How we're operating during the COVID-19 pandemic

Find out more How we’re operating during COVID-19
  • Get the best quotes, fast!
  • Over 5,000 engineers across the UK
  • Gas Safe registered engineers

Need a New Boiler?

Get FREE no-obligation quotes now!

  • No delays! Get quotes today
  • Compare quotes & get the best prices
  • Gas Safe & OFTEC registered engineers
 4.8 stars

1,285 reviews

 4.8 stars

1,285 reviews

14 reviews
5 The Glen, Rayleigh, Essex, SS6 7QZ
Boiler Guide member since April 2020

1st Boilers Limited

1st Boilers Limited are Gas Safe registered heating engineers who specialise in gas boilers. For similar replacement boiler companies in this area please visit the Rayleigh boiler page.

We specialise in

Gas Vented Cylinders, Unvented Cylinders

Call Us Now

5 The Glen, Rayleigh, Essex, SS6 7QZ
Boiler Guide member since April 2020

Hi, my name is Mark and I'm the owner of 1st Boilers.

We are specialists in the installation of new A-Rated Boilers and are passionate about providing a 1st class service from start to finish.

If you are looking for a new boiler we are the company to call!

We are very passionate about our workmanship and you will see from the pictures of our work that this is true.

We fully flush every single one of our boiler installations out so you can be assured that your system will be left in perfect condition after the installation is complete.

We pride ourselves on customer service and job satisfaction with reviews and testimonials to match.

Services we provide:

Boiler installations 

Power flushing


Reasons to chooose us:

We can provide flexible low rate boiler finance with no deposit.

We accept all major debit and credit cards.

We are Gas Safe registered and members of the government backed scheme Trustmark.

We are happy to give out free advice and answer any questions you may have.

We will always follow up a installation by one of our engineers with a follow up call a week after completion to ask if our customers are happy and to gather feedback about their experience.

Contact us today to discuss your requirements or visit our website for more information on how we can help. We look forward to hearing from you.


Gas Safe logo 550663

Need a new boiler?

Get FREE no-obligation quotes now!

Excellent 4.8 out of 5