Boiler Installation & Servicing Specialists

verified Professional Service Gas Safe Registered
history Typical Duration Day Rate / Survey
category Service Category Plumbing
request_quote Pricing Model Free Survey & Fixed Quote

Service Overview

We fit new boilers and service existing ones. All boiler work is carried out by a Gas Safe registered engineer, as UK law requires for any work on gas appliances.

A new boiler starts with a survey. We look at how much heating and hot water your home needs, check the existing pipework and flue, and help you choose the right type of boiler: combi, system or conventional. You get a clear quote with the price and timings before any work starts.

A like-for-like swap usually takes a day. Changing a regular boiler to a combi, or moving the boiler to a new place, takes 1.5 to 4 days.

Priced after a free survey at your home: you get a fixed quote before any work starts, and there is no obligation to go ahead.

What we usually find

  • Low pressure. Worcester Bosch puts the right reading at 1 to 1.5 bar with the system cold; below 1 bar a boiler may stop. Topping up more than once or twice a year points to a leak or a fault.
  • A frozen condensate pipe. In a hard frost the plastic pipe that drains a condensing boiler outside can freeze. The boiler gurgles, stops and shows a fault code.
  • Sludge in the system. Radiators stay cold at the bottom and the boiler grows noisy. A new boiler goes in after the system is flushed, with a magnetic filter to catch what is left.

The visit, step by step

  1. On installation day we turn off the water, drain the system and take out the old boiler, with any tanks or cylinders you no longer need.
  2. We mount the new boiler level and secure, and fit and seal the flue through the wall.
  3. We flush the system, fit a magnetic filter, and connect the flow, return, gas and condensate pipes.
  4. We test everything, carry out the gas safety checks and set up your controls, smart thermostats included.
  5. We hand over the compliance and warranty certificates, and notify the installation as Building Regulations require.

Before we arrive

  • If you smell gas, do not wait for a visit. Open doors and windows, turn the gas off at the meter, and call the National Gas Emergency number, 0800 111 999.
  • Have the boiler's make and model to hand, and any fault code it shows.
  • Clear the way to the boiler, the gas meter and the stop valve.

What is included

  • A survey and a clear quote before any work starts
  • Taking out the old boiler, and any tanks or cylinders you no longer need
  • Flushing the system and fitting a magnetic filter
  • Gas safety checks, your controls set up, and the compliance and warranty certificates
  • A yearly service, with a written record of what was checked

Questions about boiler installation & servicing

How often should a boiler be serviced? expand_more
Once a year. Gas Safe Register advises a yearly service to keep gas appliances safe and working well, and most manufacturers need one to keep the warranty valid. We check that the boiler burns gas safely, test the flue and the pressure, clean the key parts and give you a record of the service.
How do I check that an engineer is Gas Safe registered? expand_more
Ask for the engineer's ID card and read both sides. The front has their photo and licence number; the back lists the work they are qualified for, which for a boiler should include gas boilers. The licence number can be checked on the Register's website.
What paperwork comes with a new boiler? expand_more
The warranty papers, and a Building Regulations Compliance Certificate. The installation has to be notified to the local authority within 30 days, which we do through Gas Safe Register. The Register then posts the certificate to you, and you can check online that it was done.

Deposits, cancelling and paying are on our FAQ page.

Worth doing in the same visit

Radiator & TRV Replacement from £90 Pipe Repairs from £90

Areas we cover

Ashtead Banstead Cheam Chessington Cobham Dorking Epsom Esher Guildford Kingston upon Thames Leatherhead Molesey New Malden Reigate Richmond Surbiton Sutton Twickenham Walton-on-Thames & Weybridge Wimbledon Worcester Park & Ewell
Zapryan - Owner & Lead Plumber
Your Local Expert

Hi, I'm Zapryan – Owner & Lead Plumber in Surrey

I've been in the construction industry since 2004, and I believe the secret to stress-free renovations is simple: turn up on time, manage the trades properly, and do the job right the first time. I personally survey every project and work alongside our teams on-site until the final checklist is complete. You'll always have a direct line to me, and my personal guarantee that the work is finished to perfection.