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Vaillant boiler care: Repairs and servicing

boiler in a kitchen
boiler in a kitchen

Boiler repair

Out-of-guarantee boiler repairs

If you need a repair and your boiler is out of guarantee, we offer a choice of two repair options - a repair and care plan or a one-off repair option to get your boiler working again.

Your boiler repair options

Repair & Care Plan

Repair & Care is a maintenance and support plan for your broken-down boiler, providing a one-off repair (where repairable) and then ongoing maintenance and support for your boiler and controls, to help ensure they continue to work correctly and to minimise the chances of mechanical and electrical breakdown.

£71.40 a month for 6 months totalling £428.80 (inc. VAT) by Direct Debit

Set up your plan and book your initial Repair & Care appointment through our online service portal, myVAILLANT Web.

Fixed Price Repair

The Fixed Price Repair option is a one-off package designed for broken boilers that aren't within their manufacturer's guarantee. All of our repairs also include a gas safety check.

£399.00 one-off payment (inc. VAT)*

Book your Fixed Price Repair through our online service portal, myVAILLANT Web.

Find out more about our repair options

  • Repair & Care Plan

    If you have taken out a Repair & Care plan, you have a no fix no fee promise. If the engineer can't fix the initial fault or if the boiler is beyond economic repair, you'll get a full refund of any monies paid up under the plan until that point - no questions asked.

    This maintenance & support plan is provided by Domestic & General Services Limited. The plan provides you with maintenance and support services to help keep your boiler properly maintained, supported and in good working order.

    Benefits of our Repair & Care Plan

    Initial Repair - Initial repairs up to the value of £1,500 if your boiler stops working and repair by one of our Gas Safe engineers to get your boiler back up and running.

    Continued Support - Ongoing hints and tips to help keep your boiler in good working order.

    Maintenance - Our Gas Safe engineers will perform maintenance checks at the same time as your initial repair to help maintain your boiler.

    Exclusive Portal Access - Exclusive access to Domestic & General's Boiler Care portal to keep your boiler in good working order.

    Main exclusions of the Repair & Care Plan include: scale, sludge and hidden pipework, repairs related to the installation of the boiler, cosmetic or malicious damage, and indirect costs e.g. gas supply.

    How can I set up a Repair & Care Plan?

    You can pay monthly by Direct Debit over the length of the plan. When you pay by Direct Debit you are protected by the Direct Debit Guarantee.

    Direct Debits usually start after the engineer visit, you can choose a payment date between 1st and 28th of each month. If at the point of initial repair the boiler can't be fixed your Direct Debit is cancelled under our no fix no fee promise.

    The payments are spread over these 6 months. It will automatically renew at the end of the 6 months to the standard gold maintenance and support plan unless you inform us otherwise. This will include an annual service too, ensuring there is no break in your boiler protection.

  • Fixed Price Repair

    Benefits of a Fixed Price Repair

    Parts and labour guarantee - All parts fitted are guaranteed for 12 months, and all labour is covered for 90 days. Vaillant engineers are experts in our products, and carry large stocks of genuine Vaillant spare parts - which means we can achieve a 95% first-time fix rate.

    We use genuine Vaillant spare parts for the repair, in fact, our engineers carry out over 600 parts on their vans to ensure that we can offer a fantastic 95% first-time fix rate. All parts fitted are guaranteed for 12 months. Our labour is also guaranteed for 90 days.

    Parts included - All parts are included, excluding the Heat Exchanger and Expansion Vessel.

    Gas safety check included - All of our fixed price repairs include a gas safety check for additional peace of mind for you and your family.

    A Fixed Price Repair is a one-off payment of £399 made at the point of booking.

    We will be able to repair any eligible Vaillant boiler unless it is uneconomical to do so. In which case, we will provide advice on a suitable product to replace the boiler. If we can't repair your boiler, we'll only charge you for the fixed engineer time (for £99).

In-guarantee repairs

If your boiler is still within its guarantee, and you need a repair. please call this number: 0330 100 3150**

Opening hours:
Monday - Friday: 8am - 6pm
Saturday: 8am - 3pm
Sunday: 8am - 12pm

Boiler service

Why book a Vaillant annual boiler service?

By booking with Vaillant, you will benefit from a rigorous 14 point check on your boiler by an expert, in-house factory trained engineer - who better to look after your boiler than the people who made it?

Having your boiler serviced once a year by a Gas Safe registered engineer ensures that you:

  • maintain your guarantee after the first year.
  • avoid future repairs when problems are spotted early.
  • save energy as our engineer will check your boiler is running efficiently.
  • increase its life expectancy.

Most importantly an annual service ensures that your boiler is safe. Make sure you arrange for regular servicing as carbon monoxide leaks may be fatal. To maximise performance and reliability, it's important to keep your boiler and heating system well-maintained.

We have three options for an annual service:

One-off Service

Suitable for boilers that are in or out of guarantee, this includes a vigorous 14-point check on your boiler to maximise performance and ensure your boiler is safe.

From £109, one-off payment (inc VAT). Book your appointment online via myVAILLANT Web.

Boiler out of guarantee?

Vaillant Maintenance and Support Plan

If your boiler is out of guarantee and you have not already taken out a plan, you could take out the Maintenance and Support Plan. Provided by Domestic & General Services Limited, these plans are designed to maintain your boiler and controls, and to keep them working efficiently by providing you with an annual service each year. We offer two service plans if your boiler is no longer under guarantee:

Gold - £309.88 per year
Platinum - £329.88 per year
Boiler
Controls
Annual Service
Heating system (including radiators and exposed pipes)

Sign up to our Maintenance and Support Plans

If you want to discuss our service plans with a member of the team, call 0330 100 3143** to discuss your plan options.

Opening hours:
Monday - Friday: 8am - 6pm
Saturday: 8am - 3pm
Sunday: 8am - 12pm

Your annual boiler servicing options

  • Vaillant's Maintenance and Support plan

    Vaillant Maintenance and Support Plans are only suitable for domestic boilers under 15-years-old that are in good working order and out of guarantee. Your boiler also shouldn’t be protected by a similar plan.

    Your boiler protection plan will become effective 30 days after we receive your application, however, your boiler must be in good working condition when you apply or your plan might be invalidated.

    We’ll remind you when an annual service is due to book your Vaillant engineer visit.

    If you require a service for one of our commercial boilers, please call us on 0330 102 8570 to discuss your requirements.

    Why sign up to our Maintenance and Support plan?

    • Annual service to help maintain your boiler.
    • Ongoing hints and tips to keep the boiler in good working order and exclusive access to our Boiler Care portal.
    • Services and repairs carried out by Vaillant Gas Safe registered engineers.
    • Access to our dedicated Contact Centre: 7 days a week, 364 days a year.
    • Repairs up to the value of £1,500 if an issue is found during the annual service or your boiler stops working.
    • Contribution of £750 towards new boiler, if the existing boiler is deemed irreparable.

    If an issue is found during the annual service or your boiler stops working, we can arrange for onsite visits by our own nationwide network of Gas Safe registered boiler engineers, to the value of £1,500. If we are not able to repair your boiler or we decide that it is beyond economic repair, Domestic & General will arrange for your boiler to be replaced with a new one, up to the value of £750. Installation costs are not included.

    How can I pay for the Vaillant Maintenance Plan?

    The plan runs for 12 months and starts the day you take it out.

    Maintenance Plans paid for by direct debit are renewed automatically, unless you tell us otherwise, offering you and your heating system the peace of mind that comes with uninterrupted protection year after year.

    Renewal reminders are sent 21 days before renewal.

  • One off Servicing

    Our Annual Service is carried out by a Gas Safe registered engineer who will carry out a thorough performance and function check of the appliance, which includes the checklist below:

    ✓ Flue and terminal checked
    ✓ Combustion air checked
    ✓ All safety devices checked
    ✓ Gas pressure and heat input checked
    ✓ Operating pressure checked
    ✓ External controls checked
    ✓ Advice provided about efficient usage
    ✓ Combustion fan checked
    ✓ Heat exchangers checked
    ✓ Gas and water seals checked
    ✓ Burners checked and cleaned
    ✓ Ignition system checked
    ✓ Performance tested
    ✓ Water quality check

    In addition, it will include cleaning where necessary, of ignition systems and controls; minor adjustment of mechanical components, tightening of joints or lubrication of moving parts; and replacement of non-functional or serviceable components, to include, gaskets, screws and seals.

    The Annual Service is provided with a 30-day guarantee on the workmanship carried out.

    Any parts used in the provision of the Service will be guaranteed for a period of 12 months and will be replaced free of charge, including associated labour and call-out fees.

    The visit will not include the replacement of functional components such as the pump, fan, heat exchangers, internal controls, and casing or the replacement of external controls and accessories. For a full list of exclusions, please refer to our full terms and conditions.

    If our engineer finds that a repair is required during the service, and your appliance is outside the manufacturer's guarantee, we can quote for this whilst on site.

    The boiler should be in good working order and used for domestic purposes only.

    The fixed price Annual Service excludes commercial boilers ranging from 45kW – 280kW output. If you require a service for one of our commercial boilers, please call us on 0330 102 8570 to discuss your requirements.

*Payment when booking an appointment.

**Calls may be recorded and monitored for quality and training purposes. Our call centre is open 7 days a week 364 days a year. Calls cost up to 13p per minute. Calls from mobiles may cost considerably more.

General FAQs

  • Why should I choose Vaillant?

    Choosing Vaillant for your boiler repairs and servicing needs is a decision rooted in reliability, expertise, and quality.

    Homeowners can trust Vaillant's highly skilled experts, who bring years of experience and specialised knowledge to every service call, ensuring that your heating systems are maintained to the highest standards.

    By choosing Vaillant, you are investing in peace of mind, knowing that your home’s heating needs are in the hands of a company that prioritises quality, innovation, and environmental responsibility.

  • I already have an insurance policy for my Vaillant boiler - what do I do ?

    Please refer to your current documentation to contact your current provider.

  • I have a question about repairs, who can I speak to?

    You can submit your question via WhatsApp or you can call us on: 0330 102 8573**

  • Can I find a boiler engineer myself?

    We have our own network of Gas Safe registered engineers that we monitor and guarantee to carry out any necessary work.

    You are welcome to seek the assistance of a third-party Gas Safe engineer to carry out the work.

    Please note that they have not been approved by us, and Vaillant cannot accept any responsibility for their workmanship.

  • What do I do if I smell gas?

    If you begin to smell gas in your home, it is important to take swift action:

    • Call the National Gas Emergency Service on 0800 111 999.
    • Avoid turning on any lights or electrical equipment.
    • Open all doors and windows in your house,
    • Leave the premises as quickly as possible
    • The National Gas Emergency will send an engineer to secure your boiler and ensure that it is safe. You should then contact us for any repair that are needed.

  • How do I know what kind of boiler model I have?

    If you're unsure of what boiler model you have, you can check this by inspecting the front or underneath of your boiler, where the model number is typically displayed. If your boiler manual is to hand, it will list the boiler model in there.

  • What do I do if I have a problem with my boiler or central heating?

    If you would like to check if you need an engineer to fix your boiler, please call our technical line on 0344 736 0049 to discuss with one of our experts.