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  • How do I book an annual service or maintenance inspection?

    • 🛠️

      Keeping your boiler and heating system in good shape isn’t just about comfort—it’s about safety, efficiency and peace of mind. If you’re a British Gas customer, booking your annual service or maintenance inspection is straightforward. This guide walks you through every step, whether you prefer online, app or phone booking.

      Why Book an Annual Service?

      Annual servicing helps:

      Spot issues early before they become costly

      Keep your boiler running efficiently

      Ensure your system is safe and compliant

      Maintain your warranty or HomeCare cover

      When Can You Book?

      You can book your annual service up to three months in advance. British Gas will usually send a reminder by post or email, including a seven-character booking code. Even if you don’t have a code, you can still book online or via the app.

      Step-by-Step: Booking Your Service

      Option 1: Book Online with a Booking Code

      Go to the British Gas service booking page

      Enter your booking code and postcode

      Choose a date and time that suits you

      Confirm your booking

      Option 2: Book Online Without a Code

      Log in to your British Gas online account

      Go to the “Book a service” section

      Select your boiler or heating system

      Pick a date and time

      Confirm your booking

      Option 3: Use the British Gas App

      Download the app from the iOS App Store or Google Play

      Log in with your British Gas account

      Tap “Book a service”

      Choose your preferred date and time

      Confirm your booking

      Option 4: Call British Gas

      Call 0330 808 3880

      Have your account details ready

      Let the advisor choose a convenient slot for you

      What Happens During the Service?

      A British Gas engineer will visit and carry out a thorough inspection. You can expect:

      Gas pressure and flow checks

      Flue inspection for blockages or leaks

      Testing of boiler controls and safety devices

      Internal component cleaning if required

      A written service report with findings

      HomeCare Cover Customers

      If you’re on a British Gas HomeCare plan, your annual service is included. You still need to book it, but there’s no extra charge. You’ll also get priority slots and emergency repairs if needed.

      Rescheduling or Cancelling

      You can reschedule or cancel up to 24 hours before your appointment via your online account, the app or by calling customer service. Always give as much notice as you can.

      Tips for a Smooth Service Visit

      Clear access to your boiler and controls

      Keep pets away from the work area

      Be home during the scheduled time

      Ask the engineer any questions you have

      After the Service

      You’ll receive a written service report, notes on any issues, recommendations for repairs or upgrades, and confirmation that your system is safe. Keep this report for insurance or warranty purposes.

      If Repairs Are Needed

      Minor fixes may be done on the spot

      Larger issues may require a follow-up visit

      You’ll receive a quote before any extra work begins

      HomeCare customers may have repairs covered, depending on their plan.

      Need Help?

      If you run into issues booking or have questions, visit the British Gas Help & Support page, use live chat or call 0330 808 3880.

      Booking Made Simple: At a Glance

      Method What You Need How to Book
      Online (with code) Booking code + postcode Service booking page
      Online (no code) British Gas account Log in and book via your account dashboard
      App Smartphone + account Use the British Gas app
      Phone Account details Call 0330 808 3880

      Final Thought

      Booking your annual service with British Gas is quick, flexible and essential for keeping your home safe and warm. Choose the method that suits you best and enjoy year-round peace of mind.

    • View More: British Gas How do I book an annual service or maintenance inspection?
  • How do I know when my next gas annual service is due?

    • To find out if your gas annual service is due, you can wait for us to let you know, or check online.

      1. log in or register, this will open in a new window
      2. if your annual service is due it will be displayed in the 'annual service visit' section of 'your account' page

      You can book your gas annual service from one month before its due date.If, when you look online, there's no option to book your annual service that's because it's not yet due. Don't worry though, we'll contact you to let you know when it's due.

      Don't have an online account? 
      We'll let you know when your gas annual service is due by contacting you up to 3 months before (by phone) and then we'll send you reminders by post, email or text message. Alternatively you can contact us on 
      0800 294 9678.*

      *Calls may be recorded and/or monitored for quality assurance and compliance purposes.


    • View More: British Gas How do I know when my next gas annual service is due?
  • How long does the annual service or maintenance inspection take?

    • The length of a gas annual service, plumbing or electrical maintenance inspection will vary and depend on:

      • what's included in your HomeCare® agreement
      • the age, size and condition of your appliances or products
      • if any repairs or additional work is needed

      If you book your annual gas service online you can choose a 2-hour appointment window. If you book over the phone you can only choose an AM or PM appointment.

      There are different expert engineers for each of your products - gas, plumbing, electrical wiring and kitchen appliances. Unfortunately, we're not able to guarantee that these engineers will be available to attend at the same time or on the same day.

    • View More: British Gas How long does the annual service or maintenance inspection take?
  • When is my next plumbing or electrical maintenance inspection due?

  • Is my annual service or maintenance inspection counted as a callout?

  • How do I book an engineer to fix a breakdown?

    • A clear, step-by-step guide for British Gas customers

      To book a British Gas engineer for a breakdown, log in to your online account or use the British Gas app. If it’s an emergency or you don’t have an account, call British Gas directly. This article explains how to book, what to expect, and practical tips to make the visit go smoothly.

      Who can book a British Gas engineer

      British Gas offers repair services whether you have a HomeCare plan or need a one-off repair. You do not need to buy energy from British Gas to book an engineer.

      What can British Gas fix

      Boiler and central heating breakdowns
      Radiators, thermostats, and timers
      Electrical issues such as fuse boxes, sockets and lights
      Plumbing and drains
      Home appliances including washing machines and ovens

      Option 1: Book online (recommended for HomeCare customers)

      Booking online is usually the fastest option for HomeCare customers. You can choose a time that suits you and get email confirmation.

      How to book online

      Go to the Book an engineer page
      Log in to your British Gas online account or register with your customer details
      Select the type of breakdown (boiler, heating, electrics)
      Choose a date and time
      Book an engineer online

      Option 2: Book by phone

      If you prefer to speak to an agent, call British Gas. Be ready with your account number if you have one.

      Important: If you think there is a gas leak or an immediate risk to life or property, call 999 first. For gas emergencies the National Gas Emergency Service is available.
      HomeCare customers (urgent or non-urgent): call British Gas direct
      One-off repairs (non-customers): call for a fixed-price quote
      Plumbing and drains: some services are handled on specialist lines

      What if it’s an emergency

      For any suspected gas leak, smell of burning, or immediate danger, call 999 then report the issue to British Gas or the gas emergency line. Do not attempt complex repairs yourself.

      What if you’re not covered

      If you don’t have HomeCare, you can still book a one-off repair. British Gas will give a fixed price before work starts so you know the cost up front.

      Can I track my engineer?

      Yes — after your appointment is confirmed you can track the engineer’s progress via the British Gas app or online account to see when they’re on their way.

      What to do before the engineer arrives

      Clear the area around the boiler or appliance
      Keep pets and children away from the work area
      Ensure someone over 18 is at home for the visit
      Have your account number handy if you call

      What happens after the repair

      After the engineer completes the work you should receive a summary of the job. If parts were replaced they may come with a warranty and British Gas often guarantees return visits for the same fault during the guarantee period.

      Who are the engineers

      British Gas engineers are trained, insured and Gas Safe registered. They carry tools and common spare parts to fix most problems on the first visit.

      Rescheduling, cancellation and payment

      You can reschedule or cancel appointments via the app or online account
      HomeCare customers: covered repairs usually do not incur extra charges
      One-off repairs: you will receive a fixed quote before work begins

      Quick tips for a smooth booking

      Check your HomeCare cover before booking to avoid surprises
      Use the British Gas app for faster booking and real-time tracking
      Book early in winter when demand is higher
      Keep your contact details up to date for appointment messages
      Sources
      British Gas — Book an engineer (official page): https://www.britishgas.co.uk/cover/book-an-engineer
      General booking guidance and contact information (third-party summary): https://www.energycompanynumbers.co.uk/how-to-book-a-british-gas-engineer-for-a-breakdown/
    • View More: British Gas How do I book an engineer to fix a breakdown?
  • Central Heating Troubleshooting

    • Troubleshooting checklist

      There could be a number of reasons why your central heating or hot water isn't working. You can fix several problems yourself, avoiding a callout and - if you're a HomeCare® customer - possibly saving you money. Try these tips first:


      • check the gas, electrical and water supplies to the appliance are turned on. It's surprising how easily they can get accidentally switched off
      • check the thermostat is turned up and the clock timer is on
      • some boilers have a pressure gauge showing system water pressure, this usually needs to be at around 1 bar, read more about system pressure
      • got a system with a permanent pilot light? Check that it hasn't gone out - this is a very common problem with older appliances
      • try putting your heating on maximum for a short while to see if you can get it back into action
      • have the clocks gone forward or back? Your clock programmer might just need adjusting to the right time
      • has there been a power cut recently? Your heating clock programmer may have returned to its factory settings when the power came back on. Test the central heating by setting it to come on in 15 minutes time - if that works, simply re-enter your preferred settings
      • do you have a customer-operated reset switch (not one that needs you to remove any casing)? These are usually found on the front of modern boilers: check your user manual to see if it needs resetting
      • try turning the electrical supply to the boiler off and on - the switch is usually near the boiler or in the airing cupboard. This might reset your boiler and resolve the problem
      • could you have frozen pipes? In periods of long, cold weather, the condensate pipe of your boiler can freeze. See my pipes have frozen
      • are other gas appliances affected? If so the problem is bigger and you need to Book a callout

      For open vented system boilers 
      (You have this type of boiler if it has a small black tank. You'll usually find these in the loft.)

      Has the ball valve float in the feed and expansion cistern got stuck?
      (this is usually a small plastic or steel tank situated in the loft)

      If so, when your water system falls to a certain point, system water can't circulate. If you can safely and easily get into and move around your loft, check to see if the ball valve is stuck (usually indicated by no or low water in the cistern). Gently move the ball float valve arm to free it - do not use force. This may solve the problem.

      For sealed system boilers or combination boilers 
      (You have this type of boiler if it doesn't have a cistern that looks like a smaller version of your cold water cistern.)

      • has the system pressure dropped? This is sometimes caused by water leaks, and can stop the boiler from working properly: 

        1. check the pressure gauge - this should be set at 1 bar. A red indicator needle sometimes shows the position set when the boiler was installed.

        2. look in your user manual to see if you can re-pressurise the boiler yourself - you can also find instructions on the rear of the control panel. But if your boiler panel needs tools to remove it, do NOT touch it: Book a callout instead.

    • View More: British Gas Central Heating Troubleshooting
  • I'd like to know how I change the time or date of the breakdown appointment

    • Plumbing and Drainage appointments , call us on 0800 294 9650* to change your appointment time/date.

      All other breakdown appointments.

      To change the time/date of your breakdown appointment:

      1. go to 'log in or register', this will open in a new window
      2. select your 'Maintenance & Repair account'
      3. scroll down to your 'Appointment Diary'
      4. click the + symbol, as shown below
      5. change your appointment date or time

      Alternatively, if you prefer you can call us to change the date or time of 
      your appointment on 0845 950 0400.*

      *Calls may be recorded and/or monitored for quality assurance and compliance purposes.

    • View More: British Gas I'd like to know how I change the time or date of the breakdown appointment
  • I think my boiler might need replacing

    • Do you think your boiler is too old or not energy efficient enough? An energy-efficient boiler can cut your bills by up to £225 a year^.

      We can help you decide if your boiler needs replacing by looking at:

      • its make and model
      • whether it suits your property

      For an energy efficiency rating for your boiler, just fill out our 
      simple checklist
       or call us on 0800 072 8629.*

      As a guide, boilers rated A are the most efficient and those rated G or below are among the least efficient. At British Gas, we only install A-rated boilers.

      Boiler upgrade offers

      From money off installation to free boiler and central heating care, we update our offers for new boilers regularly. Check out our latest offers on new boilers.

      Need a boiler quote? Arrange a consultation to get a quote for your new boiler by calling us on 0800 009 4450*.

      ^Source Energy Saving Trust (September 2010)

      *Calls may be recorded and/or monitored for quality assurance and compliance purposes.


    • View More: British Gas I think my boiler might need replacing
  • I think I have a gas leak: what do I do?

    • Smell gas? Call the Gas Emergency Services on 0800 111 999.

      If you think you could have a gas leak you'll need to turn off the gas supply at the meter

      How to turn off your gas supply

      1. find the gas Emergency Control Valve. This is often outside in a meter box. If not, look under the stairs, under the kitchen sink and in the garage
      2. turn the Emergency Control Valve's handle a quarter turn so the lever is at 90 degrees to the Emergency Control Valve's body

      Next steps:

      1. open all windows and doors
      2. don't turn electrical switches on or off - including your TV, computer, oven, etc
      3. put out any naked lights (flames), eg your hob or candles. Don't smoke, strike matches or do anything that could cause ignition
      4. open any electric doors or gates manually

      Carbon monoxide poisoning

      Carbon monoxide is an odourless, colourless gas and exposure to it can be fatal. It's produced when products containing carbon, typically fossil fuels, are burnt without enough oxygen.

      To prevent this, boilers and central heating systems need regular servicing. A carbon monoxide detector - although not an alternative to regular servicing - will monitor the area it's fitted in and provide an early warning if something is wrong.

      Find out more about carbon monoxide.

    • View More: British Gas I think I have a gas leak: what do I do?
  • What is Carbon Monoxide?

    • Carbon Monoxide (CO) is a highly poisonous and sometimes deadly gas, produced when fuels such as coal, wood, oil or natural gas are burned without sufficient air. It's often emitted by appliances which haven't been properly installed or maintained, so always ask a Gas Safe registered engineer to install and service your gas appliance. CO is odourless, tasteless and invisible, so its difficult to detect.

      The symptoms of Carbon Monoxide poisoning can be similar to flu. If you suspect Carbon Monoxide poisoning you may suffer from:

    • headaches
    • nausea
    • general lethargy
    • dizziness
    • flu-like symptoms that appear to get better when you are away from the area

    • There's nothing more important than your safety. So if you are concerned about Carbon Monoxide, please call the Gas Emergency Services immediately on 0800 111 999, textphone 18001 0800 371 787.

      Read more about Carbon Monoxide.

    • View More: British Gas What is Carbon Monoxide?
  • I have no electricity

      1. check your trip-switch(s) or fuse(s) to see if there is a fault with your wiring or an appliance. If all your appliances are affected see 2) below
      2. check if your neighbours are affected. If so, it's possible the power is off in your local area so please contact your local electricity network operator - they should be able to give further guidance and say roughly how long the power will be off for
      3. turn off appliances, but keep one light on so that you know when the power comes back on
      4. if it's just your home affected and you have Home Electrical Care, please call us on 0800 980 6004*. If you don't have cover with us, we can provide one-off repairs, call 0800 000 999*

      If you have a Pay as you go meter, see our advice for Pay As You Go Energy™ customers , without electricity.

      Safety advice if you are without electricity:

      • don't use your gas cooker to heat your home - they are not designed for this purpose and this can cause carbon monoxide poisoning.
      • be careful with other forms of heating and lighting, such as paraffin heaters and candles

      For more advice on problems you may be able to fix yourself, see theBritish Gas Electricity Troubleshooter.

      *Calls may be recorded and/or monitored for quality assurance and compliance purposes.

    • View More: British Gas I have no electricity
  • What is a Boiler and Breakdown Discount/Charge?

    • Your agreement price is calculated based on a number of factors. In order to make our pricing policy fair to all our customers, the amount we charge for your HomeCare® cover could be affected by:

      • the make and model of your boiler
      • the age of your boiler
      • how often it has broken down in the last two years
      • how expensive it is to repair.
      • where you live

      If you have HomeCare 300™ your total charge or discount will also be influenced by any callout history for your 'Plumbing and Drains' during the last two years.

      If you have HomeCare 400™ your total charge or discount will also be influenced by any callout history for your plumbing and drains and/or home electrics during the last two years.

      If you pay a fixed fee per completed repair with our Flexi™ range of products your total charge or discount may also be influenced by any callout history during the last two years.

    • View More: British Gas What is a Boiler and Breakdown Discount/Charge?
  • How many callouts am I allowed before my price goes up?

    • Your agreement price is based on a number of factors and is not exclusively calculated on the number of times that you call us out to fix your boiler or central heating system. If you have a HomeCare® agreement with us, you can call us for any problem, large or small with no additional charge in that agreement year.

      However, your renewal price the following year will take into account the number of times you have called us out over the previous 2 years to fix a problem. As a result you may therefore see a difference in the renewal price of your agreement.


    • View More: British Gas How many callouts am I allowed before my price goes up?
  • Why has my HomeCare® price gone up as I didn't call you out last year?

    • Your agreement price is based on a number of factors and is not exclusively calculated on the number of times that you have called us out to fix your boiler, central heating system, plumbing and drains or fixed home electrics.

      Other factors such as your boiler age and type, your breakdown history over the last 2 years and other market and commercial factors are also taken into account. So even if you are lucky enough not to have needed to call us in the last year, you may still see a difference in this year's agreement price compared to last year.

      Find out more about HomeCare® pricing

    • View More: British Gas Why has my HomeCare® price gone up as I didn't call you out last year?
  • Why do you look at the last 2 years of my callout history?

    • Research has shown that there is a clear relationship between breakdown history and the likelihood of further breakdown. However, you may have been unlucky and had to call on our services more in the last year than you have ever had to previously. That's why we consider your breakdown history over a longer period of time to balance out any peaks or troughs and to make sure a fair price is calculated for the next year of your agreement.

      This calculation may apply to all our HomeCare® products, including standalone Plumbing Care™, Plumbing & Drains Care™ and Home Electrical Care™. It may also apply to customers who pay a fixed fee per completed repair with our Flexi™ range of products.

    • View More: British Gas Why do you look at the last 2 years of my callout history?
  • I only took out my HomeCare® agreement last year. Why has my price gone up so much from my original purchase price?

    • When you join us as a new customer, the limited information we have about you and your circumstances means that we have to estimate your joining price. However, as our relationship with you grows, we learn more about you, your boiler and central heating system, and our prices sometimes adjust to reflect this.

      This adjustment may apply to all our HomeCare® products, including standalone Plumbing Care™, Plumbing & Drains Care™ and Home Electrical Care™. It may also apply to customers who pay a fixed fee per completed repair with our Flexi™ range of products.

    • View More: British Gas I only took out my HomeCare® agreement last year. Why has my price gone up so much from my original purchase price?
  • I used to get a "No Usage Bonus" but now I don't. Why is that?

  • What is a Breakdown Discount/Charge calculation on my standalone Plumbing Care™, Plumbing & Drains Care™ or Home Electrical Care™?

  • What can I do to keep my Plumbing & Drains Care™ or Home Electrical Care™ prices down?

  • My plumbing, drains and electrics are old - does that mean that I will have to pay more for my agreements?

    • Just because plumbing, drains and electrics are old it doesn't necessarily mean that they will be expensive to maintain. If you do have old or troublesome plumbing, drains or electrics, you can have the peace of mind that comes with having experts on hand to resolve any problems. However, you may wish to consider installing replacement plumbing, drains and electrics, or look at other options to reduce your costs.

      Our Help and Advice section could provide you with the information you are after, or try contacting our customer services on 0845 072 8629*

      *Calls may be recorded and/or monitored for quality assurance and compliance purposes.

    • View More: British Gas My plumbing, drains and electrics are old - does that mean that I will have to pay more for my agreements?
  • What can I do to help bring down my Homecare® price?

    • There are a number of ways we can help you improve your central heating's efficiency and help save you money on your bills. For more information, look at our Central Heating Improvements section, speak to one of our engineers during your Annual Service visit, or try contacting our customer services on 0845 072 8629*

      We have a number of different insurance and service options that are designed to fit all requirements and budgets, whilst offering the peace of mind that many breakdowns and expensive boiler repairs are covered.

      The Maintenance and Repair section of our Website shows you the different options available to you so that you can review, and if required, change your agreement to one more suited to you.

      *Calls may be recorded and/or monitored for quality assurance and compliance purposes.

    • View More: British Gas What can I do to help bring down my Homecare® price?
  • How much am I paying for my HomeCare® and what's covered?

    • To find out how much you're paying:

      • check a recent HomeCare® letter from us (eg your welcome, renewal or account change confirmation letter)
      • check your bank statement if you pay by Direct Debit

      You can see what type of HomeCare® you have if you log in to your online account. To check what's covered, select 'view account' on your Maintenance & Repair account and then scroll down to see the HomeCare® guide or your terms and conditions.

      Don't have an online account yet? Get your Homecare®agreement number from one of our letters and register now.


    • View More: British Gas How much am I paying for my HomeCare® and what's covered?
  • What is classed as a callout?

    • We class a breakdown callout as every time you contact us to request one of our engineers to visit your home to resolve a problem. Each breakdown will be classed as one call out, regardless of the number of visits it takes us to get you up and running again.

      A callout relates to all our HomeCare® products, including standalone Plumbing Care™, Plumbing & Drains Care™ and Home Electrical Care™. It may also apply to customers who pay a fixed fee per completed repair with our Flexi™ range of products.


    • View More: British Gas What is classed as a callout?
  • What if your engineer cannot fix my boiler, plumbing, drains or home electrics and you have to send another engineer, is this classed as a callout

    • We do our best to resolve problems on the first callout, but sometimes you need to call us out again. If you're calling about the original problem which is not fixed, we will not class this as an additional callout.

      If we have to send another engineer:
      Our engineers are carefully selected to make sure their skills are appropriate for your problem. Sometimes a second opinion or an engineer with more specialist skills is required. This is classed as part of the same problem, and is not an additional callout.

      As well as to repairs under HomeCare®, this also applies to repairs under standalone Plumbing Care™, Plumbing & Drains Care™ and Home Electrical Care™. It also applies to customers on our Flexi™ range of products who pay a fixed fee per completed repair.

      *Calls may be recorded and/or monitored for quality assurance and compliance purposes.

    • View More: British Gas What if your engineer cannot fix my boiler, plumbing, drains or home electrics and you have to send another engineer, is this classed as a callout
  • How many callouts are included within my price?

    • You have unlimited callouts each agreement year included with your agreement price. If you have one of our HomeCare® agreements, you can call our free helpline which is manned 24 hours a day, 365 days of the 
      year - in the event of a breakdown.

      However, the amount of times you call us out over the previous two years is one of the many factors that will be taken into account when calculating your price for your agreement renewal price.

    • View More: British Gas How many callouts are included within my price?
  • British Gas installed my boiler - if something goes wrong will my HomeCare® price go up?

    • Whenever we install a boiler, we guarantee all parts and labour for a period of time. Any additional guarantee we offer does not affect your statutory rights. We honour our guarantee by giving installation customers free HomeCare® for one year. Any callouts you have in your free year's HomeCare® will not be taken into account. This means that you will not have any increase in price for a full two years from the date your installation was completed.

      The renewal price that you get, one year after your free year of HomeCare® comes to an end, will reflect any callouts that you've had.

    • View More: British Gas British Gas installed my boiler - if something goes wrong will my HomeCare® price go up?
  • Your engineers installed MagnaClean®/PowerFlush® but my HomeCare® price has now gone up - why?

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