Oil Tank Replacement: When to Replace Your Tank & How Total Energy Services Can Help

For homes across Dorset, Wiltshire, Hampshire and Somerset that rely on oil heating, your oil tank is one of the most important parts of your heating system. But like any piece of equipment, it doesn’t last forever. An ageing or damaged oil tank can lead to leaks, environmental hazards, heating failures and costly repairs.

As OFTEC-registered engineers and accredited oil boiler installers, Total Energy Services specialises in safe, compliant and efficient oil tank replacements. Here’s everything homeowners should know about recognising the signs of a failing tank — and what the replacement process involves.

Why Replacing an Old Oil Tank Matters

A well-maintained oil tank can last around 15–20 years, but over time the tank’s structural integrity weakens. Replacing your tank before it fails helps you:

• Avoid costly leaks and clean-up fees

• Keep your heating system running reliably

• Maintain compliance with current OFTEC regulations

• Protect your home and surrounding environment

• Improve efficiency and safety

Older tanks also tend to lack modern safety features, making an upgrade a smart investment.

Common Signs Your Oil Tank Needs Replacing

If you notice any of the following, it’s time to book a professional inspection:

1. Cracks or splits in the tank

Plastic tanks can degrade with UV exposure and temperature changes. Any visible damage should be taken seriously.

2. Bulging or warping

A bulging tank indicates its structural integrity is failing — a major red flag.

3. Rust or corrosion (steel tanks)

Corrosion weakens the tank walls and can lead to leaks.

4. Strong oil smells

This often points to a small leak or vapour escape.

5. Unstable or sinking base

A tank must sit on a stable, level, fire-resistant base. Movement or sinking is unsafe.

6. Dampness or oily patches around the tank

Even small leaks require immediate attention.

7. Your tank is over 15–20 years old

Older tanks may not meet current standards and are more prone to failure.

What Does an Oil Tank Replacement Involve?

At Total Energy Services, we handle the full process from start to finish, ensuring everything is safe, legal and compliant.

1. Site Survey

We assess:

• The condition of your current tank

• Access for removal

• Fire and environmental regulations

• Suitable locations for your new tank

• Base requirements

2. Choosing a New Tank

We supply and install high-quality, OFTEC-approved plastic or steel oil tanks. Options include:

• Single-skin tanks (in suitable environments)

• Bunded (double-layer) tanks for extra protection

• Slimline tanks for tight spaces

We help you choose the right size and style for your home and usage.

3. Removal of Your Old Tank

Our engineers safely empty, clean and remove your old tank, disposing of it in line with environmental regulations.

4. Installation of Your New Tank

This includes:

• Installing or constructing a compliant base

• Positioning your new tank

• Updating isolation valves and filters

• Reconnecting oil lines

• Pressure testing and commissioning

5. Certification

Once complete, we issue the correct OFTEC paperwork, giving you peace of mind that your installation meets all regulations.

How Long Does Oil Tank Replacement Take?

In most cases, the full process takes half a day to one day, depending on access and base requirements. We always aim to minimise disruption and keep your heating downtime as short as possible.

How Much Does It Cost to Replace an Oil Tank?

Costs vary depending on:

• Tank size

• Tank type (bunded vs single-skin)

• Whether a new base is required

• Accessibility

We provide transparent, fixed-price quotations so you know exactly what to expect — no hidden extras.

Why Choose Total Energy Services?

With decades of experience and a trusted local reputation, you’re in safe hands.

✔ OFTEC-registered engineers
✔ Accredited installers for Grant boilers (ideal if upgrading your boiler too)
✔ Fully qualified, insured & DBS checked
✔ Safe removal and disposal of old tanks
✔ Compliant installations to current regulations
✔ Family-run service with honest, transparent pricing
✔ Covering Dorset, Wiltshire, Hampshire & Somerset

We’ve installed oil tanks for homes, farms, holiday lets, smallholdings and rural properties across the region.

Book Your Oil Tank Replacement Today

If you’ve noticed signs of wear or your tank is reaching the end of its lifespan, now is the perfect time to upgrade. Our friendly team is here to help with advice, surveys and fast installation.

📞 01258 472132
🌐 totalenergy.co.uk
📍 Serving: Blandford, Poole, Bournemouth, Dorchester, Weymouth, Gillingham, Salisbury, Andover, Yeovil, Sherborne, and surrounding areas.

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