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No Fix No Fee on Big Brands

  • Fixed price repairs†
  • Same day & next day repairs available
  • Gas safe engineers
  • Full guarantee on all repairs

† Find out whether our amazing fixed price repair and no fix no fee offers are available for your manufacturer by getting a quote today.

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Viessmann boiler repairs in 3 simple steps

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1. Complete our online form
and get a quote in seconds


2. Select your repair date
and our engineer will be there

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3. Relax now your appliance
is back up and running!

Viessmann boiler repairs

As the UK's first choice boiler repair company, we're approved to repair all boiler models from Viessmann. Book your repair with us today in a few simple steps- select your appliance type, choose your preferred repair date, and wait for one of our expert engineers to fix your appliance.

Whatever your Viessmann boiler fault the repair experts at Go Assist are in your area and are ready to fix any fault fast. Contact us today on 0333 733 1234.

Repair, don't replace your broken Viessmann boiler 

We understand that when your boiler breaks down the simplest thing to do is to go online and buy a new one, right? At Go Assist, our motto is 'repair, don't replace', meaning we'll do everything we can to make sure the existing appliance is back up and running quickly, easily and affordably, saving you money on a costly replacement.

Ready to book your repair? Book online now and we'll have your Viessmann boiler working again in no time!

Call us now

0333 733 1234