--- title: "Emergency Boiler Repair Cost: What to Expect" description: "Boiler broken down? Find out what emergency boiler repairs typically cost, what affects the price, and how to avoid paying more than you should." url: "https://www.myjobquote.co.uk/costs/emergency-boiler-repair" last_updated: "2026-10-22" --- # Emergency Boiler Repair Cost At a Glance - An emergency boiler repair typically costs between £120 and £500, with straightforward repairs often costing around £150 to £350. - Minor repairs usually take 1–2 hours, although more complicated faults or replacement parts may mean the work takes longer. **In this guide:** - A breakdown of emergency boiler repair costs, including call-out fees, labour and replacement parts. - Common boiler faults, what affects repair costs and when a boiler problem is an emergency. - How long repairs take, when to consider replacing your boiler and what to check in a quote. [Get free estimates](https://www.myjobquote.co.uk/heating-engineer) **Are you a trade? [Get more work today!](https://www.myjobquote.co.uk/tradespeople-signup)** An emergency boiler repair in the UK typically costs between **£120 and £500**, with many straightforward faults costing around **£150 to £350**, including parts and labour. The amount you pay will depend on the fault, replacement parts required, repair time and when the engineer attends. Evening, overnight, weekend and bank holiday appointments generally cost more. The emergency call-out and repair may be charged separately. A heating engineer's emergency call-out fee typically ranges from **£75 to £180**, with labour and replacement parts potentially added on top. Any work on a gas boiler must be carried out by a Gas Safe registered engineer who is registered to carry out the relevant type of gas work. ### Average cost of emergency boiler repair: #### Depending on the complexity of the job, it usually takes: 1 day ##### £310 ## How Much Does an Emergency Boiler Repair Cost? The following prices provide a guide to typical emergency boiler repair costs in the UK: | Job | Typical Cost | |---|---| | Emergency weekday call-out | £75–£120, before labour and parts | | Weekday emergency repair | £120–£300 | | Evening emergency repair | £170–£400 | | Overnight emergency repair | £200–£450 | | Weekend emergency repair | £200–£500 | | Bank holiday emergency repair | £250–£550 | | Repair including a common replacement part | £200–£515 | These are indicative ranges rather than maximum prices. Bank holiday appointments, major component faults and some replacement parts can cost more than the typical repair range. For an overnight repair, the first-hour rate may be around **£150 to £260**. Prices can also be higher in London and the South East, so your location should be considered when budgeting for emergency repairs. [Take a look at our boiler repair guide for more information](https://www.myjobquote.co.uk/guides/boiler-repair). ## Emergency Boiler Call-Out Costs Emergency call-out fees typically start at around **£75** before additional parts and labour. Charges may include: ### Minimum Charge Some engineers charge for a minimum of one hour, even if the repair takes less time. ### First Hour The first hour of labour may be included in the call-out fee or charged separately. Check this before booking the appointment. ### Additional Labour Additional labour may be charged by the hour or in 15- to 30-minute increments after the first hour. ### Out-of-Hours Surcharges Evening, overnight, weekend and bank holiday appointments generally cost more. You may pay an additional surcharge or a higher hourly rate, such as 1.5 or two times the engineer's standard rate. ### Travel Travel may be included in the call-out charge. However, an additional fee may apply if the engineer needs to travel a considerable distance. ### Parts Replacement parts are often charged separately from the initial call-out and labour. Before agreeing to an emergency appointment, ask exactly what the call-out fee includes and how additional labour and parts will be charged. ## Emergency Boiler Repair Labour Costs Emergency heating engineer labour rates can start at around **£60 per hour**, with day rates of approximately **£380**. Hourly rates can be higher in London and the South East, where you could pay around **£75 to £95 per hour**. Emergency rates in some circumstances can rise to around **£120 to £220 per hour**. Some engineers charge by the hour, while others provide a fixed repair price. Minor faults, such as some thermostat or pressure problems, may take around one or two hours to diagnose and repair. However, diagnosing more complicated faults can take longer, particularly when an error code has several possible causes. If a replacement part isn't available immediately, a second visit may be required. ## Emergency Boiler Repair Parts and Supply Costs Replacement part prices vary considerably depending on the boiler make, model and component required. Typical costs include: | Boiler Part | Typical Cost | |---|---| | Thermocouple | £70–£170 fitted | | Pressure relief valve | £80–£200 fitted | | Thermostat | £80–£200 fitted | | Pump | £100–£200 supply only | | Fan | £65–£260 supply only | | Gas valve | £70–£240 supply only | | Diverter valve | £25–£200 supply only | | Printed circuit board (PCB) | £250–£500 fitted | | Heat exchanger | £300–£650 supply only | Similar boiler symptoms can have different causes, so the fault needs to be diagnosed before replacement parts are fitted. ## Common Emergency Boiler Repairs ### Boiler Not Producing Heating or Hot Water A lack of heating or hot water can have several causes, including problems with the pump, PCB or diverter valve. The final cost will depend on the fault identified. A boiler breakdown labour charge may be around **£275** for a relatively straightforward job. ### Boiler Losing Pressure Pressure loss can be caused by a leak, expansion vessel problem or faulty pressure relief valve. Labour for this type of repair can cost around **£180**, while replacing a pressure relief valve can cost between **£80 and £200**. ### Boiler Leaking Water Not every boiler leak is an emergency, but escaping water can cause damage if it isn't addressed. A problem with a valve or seal will generally cost less to repair than a faulty heat exchanger. Heat exchanger repairs can cost from around **£430 to almost £1,000**. ### Boiler Making Unusual Noises Banging, gurgling or whistling noises can be associated with problems such as a failing pump, sludge or limescale. Pump replacement typically costs around **£230 to £455**, including labour. ### Boiler Keeps Switching Off A boiler that repeatedly switches itself off could have a blocked condensate pipe, low pressure or a problem with the fan or air pressure switch. Repairs involving the fan or air pressure components can cost around **£150 to £520**. ### Boiler Won't Ignite Ignition failure can be caused by components such as the PCB, ignition system or gas valve. Gas valve repairs can cost approximately **£200 to £500**. ### Frozen Condensate Pipe During freezing weather, the external condensate pipe can freeze and cause the boiler to shut down. Follow the boiler manufacturer's instructions for dealing with a frozen condensate pipe. If you're unable to resolve the problem safely, contact a heating engineer. ### Faulty Diverter Valve On a combi boiler, a faulty diverter valve can cause problems directing hot water between the taps and central heating system. Diverter valve repairs typically cost between **£160 and £455**. ### PCB Failure The printed circuit board controls many of the boiler's functions and sensors. Replacing a PCB typically costs around **£250 to £500**, although prices can be higher depending on the boiler and your location. If you have an older boiler that requires an expensive component, it may be worth comparing the repair cost with the price of replacing the boiler. ## What Affects Emergency Boiler Repair Costs? Several factors can affect how much you'll pay. ### Time of Call-Out Evening, overnight, weekend and bank holiday appointments generally cost more than standard weekday visits. ### Type of Fault A straightforward pressure problem may cost considerably less to address than a fault involving a major component such as the heat exchanger. ### Replacement Parts Component prices vary significantly, so the part required can have a major impact on the final bill. ### Boiler Make and Model Replacement parts for some boiler models are more expensive than others. ### Boiler Age Parts for older boilers can be harder to source, potentially increasing the cost and repair time. ### Location Labour and emergency call-out rates are generally higher in London and the South East. ### Repair Time More complicated faults that take longer to diagnose and repair will usually result in higher labour costs. ### Accessibility A boiler that's difficult to access can take longer to inspect and repair. ## Additional Emergency Boiler Repair Costs Depending on the fault, additional work may be recommended alongside the emergency repair. This could include: - Repairing leaks elsewhere in the heating system - Power flushing the system - Thermostat replacement - Radiator repairs or valve replacement - Boiler servicing - Electrical repairs associated with the boiler - Gas safety checks - Boiler replacement if repairing the existing system isn't cost-effective Before agreeing to additional work, ask why it's needed and whether it's included in the original quote. ## When Is a Boiler Problem an Emergency? Some boiler faults are inconvenient, while others can indicate an immediate safety issue. Situations requiring urgent attention can include: - A suspected gas leak - Signs of combustion problems, such as soot staining or unusual flame colour - A carbon monoxide alarm sounding - Significant water leaking from the heating system - Electrical faults - Complete loss of heating where vulnerable occupants may be at risk during cold weather If you smell gas or suspect a gas leak, contact the **National Gas Emergency Service on 0800 111 999**. Open doors and windows, extinguish naked flames and don't operate electrical switches. If it's safe to do so, turn off the gas supply at the emergency control valve. A carbon monoxide alarm sounding should also be treated seriously. Leave the affected area and follow the emergency advice provided by the relevant authorities. Problems such as lukewarm radiators or a slow drip aren't always emergencies. If you're unsure whether urgent attendance is required, contact an appropriate heating engineer for advice. ## What Should I Do If My Boiler Breaks Down? If there are no signs of a gas leak, carbon monoxide or another immediate safety issue, there are some basic checks you can make before arranging a repair. You can: - Check the boiler display for an error code and consult the manual - Check the thermostat and timer settings - Check the boiler pressure - Check whether other appliances or services are affected - Reset the boiler only if the manufacturer's instructions say it's appropriate - Check whether your property has a power cut Don't remove the boiler casing or attempt to carry out gas repairs yourself. Gas work must be carried out by a Gas Safe registered engineer who is registered for the relevant type of work. ## Gas Safe Registration and Emergency Boiler Repairs Anyone carrying out gas work in the UK must be appropriately registered with the Gas Safe Register. Before work begins, you can ask to see the engineer's Gas Safe ID card. The back of the card lists the types of gas work they're registered to carry out, so check that their registration covers boilers. You can also use MyJobQuote to [find a local gas boiler engineer or heating engineer](https://www.myjobquote.co.uk/plumber). ## How Long Does an Emergency Boiler Repair Take? Repair times depend on the fault and whether replacement parts are immediately available. | Stage or Repair | Typical Time | |---|---| | Initial diagnosis | 30–60 minutes | | Minor repair | 1–2 hours | | Common part replacement | 1–3 hours | | More complicated fault | Several hours to a full day | | Repair requiring an ordered part | Often 1–2 days or longer | Parts for older or less common boilers can take longer to source. During an emergency appointment, the engineer may be able to make the boiler safe but not complete the repair until a replacement part is available. Ask whether a return visit is included in the quoted price or will be charged separately. ## Emergency Boiler Repair vs Boiler Replacement Sometimes replacing an older boiler can make more financial sense than continuing to pay for repairs. If your boiler is more than 10 to 15 years old and regularly breaks down, it may be worth comparing the repair price with the cost of a replacement. You may also want to consider replacement when: - A major component has failed - Replacement parts are becoming difficult to source - Repair costs are approaching a significant proportion of replacement costs - The boiler regularly requires repairs [Take a look at our boiler installation cost guide to find out more](https://www.myjobquote.co.uk/costs/installing-a-new-boiler). ## Does Boiler Cover Include Emergency Repairs? Whether you're covered for emergency boiler repairs depends on your individual policy. Standalone boiler cover can cost around **£8 to £13 per month** for some monthly plans, while other policies may cost **£180 to £300 per year**. These are different example pricing ranges, so check what each policy includes. Home insurance with home emergency cover may also include certain boiler call-outs. Check your policy for: - Excess charges - Maximum claim values - Pre-existing fault exclusions - Waiting periods - Boiler age limits - Parts that aren't covered - Limits on the number of call-outs Policy terms vary considerably between providers, so check your own documents before arranging a repair on the assumption that it'll be covered. ## What Does an Emergency Boiler Repair Quote Include? Before accepting a quote, check whether the price includes: - Call-out charge - Diagnosis - First hour of labour - Additional labour - Replacement parts - Travel - Out-of-hours surcharges - VAT - Follow-up visits It's particularly important to establish whether the call-out charge includes any labour and whether you'll pay separately if the engineer needs to return with a replacement part. ## FAQs ### How much does an emergency boiler repair cost? Many emergency boiler repairs cost between **£120 and £500**, although bank holiday visits and major component repairs can exceed this range. The final price depends on the fault, parts required and when the engineer attends. ### How much is an emergency boiler call-out? Emergency boiler call-outs typically start at around **£75**. Evening, overnight, weekend and bank holiday appointments can cost considerably more. The call-out charge may not include labour, parts or the repair itself, so check what's included before booking. ### Who can repair a gas boiler? Gas boiler work must be carried out by a Gas Safe registered engineer whose registration covers the relevant type of work. ### What counts as a boiler emergency? Potential emergencies include a suspected gas leak, a carbon monoxide alarm sounding, combustion problems, significant water leaks and electrical faults. A complete loss of heating can also require urgent attention when vulnerable occupants are at risk during cold weather. ### How long does an emergency boiler repair take? Minor repairs can take around one to two hours. More complicated problems can take considerably longer. If a replacement part needs to be ordered, the repair may require a second visit.