Gas Boiler Servicing

Book A Gas Boiler Service!

Getting a regular gas boiler service is important, even if you do not realise it!

Regardless if it is for the upkeep of a warranty of a newer boiler, maintaining an existing boiler proactively, for the sale of a home, or the purchase of a new home, a boiler service from us is exceptional value for money!

Most companies do not service boilers! In most instances, it is nothing more than a safety check! Our boiler services are different, as we do everything practically possible to reduce the likelihood of boiler faults between annual services.

We provide a complete boiler service package that is hard to beat. Do not waste time and money with others, get the best value for money possible with a boiler a service from us!

So Why Use Us?

  • We have transparent prices, show up on time and are highly professional
  • We are Gas Safe registered
  • Our engineers are registered heating engineers with the CIPHE
  • We are a TrustMark & FairTrades registered company


We give 20% discounts for two or more gas appliances serviced in the same property at the same time!

You will rarely get a boiler service like ours for what we charge!

” Part of the reason why I started Forthright was to be able to offer high-quality boiler services while providing excellent value for money. Too many companies give poor customer service and a boiler ‘service’ that is laughable, as it does nothing to protect the customer’s interest other than a basic safety check!”

What Our Platinum Quality As Standard Boiler Service Includes:

  • A full manufacturer’s service, including a full strip and clean
  • The testing of the water quality within your heating system
  • The testing and bleeding of radiators where required
  • Full written and detailed paperwork for each appliance
  • The re-pressurisation of expansion vessels*
  • Internal condensate pipework cleansing*
  • The cleaning of magnetic filtration units*

*Where applicable

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A Detailed Account Of What We Check During A Gas Boiler Service

  • The boilers general condition will be inspected. Where it is deteriorated, you will be notified of such faults or potential faults that are likely to occur in the near future.
  • The boilers location and clearances will be checked to ensure that the boiler is fully accessible and maintainable.
  • The boilers operating pressures and gas usage will be checked.
  • Any ventilation requirements will be checked to see if they are adequate.
  • The flue will be inspected to ensure that it is free from damage, obstruction and has been installed and supported correctly.
  • Where applicable, the combustion will be checked with a flue gas analyser to confirm that the products of combustion are within parameters and no dangerous levels of carbon monoxide exist.
  • Where applicable, flue flow and spillage checks will be conducted to ensure that the flue (typically open flued) is operating in a safe manner.
  • All safety devices and controls on the boiler will be checked to ensure they are working correctly.
  • The burner, where applicable, will be inspected and checked for defects. Some boilers have pressure tests to check this.
  • The ignition and flame picture will be checked to ensure the boiler is igniting correctly and the flames being produced that are one of complete combustion. With some appliances the scope to do this is limited.
  • The primary heat exchanger will be checked to ensure it is free from sediment/dirt and other defects, such as cracks/splits.
  • The electrics will be checked to ensure that the boiler is correctly wired, fused and such things as the polarity through the appliance is correct.
  • Any seals that prevent the products of combustion from entering the internal spaces of the property will be inspected to ensure they are still in good condition.
  • The general circulation of the water around the heating system will be checked to ensure the pump is working correctly and no blockages exist which prevent the boiler from working normally.
  • Any condensation traps will be cleaned from debris, although due to the poor installation of some boilers this is not always possible.
  • Expansion vessels, where applicable, will be checked to ensure that their internal air pressure is adequate and no discharge is evident from the pressure relief valve.
  • System pressure, where applicable, will be set to the correct cold pressure.
  • The condensate pipework, where applicable, will be inspected to ensure that it is of the correct size, and where required, is correctly insulated.
  • CO2 values will be checked, and where applicable, calibrated to within the manufactures tolerances.
  • A general inspection of the boilers components will be undertaken to ensure no signs of distress or failure are present.
  • Any other aspect specified in the manufactures instructions as a service requirement will be undertaken.


In addition:

  • We will clean magnetic filters where it is practical to do so
  • We will check the radiators are heating up correctly
  • We will visually inspect any hot water storeage you many have
  • We will check the water quality of the central heating system

Frequently Asked Questions

We provide a 3-hour arrival window, except for first appointments which are accurate to 15 minutes 99% of the time.

A typical boiler service takes 40-60 minutes.

We accept all major forms of credit and debit cards.

No, any defective parts found to be while doing a boiler service will be quoted for separately.

You will receive a detailed service report sheet and receipt.

We provide free annual boiler service reminders to our clients.