricultural operations—choose above-ground tanks for their portability and lower upfront costs. Mansfield Service Partners offers a wide range of above-ground fuel tank solutions that are customizable to fit diverse operational needs.

Potential Drawbacks of Above-Ground Fuel Tanks

  • Increased exposure to weather and physical damage: ASTs can be vulnerable to accidents or environmental wear.
  • Security risks: Tanks are more visible and accessible, which could lead to vandalism or fuel theft.
  • Aesthetic concerns: Large tanks may not blend well with surrounding property or structures.

Exploring Underground Fuel Tanks

Underground fuel tanks (USTs) are buried below the ground’s surface, offering a discreet storage solution that maximizes available space. These tanks are commonly used at gas stations, commercial properties, and large-scale fueling sites.

Benefits of Underground Fuel Tanks

  • Space-saving design: Ideal for properties with limited surface area.
  • Improved aesthetics: Tanks are hidden from view, maintaining a cleaner visual environment.
  • Enhanced security: Reduced exposure to vandalism or tampering.
  • Protected from extreme weather: Being underground insulates the tank from temperature fluctuations and storm damage.

Potential Drawbacks of Underground Fuel Tanks

  • Higher installation costs: Excavation and site preparation increase upfront investment.
  • Complex maintenance and inspections: Specialized equipment may be needed to detect leaks or assess the tank’s integrity.
  • Risk of undetected leaks: If not properly maintained, leaks can go unnoticed and cause environmental contamination.
  • Strict regulatory requirements: USTs are heavily regulated to prevent soil and groundwater pollution.

Above-Ground vs. Underground Fuel Tanks: Key Factors to Consider

When deciding between above-ground vs. underground fuel tanks, it’s essential to evaluate several critical factors based on your business needs and property characteristics.

1. Budget

  • Above-ground tanks: Lower installation costs, easier relocation, and more affordable routine maintenance.
  • Underground tanks: Higher upfront costs due to excavation, but potentially longer lifespan with proper care.

2. Property Layout

  • Above-ground tanks: Ideal for sites with ample open space.
  • Underground tanks: May be necessary for locations where surface space is limited or aesthetics are a concern.

3. Compliance and Regulations

Both ASTs and USTs must meet federal, state, and local regulations, but USTs often face stricter oversight.

  • Ensure you understand EPA guidelines and local codes.
  • We offer equipment that will help you meet  regulatory compliance needsto minimize legal risks.

4. Maintenance and Monitoring

  • Above-ground tanks: Easier and cheaper to inspect and maintain.
  • Underground tanks: Require advanced leak detection systems and more extensive inspections.

5. Security and Risk Management

  • Consider potential threats like vandalism, fuel theft, or environmental exposure.
  • Mansfield Service Partners offers solutions like secondary containment and security features to mitigate risks.

Advantages of Partnering with Mansfield Service Partners

Choosing between above-ground vs. underground fuel tanks doesn’t have to be overwhelming. We bring decades of expertise in fuel storage design, installation, and maintenance. Here’s why clients trust Mansfield:

  • Customized solutions tailored to your business goals and site conditions.
  • Regulatory expertise to ensure compliance with all applicable standards.
  • Ongoing support with inspections, maintenance, and emergency services.
  • Industry-leading equipment designed for durability, efficiency, and safety.

Whether you’re managing a fleet fueling site, an industrial facility, or a remote rig operation, Mansfield Service Partners has the resources and knowledge to guide you every step of the way.

How to Decide: A Quick Checklist

If you’re still unsure which option is best, use this simple checklist to guide your decision:

  1. Assess your space: Do you have room for an above-ground tank, or is underground storage necessary?
  2. Consider your budget: Can you accommodate higher upfront costs for USTs, or is a cost-effective AST more realistic?
  3. Evaluate environmental risks: Is groundwater contamination a concern in your area?
  4. Factor in aesthetics and security: Which solution aligns best with your property’s visual and security needs?
  5. Plan for future scalability: Will your fuel storage needs increase over time?

Making the Best Choice for Your Fuel Storage

Choosing between above-ground vs. underground fuel tanks comes down to balancing your budget, property characteristics, and long-term operational goals. Above-ground tanks offer ease of access, lower costs, and flexibility, while underground tanks provide space savings, improved aesthetics, and enhanced security. Over the past decade, many businesses have shifted towards ASTs given their lower cost and easier upkeep, but USTs are still used in places where space is valued at a premium. 

Partnering with a knowledgeable provider like Mansfield Service Partners ensures you make a well-informed, compliant, and future-proof decision. MSP  can deliver tailored fuel storage solutions backed by unmatched industry expertise and customer support.

Ready to design the ideal fuel storage system for your operation? Contact us today to get expert advice and customized solutions that fit your needs.