0333 202 9532 British Gas Complaints

0333 202 9532 is widely listed as the British Gas complaints line for domestic gas and electricity customers, with lines usually open Monday to Friday, 9am to 5pm. Because published contact numbers change, confirm it against the official contact-us page at britishgas.co.uk before you call, and note that it is a customer service line, not the 24/7 gas emergency line.

If you are a bill-conscious household chasing a billing error, a direct debit dispute or slow service, this guide sets out exactly how to raise a complaint, get it formally logged, and escalate it free of charge to the Energy Ombudsman if British Gas does not fix it. Free Price Compare draws on published data from Ofgem, Citizens Advice and the Energy Ombudsman to explain your rights.

Last updated: July 2026

Written by the Free Price Compare editorial team | Reviewed July 2026

Is 0333 202 9532 the right number, and does it cost anything?

0333 202 9532 is the number most commonly published for British Gas domestic complaints, covering gas and electricity issues such as billing, direct debit disputes and complaint handling. Lines are usually staffed Monday to Friday, 9am to 5pm, and closed at weekends. Numbers listed on third-party directories can be out of date, so check the current number on the official British Gas help and support pages before dialling.

Calls to 03 numbers cost the same as calls to a standard 01 or 02 landline number and are included in any inclusive minutes on your mobile or landline plan. In practice that means 0333 202 9532 is free for most callers, and it is never charged at premium rates. When you get through, say “complaint” clearly at the prompt so your call is routed to a complaints handler rather than general enquiries.

0333 202 9532 is not the line for emergencies. For a gas leak, a suspected carbon monoxide release or a damaged gas pipe, call the free 24/7 National Gas Emergency line on 0800 111 999, which covers every gas supplier in Great Britain. For a power cut, dial 105.

How do I complain to British Gas and get it formally logged?

To complain to British Gas you can call 0333 202 9532, use its online complaint form or webchat, or write to the complaints team by post. The single most useful step is to confirm your issue has been logged as a formal complaint with a complaint reference, not just recorded as a general query, because only a formal complaint starts the legal clock running.

A recurring frustration among British Gas customers is being given a reference number that turns out to be a call or query reference rather than a complaint reference. At the end of any call, ask directly: “Please confirm this is logged as a formal complaint and give me the complaint reference.” Note the date, the name of the person you spoke to, and what they promised. Keep copies of every email and letter, as this evidence is what the Energy Ombudsman relies on later.

• Phone: call 0333 202 9532 and say “complaint” at the prompt (Monday to Friday, 9am to 5pm).
• Online: use the complaint form or webchat via the British Gas help and support section.
• Post: write to the Complaints Management Team, PO Box 226, Rotherham, S98 1PB (verify the current address on the British Gas site first).
• Always request a written complaint reference and keep a dated record of every contact.

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How long does British Gas have to resolve a complaint?

British Gas, like every UK energy supplier, must handle a domestic complaint within eight weeks by law. If eight weeks pass from the date you first complained and the issue is not resolved, you gain an automatic right to escalate to the Energy Ombudsman, even if British Gas has not sent you any formal letter about it.

You can escalate sooner if British Gas issues a “deadlock letter”, which is a written statement that it has done all it can and the complaint cannot be resolved between you. A deadlock letter lets you go to the Ombudsman before the eight weeks are up. According to Ofgem, suppliers must have a clear complaints procedure and tell you about your right to use the Energy Ombudsman.

There is also a time limit on your side. You must raise the complaint with the Energy Ombudsman within 12 months of British Gas telling you its final decision, so do not let a stalled complaint drift indefinitely.

How do I escalate a British Gas complaint to the Energy Ombudsman?

The Energy Ombudsman is a free, independent service that investigates unresolved complaints between energy consumers and their suppliers, and it is approved by Ofgem to resolve energy disputes. It is not a government body and it does not charge consumers. You can escalate a British Gas complaint to it once eight weeks have passed since you first complained, or sooner if you have a deadlock letter.

Creating your case online is usually the fastest route, but you can also raise it by email, telephone or post through the Energy Ombudsman. You will need your complaint reference, dates, a summary of what happened and copies of your evidence. The Ombudsman investigates and issues a decision that is binding on British Gas but not on you.

If the Ombudsman upholds your case, British Gas must carry out the actions in the decision, which can include fixing the problem, explaining what happened, correcting a bill or paying compensation. For example, in a billing-error case the Ombudsman may require British Gas to issue a corrected bill and pay a goodwill amount, though any award depends on the individual circumstances. You have 28 days to accept or reject the decision. If you reject it or do not respond within 28 days, you lose the right to that solution but can still pursue other routes, such as the courts.

See how British Gas compares to E.ON Next

How does British Gas complaints performance compare?

British Gas received 142,860 complaints in the first quarter of 2026, which it reported was 3,481 or 2.37% fewer than in the previous quarter, and it recorded 7,474 Ombudsman complaints over the same period (British Gas performance report, Q1 2026). This gives a sense of scale: as one of the largest suppliers, British Gas handles high complaint volumes, so persistence and good record-keeping matter.

On customer service, Citizens Advice found the median supplier score between January and March 2026 was 3.26 out of 5, up from 3.17 the previous quarter. British Gas was rated 2.61, the lowest of the larger suppliers assessed and below the sector median. Across the whole market, the Energy Ombudsman reported 80,256 escalated complaints in 2025, down 14% from 92,938 in 2024.

If poor service is your main reason for complaining, it is worth knowing you can move supplier for reasons unconnected to price. Our guides comparing British Gas and OVO Energy and British Gas and Scottish Power set out the trade-offs.

Figures are indicative and may change.

Complaint stalled or bill still wrong?

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Can I switch supplier while a British Gas complaint is open?

You can switch energy supplier while a complaint with British Gas is still open, and an unresolved complaint does not remove your right to escalate it to the Energy Ombudsman later. Switching does not cancel your complaint, and any refund, correction or compensation the Ombudsman awards still stands after you have moved away.

Two practical points matter before you switch. First, if you are on a fixed tariff, check whether an exit fee applies; our British Gas exit fees and switching guide explains when charges apply and when they do not. Second, if your complaint concerns a disputed balance, keep raising it directly and through the Ombudsman rather than assuming switching resets the account, because the old balance follows the account until it is corrected.

From 1 July to 30 September 2026, Ofgem confirmed the price cap rose by 13% for a typical direct debit household. The cap limits unit rates and standing charges for a typical user rather than fixing a total bill, so if you are on a standard variable tariff, comparing fixed deals could reduce what you pay while your service complaint runs in parallel.

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What if I am vulnerable or the complaint is about a smart meter?

If you are elderly, disabled, chronically ill or in another vulnerable situation, ask to be added to the Priority Services Register, a free scheme every supplier must offer that gives extra support such as advance notice of power cuts and help with meter readings. Mentioning your circumstances when you complain can also change how urgently British Gas handles the issue.

For smart meter faults, billing problems often stem from a meter that has stopped sending automatic readings. Note the exact fault, submit manual readings to keep bills accurate, and log it as a formal complaint if it is not fixed. The eight-week rule and the free Energy Ombudsman route apply to smart meter and billing complaints in the same way as any other domestic energy complaint.

• British Gas Exit Fees & Switching Guide: Avoid Extra Charges
• British Gas Complaints And Customer Service
• British Gas vs E.ON Next – Who Is Better?
• British Gas vs Scottish Power Who Is Better?
• British Gas vs OVO Energy Which Supplier Is Better?

Information correct as of 4 July 2026. Prices, tariffs, policy details and providers change frequently, so please check the latest details before making a decision. This article is for general information only and does not constitute financial advice. Free Price Compare is authorised and regulated by the Financial Conduct Authority (FCA).