Showing all 21 resultsSorted by price: low to high

Slimline Oil Tanks

Slimline oil tanks are designed with a narrow footprint to allow installation in restricted or tight spaces. Ideal for domestic and commercial properties where access or positioning is limited, these slimline bunded oil tanks provide safe, compliant heating oil storage without compromising on capacity.

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Showing 1–20 of 21, lowest price first

650 Litre Slimline Plastic Bunded Oil Tank

£1,020.00 Exc VAT (£1,224.00 Inc VAT)

2 - 5 Working Days

1000 Litre Slimline Plastic Bunded Oil Tank

From £1,040.00 Exc VAT (£1,248.00 Inc VAT)

2 - 5 Working Days

Harlequin HQI 650 Litre Slimline Bunded Heating Oil Tank

£1,192.00 Exc VAT (£1,430.40 Inc VAT)

2 - 5 Working Days

1000 Litre Slimline Bunded Oil Tank - Carbery

From £1,218.03 Exc VAT (£1,461.64 Inc VAT)

5 - 7 Working Days

Harlequin 650 Litre Slimline Bunded Heating Oil Tank

£1,282.00 Exc VAT (£1,538.40 Inc VAT)

3 - 5 Working Days

1250 Litre Slimline Plastic Bunded Oil Tank - Tuffa Tanks

£1,398.00 Exc VAT (£1,677.60 Inc VAT)

2 - 5 Working Days

Harlequin Diamond 1000SSL 1000 Litre Slimline Bunded Oil Tank

£1,417.00 Exc VAT (£1,700.40 Inc VAT)

2 - 5 Working Days

Harlequin HQi 1000 Litre Slimline Bunded Heating Oil Tank

£1,427.00 Exc VAT (£1,712.40 Inc VAT)

2 - 5 Working Days

Harlequin HQi 1100 Litre Slimline Bunded Heating Oil Tank

£1,458.00 Exc VAT (£1,749.60 Inc VAT)

2 - 5 Working Days

Harlequin HQi 1225 Litre Slimline Bunded Oil Tank

£1,491.00 Exc VAT (£1,789.20 Inc VAT)

2 - 5 Working Days

Harlequin Diamond 1230 Litre Super Slim Bunded Oil Tank

£1,500.00 Exc VAT (£1,800.00 Inc VAT)

2 - 5 Working Days

Harlequin HQi 1300 Litre Slimline Bunded Oil Tank

£1,512.00 Exc VAT (£1,814.40 Inc VAT)

2 - 5 Working Days

Harlequin 1000 Litre Slimline Bunded Oil Tank

£1,517.00 Exc VAT (£1,820.40 Inc VAT)

3 - 5 Working Days

Harlequin 1100 Litre Slimline Bunded Heating Oil Tank

£1,548.00 Exc VAT (£1,857.60 Inc VAT)

3 - 5 Working Days

Harlequin 1225 Litre Slimline Bunded Oil Tank

£1,581.00 Exc VAT (£1,897.20 Inc VAT)

3 - 5 Working Days

Harlequin 1300 Litre Slimline Bunded Oil Tank

£1,602.00 Exc VAT (£1,922.40 Inc VAT)

3 - 5 Working Days

Harlequin Diamond 1400SSL 1400 Litre Slimline Bunded Oil Tank

£1,689.00 Exc VAT (£2,026.80 Inc VAT)

2 - 5 Working Days

1000 Litre Slimline Fire Protected Steel Bunded Oil Tank - Tuffa Tanks

From £2,990.00 Exc VAT (£3,588.00 Inc VAT)

10 - 15 Working Weeks

900 Litre Slimline Fire Proof Bunded Oil Tank - Atlantis

From £6,480.00 Exc VAT (£7,776.00 Inc VAT)

4 - 6 Working Weeks

1050 Litre Slimline Fire Proof Bunded Oil Tank - Atlantis

From £6,782.00 Exc VAT (£8,138.40 Inc VAT)

4 - 6 Working Weeks

About Slimline Oil Tanks

Available in a range of sizes and configurations, our slimline tanks are manufactured in both plastic and steel, with fully bunded (double-skinned) construction as standard.

Why Choose a Slimline Oil Tank?

Slimline bunded oil tanks are ideal when:

Space is limited between buildings or boundaries
Access is restricted
Replacing an older tank in a tight location
Installing heating oil storage in urban or compact sites

Despite their narrow design, these tanks maintain full secondary containment through a double-skinned construction, helping meet UK oil storage regulations and environmental requirements.

Available Materials

Our slimline oil tanks are available in:

Plastic bunded options for corrosion resistance
Steel bunded options for increased strength and durability

Capacities vary to suit both domestic heating oil storage and larger commercial installations.

If you require a standard footprint tank, you can browse our full range of Bunded Oil Tanks, or explore Plastic Bunded Oil Tanks and Steel Bunded Oil Tanks by material.

650 Litre Slimline Plastic Bunded Oil Tank

Bunded Oil Tanks

650 Litre Slimline Plastic Bunded Oil Tank

£1,020.00 Exc VAT (£1,224.00 Inc VAT)

2 - 5 Working Days

1000 Litre Slimline Plastic Bunded Oil Tank

Bunded Oil Tanks

1000 Litre Slimline Plastic Bunded Oil Tank

From £1,040.00 Exc VAT (£1,248.00 Inc VAT)

2 - 5 Working Days

650L Plastic Oil Tank

Bunded Oil Tanks

Harlequin HQI 650 Litre Slimline Bunded Heating Oil Tank

£1,192.00 Exc VAT (£1,430.40 Inc VAT)

2 - 5 Working Days

1000 Litre Slimline Bunded Oil Tank - Carbery

Slimline Oil Tanks

1000 Litre Slimline Bunded Oil Tank – Carbery

From £1,218.03 Exc VAT (£1,461.64 Inc VAT)

5 - 7 Working Days

650L Plastic Oil Tank

Bunded Oil Tanks

Harlequin 650 Litre Slimline Bunded Heating Oil Tank

£1,282.00 Exc VAT (£1,538.40 Inc VAT)

3 - 5 Working Days

1250SLB - slant Tuffa Tanks Slimline Tank

Bunded Oil Tanks

1250 Litre Slimline Plastic Bunded Oil Tank – Tuffa Tanks

£1,398.00 Exc VAT (£1,677.60 Inc VAT)

2 - 5 Working Days

1000 Litre Slimline Bunded Oil Tank - Diamond 1000SSL

Bunded Oil Tanks

Harlequin Diamond 1000SSL 1000 Litre Slimline Bunded Oil Tank

£1,417.00 Exc VAT (£1,700.40 Inc VAT)

2 - 5 Working Days

Harlequin HQi 1000 Litre Slimline Bunded Heating Oil Tank

Bunded Oil Tanks

Harlequin HQi 1000 Litre Slimline Bunded Heating Oil Tank

£1,427.00 Exc VAT (£1,712.40 Inc VAT)

2 - 5 Working Days

Harlequin HQi 1100 Litre Slimline Bunded Heating Oil Tank

Bunded Oil Tanks

Harlequin HQi 1100 Litre Slimline Bunded Heating Oil Tank

£1,458.00 Exc VAT (£1,749.60 Inc VAT)

2 - 5 Working Days

Harlequin HQi 1225 Litre Slimline Bunded Oil Tank

Bunded Oil Tanks

Harlequin HQi 1225 Litre Slimline Bunded Oil Tank

£1,491.00 Exc VAT (£1,789.20 Inc VAT)

2 - 5 Working Days

Harlequin Diamond 1230 Litre Super Slim Bunded Oil Tank

Bunded Oil Tanks

Harlequin Diamond 1230 Litre Super Slim Bunded Oil Tank

£1,500.00 Exc VAT (£1,800.00 Inc VAT)

2 - 5 Working Days

Harlequin HQi 1300 Litre Slimline Bunded Oil Tank

Bunded Oil Tanks

Harlequin HQi 1300 Litre Slimline Bunded Oil Tank

£1,512.00 Exc VAT (£1,814.40 Inc VAT)

2 - 5 Working Days

Harlequin 1000 Litre Slimline Bunded Oil Tank

Bunded Oil Tanks

Harlequin 1000 Litre Slimline Bunded Oil Tank

£1,517.00 Exc VAT (£1,820.40 Inc VAT)

3 - 5 Working Days

Harlequin 1100 Litre Slimline Bunded Heating Oil Tank

Bunded Oil Tanks

Harlequin 1100 Litre Slimline Bunded Heating Oil Tank

£1,548.00 Exc VAT (£1,857.60 Inc VAT)

3 - 5 Working Days

Harlequin 1225 Litre Slimline Bunded Oil Tank

Bunded Oil Tanks

Harlequin 1225 Litre Slimline Bunded Oil Tank

£1,581.00 Exc VAT (£1,897.20 Inc VAT)

3 - 5 Working Days

Harlequin 1300 Litre Slimline Bunded Oil Tank

Bunded Oil Tanks

Harlequin 1300 Litre Slimline Bunded Oil Tank

£1,602.00 Exc VAT (£1,922.40 Inc VAT)

3 - 5 Working Days

1400 Litre Slimline Bunded Oil Tank - Diamond 1400SSL

Bunded Oil Tanks

Harlequin Diamond 1400SSL 1400 Litre Slimline Bunded Oil Tank

£1,689.00 Exc VAT (£2,026.80 Inc VAT)

2 - 5 Working Days

1000 Litre Slimline Fire Protected Steel Bunded Oil Tank - Tuffa Tanks

Fire Protected Oil Tanks

1000 Litre Slimline Fire Protected Steel Bunded Oil Tank – Tuffa Tanks

From £2,990.00 Exc VAT (£3,588.00 Inc VAT)

10 - 15 Working Weeks

900 Litre Slimline Fire Proof Bunded Oil Tank - Atlantis

Fire Protected Oil Tanks

900 Litre Slimline Fire Proof Bunded Oil Tank – Atlantis

From £6,480.00 Exc VAT (£7,776.00 Inc VAT)

4 - 6 Working Weeks

1050 Litre Slimline Fire Proof Bunded Oil Tank - Atlantis

Fire Protected Oil Tanks

1050 Litre Slimline Fire Proof Bunded Oil Tank – Atlantis

From £6,782.00 Exc VAT (£8,138.40 Inc VAT)

4 - 6 Working Weeks

1350 Litre Slimline Fire Proof Bunded Oil Tank - Atlantis

Fire Protected Oil Tanks

1350 Litre Slimline Fire Proof Bunded Oil Tank – Atlantis

From £7,142.00 Exc VAT (£8,570.40 Inc VAT)

4 - 6 Working Weeks