1. HeatingForce
  2. Boilers

Vaillant Boiler Service: What Are The Costs For Servicing A Vaillant Boiler?

Need a Vaillant serviced, but don’t want to get ripped off? We’ve got you covered! Welcome to our 3-minute guide to Vaillant boiler service cost.

In our 5-minute guide to Vaillant servicing costs, we’ll explain what you should expect to pay for boiler repair and maintenance, where to find quality Gas Safe boiler engineers, and how to decide if you need a replacement boiler.

Vaillant Boiler Service - Cost Guide

Want to book in a quote online for your boiler service before we carry on? You can do that here.

Prefer to stop wasting money on your tired boiler? Use this online boiler calculator from Heatable to work out what a replacement boiler will cost.

How Much Is a Vaillant Boiler Service?

You can expect to pay £100+ VAT to service a Vaillant, when using small, local heating companies.Vaillant boiler service

This maintenance price will increase to £85-120+vat for larger companies that employ dozens of Gas Safe registered engineers. I’d be suspicious of any heating company offering a boiler service below this cost.

As a precaution, before you book an appointment, always ask the Gas Safe registered engineer for their ID card and details, and validate them here.

What Repairs Are Covered In a Boiler Service Plan?

If you’re due for annual service on your Vaillant, which also happens to be faulty, don’t expect the engineer to fix it for free.

A boiler service is exactly that — a service.

So, if you require boiler repairs, advise your heating engineer ahead of time and they may give your Vaillant a fixed price repair quote. After the repairs, they can service the boiler as usual.

What’s Included In a Boiler Service Plan

Boiler engineers will be ticking things off their boiler service checklist when they’re at your property.

If you’re a landlord, you’ll need a Gas Safety certificate to be provided after the repair service is complete. Getting this certificate isn’t compulsory for homeowners, but it’s advisable: the certificate gives you some come-back if there’s an issue with the repairs or boiler services.

You’ll also be able to assess what the heating engineer has done. For instance, using a flue gas analyser, they’ll check the flue gases are within tolerance.

The details of the boiler tests can be provided via printout using some flue gas analysers. Alternatively, they should be written on the Gas Safety certificate.

What to Ask Your Engineer During Service

While you’re getting your boiler serviced, ask your engineer to inspect the internal boiler parts. Some boiler parts are extremely expensive. If the engineer notices they are blocked with debris, paying them to clean it out could save you 100s of pounds in the long run.

As well as a let-by test (gas leak test), ask them to check your boiler pressure. If your boiler is losing pressure, the fault (typically a leak in the central heating system) needs to be found and fixed.

Finally, if you have a boiler filter fitted, get the engineer to clean it out. These filters accumulate debris, and if they’re not emptied, this debris will circulate the pipes and radiators, causing damage and making your boiler less efficient.

And remember to confirm what exactly is included in your Vaillant service with your engineer before going ahead. Don’t just assume they’ll do all of the above as part of their boiler service package.

What kind of fuel does your boiler use?

Fixed price online with next day installation

Worcester boilers from as little as £1,965.

One-Off vs. Annual Service for Your Boiler

Repairing a boiler is expensive. Luckily, you can avoid most boiler problems by getting your boiler serviced annually and finding defects early, before they deteriorate.

As we mentioned above, cleaning out the heat exchanger or servicing the boiler filter to stop sludge build annually will save you a tonne of cash in the long run on boiler reparis and heating bills.

So, in our opinion, it’s always best to opt for an annual servicing plan.

Where to Find And Book A Vaillant Service Engineer

There are 100s of qualified Gas Safe engineers who are experts at boiler repairs, heating system servicing, and maintaining and caring for Vaillant boilers. You can get a boiler maintenance quote here.

My Engineer Says I Need a New Boiler, Are They Ripping Me Off?

Believe it or not, a good Vaillant engineer can make just as much money on service and repairs as a boiler installer. So, don’t assume that your service engineer is trying to rip you off by recommending a new boiler instead of repairs.

As a rule of thumb, if your boiler is out of warranty, over 5-years old, and has a potential repair bill of over £500 or more, it’s worth considering a replacement. Like with any mechanical appliance, once one part fails, others soon follow. To spend £500+ to repair a boiler that might only last a couple of years is a complete waste of money.

If you’re considering boiler replacement, have a flick through our guide to new boiler installation costs here. If you have any questions, we’d be happy to answer them.

You can also get fixed price boiler quotes by filling out this quick, anonymous form from Heatable. They’re a boiler installation company that offer excellent prices on Vaillant boilers and other top brands, including Worcester, Viessmann, and others.

Vaillant boiler service

What’s the Next Step for Your Boiler?

Thanks for reading our guide to Vaillant boiler servicing. Is there anything we missed? If we have, or you have any questions, please leave us a comment below and we’ll get back to you as soon as we can.



Avoid Expensive Breakdown Costs
Boiler Replacement Promise: If it's under 7 years old and we can’t repair it, we’ll replace it.
Try YourRepair. From £8/mo
All plans include: annual boiler service, all parts and labour, unlimited support and 24hr helpline.
  1. Cathy Thomson says:

    Have an ecoTEC plus boiler..Howm much is a service please ?

    1. Alex Ion says:

      Hi Cathy, you may want to look into boiler cover. At YourReparir they come with a free service. See the links at the end of each article on the site.

Leave a comment

Your email address will not be published. Required fields are marked *