Boiler Servicing & repairs


Monday - friday
8.00AM - 6.00PM
  • 01494 452502
  • 079 4479 0261

about Boiler Servicing and repairs

the importance of Preventative maintenance

All too often we are called to service boilers, which have supposedly been under contract with a service provider for several years, where we find that no preventative maintenance whatsoever has been carried out. Often national household names, in whom many people place the most trust, will be the worst offenders for this.

A boiler service should always include the following
  • Visually inspect the appliance and flue in its entirety including flues running through loft spaces
  • Check case seals
  • Removal of the boiler case is essential every service!
  • Visual inspection of the inside of the appliance
  • Remove and clean condensate trap
  • Check internal condition of heat exchanger, clean as required
  • Check ignition electrodes clean/replace as required
  • On most modern boilers the heat exchanger combustion seals require replacement at maximum five yearly intervals, failure to do this can result in a dangerous potentially life threatening situation occurring
  • Clean any system filter installed (this also provides crucial information on system water condition)
  • Check system pressure and expansion vessel (sealed systems only)
  • Check for signs of leakage
  • Check operating gas pressure and/or heat input
  • Check safety devices
  • Check operation of flue and clearance of products of combustion
  • Flue gas analysis with calibrated flue gas analyser
  • Produce written record of work done and test results

We would typically expect a boiler service to last between 45minutes and 1.5 hours, depending upon age and condition of the boiler

All boilers should be serviced annually, If a boiler is not properly maintained, it will be unreliable and may ultimately become dangerous. choosing the right service provider is essential!

If you choose to have your boiler serviced by Smith’s Heating Services Ltd, we will then send you a reminder two weeks before the anniversary of that service.

about us

Smith’s Heating Services Ltd is a family run, Gas Safe and Oftec registered business serving High Wycombe and surrounding areas.

We specialise in central heating systems and boiler installations, but also have wide knowledge and experience in most areas of plumbing. We are qualified and registered to work on Natural Gas, LPG and Oil. We are also qualified to install un-vented hot water systems and fully trained on UK Water regulations. We provide comprehensive advice, high-quality professional work and a personal service.

why choose us

Over 90% of our work comes from referrals! We don’t just want to fit a new boiler, we want to build a long-term relationship with customers and have many customers that have used us again when they have moved house.
  • heating & plumbing specialists
  • affordable prices
  • no hidden costs
  • Finance available (subject to status)

get in touch

Got a question or need help? Don’t hesitate to contact us directly and we will be happy to assist you.


7 Derehams Lane
High Wycombe HP10 9RH



01494 452502


079 4479 0261

emergency plumbing

Imagine you come home one day to discover that a blocked pipe has flooded your home. You’re going to need professional help quickly!

8.00am – 6.00 pm Monday to Friday

If you have an emergency outside of these times please call, or email and we will do our best to assist.

  • 01494 452502
  • 079 4479 0261