Compare heating oil prices from suppliers delivering to Castlewellan and across County Down. Updated July 2026.
Cheapest Price Seen In Your Area
Regional Average
89.8p/litre
Based on 490+ quotes across County Down today
Compare oil prices NI-wide for Castlewellan with one search. We show today's cheapest oil prices in Northern Ireland from suppliers covering County Down, so you can lock in the lowest rate before placing your order.
Local Market Insight: Northern Ireland heating oil costs are driven mostly by depot proximity and bulk-buying season. For homes in Castlewellan and across County Down, the gap between the cheapest and most expensive supplier can be 4–6p per litre on the same day.
Price Variation
17.8p range across recent PE postcode-area quotes
Potential Savings
vs average across recent PE postcode-area quotes
500L Heating Oil Estimate
At the best recent PE postcode-area rate
Based on recent PE postcode-area quotes
Best price today
£432
86.3p per litre
Area average
£449
89.8p per litre
Ordering 1,000 litres costs approximately £863–£898 at current rates and often carries a lower per-litre price. Prices change daily.
Domestic heating oil — also known as kerosene or 28-second oil — is the standard fuel for oil-fired boilers in Castlewellan. All prices above include 5% VAT.
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